May 2021 - Kernel - mailweb.openeuler.org

perf spe-c2c record失败的问题
by haoxin 15 Dec '21

15 Dec '21

您好，我采用最细的openEuler-1.0测试perf spe-c2c的功能，但是发现/sys/devices下没有arm_spe_0这个目录执行perf spe-c2c record时显示： event syntax error: 'arm_spe_0/ts_enable=1,pct_enable=1,pa_enable=1,load_filter=1,jitter=1,store_filter=1,min_latency=0/' \___ Cannot find PMU `arm_spe_0'. Missing kernel support? 想问下您这是为什么？需要哪里开启spe功能吗？

3 2

[PATCH] 4.19: PTP_KVM support for arm/arm64
by lisiheng 14 Sep '21

14 Sep '21

From: lisiheng <lisiheng(a)bingosoft.net> PTP_KVM is used for high precision time sync between host and guests. It relies on transferring the wall clock and counter value from the host to the guest using a KVM-specific hypercall. mainline inclusion from mainline-v4.19 category: feature bugzilla:https://gitee.com/openeuler/kernel/issues/I3R900 CVE: NA Reference: https://www.kernel.org/doc/html/latest/_sources/virt/kvm/arm/ptp_kvm.rst.txt https://github.com/kata-containers/packaging/blob/master/kernel/patches/4.1… Signed-off-by: lisiheng <lisiheng(a)bingosoft.net> --- drivers/clocksource/arm_arch_timer.c | 24 ++++++ drivers/ptp/Kconfig | 2 +- drivers/ptp/Makefile | 1 + drivers/ptp/ptp_kvm_arm64.c | 52 ++++++++++++ drivers/ptp/{ptp_kvm.c => ptp_kvm_common.c} | 89 +++++---------------- drivers/ptp/ptp_kvm_x86.c | 87 ++++++++++++++++++++ fs/jbd2/transaction.c | 17 ---- include/asm-generic/ptp_kvm.h | 12 +++ include/linux/arm-smccc.h | 5 ++ virt/kvm/arm/hypercalls.c | 14 ++++ 10 files changed, 216 insertions(+), 87 deletions(-) create mode 100644 drivers/ptp/ptp_kvm_arm64.c rename drivers/ptp/{ptp_kvm.c => ptp_kvm_common.c} (55%) create mode 100644 drivers/ptp/ptp_kvm_x86.c create mode 100644 include/asm-generic/ptp_kvm.h diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index 6847a5fe13fd..f84bed34e9ea 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -1653,3 +1653,27 @@ static int __init arch_timer_acpi_init(struct acpi_table_header *table) } TIMER_ACPI_DECLARE(arch_timer, ACPI_SIG_GTDT, arch_timer_acpi_init); #endif + +#if IS_ENABLED(CONFIG_PTP_1588_CLOCK_KVM) +#include <linux/arm-smccc.h> +int kvm_arch_ptp_get_clock_fn(long *cycle, struct timespec64 *ts, + struct clocksource **cs) +{ + struct arm_smccc_res hvc_res; + + arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID, + &hvc_res); + + if ((long)(hvc_res.a0) < 0) + return -EOPNOTSUPP; + + ts->tv_sec = hvc_res.a0; + ts->tv_nsec = hvc_res.a1; + *cycle = hvc_res.a2 << 32 | hvc_res.a3; + *cs = &clocksource_counter; + + return 0; +} +EXPORT_SYMBOL_GPL(kvm_arch_ptp_get_clock_fn); +#endif + diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index d137c480db46..318b3f5df1ea 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig @@ -109,7 +109,7 @@ config PTP_1588_CLOCK_PCH config PTP_1588_CLOCK_KVM tristate "KVM virtual PTP clock" depends on PTP_1588_CLOCK - depends on KVM_GUEST && X86 + depends on KVM_GUEST && X86 || ARM64 default y help This driver adds support for using kvm infrastructure as a PTP diff --git a/drivers/ptp/Makefile b/drivers/ptp/Makefile index 19efa9cfa950..1bf4940a88a6 100644 --- a/drivers/ptp/Makefile +++ b/drivers/ptp/Makefile @@ -4,6 +4,7 @@ # ptp-y := ptp_clock.o ptp_chardev.o ptp_sysfs.o +ptp_kvm-y := ptp_kvm_common.o ptp_kvm_$(ARCH).o obj-$(CONFIG_PTP_1588_CLOCK) += ptp.o obj-$(CONFIG_PTP_1588_CLOCK_DTE) += ptp_dte.o obj-$(CONFIG_PTP_1588_CLOCK_IXP46X) += ptp_ixp46x.o diff --git a/drivers/ptp/ptp_kvm_arm64.c b/drivers/ptp/ptp_kvm_arm64.c new file mode 100644 index 000000000000..07ee2fc2c7b1 --- /dev/null +++ b/drivers/ptp/ptp_kvm_arm64.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Virtual PTP 1588 clock for use with KVM guests + * Copyright (C) 2019 ARM Ltd. + * All Rights Reserved + */ + +#include <linux/kernel.h> +#include <linux/err.h> +#include <asm/hypervisor.h> +#include <linux/module.h> +#include <linux/psci.h> +#include <linux/arm-smccc.h> +#include <linux/timecounter.h> +#include <linux/sched/clock.h> +#include <asm/arch_timer.h> + + +int kvm_arch_ptp_init(void) +{ + struct arm_smccc_res hvc_res; + + arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID, + &hvc_res); + if ((long)(hvc_res.a0) < 0) + return -EOPNOTSUPP; + + return 0; +} + +int kvm_arch_ptp_get_clock_generic(struct timespec64 *ts, + struct arm_smccc_res *hvc_res) +{ + arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID, + hvc_res); + if ((long)(hvc_res->a0) < 0) + return -EOPNOTSUPP; + + ts->tv_sec = hvc_res->a0; + ts->tv_nsec = hvc_res->a1; + + return 0; +} + +int kvm_arch_ptp_get_clock(struct timespec64 *ts) +{ + struct arm_smccc_res hvc_res; + + kvm_arch_ptp_get_clock_generic(ts, &hvc_res); + + return 0; +} diff --git a/drivers/ptp/ptp_kvm.c b/drivers/ptp/ptp_kvm_common.c similarity index 55% rename from drivers/ptp/ptp_kvm.c rename to drivers/ptp/ptp_kvm_common.c index c67dd11e08b1..69a7cd05d188 100644 --- a/drivers/ptp/ptp_kvm.c +++ b/drivers/ptp/ptp_kvm_common.c @@ -1,29 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Virtual PTP 1588 clock for use with KVM guests * * Copyright (C) 2017 Red Hat Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/device.h> #include <linux/err.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/module.h> #include <uapi/linux/kvm_para.h> #include <asm/kvm_para.h> -#include <asm/pvclock.h> -#include <asm/kvmclock.h> -#include <uapi/asm/kvm_para.h> +#include <asm-generic/ptp_kvm.h> #include <linux/ptp_clock_kernel.h> @@ -34,56 +24,31 @@ struct kvm_ptp_clock { DEFINE_SPINLOCK(kvm_ptp_lock); -static struct pvclock_vsyscall_time_info *hv_clock; - -static struct kvm_clock_pairing clock_pair; -static phys_addr_t clock_pair_gpa; static int ptp_kvm_get_time_fn(ktime_t *device_time, struct system_counterval_t *system_counter, void *ctx) { - unsigned long ret; + unsigned long ret, cycle; struct timespec64 tspec; - unsigned version; - int cpu; - struct pvclock_vcpu_time_info *src; + struct clocksource *cs; spin_lock(&kvm_ptp_lock); preempt_disable_notrace(); - cpu = smp_processor_id(); - src = &hv_clock[cpu].pvti; - - do { - /* - * We are using a TSC value read in the hosts - * kvm_hc_clock_pairing handling. - * So any changes to tsc_to_system_mul - * and tsc_shift or any other pvclock - * data invalidate that measurement. - */ - version = pvclock_read_begin(src); - - ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING, - clock_pair_gpa, - KVM_CLOCK_PAIRING_WALLCLOCK); - if (ret != 0) { - pr_err_ratelimited("clock pairing hypercall ret %lu\n", ret); - spin_unlock(&kvm_ptp_lock); - preempt_enable_notrace(); - return -EOPNOTSUPP; - } - - tspec.tv_sec = clock_pair.sec; - tspec.tv_nsec = clock_pair.nsec; - ret = __pvclock_read_cycles(src, clock_pair.tsc); - } while (pvclock_read_retry(src, version)); + + ret = kvm_arch_ptp_get_clock_fn(&cycle, &tspec, &cs); + if (ret != 0) { + pr_err_ratelimited("clock pairing hypercall ret %lu\n", ret); + spin_unlock(&kvm_ptp_lock); + preempt_enable_notrace(); + return -EOPNOTSUPP; + } preempt_enable_notrace(); - system_counter->cycles = ret; - system_counter->cs = &kvm_clock; + system_counter->cycles = cycle; + system_counter->cs = cs; *device_time = timespec64_to_ktime(tspec); @@ -126,17 +91,13 @@ static int ptp_kvm_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) spin_lock(&kvm_ptp_lock); - ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING, - clock_pair_gpa, - KVM_CLOCK_PAIRING_WALLCLOCK); + ret = kvm_arch_ptp_get_clock(&tspec); if (ret != 0) { pr_err_ratelimited("clock offset hypercall ret %lu\n", ret); spin_unlock(&kvm_ptp_lock); return -EOPNOTSUPP; } - tspec.tv_sec = clock_pair.sec; - tspec.tv_nsec = clock_pair.nsec; spin_unlock(&kvm_ptp_lock); memcpy(ts, &tspec, sizeof(struct timespec64)); @@ -176,22 +137,12 @@ static void __exit ptp_kvm_exit(void) static int __init ptp_kvm_init(void) { - long ret; - - if (!kvm_para_available()) - return -ENODEV; - clock_pair_gpa = slow_virt_to_phys(&clock_pair); - hv_clock = pvclock_get_pvti_cpu0_va(); - - if (!hv_clock) - return -ENODEV; - - ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING, clock_pair_gpa, - KVM_CLOCK_PAIRING_WALLCLOCK); - if (ret == -KVM_ENOSYS || ret == -KVM_EOPNOTSUPP) - return -ENODEV; + int ret; + ret = kvm_arch_ptp_init(); + if (ret) + return -EOPNOTSUPP; kvm_ptp_clock.caps = ptp_kvm_caps; kvm_ptp_clock.ptp_clock = ptp_clock_register(&kvm_ptp_clock.caps, NULL); diff --git a/drivers/ptp/ptp_kvm_x86.c b/drivers/ptp/ptp_kvm_x86.c new file mode 100644 index 000000000000..a52cf1c2990c --- /dev/null +++ b/drivers/ptp/ptp_kvm_x86.c @@ -0,0 +1,87 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Virtual PTP 1588 clock for use with KVM guests + * + * Copyright (C) 2017 Red Hat Inc. + */ + +#include <asm/pvclock.h> +#include <asm/kvmclock.h> +#include <linux/module.h> +#include <uapi/asm/kvm_para.h> +#include <uapi/linux/kvm_para.h> +#include <linux/ptp_clock_kernel.h> + +phys_addr_t clock_pair_gpa; +struct kvm_clock_pairing clock_pair; +struct pvclock_vsyscall_time_info *hv_clock; + +int kvm_arch_ptp_init(void) +{ + int ret; + + if (!kvm_para_available()) + return -ENODEV; + + clock_pair_gpa = slow_virt_to_phys(&clock_pair); + hv_clock = pvclock_get_pvti_cpu0_va(); + if (!hv_clock) + return -ENODEV; + + ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING, clock_pair_gpa, + KVM_CLOCK_PAIRING_WALLCLOCK); + if (ret == -KVM_ENOSYS || ret == -KVM_EOPNOTSUPP) + return -ENODEV; + + return 0; +} + +int kvm_arch_ptp_get_clock(struct timespec64 *ts) +{ + long ret; + + ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING, + clock_pair_gpa, + KVM_CLOCK_PAIRING_WALLCLOCK); + if (ret != 0) + return -EOPNOTSUPP; + + ts->tv_sec = clock_pair.sec; + ts->tv_nsec = clock_pair.nsec; + + return 0; +} + +int kvm_arch_ptp_get_clock_fn(unsigned long *cycle, struct timespec64 *tspec, + struct clocksource **cs) +{ + unsigned long ret; + unsigned int version; + int cpu; + struct pvclock_vcpu_time_info *src; + + cpu = smp_processor_id(); + src = &hv_clock[cpu].pvti; + + do { + /* + * We are using a TSC value read in the hosts + * kvm_hc_clock_pairing handling. + * So any changes to tsc_to_system_mul + * and tsc_shift or any other pvclock + * data invalidate that measurement. + */ + version = pvclock_read_begin(src); + + ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING, + clock_pair_gpa, + KVM_CLOCK_PAIRING_WALLCLOCK); + tspec->tv_sec = clock_pair.sec; + tspec->tv_nsec = clock_pair.nsec; + *cycle = __pvclock_read_cycles(src, clock_pair.tsc); + } while (pvclock_read_retry(src, version)); + + *cs = &kvm_clock; + + return 0; +} diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index ffa6d3530f4b..4055929a043c 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -2085,7 +2085,6 @@ int jbd2_journal_try_to_free_buffers(journal_t *journal, { struct buffer_head *head; struct buffer_head *bh; - bool has_write_io_error = false; int ret = 0; J_ASSERT(PageLocked(page)); @@ -2110,26 +2109,10 @@ int jbd2_journal_try_to_free_buffers(journal_t *journal, jbd_unlock_bh_state(bh); if (buffer_jbd(bh)) goto busy; - - /* - * If we free a metadata buffer which has been failed to - * write out, the jbd2 checkpoint procedure will not detect - * this failure and may lead to filesystem inconsistency - * after cleanup journal tail. - */ - if (buffer_write_io_error(bh)) { - pr_err("JBD2: Error while async write back metadata bh %llu.", - (unsigned long long)bh->b_blocknr); - has_write_io_error = true; - } } while ((bh = bh->b_this_page) != head); ret = try_to_free_buffers(page); - busy: - if (has_write_io_error) - jbd2_journal_abort(journal, -EIO); - return ret; } diff --git a/include/asm-generic/ptp_kvm.h b/include/asm-generic/ptp_kvm.h new file mode 100644 index 000000000000..d87a08495710 --- /dev/null +++ b/include/asm-generic/ptp_kvm.h @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/drivers/clocksource/arm_arch_timer.c + * + * Copyright (C) 2019 ARM Ltd. + * All Rights Reserved + */ + +int kvm_arch_ptp_init(void); +int kvm_arch_ptp_get_clock(struct timespec64 *ts); +int kvm_arch_ptp_get_clock_fn(unsigned long *cycle, + struct timespec64 *tspec, void *cs); diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index 5b5f52ca6ac8..5a46bb6df894 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -76,6 +76,11 @@ ARM_SMCCC_SMC_32, \ 0, 1) +#define ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID \ + ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ + ARM_SMCCC_SMC_32, \ + 0, 2) + #define ARM_SMCCC_ARCH_WORKAROUND_1 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ diff --git a/virt/kvm/arm/hypercalls.c b/virt/kvm/arm/hypercalls.c index 7a6c5f18dff2..495b25b9ed13 100644 --- a/virt/kvm/arm/hypercalls.c +++ b/virt/kvm/arm/hypercalls.c @@ -15,6 +15,9 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu) u32 val = SMCCC_RET_NOT_SUPPORTED; u32 feature; gpa_t gpa; + struct timespec64 ts; + u64 cycles, cycle_high, cycle_low; + struct system_time_snapshot systime_snapshot; switch (func_id) { case ARM_SMCCC_VERSION_FUNC_ID: @@ -63,6 +66,17 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu) case ARM_SMCCC_HV_PV_SCHED_KICK_CPU: val = kvm_pvsched_kick_vcpu(vcpu); break; + + case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID: + ktime_get_real_ts64(&ts); + ktime_get_snapshot(&systime_snapshot); + cycles = systime_snapshot.cycles - vcpu_vtimer(vcpu)->cntvoff; + cycle_high = cycles >> 32; + cycle_low = cycles << 32 >> 32; + + smccc_set_retval(vcpu, ts.tv_sec, ts.tv_nsec, cycle_high, cycle_low); + return 1; + default: return kvm_psci_call(vcpu); } -- 2.23.0

2 4

[PATCH kernel-4.19] ata: ahci: Disable SXS for Hisilicon Kunpeng920
by Yang Yingliang 31 May '21

31 May '21

From: Xingui Yang <yangxingui(a)huawei.com> mainline inclusion from mainline-v5.12-rc6 commit 234e6d2c18f5 category: bugfix bugzilla: NA CVE: NA On Hisilicon Kunpeng920, ESP is set to 1 by default for all ports of SATA controller. In some scenarios, some ports are not external SATA ports, and it cause disks connected to these ports to be identified as removable disks. So disable the SXS capability on the software side to prevent users from mistakenly considering non-removable disks as removable disks and performing related operations. Signed-off-by: Xingui Yang <yangxingui(a)huawei.com> Signed-off-by: Luo Jiaxing <luojiaxing(a)huawei.com> Reviewed-by: John Garry <john.garry(a)huawei.com> Link: https://lore.kernel.org/r/1615544676-61926-1-git-send-email-luojiaxing@huaw… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yang Xingui <yangxingui(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/ata/ahci.c | 5 +++++ drivers/ata/ahci.h | 1 + drivers/ata/libahci.c | 5 +++++ 3 files changed, 11 insertions(+) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 8df0ec85cc7b9..bfb4c7a677717 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1761,6 +1761,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) hpriv->flags |= AHCI_HFLAG_NO_DEVSLP; #ifdef CONFIG_ARM64 + if (pdev->vendor == PCI_VENDOR_ID_HUAWEI && + pdev->device == 0xa235 && + pdev->revision < 0x30) + hpriv->flags |= AHCI_HFLAG_NO_SXS; + if (pdev->vendor == 0x177d && pdev->device == 0xa01c) hpriv->irq_handler = ahci_thunderx_irq_handler; #endif diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index 9290e787abdc4..52d0851653e5f 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -254,6 +254,7 @@ enum { AHCI_HFLAG_IS_MOBILE = (1 << 25), /* mobile chipset, use SATA_MOBILE_LPM_POLICY as default lpm_policy */ + AHCI_HFLAG_NO_SXS = (1 << 28), /* SXS not supported */ /* ap->flags bits */ diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 4577f76e736bf..faead87546106 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -509,6 +509,11 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv) cap |= HOST_CAP_ALPM; } + if ((cap & HOST_CAP_SXS) && (hpriv->flags & AHCI_HFLAG_NO_SXS)) { + dev_info(dev, "controller does not support SXS, disabling CAP_SXS\n"); + cap &= ~HOST_CAP_SXS; + } + if (hpriv->force_port_map && port_map != hpriv->force_port_map) { dev_info(dev, "forcing port_map 0x%x -> 0x%x\n", port_map, hpriv->force_port_map); -- 2.25.1

1 0

[PATCH kernel-4.19 1/6] NFS: Refactor nfs_instantiate() for dentry referencing callers
by Yang Yingliang 31 May '21

31 May '21

From: Benjamin Coddington <bcodding(a)redhat.com> mainline inclusion from mainline-v5.4-rc1 commit 406cd91533dcc5e82ef2373c39e6a531d944131e category: bugfix bugzilla: NA CVE: NA -------------------------------- Since commit b0c6108ecf64 ("nfs_instantiate(): prevent multiple aliases for directory inode"), nfs_instantiate() may succeed without actually instantiating the dentry that was passed in. That can be problematic for some callers in NFSv3, so this patch breaks things up so we can get the actual dentry obtained. Signed-off-by: Benjamin Coddington <bcodding(a)redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker(a)Netapp.com> Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/nfs/dir.c | 41 +++++++++++++++++++++++++++-------------- include/linux/nfs_fs.h | 3 +++ 2 files changed, 30 insertions(+), 14 deletions(-) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 733fd9e4f0a15..0252d9af03e81 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1692,24 +1692,23 @@ static int nfs4_lookup_revalidate(struct dentry *dentry, unsigned int flags) #endif /* CONFIG_NFSV4 */ -/* - * Code common to create, mkdir, and mknod. - */ -int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle, +struct dentry * +nfs_add_or_obtain(struct dentry *dentry, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label) { struct dentry *parent = dget_parent(dentry); struct inode *dir = d_inode(parent); struct inode *inode; - struct dentry *d; - int error = -EACCES; + struct dentry *d = NULL; + int error; d_drop(dentry); /* We may have been initialized further down */ if (d_really_is_positive(dentry)) goto out; + if (fhandle->size == 0) { error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, NULL); if (error) @@ -1725,18 +1724,32 @@ int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle, } inode = nfs_fhget(dentry->d_sb, fhandle, fattr, label); d = d_splice_alias(inode, dentry); - if (IS_ERR(d)) { - error = PTR_ERR(d); - goto out_error; - } - dput(d); out: dput(parent); - return 0; + return d; out_error: nfs_mark_for_revalidate(dir); - dput(parent); - return error; + d = ERR_PTR(error); + goto out; +} +EXPORT_SYMBOL_GPL(nfs_add_or_obtain); + +/* + * Code common to create, mkdir, and mknod. + */ +int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle, + struct nfs_fattr *fattr, + struct nfs4_label *label) +{ + struct dentry *d; + + d = nfs_add_or_obtain(dentry, fhandle, fattr, label); + if (IS_ERR(d)) + return PTR_ERR(d); + + /* Callers don't care */ + dput(d); + return 0; } EXPORT_SYMBOL_GPL(nfs_instantiate); diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 620306b1604d7..dcf01bdcc3e3b 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -487,6 +487,9 @@ extern const struct file_operations nfs_dir_operations; extern const struct dentry_operations nfs_dentry_operations; extern void nfs_force_lookup_revalidate(struct inode *dir); +extern struct dentry *nfs_add_or_obtain(struct dentry *dentry, + struct nfs_fh *fh, struct nfs_fattr *fattr, + struct nfs4_label *label); extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr, struct nfs4_label *label); extern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags); -- 2.25.1

1 5

[PATCH kernel-4.19 00/50] backport linux-4.19.192
by Yang Yingliang 29 May '21

29 May '21

Anirudh Rayabharam (3): rapidio: handle create_workqueue() failure net: stmicro: handle clk_prepare() failure during init video: hgafb: correctly handle card detect failure during probe Atul Gopinathan (1): cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom Christophe JAILLET (1): openrisc: Fix a memory leak Dan Carpenter (1): firmware: arm_scpi: Prevent the ternary sign expansion bug Daniel Wagner (1): nvmet: seset ns->file when open fails Du Cheng (1): ethernet: sun: niu: fix missing checks of niu_pci_eeprom_read() Greg Kroah-Hartman (18): Revert "ALSA: sb8: add a check for request_region" Revert "rapidio: fix a NULL pointer dereference when create_workqueue() fails" Revert "serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference" Revert "video: hgafb: fix potential NULL pointer dereference" Revert "net: stmicro: fix a missing check of clk_prepare" Revert "leds: lp5523: fix a missing check of return value of lp55xx_read" Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe" Revert "video: imsttfb: fix potential NULL pointer dereferences" Revert "ecryptfs: replace BUG_ON with error handling code" Revert "scsi: ufs: fix a missing check of devm_reset_control_get" Revert "gdrom: fix a memory leak bug" cdrom: gdrom: initialize global variable at init time Revert "media: rcar_drif: fix a memory disclosure" Revert "rtlwifi: fix a potential NULL pointer dereference" Revert "qlcnic: Avoid potential NULL pointer dereference" Revert "niu: fix missing checks of niu_pci_eeprom_read" net: rtlwifi: properly check for alloc_workqueue() failure Linux 4.19.192 Hans de Goede (1): platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios Hui Wang (1): ALSA: hda/realtek: reset eapd coeff to default value for alc287 Igor Matheus Andrade Torrente (1): video: hgafb: fix potential NULL pointer dereference Jan Beulich (1): xen-pciback: reconfigure also from backend watch handler Leon Romanovsky (1): RDMA/rxe: Clear all QP fields if creation failed Luiz Augusto von Dentz (1): Bluetooth: SMP: Fail if remote and local public keys are identical Maciej W. Rozycki (2): vgacon: Record video mode changes with VT_RESIZEX vt: Fix character height handling with VT_RESIZEX Maor Gottlieb (1): RDMA/mlx5: Recover from fatal event in dual port mode Mikulas Patocka (1): dm snapshot: fix crash with transient storage and zero chunk size Oleg Nesterov (1): ptrace: make ptrace() fail if the tracee changed its pid unexpectedly PeiSen Hou (1): ALSA: hda/realtek: Add some CLOVE SSIDs of ALC293 Phillip Potter (2): scsi: ufs: handle cleanup correctly on devm_reset_control_get error leds: lp5523: check return value of lp5xx_read and jump to cleanup code Ronnie Sahlberg (1): cifs: fix memory leak in smb2_copychunk_range Takashi Iwai (2): ALSA: line6: Fix racy initialization of LINE6 MIDI ALSA: usb-audio: Validate MS endpoint descriptors Takashi Sakamoto (3): ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro Tetsuo Handa (1): tty: vt: always invoke vc->vc_sw->con_resize callback Tom Seewald (1): qlcnic: Add null check after calling netdev_alloc_skb Zhen Lei (1): scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword() Zqiang (1): locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal Makefile | 2 +- arch/openrisc/kernel/setup.c | 2 + drivers/cdrom/gdrom.c | 13 ++++- drivers/firmware/arm_scpi.c | 4 +- drivers/hwmon/lm80.c | 11 +--- drivers/infiniband/hw/mlx5/main.c | 1 + drivers/infiniband/sw/rxe/rxe_qp.c | 7 +++ drivers/leds/leds-lp5523.c | 2 +- drivers/md/dm-snap.c | 1 + drivers/media/platform/rcar_drif.c | 1 - .../ethernet/qlogic/qlcnic/qlcnic_ethtool.c | 3 +- .../net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 8 +-- drivers/net/ethernet/sun/niu.c | 32 +++++++---- drivers/net/wireless/realtek/rtlwifi/base.c | 19 +++---- drivers/nvme/target/io-cmd-file.c | 8 ++- drivers/platform/x86/dell-smbios-wmi.c | 3 +- drivers/rapidio/rio_cm.c | 17 +++--- drivers/scsi/qla2xxx/qla_nx.c | 3 +- drivers/scsi/ufs/ufs-hisi.c | 15 +++-- drivers/tty/serial/mvebu-uart.c | 3 - drivers/tty/vt/vt.c | 2 +- drivers/tty/vt/vt_ioctl.c | 6 +- drivers/video/console/vgacon.c | 56 +++++++++++-------- drivers/video/fbdev/core/fbcon.c | 2 +- drivers/video/fbdev/hgafb.c | 21 ++++--- drivers/video/fbdev/imsttfb.c | 5 -- drivers/xen/xen-pciback/xenbus.c | 22 ++++++-- fs/cifs/smb2ops.c | 2 + fs/ecryptfs/crypto.c | 6 +- include/linux/console_struct.h | 1 + kernel/locking/mutex-debug.c | 4 +- kernel/locking/mutex-debug.h | 2 +- kernel/locking/mutex.c | 18 ++++-- kernel/locking/mutex.h | 4 +- kernel/ptrace.c | 18 +++++- net/bluetooth/smp.c | 9 +++ sound/firewire/Kconfig | 4 +- sound/firewire/bebob/bebob.c | 2 +- sound/firewire/dice/dice-alesis.c | 2 +- sound/firewire/dice/dice-tcelectronic.c | 4 +- sound/firewire/oxfw/oxfw.c | 1 - sound/isa/sb/sb8.c | 4 -- sound/pci/hda/patch_realtek.c | 20 ++++++- sound/usb/line6/driver.c | 4 ++ sound/usb/line6/pod.c | 5 -- sound/usb/line6/variax.c | 6 -- sound/usb/midi.c | 4 ++ 47 files changed, 236 insertions(+), 153 deletions(-) -- 2.25.1

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[PATCH kernel-4.19 1/5] Revert "mm: memcontrol: fix slub memory accounting"
by Yang Yingliang 29 May '21

29 May '21

hulk inclusion category: bugfix bugzilla: 51349 CVE: NA ------------------------------------------------- This patchset https://patchwork.kernel.org/project/linux-block/cover/20190826111627.7505-… will cause perfmance regression, so revert it and use another way to fix the warning introduced by fix CVE-2021-27365. Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- mm/slab_common.c | 4 ++-- mm/slub.c | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/mm/slab_common.c b/mm/slab_common.c index b8b0df81bece3..321a9abed5d9d 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1259,8 +1259,8 @@ void *kmalloc_order(size_t size, gfp_t flags, unsigned int order) page = alloc_pages(flags, order); if (likely(page)) { ret = page_address(page); - mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE, - PAGE_SIZE << order); + mod_node_page_state(page_pgdat(page), NR_SLAB_UNRECLAIMABLE, + 1 << order); } kmemleak_alloc(ret, size, 1, flags); kasan_kmalloc_large(ret, size, flags); diff --git a/mm/slub.c b/mm/slub.c index 12f23ceab1177..0d69d5b3ceefe 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3799,8 +3799,8 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node) page = alloc_pages_node(node, flags, order); if (page) { ptr = page_address(page); - mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE, - PAGE_SIZE << order); + mod_node_page_state(page_pgdat(page), NR_SLAB_UNRECLAIMABLE, + 1 << order); } kmalloc_large_node_hook(ptr, size, flags); @@ -3940,8 +3940,8 @@ void kfree(const void *x) BUG_ON(!PageCompound(page)); kfree_hook(object); - mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE, - -(PAGE_SIZE << order)); + mod_node_page_state(page_pgdat(page), NR_SLAB_UNRECLAIMABLE, + -(1 << order)); __free_pages(page, order); return; } -- 2.25.1

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完成任务，获得荣誉，openEuler 社区的这项比赛有点逆天！
by Marketing openEuler 27 May '21

27 May '21

先说比赛规则独立开发者参赛 *做题得分* *每周结算* 这是任务打榜赛不满足？来看一下*特性命题赛*？独立开发者组队参赛区域赛、半决赛、总决赛过五关斩六将谁可以独占鳌头？你将是*社区贡献者* *你的 ID* 会被铭刻在社区还有*“一”点奖金* [image: WechatIMG16.jpeg]

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[PATCH kernel-4.19] arm/ras: Report ARM processor information to userspace
by Yang Yingliang 27 May '21

27 May '21

From: Shenwei Luo <luoshengwei(a)huawei.com> kunpeng inclusion category: feature bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=45 CVE: NA The ARM processor error section includes several ARM processor error information, several ARM processor context information and several vendor specific error information structures. Report all of these information to userspace via perf i/f. Shengwei Luo: backport for openEuler 20.xx kernel. V2: report severity info to userspace V1: fix the error in the original patch. Ensure all info to be parsed correctly. Original-Author: Jason Tian <jason(a)os.amperecomputing.com> Signed-off-by: Gong Chen <chengong15(a)huawei.com> Signed-off-by: Shengwei Luo <luoshengwei(a)huawei.com> Cc: Chen Wei <chenwei68(a)huawei.com> Reviewed-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- arch/arm64/kernel/ras.c | 5 +++-- drivers/acpi/apei/ghes.c | 6 +++--- drivers/ras/ras.c | 40 ++++++++++++++++++++++++++++++++++-- include/acpi/ghes.h | 2 +- include/linux/ras.h | 4 ++-- include/ras/ras_event.h | 44 +++++++++++++++++++++++++++++++++++----- 6 files changed, 86 insertions(+), 15 deletions(-) diff --git a/arch/arm64/kernel/ras.c b/arch/arm64/kernel/ras.c index 0414289b0707c..181e609e1cd4c 100644 --- a/arch/arm64/kernel/ras.c +++ b/arch/arm64/kernel/ras.c @@ -118,13 +118,14 @@ void sea_notify_process(void) } } -void ghes_arm_process_error(struct ghes *ghes, struct cper_sec_proc_arm *err) +void ghes_arm_process_error(struct ghes *ghes, + struct cper_sec_proc_arm *err, int sec_sev) { int i; bool info_saved = false; struct cper_arm_err_info *err_info; - log_arm_hw_error(err); + log_arm_hw_error(err, sec_sev); if ((ghes->generic->notify.type != ACPI_HEST_NOTIFY_SEA) || (ghes->estatus->error_severity != CPER_SEV_RECOVERABLE)) diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index e2704619e7015..e807e8f74d1e0 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -465,9 +465,9 @@ static void ghes_handle_aer(struct acpi_hest_generic_data *gdata) } void __weak ghes_arm_process_error(struct ghes *ghes, - struct cper_sec_proc_arm *err) + struct cper_sec_proc_arm *err, int sec_sev) { - log_arm_hw_error(err); + log_arm_hw_error(err, sec_sev); } static void ghes_do_proc(struct ghes *ghes, @@ -510,7 +510,7 @@ static void ghes_do_proc(struct ghes *ghes, else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) { struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata); - ghes_arm_process_error(ghes, err); + ghes_arm_process_error(ghes, err, sec_sev); } else if (guid_equal(sec_type, &CPER_SEC_TS_CORE)) { blocking_notifier_call_chain(&ghes_ts_err_chain, 0, acpi_hest_get_payload(gdata)); diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c index 3f38907320dcc..9302ed7f42588 100644 --- a/drivers/ras/ras.c +++ b/drivers/ras/ras.c @@ -21,9 +21,45 @@ void log_non_standard_event(const uuid_le *sec_type, const uuid_le *fru_id, trace_non_standard_event(sec_type, fru_id, fru_text, sev, err, len); } -void log_arm_hw_error(struct cper_sec_proc_arm *err) +void log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev) { - trace_arm_event(err); + u32 pei_len; + u32 ctx_len = 0; + u32 vsei_len; + u8 *pei_err; + u8 *ctx_err; + u8 *ven_err_data; + struct cper_arm_err_info *err_info; + struct cper_arm_ctx_info *ctx_info; + int n, sz; + + pei_len = sizeof(struct cper_arm_err_info) * err->err_info_num; + pei_err = (u8 *)err + sizeof(struct cper_sec_proc_arm); + + err_info = (struct cper_arm_err_info *)(err + 1); + ctx_info = (struct cper_arm_ctx_info *)(err_info + err->err_info_num); + ctx_err = (u8 *)ctx_info; + for (n = 0; n < err->context_info_num; n++) { + sz = sizeof(struct cper_arm_ctx_info) + ctx_info->size; + ctx_info = (struct cper_arm_ctx_info *)((long)ctx_info + sz); + ctx_len += sz; + } + + vsei_len = err->section_length - (sizeof(struct cper_sec_proc_arm) + + pei_len + ctx_len); + if (vsei_len < 0) { + printk(FW_BUG + "section length: %d\n", err->section_length); + printk(FW_BUG + "section length is too small\n"); + pr_warn(FW_BUG + "firmware-generated error record is incorrect\n"); + vsei_len = 0; + } + ven_err_data = (u8 *)ctx_info; + + trace_arm_event(err, pei_err, pei_len, ctx_err, ctx_len, + ven_err_data, vsei_len, sev); } static int __init ras_init(void) diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h index 4c536a2638df7..9aaeaaa3d1a7f 100644 --- a/include/acpi/ghes.h +++ b/include/acpi/ghes.h @@ -124,7 +124,7 @@ int ghes_notify_sea(void); static inline int ghes_notify_sea(void) { return -ENOENT; } #endif extern void ghes_arm_process_error(struct ghes *ghes, - struct cper_sec_proc_arm *err); + struct cper_sec_proc_arm *err, int sec_sev); struct ghes_mem_err { int notify_type; diff --git a/include/linux/ras.h b/include/linux/ras.h index 7c3debb47c87a..3431b4a5fa42d 100644 --- a/include/linux/ras.h +++ b/include/linux/ras.h @@ -29,7 +29,7 @@ static inline int cec_add_elem(u64 pfn) { return -ENODEV; } void log_non_standard_event(const guid_t *sec_type, const guid_t *fru_id, const char *fru_text, const u8 sev, const u8 *err, const u32 len); -void log_arm_hw_error(struct cper_sec_proc_arm *err); +void log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev); #else static inline void log_non_standard_event(const guid_t *sec_type, @@ -37,7 +37,7 @@ log_non_standard_event(const guid_t *sec_type, const u8 sev, const u8 *err, const u32 len) { return; } static inline void -log_arm_hw_error(struct cper_sec_proc_arm *err) { return; } +log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev) { return; } #endif #endif /* __RAS_H__ */ diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h index a0794632fd01a..7c8cb123ba32d 100644 --- a/include/ras/ras_event.h +++ b/include/ras/ras_event.h @@ -168,11 +168,23 @@ TRACE_EVENT(mc_event, * This event is generated when hardware detects an ARM processor error * has occurred. UEFI 2.6 spec section N.2.4.4. */ +#define APEIL "ARM Processor Err Info data len" +#define APEID "ARM Processor Err Info raw data" +#define APECIL "ARM Processor Err Context Info data len" +#define APECID "ARM Processor Err Context Info raw data" +#define VSEIL "Vendor Specific Err Info data len" +#define VSEID "Vendor Specific Err Info raw data" TRACE_EVENT(arm_event, - TP_PROTO(const struct cper_sec_proc_arm *proc), + TP_PROTO(const struct cper_sec_proc_arm *proc, const u8 *pei_err, + const u32 pei_len, + const u8 *ctx_err, + const u32 ctx_len, + const u8 *oem, + const u32 oem_len, + u8 sev), - TP_ARGS(proc), + TP_ARGS(proc, pei_err, pei_len, ctx_err, ctx_len, oem, oem_len, sev), TP_STRUCT__entry( __field(u64, mpidr) @@ -180,6 +192,13 @@ TRACE_EVENT(arm_event, __field(u32, running_state) __field(u32, psci_state) __field(u8, affinity) + __field(u32, pei_len) + __dynamic_array(u8, buf, pei_len) + __field(u32, ctx_len) + __dynamic_array(u8, buf1, ctx_len) + __field(u32, oem_len) + __dynamic_array(u8, buf2, oem_len) + __field(u8, sev) ), TP_fast_assign( @@ -199,12 +218,27 @@ TRACE_EVENT(arm_event, __entry->running_state = ~0; __entry->psci_state = ~0; } + __entry->pei_len = pei_len; + memcpy(__get_dynamic_array(buf), pei_err, pei_len); + __entry->ctx_len = ctx_len; + memcpy(__get_dynamic_array(buf1), ctx_err, ctx_len); + __entry->oem_len = oem_len; + memcpy(__get_dynamic_array(buf2), oem, oem_len); + __entry->sev = sev; ), - TP_printk("affinity level: %d; MPIDR: %016llx; MIDR: %016llx; " - "running state: %d; PSCI state: %d", + TP_printk("error: %d; affinity level: %d; MPIDR: %016llx; MIDR: %016llx; " + "running state: %d; PSCI state: %d; " + "%s: %d; %s: %s; %s: %d; %s: %s; %s: %d; %s: %s", + __entry->sev, __entry->affinity, __entry->mpidr, __entry->midr, - __entry->running_state, __entry->psci_state) + __entry->running_state, __entry->psci_state, + APEIL, __entry->pei_len, APEID, + __print_hex(__get_dynamic_array(buf), __entry->pei_len), + APECIL, __entry->ctx_len, APECID, + __print_hex(__get_dynamic_array(buf1), __entry->ctx_len), + VSEIL, __entry->oem_len, VSEID, + __print_hex(__get_dynamic_array(buf2), __entry->oem_len)) ); /* -- 2.25.1

1 0

[PATCH openEuler-1.0-LTS] io_uring: truncate lengths larger than MAX_RW_COUNT on provide buffers
by Yang Yingliang 27 May '21

27 May '21

From: Thadeu Lima de Souza Cascardo <cascardo(a)canonical.com> mainline inclusion from mainline-v5.13-rc1 commit d1f82808877bb10d3deee7cf3374a4eb3fb582db category: bugfix bugzilla: NA CVE: CVE-2021-3491 -------------------------------- Read and write operations are capped to MAX_RW_COUNT. Some read ops rely on that limit, and that is not guaranteed by the IORING_OP_PROVIDE_BUFFERS. Truncate those lengths when doing io_add_buffers, so buffer addresses still use the uncapped length. Also, take the chance and change struct io_buffer len member to __u32, so it matches struct io_provide_buffer len member. This fixes CVE-2021-3491, also reported as ZDI-CAN-13546. Fixes: ddf0322db79c ("io_uring: add IORING_OP_PROVIDE_BUFFERS") Reported-by: Billy Jheng Bing-Jhong (@st424204) Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)canonical.com> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/io_uring.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 02ebfc46228a9..f661231cdfad6 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -216,7 +216,7 @@ struct fixed_file_data { struct io_buffer { struct list_head list; __u64 addr; - __s32 len; + __u32 len; __u16 bid; }; @@ -3523,7 +3523,7 @@ static int io_add_buffers(struct io_provide_buf *pbuf, struct io_buffer **head) break; buf->addr = addr; - buf->len = pbuf->len; + buf->len = min_t(__u32, pbuf->len, MAX_RW_COUNT); buf->bid = bid; addr += pbuf->len; bid++; -- 2.25.1

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【Meeting Notice】openEuler kernel 技术分享第六期 & 双周例会 Time: 2021-05-28 14:00-18:00
by Meeting Book 27 May '21

27 May '21

1 0

【Meeting Notice】openEuler kernel 技术分享第六期 & 双周例会 Time: 2021-05-28 14:00-18:00
by Meeting Book 27 May '21

27 May '21

2 3

Re: kernel@openeuler.org post from justcaca@126.com requires approval
by Xie XiuQi 26 May '21

26 May '21

Hi, Thanks for your patch. 请先注册一下 kernel 邮件列表，不然邮件列表服务器会拦截非相关的邮件。可以从下面链接注册，并确认。需要确认后，才注册成功。 https://mailweb.openeuler.org/postorius/lists/kernel.openeuler.org/ 另外，你明天有时间吗，明天下午 kernel sig 的例会，可以讲一下这个补丁场景和解决的问题吗？谢谢 On 2021/5/26 15:58, kernel-owner(a)openeuler.org wrote: > As list administrator, your authorization is requested for the > following mailing list posting: > > List: kernel(a)openeuler.org > From: justcaca(a)126.com > Subject: [PATCH] 4.19: PTP_KVM support for arm/arm64 > > The message is being held because: > > The message is not from a list member > > At your convenience, visit your dashboard to approve or deny the > request. >

2 2

[PATCH openEuler-1.0-LTS] fuse: update attr_version counter on fuse_notify_inval_inode()
by Yang Yingliang 26 May '21

26 May '21

From: Miklos Szeredi <mszeredi(a)redhat.com> mainline inclusion from mainline-v5.8-rc1 commit 5ddd9ced9aef6cfa76af27d384c17c9e2d610ce8 category: bugfix bugzilla: 37636 CVE: NA ------------------------------------------------- A GETATTR request can race with FUSE_NOTIFY_INVAL_INODE, resulting in the attribute cache being updated with stale information after the invalidation. Fix this by bumping the attribute version in fuse_reverse_inval_inode(). Reported-by: Krzysztof Rusek <rusek(a)9livesdata.com> Signed-off-by: Miklos Szeredi <mszeredi(a)redhat.com> Conflict: fs/fuse/inode.c a. commit f15ecfef058d ("fuse: Introduce fi->lock to protect write related fields") is not backported, 'fi->lock' do not exist. b. commit 4510d86fbbb3 ("fuse: Convert fc->attr_version into atomic64_t") is not backported, 'fc->lock' is needed to read 'fc->attr_version'. Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/fuse/inode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 821597c618843..e245e0d405046 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -334,6 +334,8 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid, int fuse_reverse_inval_inode(struct super_block *sb, u64 nodeid, loff_t offset, loff_t len) { + struct fuse_conn *fc = get_fuse_conn_super(sb); + struct fuse_inode *fi; struct inode *inode; pgoff_t pg_start; pgoff_t pg_end; @@ -342,6 +344,11 @@ int fuse_reverse_inval_inode(struct super_block *sb, u64 nodeid, if (!inode) return -ENOENT; + fi = get_fuse_inode(inode); + spin_lock(&fc->lock); + fi->attr_version = ++fc->attr_version; + spin_unlock(&fc->lock); + fuse_invalidate_attr(inode); forget_all_cached_acls(inode); if (offset >= 0) { -- 2.25.1

1 0

[PATCH kernel-4.19] fuse: update attr_version counter on fuse_notify_inval_inode()
by Yang Yingliang 26 May '21

26 May '21

From: Miklos Szeredi <mszeredi(a)redhat.com> mainline inclusion from mainline-v5.8-rc1 commit 5ddd9ced9aef6cfa76af27d384c17c9e2d610ce8 category: bugfix bugzilla: 37636 CVE: NA ------------------------------------------------- A GETATTR request can race with FUSE_NOTIFY_INVAL_INODE, resulting in the attribute cache being updated with stale information after the invalidation. Fix this by bumping the attribute version in fuse_reverse_inval_inode(). Reported-by: Krzysztof Rusek <rusek(a)9livesdata.com> Signed-off-by: Miklos Szeredi <mszeredi(a)redhat.com> Conflict: fs/fuse/inode.c a. commit f15ecfef058d ("fuse: Introduce fi->lock to protect write related fields") is not backported, 'fi->lock' do not exist. b. commit 4510d86fbbb3 ("fuse: Convert fc->attr_version into atomic64_t") is not backported, 'fc->lock' is needed to read 'fc->attr_version'. Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/fuse/inode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 821597c618843..e245e0d405046 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -334,6 +334,8 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid, int fuse_reverse_inval_inode(struct super_block *sb, u64 nodeid, loff_t offset, loff_t len) { + struct fuse_conn *fc = get_fuse_conn_super(sb); + struct fuse_inode *fi; struct inode *inode; pgoff_t pg_start; pgoff_t pg_end; @@ -342,6 +344,11 @@ int fuse_reverse_inval_inode(struct super_block *sb, u64 nodeid, if (!inode) return -ENOENT; + fi = get_fuse_inode(inode); + spin_lock(&fc->lock); + fi->attr_version = ++fc->attr_version; + spin_unlock(&fc->lock); + fuse_invalidate_attr(inode); forget_all_cached_acls(inode); if (offset >= 0) { -- 2.25.1

1 0

[PATCH kernel-4.19] alinux: random: speed up the initialization of module
by Yang Yingliang 26 May '21

26 May '21

From: Xingjun Liu <xingjun.lxj(a)alibaba-inc.com> anolis inclusion from anolis_master commit 7afda44c8a9e043f8f16dcc57dd8ef615522e2c8 category: performance bugzilla: NA CVE: NA --------------------------- alinux: random: speed up the initialization of module During the module initialization phase, entropy will be added to entropy pool for every interrupt, the change should speed up initialization of the random module. Before optimization: [ 22.180236] random: crng init done After optimization: [ 1.474832] random: crng init done Signed-off-by: Xingjun Liu <xingjun.lxj(a)alibaba-inc.com> Reviewed-by: Liu Jiang <gerry(a)linux.alibaba.com> Reviewed-by: Caspar Zhang <caspar(a)linux.alibaba.com> Reviewed-by: Jia Zhang <zhang.jia(a)linux.alibaba.com> Reviewed-by: Yang Shi <yang.shi(a)linux.alibaba.com> Reviewed-by: Liu Bo <bo.liu(a)linux.alibaba.com> Signed-off-by: Chen Jialong <chenjialong(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> Reviewed-by: Ziyuan Hu <huziyuan(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/char/random.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/random.c b/drivers/char/random.c index 347d9e1f65798..72d47ac06af97 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1274,7 +1274,8 @@ void add_interrupt_randomness(int irq, int irq_flags) } if ((fast_pool->count < 64) && - !time_after(now, fast_pool->last + HZ)) + !time_after(now, fast_pool->last + HZ) && + crng_ready()) return; r = &input_pool; -- 2.25.1

1 0

[PATCH openEuler-1.0-LTS 1/4] net/nfc: fix use-after-free llcp_sock_bind/connect
by Yang Yingliang 26 May '21

26 May '21

From: Or Cohen <orcohen(a)paloaltonetworks.com> stable inclusion from linux-4.19.191 commit 48fba458fe54cc2a980a05c13e6c19b8b2cfb610 CVE: CVE-2021-23134 -------------------------------- commit c61760e6940dd4039a7f5e84a6afc9cdbf4d82b6 upstream. Commits 8a4cd82d ("nfc: fix refcount leak in llcp_sock_connect()") and c33b1cc62 ("nfc: fix refcount leak in llcp_sock_bind()") fixed a refcount leak bug in bind/connect but introduced a use-after-free if the same local is assigned to 2 different sockets. This can be triggered by the following simple program: int sock1 = socket( AF_NFC, SOCK_STREAM, NFC_SOCKPROTO_LLCP ); int sock2 = socket( AF_NFC, SOCK_STREAM, NFC_SOCKPROTO_LLCP ); memset( &addr, 0, sizeof(struct sockaddr_nfc_llcp) ); addr.sa_family = AF_NFC; addr.nfc_protocol = NFC_PROTO_NFC_DEP; bind( sock1, (struct sockaddr*) &addr, sizeof(struct sockaddr_nfc_llcp) ) bind( sock2, (struct sockaddr*) &addr, sizeof(struct sockaddr_nfc_llcp) ) close(sock1); close(sock2); Fix this by assigning NULL to llcp_sock->local after calling nfc_llcp_local_put. This addresses CVE-2021-23134. Reported-by: Or Cohen <orcohen(a)paloaltonetworks.com> Reported-by: Nadav Markus <nmarkus(a)paloaltonetworks.com> Fixes: c33b1cc62 ("nfc: fix refcount leak in llcp_sock_bind()") Signed-off-by: Or Cohen <orcohen(a)paloaltonetworks.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> Reviewed-by: Yue Haibing <yuehaibing(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- net/nfc/llcp_sock.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index bc269e83e1e55..59de4f54dd18c 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -121,12 +121,14 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) GFP_KERNEL); if (!llcp_sock->service_name) { nfc_llcp_local_put(llcp_sock->local); + llcp_sock->local = NULL; ret = -ENOMEM; goto put_dev; } llcp_sock->ssap = nfc_llcp_get_sdp_ssap(local, llcp_sock); if (llcp_sock->ssap == LLCP_SAP_MAX) { nfc_llcp_local_put(llcp_sock->local); + llcp_sock->local = NULL; kfree(llcp_sock->service_name); llcp_sock->service_name = NULL; ret = -EADDRINUSE; @@ -721,6 +723,7 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr, llcp_sock->ssap = nfc_llcp_get_local_ssap(local); if (llcp_sock->ssap == LLCP_SAP_MAX) { nfc_llcp_local_put(llcp_sock->local); + llcp_sock->local = NULL; ret = -ENOMEM; goto put_dev; } @@ -759,6 +762,7 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr, sock_unlink: nfc_llcp_put_ssap(local, llcp_sock->ssap); nfc_llcp_local_put(llcp_sock->local); + llcp_sock->local = NULL; nfc_llcp_sock_unlink(&local->connecting_sockets, sk); kfree(llcp_sock->service_name); -- 2.25.1

1 3

[PATCH kernel-4.19 000/418] backport linux-4.19.191
by Yang Yingliang 26 May '21

26 May '21

Adrian Hunter (1): mmc: sdhci-pci: Fix initialization of some SD cards for Intel BYT-based controllers Alexander Aring (1): fs: dlm: fix debugfs dump Alexander Lobakin (1): mtd: spinand: core: add missing MODULE_DEVICE_TABLE() Alexander Shishkin (2): intel_th: pci: Add Rocket Lake CPU support intel_th: pci: Add Alder Lake-M support Alexandru Elisei (1): KVM: arm64: Initialize VCPU mdcr_el2 before loading it Alexey Kardashevskiy (1): powerpc/iommu: Annotate nested lock for lockdep Andrew Scull (1): bug: Remove redundant condition check in report_bug Andy Shevchenko (5): usb: gadget: pch_udc: Revert d3cb25a12138 completely usb: gadget: pch_udc: Replace cpu_to_le32() by lower_32_bits() usb: gadget: pch_udc: Check if driver is present before calling ->setup() usb: gadget: pch_udc: Check for DMA mapping error scripts: switch explicitly to Python 3 Anirudh Rayabharam (1): usb: gadget: dummy_hcd: fix gpf in gadget_setup Archie Pusaka (3): Bluetooth: verify AMP hci_chan before amp_destroy Bluetooth: Set CONF_NOT_COMPLETE as l2cap_chan default Bluetooth: check for zapped sk before connecting Ard Biesheuvel (2): ARM: 9056/1: decompressor: fix BSS size calculation for LLVM ld.lld crypto: api - check for ERR pointers in crypto_destroy_tfm() Arnaldo Carvalho de Melo (1): perf symbols: Fix dso__fprintf_symbols_by_name() to return the number of printed chars Arnd Bergmann (9): amdgpu: avoid incorrect %hu format string security: commoncap: fix -Wstringop-overread warning irqchip/gic-v3: Fix OF_BAD_ADDR error handling smp: Fix smp_call_function_single_async prototype x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes kgdb: fix gcc-11 warning on indentation usb: sl811-hcd: improve misleading indentation isdn: capi: fix mismatched prototypes PCI: thunder: Fix compile testing Artur Petrosyan (3): usb: dwc2: Fix session request interrupt handler usb: dwc2: Fix host mode hibernation exit with remote wakeup flow. usb: dwc2: Fix hibernation between host and device modes. Arun Easi (1): scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() Athira Rajeev (1): powerpc/perf: Fix PMU constraint check for EBB events Avri Altman (2): mmc: block: Update ext_csd.cache_ctrl if it was written mmc: block: Issue a cache flush only when it's enabled Axel Rasmussen (1): userfaultfd: release page in error path to avoid BUG_ON Badhri Jagan Sridharan (1): usb: typec: tcpci: Check ROLE_CONTROL while interpreting CC_STATUS Bart Van Assche (3): scsi: qla2xxx: Always check the return value of qla24xx_get_isp_stats() scsi: libfc: Fix a format specifier blk-mq: Swap two calls in blk_mq_exit_queue() Bence Csókás (1): i2c: Add I2C_AQ_NO_REP_START adapter quirk Benjamin Block (1): dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails Bill Wendling (1): arm64/vdso: Discard .note.gnu.property sections in vDSO Bjorn Andersson (2): soc: qcom: mdt_loader: Validate that p_filesz < p_memsz soc: qcom: mdt_loader: Detect truncated read of segments Bodo Stroesser (1): scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found Brian King (1): scsi: ibmvfc: Fix invalid state machine BUG_ON() Chaitanya Kulkarni (1): scsi: target: pscsi: Fix warning in pscsi_complete_cmd() Chen Huang (1): powerpc: Fix HAVE_HARDLOCKUP_DETECTOR_ARCH build configuration Chen Hui (1): clk: qcom: a53-pll: Add missing MODULE_DEVICE_TABLE Chen Jun (1): posix-timers: Preserve return value in clock_adjtime32() Christoph Hellwig (11): modules: mark ref_module static modules: mark find_symbol static modules: mark each_symbol_section static modules: unexport __module_text_address modules: unexport __module_address modules: rename the licence field in struct symsearch to license modules: return licensing information from find_symbol modules: inherit TAINT_PROPRIETARY_MODULE md: split mddev_find md: factor out a mddev_find_locked helper from mddev_find nvme: do not try to reconfigure APST when the controller is not live Christophe JAILLET (3): usb: fotg210-hcd: Fix an error message ACPI: scan: Fix a memory leak in an error handling path xhci: Do not use GFP_KERNEL in (potentially) atomic context Christophe Leroy (1): powerpc/52xx: Fix an invalid ASM expression ('addi' used instead of 'add') Chunfeng Yun (3): arm64: dts: mt8173: fix property typo of 'phys' in dsi node usb: xhci-mtk: support quirk to disable usb2 lpm usb: core: hub: fix race condition about TRSMRCY of resume Claudio Imbrenda (2): KVM: s390: split kvm_s390_logical_to_effective KVM: s390: split kvm_s390_real_to_abs Colin Ian King (15): clk: socfpga: arria10: Fix memory leak of socfpga_clk on error return drm/radeon: fix copy of uninitialized variable back to userspace memory: gpmc: fix out of bounds read and dereference on gpmc_cs[] staging: rtl8192u: Fix potential infinite loop usb: gadget: r8a66597: Add missing null check on return from platform_get_resource media: vivid: fix assignment of dev->fbuf_out_flags media: m88rs6000t: avoid potential out-of-bounds reads on arrays clk: uniphier: Fix potential infinite loop liquidio: Fix unintented sign extension of a left shift of a u16 mt7601u: fix always true expression net: thunderx: Fix unintentional sign extension issue ALSA: usb: midi: don't return -ENOMEM when usb_urb_ep_type_check fails net: davinci_emac: Fix incorrect masking of tx and rx error channel f2fs: fix a redundant call to f2fs_balance_fs if an error occurs iio: tsl2583: Fix division by a zero lux_val Cong Wang (1): smc: disallow TCP_ULP in smc_setsockopt() Dan Carpenter (9): ipw2x00: potential buffer overflow in libipw_wx_set_encodeext() ovl: fix missing revert_creds() on error path mtd: rawnand: fsmc: Fix error code in fsmc_nand_probe() soc: aspeed: fix a ternary sign expansion bug HSI: core: fix resource leaks in hsi_add_client_from_dt() nfc: pn533: prevent potential memory corruption drm/i915/gvt: Fix error code in intel_gvt_init_device() bnxt_en: fix ternary sign extension bug in bnxt_show_temp() kfifo: fix ternary sign extension bugs Daniel Niv (1): media: media/saa7164: fix saa7164_encoder_register() memory leak bugs David Ward (2): ASoC: rt286: Generalize support for ALC3263 codec ASoC: rt286: Make RT286_SET_GPIO_* readable and writable Davide Caratti (1): openvswitch: fix stack OOB read while fragmenting IPv4 packets Dean Anderson (1): usb: gadget/function/f_fs string table fix for multiple languages Dinghao Liu (1): iio: proximity: pulsedlight: Fix rumtime PM imbalance on error Dmitry Baryshkov (1): PCI: Release OF node in pci_scan_device()'s error path Dmitry Osipenko (1): iio: gyro: mpu3050: Fix reported temperature value DooHyun Hwang (1): mmc: core: Do a power cycle when the CMD11 fails Eckhart Mohr (1): ALSA: hda/realtek: Add quirk for Intel Clevo PCx0Dx Emmanuel Grumbach (1): mac80211: clear the beacon's CRC after channel switch Eric Dumazet (6): ip6_vti: proper dev_{hold|put} in ndo_[un]init methods netfilter: nftables: avoid overflows in nft_hash_buckets() ip6_gre: proper dev_{hold|put} in ndo_[un]init methods sit: proper dev_{hold|put} in ndo_[un]init methods ip6_tunnel: sit: proper dev_{hold|put} in ndo_[un]init methods ipv6: remove extra dev_hold() for fallback tunnels Erwan Le Ray (2): serial: stm32: fix incorrect characters on console serial: stm32: fix tx_empty condition Ewan D. Milne (1): scsi: scsi_dh_alua: Remove check for ASC 24h in alua_rtpg() Fabian Vogt (6): fotg210-udc: Fix DMA on EP0 for length > max packet size fotg210-udc: Fix EP0 IN requests bigger than two packets fotg210-udc: Remove a dubious condition leading to fotg210_done fotg210-udc: Mask GRP2 interrupts we don't handle fotg210-udc: Don't DMA more than the buffer can take fotg210-udc: Complete OUT requests on short packets Fabrice Gasnier (1): mfd: stm32-timers: Avoid clearing auto reload register Feilong Lin (1): ACPI / hotplug / PCI: Fix reference count leak in enable_slot() Felix Fietkau (1): net: ethernet: mtk_eth_soc: fix RX VLAN offload Felix Kuehling (1): drm/amdkfd: fix build error with AMD_IOMMU_V2=m Fengnan Chang (1): ext4: fix error code in ext4_commit_super Ferry Toth (1): usb: dwc3: pci: Enable usb2-gadget-lpm-disable for Intel Merrifield Filipe Manana (2): btrfs: fix metadata extent leak after failure to create subvolume btrfs: fix race when picking most recent mod log operation for an old root Finn Behrens (1): tweewide: Fix most Shebang lines Gao Xiang (1): erofs: add unsupported inode i_format check Geert Uytterhoeven (1): phy: marvell: ARMADA375_USBCLUSTER_PHY should not default to y, unconditionally Giovanni Cabiddu (1): crypto: qat - fix error path in adf_isr_resource_alloc() Greg Kroah-Hartman (2): kobject_uevent: remove warning in init_uevent_argv() Linux 4.19.191 Guchun Chen (1): drm/amdgpu: fix NULL pointer dereference Guochun Mao (1): ubifs: Only check replay with inode type to judge if inode linked Gustavo A. R. Silva (4): sctp: Fix out-of-bounds warning in sctp_process_asconf_param() ethtool: ioctl: Fix out-of-bounds warning in store_link_ksettings_for_user() wl3501_cs: Fix out-of-bounds warnings in wl3501_send_pkt wl3501_cs: Fix out-of-bounds warnings in wl3501_mgmt_join Hannes Reinecke (1): nvme: retrigger ANA log update if group descriptor isn't found Hans Verkuil (3): media: gspca/sq905.c: fix uninitialized variable media: vivid: update EDID media: gscpa/stv06xx: fix memory leak Hans de Goede (7): extcon: arizona: Fix some issues when HPDET IRQ fires after the jack has been unplugged misc: lis3lv02d: Fix false-positive WARN on various HP models ASoC: Intel: bytcr_rt5640: Enable jack-detect support on Asus T100TAF ASoC: Intel: bytcr_rt5640: Add quirk for the Chuwi Hi8 tablet Input: elants_i2c - do not bind to i2c-hid compatible ACPI instantiated devices Input: silead - add workaround for x86 BIOS-es which bring the chip up in a stuck state gpiolib: acpi: Add quirk to ignore EC wakeups on Dell Venue 10 Pro 5055 Harald Freudenberger (1): s390/archrandom: add parameter check for s390_arch_random_generate He Ying (1): firmware: qcom-scm: Fix QCOM_SCM configuration Heiko Carstens (1): KVM: s390: fix guarded storage control register handling Heinz Mauelshagen (1): dm raid: fix inconclusive reshape layout on fast raid4/5/6 table reload sequences Hemant Kumar (1): usb: gadget: Fix double free of device descriptor pointers Heming Zhao (1): md-cluster: fix use-after-free issue when removing rdev Hoang Le (1): tipc: convert dest node's address to network order Hui Wang (1): ALSA: hda: generic: change the DAC ctl name for LO+SPK or LO+HP Ido Schimmel (1): mlxsw: spectrum_mr: Update egress RIF list before route's action Ilya Lipnitskiy (3): MIPS: pci-mt7620: fix PLL lock check MIPS: pci-rt2880: fix slot 0 configuration MIPS: pci-legacy: stop using of_pci_range_to_resource Ingo Molnar (1): x86/platform/uv: Fix !KEXEC build failure James Smart (4): scsi: lpfc: Fix incorrect dbde assignment when building target abts wqe scsi: lpfc: Fix pt2pt connection does not recover after LOGO scsi: lpfc: Fix crash when a REG_RPI mailbox fails triggering a LOGO response scsi: lpfc: Remove unsupported mbox PORT_CAPABILITIES logic Jan Glauber (1): md: Fix missing unused status line of /proc/mdstat Jane Chu (1): mm/memory-failure: unnecessary amount of unmapping Jason Gunthorpe (1): vfio/mdev: Do not allow a mdev_type to have a NULL parent pointer Jeff Layton (1): ceph: fix fscache invalidation Jeffrey Mitchell (1): ecryptfs: fix kernel panic with null dev_name Jerome Forissier (1): tee: optee: do not check memref size on return from Secure World Jia Zhou (1): ALSA: core: remove redundant spin_lock pair in snd_card_disconnect Jia-Ju Bai (2): rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data() kernel: kexec_file: fix error return code of kexec_calculate_store_digests() Joe Thornber (2): dm persistent data: packed struct should have an aligned() attribute too dm space map common: fix division bug in sm_ll_find_free_block() Johan Hovold (4): staging: greybus: uart: fix unprivileged TIOCCSERIAL USB: cdc-acm: fix unprivileged TIOCCSERIAL tty: actually undefine superseded ASYNC flags tty: fix return value for unsupported ioctls Johannes Berg (3): cfg80211: scan: drop entry from hidden_list on overflow mac80211: bail out if cipher schemes are invalid um: Mark all kernel symbols as local John Millikin (1): x86/build: Propagate $(CLANG_FLAGS) to $(REALMODE_FLAGS) Jonathan Cameron (1): iio:accel:adis16201: Fix wrong axis assignment that prevents loading Jonathan McDowell (1): net: stmmac: Set FIFO sizes for ipq806x Jonathon Reinhart (2): net: Only allow init netns to set default tcp cong to a restricted algo netfilter: conntrack: Make global sysctls readonly in non-init netns Jordan Niethe (1): powerpc/64s: Fix pte update for kernel memory on radix Josef Bacik (1): btrfs: convert logic BUG_ON()'s in replace_path to ASSERT()'s Josh Poimboeuf (1): pinctrl: ingenic: Improve unreachable code generation Jouni Roivas (1): hfsplus: prevent corruption in shrinking truncate Julian Braha (1): media: drivers: media: pci: sta2x11: fix Kconfig dependency on GPIOLIB Kai Stuhlemmer (ebee Engineering) (1): mtd: rawnand: atmel: Update ecc_stats.corrected counter Kai-Heng Feng (1): drm/radeon/dpm: Disable sclk switching on Oland when two 4K 60Hz monitors are connected Kaixu Xia (1): cxgb4: Fix the -Wmisleading-indentation warning Kees Cook (2): drm/radeon: Fix off-by-one power_state index heap overwrite drm/radeon: Avoid power table parsing memory leaks Krzysztof Kozlowski (7): ARM: dts: exynos: correct fuel gauge interrupt trigger level on Midas family ARM: dts: exynos: correct MUIC interrupt trigger level on Midas family ARM: dts: exynos: correct PMIC interrupt trigger level on Midas family ARM: dts: exynos: correct PMIC interrupt trigger level on Odroid X/U3 family ARM: dts: exynos: correct PMIC interrupt trigger level on SMDK5250 ARM: dts: exynos: correct PMIC interrupt trigger level on Snow pinctrl: samsung: use 'int' for register masks in Exynos Kunihiko Hayashi (2): ARM: dts: uniphier: Change phy-mode to RGMII-ID to enable delay pins for RTL8211E arm64: dts: uniphier: Change phy-mode to RGMII-ID to enable delay pins for RTL8211E Linus Torvalds (1): Fix misc new gcc warnings Lukasz Luba (1): thermal/core/fair share: Lock the thermal zone while looping over instances Lv Yunlong (10): ALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer ALSA: sb: Fix two use after free in snd_sb_qsound_build mtd: rawnand: gpmi: Fix a double free in gpmi_nand_init crypto: qat - Fix a double free in adf_create_ring drivers/block/null_blk/main: Fix a double free in null_init. mwl8k: Fix a double Free in mwl8k_probe_hw net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res net:nfc:digital: Fix a double free in digital_tg_recv_dep_req ethernet:enic: Fix a use after free bug in enic_hard_start_xmit Maciej W. Rozycki (5): FDDI: defxx: Bail out gracefully with unassigned PCI resource for CSR FDDI: defxx: Make MMIO the configuration default except for EISA MIPS: Reinstate platform `__div64_32' handler MIPS: Avoid DIVU in `__div64_32' is result would be zero MIPS: Avoid handcoded DIVU in `__div64_32' altogether Maciej Żenczykowski (1): net: fix nla_strcmp to handle more then one trailing null character Magnus Karlsson (1): xsk: Simplify detection of empty and full rings Mahesh Salgaonkar (1): powerpc/eeh: Fix EEH handling for hugepages in ioremap space. Manivannan Sadhasivam (3): mtd: Handle possible -EPROBE_DEFER from parse_mtd_partitions() mtd: rawnand: qcom: Return actual error code instead of -ENODEV ARM: 9075/1: kernel: Fix interrupted SMC calls Marc Zyngier (1): ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure Marcel Hamer (1): usb: dwc3: omap: improve extcon initialization Marek Behún (3): arm64: dts: marvell: armada-37xx: add syscon compatible to NB clk node cpufreq: armada-37xx: Fix setting TBG parent for load levels clk: mvebu: armada-37xx-periph: remove .set_parent method for CPU PM clock Marek Vasut (1): rsi: Use resume_noirq for SDIO Marijn Suijten (1): drm/msm/mdp5: Configure PP_SYNC_HEIGHT to double the vtotal Mark Langsdorf (2): ACPI: custom_method: fix potential use-after-free issue ACPI: custom_method: fix a possible memory leak Masami Hiramatsu (1): x86/kprobes: Fix to check non boostable prefixes correctly Mathias Nyman (2): xhci: check control context is valid before dereferencing it. xhci: fix potential array out of bounds with several interrupters Matthias Schiffer (1): power: supply: bq27xxx: fix power_avg for newer ICs Maxim Mikityanskiy (1): HID: plantronics: Workaround for double volume key presses Maximilian Luz (1): usb: xhci: Increase timeout for HC halt Meng Li (1): regmap: set debugfs_name to NULL after it is freed Miaohe Lin (3): khugepaged: fix wrong result value for trace_mm_collapse_huge_page_isolate() mm/hugeltb: handle the error case in hugetlb_fix_reserve_counts() ksm: fix potential missing rmap_item for stable_node Michael Ellerman (3): powerpc/pseries: Stop calling printk in rtas_stop_self() powerpc/64s: Fix crashes when toggling stf barrier powerpc/64s: Fix crashes when toggling entry flush barrier Michael Kelley (1): Drivers: hv: vmbus: Increase wait time for VMbus unload Michael Walle (1): mtd: require write permissions for locking and badblock ioctls Mihai Moldovan (1): kconfig: nconf: stop endless search loops Miklos Szeredi (1): cuse: prevent clone Muhammad Usama Anjum (1): media: em28xx: fix memory leak Nathan Chancellor (5): ACPI: CPPC: Replace cppc_attr with kobj_attribute x86/events/amd/iommu: Fix sysfs type mismatch powerpc/prom: Mark identical_pvr_fixup as __init scripts/recordmcount.pl: Fix RISC-V regex for clang riscv: Workaround mcount name prior to clang-13 Nikola Livic (1): pNFS/flexfiles: fix incorrect size check in decode_nfs_fh() Nikolay Aleksandrov (1): net: bridge: when suppression is enabled exclude RARP packets Nobuhiro Iwamatsu (1): rtc: ds1307: Fix wday settings for rx8130 Odin Ugedal (1): sched/fair: Fix unfairness caused by missing load decay Olga Kornievskaia (1): NFSv4.2 fix handling of sr_eof in SEEK's reply Oliver Neukum (1): cdc-wdm: untangle a circular dependency between callback and softint Or Cohen (1): net/nfc: fix use-after-free llcp_sock_bind/connect Otavio Pontes (1): x86/microcode: Check for offline CPUs before requesting new microcode Pablo Neira Ayuso (2): netfilter: xt_SECMARK: add new revision to fix structure layout netfilter: nfnetlink_osf: Fix a missing skb_header_pointer() NULL check Pali Rohár (6): cpufreq: armada-37xx: Fix the AVS value for load L1 clk: mvebu: armada-37xx-periph: Fix switching CPU freq from 250 Mhz to 1 GHz clk: mvebu: armada-37xx-periph: Fix workaround for switching from L1 to L0 cpufreq: armada-37xx: Fix driver cleanup when registration failed cpufreq: armada-37xx: Fix determining base CPU frequency PCI: iproc: Fix return value of iproc_msi_irq_domain_alloc() Pan Bian (1): bus: qcom: Put child node before return Paul Aurich (1): cifs: Return correct error code from smb2_get_enc_key Paul Clements (1): md/raid1: properly indicate failure when ending a failed write request Pavel Machek (1): intel_th: Consistency and off-by-one fix Pavel Skripkin (2): media: dvb-usb: fix memory leak in dvb_usb_adapter_init tty: fix memory leak in vc_deallocate Pawel Laszczak (1): usb: gadget: uvc: add bInterval checking for HS mode Paweł Chmiel (1): clk: exynos7: Mark aclk_fsys1_200 as critical Peilin Ye (1): media: dvbdev: Fix memory leak in dvb_media_device_free() Phil Elwell (1): usb: dwc2: Fix gadget DMA unmap direction Phillip Lougher (1): squashfs: fix divide error in calculate_skip() Phillip Potter (2): fbdev: zero-fill colormap in fbcmap.c net: geneve: modify IP header check in geneve6_xmit_skb and geneve_xmit_skb Pierre-Louis Bossart (1): ASoC: samsung: tm2_wm5110: check of of_parse return value Ping-Ke Shih (1): rtlwifi: 8821ae: upgrade PHY and RF parameters Quentin Perret (2): Revert "of/fdt: Make sure no-map does not remove already reserved regions" Revert "fdt: Properly handle "no-map" field in the memory region" Quinn Tran (1): scsi: qla2xxx: Fix use after free in bsg Rafael J. Wysocki (1): PCI: PM: Do not read power state in pci_enable_device_flags() Rander Wang (1): soundwire: stream: fix memory leak in stream config error path Randy Dunlap (1): powerpc: iommu: fix build when neither PCI or IBMVIO is set Robin Murphy (1): perf/arm_pmu_platform: Fix error handling Ruslan Bilovol (1): usb: gadget: f_uac1: validate input parameters Salil Mehta (1): net: hns3: Limiting the scope of vector_ring_chain variable Sandeep Singh (1): xhci: Add reset resume quirk for AMD xhci controller. Sean Christopherson (1): x86/cpu: Initialize MSR_TSC_AUX if RDTSCP *or* RDPID is supported Sean Young (1): media: ite-cir: check for receive overflow Sergei Trofimovich (1): ia64: module: fix symbolizer crash on fdescr Sergey Shtylyov (12): pata_arasan_cf: fix IRQ check pata_ipx4xx_cf: fix IRQ check sata_mv: add IRQ checks ata: libahci_platform: fix IRQ check scsi: jazz_esp: Add IRQ check scsi: sun3x_esp: Add IRQ check scsi: sni_53c710: Add IRQ check i2c: cadence: add IRQ check i2c: emev2: add IRQ check i2c: jz4780: add IRQ check i2c: sh7760: add IRQ check i2c: sh7760: fix IRQ error path Seunghui Lee (1): mmc: core: Set read only for SD cards with permanent write protect bit Shengjiu Wang (1): ASoC: ak5558: correct reset polarity Shuah Khan (1): ath10k: Fix ath10k_wmi_tlv_op_pull_peer_stats_info() unlock without lock Sindhu Devale (1): RDMA/i40iw: Fix error unwinding when i40iw_hmc_sd_one fails Srikar Dronamraju (1): powerpc/smp: Set numa node before updating mask Srinivas Kandagatla (1): soundwire: bus: Fix device found flag correctly Stefan Berger (1): tpm: vtpm_proxy: Avoid reading host log when using a virtual device Stefano Garzarella (1): vsock/vmci: log once the failed queue pair allocation Steffen Dirkwinkel (1): platform/x86: pmc_atom: Match all Beckhoff Automation baytrail boards with critclk_systems DMI table Steven Rostedt (VMware) (3): ftrace: Handle commands when closing set_ftrace_filter file tracing: Map all PIDs to command lines tracing: Restructure trace_clock_global() to never block Sudhakar Panneerselvam (1): md/bitmap: wait for external bitmap writes to complete during tear down Taehee Yoo (1): hsr: use netdev_err() instead of WARN_ONCE() Takashi Iwai (12): ALSA: hda/conexant: Re-order CX5066 quirk table entries ALSA: usb-audio: Explicitly set up the clock selector ALSA: usb-audio: More constifications ALSA: hda/realtek: Re-order ALC882 Acer quirk table entries ALSA: hda/realtek: Re-order ALC882 Sony quirk table entries ALSA: hda/realtek: Re-order ALC882 Clevo quirk table entries ALSA: hda/realtek: Re-order ALC269 HP quirk table entries ALSA: hda/realtek: Re-order ALC269 Dell quirk table entries ALSA: hda/realtek: Re-order ALC269 Sony quirk table entries ALSA: hda/realtek: Re-order ALC269 Lenovo quirk table entries ALSA: hda/realtek: Remove redundant entry for ALC861 Haier/Uniwill devices ALSA: usb-audio: Add error checks for usb_driver_claim_interface() calls Tao Ren (1): usb: gadget: aspeed: fix dma map failure Tetsuo Handa (4): misc: vmw_vmci: explicitly initialize vmci_notify_bm_set_msg struct misc: vmw_vmci: explicitly initialize vmci_datagram payload ttyprintk: Add TTY hangup callback. Bluetooth: initialize skb_queue_head at l2cap_chan_create() Thinh Nguyen (2): usb: xhci: Fix port minor revision usb: dwc3: gadget: Fix START_TRANSFER link state check Thomas Gleixner (2): Revert 337f13046ff0 ("futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op") KVM: x86: Cancel pvclock_gtod_work on module removal Timo Gurr (1): ALSA: usb-audio: Add dB range mapping for Sennheiser Communications Headset PC 8 Toke Høiland-Jørgensen (1): ath9k: Fix error check in ath9k_hw_read_revisions() for PCI devices Tong Zhang (5): crypto: qat - don't release uninitialized resources crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ALSA: hdsp: don't disable if not enabled ALSA: hdspm: don't disable if not enabled ALSA: rme9652: don't disable if not enabled Tony Ambardar (1): powerpc: fix EDEADLOCK redefinition error in uapi/asm/errno.h Trond Myklebust (4): NFS: Don't discard pNFS layout segments that are marked for return NFSv4: Don't discard segments marked for return in _pnfs_return_layout() NFSv4.2: Always flush out writes in nfs42_proc_fallocate() NFS: Deal correctly with attribute generation counter overflow Tudor Ambarus (1): spi: spi-ti-qspi: Free DMA resources Tyrel Datwyler (1): powerpc/pseries: extract host bridge from pci_bus prior to bus removal Vasily Gorbik (1): s390/disassembler: increase ebpf disasm buffer size Vineet Gupta (1): ARC: entry: fix off-by-one error in syscall number validation Vitaly Kuznetsov (1): genirq/matrix: Prevent allocation counter corruption Waiman Long (1): sched/debug: Fix cgroup_path[] serialization Wang Wensheng (3): IB/hfi1: Fix error return code in parse_platform_config() RDMA/srpt: Fix error return code in srpt_cm_req_recv() mm/sparse: add the missing sparse_buffer_fini() in error branch Wei Yongjun (2): spi: dln2: Fix reference leak to master spi: omap-100k: Fix reference leak to master Wesley Cheng (2): usb: dwc3: gadget: Ignore EP queue requests during bus reset usb: dwc3: gadget: Return success always for kick transfer in ep queue William A. Kennington III (1): spi: Fix use-after-free with devm_spi_alloc_* Wolfram Sang (1): i2c: bail out early when RDWR parameters are wrong Xie He (1): net: lapbether: Prevent racing when checking whether the netif is running Xin Long (4): Revert "net/sctp: fix race condition in sctp_destroy_sock" sctp: delay auto_asconf init until binding the first addr sctp: do asoc update earlier in sctp_sf_do_dupcook_a sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b Yang Yang (1): jffs2: check the validity of dstlen in jffs2_zlib_compress() Yang Yingliang (10): phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove() power: supply: generic-adc-battery: fix possible use-after-free in gab_remove() power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove() media: tc358743: fix possible use-after-free in tc358743_remove() media: adv7604: fix possible use-after-free in adv76xx_remove() media: i2c: adv7511-v4l2: fix possible use-after-free in adv7511_remove() media: i2c: adv7842: fix possible use-after-free in adv7842_remove() USB: gadget: udc: fix wrong pointer passed to IS_ERR() and PTR_ERR() media: omap4iss: return error code when omap4iss_get() failed PCI: endpoint: Fix missing destroy_workqueue() Yannick Vignon (1): net: stmmac: Do not enable RX FIFO overflow interrupts Yaqi Chen (1): samples/bpf: Fix broken tracex1 due to kprobe argument change Ye Bin (1): usbip: vudc: fix missing unlock on error in usbip_sockfd_store() Yonghong Song (1): selftests: Set CC to clang in lib.mk if LLVM is set Yunjian Wang (1): i40e: Fix use-after-free in i40e_client_subtask() Zhao Heming (1): md: md_open returns -EBUSY when entering racing area Zhen Lei (2): tpm: fix error return code in tpm2_get_cc_attrs_tbl() ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook Zqiang (1): lib: stackdepot: turn depot_lock spinlock to raw_spinlock dongjian (1): power: supply: Use IRQF_ONESHOT karthik alapati (1): staging: wimax/i2400m: fix byte-order issue lizhe (1): jffs2: Fix kasan slab-out-of-bounds problem louis.wang (1): ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend() shaoyunl (1): drm/amdgpu : Fix asic reset regression issue introduce by 8f211fe8ac7c4f yangerkun (1): block: reexpand iov_iter after read/write Álvaro Fernández Rojas (1): mtd: rawnand: brcmnand: fix OOB R/W with Hamming ECC Documentation/sphinx/parse-headers.pl | 2 +- Documentation/target/tcm_mod_builder.py | 2 +- Documentation/trace/postprocess/decode_msr.py | 2 +- .../trace-pagealloc-postprocess.pl | 2 +- .../postprocess/trace-vmscan-postprocess.pl | 2 +- Makefile | 2 +- arch/arc/kernel/entry.S | 4 +- arch/arm/boot/compressed/Makefile | 4 +- arch/arm/boot/dts/exynos4412-midas.dtsi | 6 +- .../boot/dts/exynos4412-odroid-common.dtsi | 2 +- arch/arm/boot/dts/exynos5250-smdk5250.dts | 2 +- arch/arm/boot/dts/exynos5250-snow-common.dtsi | 2 +- arch/arm/boot/dts/uniphier-pxs2.dtsi | 2 +- arch/arm/include/asm/kvm_host.h | 1 + arch/arm/kernel/asm-offsets.c | 3 + arch/arm/kernel/hw_breakpoint.c | 2 +- arch/arm/kernel/smccc-call.S | 11 +- arch/arm/kernel/suspend.c | 19 +- arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 3 +- arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 +- .../boot/dts/socionext/uniphier-ld20.dtsi | 2 +- .../boot/dts/socionext/uniphier-pxs3.dtsi | 4 +- arch/arm64/include/asm/kvm_host.h | 1 + arch/arm64/kernel/vdso/vdso.lds.S | 8 +- arch/arm64/kvm/debug.c | 88 ++- arch/ia64/include/asm/module.h | 6 +- arch/ia64/kernel/module.c | 29 +- arch/ia64/scripts/unwcheck.py | 2 +- arch/mips/include/asm/div64.h | 55 +- arch/mips/pci/pci-legacy.c | 9 +- arch/mips/pci/pci-mt7620.c | 5 +- arch/mips/pci/pci-rt2880.c | 37 +- arch/powerpc/Kconfig | 2 +- arch/powerpc/Kconfig.debug | 1 + arch/powerpc/include/asm/book3s/64/radix.h | 6 +- arch/powerpc/include/uapi/asm/errno.h | 1 + arch/powerpc/kernel/eeh.c | 11 +- arch/powerpc/kernel/iommu.c | 4 +- arch/powerpc/kernel/prom.c | 2 +- arch/powerpc/kernel/smp.c | 6 +- arch/powerpc/lib/feature-fixups.c | 35 +- arch/powerpc/mm/pgtable-radix.c | 4 +- arch/powerpc/perf/isa207-common.c | 4 +- arch/powerpc/platforms/52xx/lite5200_sleep.S | 2 +- arch/powerpc/platforms/pseries/hotplug-cpu.c | 3 - arch/powerpc/platforms/pseries/pci_dlpar.c | 4 +- arch/riscv/include/asm/ftrace.h | 14 +- arch/riscv/kernel/mcount.S | 10 +- arch/s390/crypto/arch_random.c | 4 + arch/s390/kernel/dis.c | 2 +- arch/s390/kvm/gaccess.h | 54 +- arch/s390/kvm/kvm-s390.c | 4 +- arch/um/kernel/dyn.lds.S | 6 + arch/um/kernel/uml.lds.S | 6 + arch/x86/Kconfig | 1 + arch/x86/Makefile | 1 + arch/x86/entry/vdso/vma.c | 2 +- arch/x86/events/amd/iommu.c | 6 +- arch/x86/kernel/cpu/microcode/core.c | 8 +- arch/x86/kernel/kprobes/core.c | 17 +- arch/x86/kvm/x86.c | 1 + arch/x86/lib/msr-smp.c | 4 +- block/blk-mq.c | 6 +- crypto/api.c | 2 +- drivers/acpi/arm64/gtdt.c | 10 +- drivers/acpi/cppc_acpi.c | 14 +- drivers/acpi/custom_method.c | 4 +- drivers/acpi/scan.c | 1 + drivers/ata/libahci_platform.c | 4 +- drivers/ata/pata_arasan_cf.c | 15 +- drivers/ata/pata_ixp4xx_cf.c | 6 +- drivers/ata/sata_mv.c | 4 + drivers/base/regmap/regmap-debugfs.c | 1 + drivers/block/null_blk_zoned.c | 1 + drivers/bus/qcom-ebi2.c | 4 +- drivers/char/tpm/eventlog/common.c | 3 + drivers/char/tpm/tpm2-cmd.c | 1 + drivers/char/ttyprintk.c | 11 + drivers/clk/mvebu/armada-37xx-periph.c | 83 +-- drivers/clk/qcom/a53-pll.c | 1 + drivers/clk/samsung/clk-exynos7.c | 7 +- drivers/clk/socfpga/clk-gate-a10.c | 1 + drivers/clk/uniphier/clk-uniphier-mux.c | 4 +- drivers/cpufreq/armada-37xx-cpufreq.c | 76 ++- drivers/crypto/qat/qat_c3xxxvf/adf_drv.c | 4 +- drivers/crypto/qat/qat_c62xvf/adf_drv.c | 4 +- drivers/crypto/qat/qat_common/adf_isr.c | 29 +- drivers/crypto/qat/qat_common/adf_transport.c | 1 + drivers/crypto/qat/qat_common/adf_vf_isr.c | 17 +- drivers/crypto/qat/qat_dh895xccvf/adf_drv.c | 4 +- drivers/extcon/extcon-arizona.c | 17 +- drivers/firmware/Kconfig | 1 + drivers/gpio/gpiolib-acpi.c | 14 + drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_iommu.c | 6 + drivers/gpu/drm/amd/amdkfd/kfd_iommu.h | 9 +- drivers/gpu/drm/i915/gvt/gvt.c | 8 +- drivers/gpu/drm/i915/intel_pm.c | 2 +- .../gpu/drm/msm/disp/mdp5/mdp5_cmd_encoder.c | 10 +- drivers/gpu/drm/radeon/radeon.h | 1 + drivers/gpu/drm/radeon/radeon_atombios.c | 26 +- drivers/gpu/drm/radeon/radeon_kms.c | 1 + drivers/gpu/drm/radeon/radeon_pm.c | 8 + drivers/gpu/drm/radeon/si_dpm.c | 3 + drivers/hid/hid-ids.h | 1 + drivers/hid/hid-plantronics.c | 60 ++- drivers/hsi/hsi_core.c | 3 +- drivers/hv/channel_mgmt.c | 30 +- drivers/hwtracing/intel_th/gth.c | 4 +- drivers/hwtracing/intel_th/pci.c | 10 + drivers/i2c/busses/i2c-cadence.c | 5 +- drivers/i2c/busses/i2c-emev2.c | 5 +- drivers/i2c/busses/i2c-jz4780.c | 5 +- drivers/i2c/busses/i2c-sh7760.c | 5 +- drivers/i2c/i2c-dev.c | 9 +- drivers/iio/accel/adis16201.c | 2 +- drivers/iio/gyro/mpu3050-core.c | 13 +- drivers/iio/light/tsl2583.c | 8 + .../iio/proximity/pulsedlight-lidar-lite-v2.c | 1 + drivers/infiniband/hw/bnxt_re/qplib_res.c | 1 + drivers/infiniband/hw/hfi1/firmware.c | 1 + drivers/infiniband/hw/i40iw/i40iw_pble.c | 6 +- drivers/infiniband/ulp/srpt/ib_srpt.c | 1 + drivers/input/touchscreen/elants_i2c.c | 44 +- drivers/input/touchscreen/silead.c | 44 +- drivers/irqchip/irq-gic-v3-mbi.c | 2 +- drivers/isdn/capi/kcapi.c | 4 +- drivers/md/dm-raid.c | 34 +- drivers/md/dm-rq.c | 2 + drivers/md/md-bitmap.c | 2 + drivers/md/md.c | 73 ++- .../md/persistent-data/dm-btree-internal.h | 4 +- .../md/persistent-data/dm-space-map-common.c | 2 + .../md/persistent-data/dm-space-map-common.h | 8 +- drivers/md/raid1.c | 2 + drivers/media/dvb-core/dvbdev.c | 1 + drivers/media/i2c/adv7511-v4l2.c | 2 +- drivers/media/i2c/adv7604.c | 2 +- drivers/media/i2c/adv7842.c | 2 +- drivers/media/i2c/tc358743.c | 2 +- drivers/media/pci/saa7164/saa7164-encoder.c | 20 +- drivers/media/pci/sta2x11/Kconfig | 1 + drivers/media/platform/vivid/vivid-core.c | 6 +- drivers/media/platform/vivid/vivid-vid-out.c | 2 +- drivers/media/rc/ite-cir.c | 8 +- drivers/media/tuners/m88rs6000t.c | 6 +- drivers/media/usb/dvb-usb/dvb-usb-init.c | 20 +- drivers/media/usb/dvb-usb/dvb-usb.h | 2 +- drivers/media/usb/em28xx/em28xx-dvb.c | 1 + drivers/media/usb/gspca/gspca.c | 2 + drivers/media/usb/gspca/gspca.h | 1 + drivers/media/usb/gspca/sq905.c | 2 +- drivers/media/usb/gspca/stv06xx/stv06xx.c | 9 + drivers/memory/omap-gpmc.c | 7 +- drivers/mfd/stm32-timers.c | 7 +- drivers/misc/aspeed-lpc-snoop.c | 4 +- drivers/misc/kgdbts.c | 26 +- drivers/misc/lis3lv02d/lis3lv02d.c | 21 +- drivers/misc/vmw_vmci/vmci_doorbell.c | 2 +- drivers/misc/vmw_vmci/vmci_guest.c | 2 +- drivers/mmc/core/block.c | 16 + drivers/mmc/core/core.c | 2 +- drivers/mmc/core/core.h | 9 + drivers/mmc/core/mmc.c | 7 + drivers/mmc/core/mmc_ops.c | 4 +- drivers/mmc/core/sd.c | 6 + drivers/mmc/host/sdhci-pci-core.c | 27 + drivers/mtd/mtdchar.c | 8 +- drivers/mtd/mtdcore.c | 3 + drivers/mtd/nand/raw/atmel/nand-controller.c | 6 +- drivers/mtd/nand/raw/brcmnand/brcmnand.c | 6 + drivers/mtd/nand/raw/fsmc_nand.c | 2 + drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 2 +- drivers/mtd/nand/raw/qcom_nandc.c | 7 +- drivers/mtd/nand/spi/core.c | 2 + drivers/net/ethernet/broadcom/bnxt/bnxt.c | 4 +- .../ethernet/cavium/liquidio/cn23xx_pf_regs.h | 2 +- .../ethernet/cavium/thunder/nicvf_queues.c | 2 +- .../ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 2 +- drivers/net/ethernet/cisco/enic/enic_main.c | 7 +- .../net/ethernet/hisilicon/hns3/hns3_enet.c | 3 +- drivers/net/ethernet/intel/i40e/i40e_client.c | 1 + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1 + .../net/ethernet/mellanox/mlxsw/spectrum_mr.c | 30 +- drivers/net/ethernet/qualcomm/emac/emac-mac.c | 4 +- .../ethernet/stmicro/stmmac/dwmac-ipq806x.c | 2 + .../net/ethernet/stmicro/stmmac/dwmac4_dma.c | 7 +- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 14 +- drivers/net/ethernet/ti/davinci_emac.c | 4 +- drivers/net/fddi/Kconfig | 15 +- drivers/net/fddi/defxx.c | 47 +- drivers/net/geneve.c | 4 +- drivers/net/wan/lapbether.c | 32 +- drivers/net/wimax/i2400m/op-rfkill.c | 2 +- drivers/net/wireless/ath/ath10k/wmi-tlv.c | 3 + drivers/net/wireless/ath/ath9k/htc_drv_init.c | 2 +- drivers/net/wireless/ath/ath9k/hw.c | 2 +- .../net/wireless/intel/ipw2x00/libipw_wx.c | 6 +- drivers/net/wireless/marvell/mwl8k.c | 1 + .../net/wireless/mediatek/mt7601u/eeprom.c | 2 +- .../realtek/rtlwifi/rtl8821ae/table.c | 500 +++++++++++++----- drivers/net/wireless/rsi/rsi_91x_sdio.c | 2 +- drivers/net/wireless/wl3501.h | 47 +- drivers/net/wireless/wl3501_cs.c | 54 +- drivers/nfc/pn533/pn533.c | 3 + drivers/nvme/host/core.c | 3 +- drivers/nvme/host/multipath.c | 4 + drivers/of/fdt.c | 12 +- drivers/pci/controller/pci-thunder-ecam.c | 2 +- drivers/pci/controller/pci-thunder-pem.c | 13 +- drivers/pci/controller/pcie-iproc-msi.c | 2 +- drivers/pci/endpoint/functions/pci-epf-test.c | 3 + drivers/pci/hotplug/acpiphp_glue.c | 1 + drivers/pci/pci.c | 16 +- drivers/pci/pci.h | 6 + drivers/pci/probe.c | 1 + drivers/perf/arm_pmu_platform.c | 2 +- drivers/phy/marvell/Kconfig | 4 +- drivers/phy/ti/phy-twl4030-usb.c | 2 +- drivers/pinctrl/pinctrl-ingenic.c | 3 +- drivers/pinctrl/samsung/pinctrl-exynos.c | 10 +- drivers/platform/x86/pmc_atom.c | 28 +- drivers/power/supply/bq27xxx_battery.c | 51 +- drivers/power/supply/generic-adc-battery.c | 2 +- drivers/power/supply/lp8788-charger.c | 2 +- drivers/power/supply/pm2301_charger.c | 2 +- drivers/power/supply/s3c_adc_battery.c | 2 +- drivers/power/supply/tps65090-charger.c | 2 +- drivers/power/supply/tps65217_charger.c | 2 +- drivers/rpmsg/qcom_glink_native.c | 1 + drivers/rtc/rtc-ds1307.c | 12 +- drivers/scsi/device_handler/scsi_dh_alua.c | 5 +- drivers/scsi/ibmvscsi/ibmvfc.c | 57 +- drivers/scsi/jazz_esp.c | 4 +- drivers/scsi/libfc/fc_lport.c | 2 +- drivers/scsi/lpfc/lpfc_crtn.h | 3 - drivers/scsi/lpfc/lpfc_hw4.h | 174 +----- drivers/scsi/lpfc/lpfc_init.c | 103 +--- drivers/scsi/lpfc/lpfc_mbox.c | 36 -- drivers/scsi/lpfc/lpfc_nportdisc.c | 11 +- drivers/scsi/lpfc/lpfc_nvmet.c | 1 - drivers/scsi/lpfc/lpfc_sli.c | 1 - drivers/scsi/qla2xxx/qla_attr.c | 8 +- drivers/scsi/qla2xxx/qla_bsg.c | 3 +- drivers/scsi/qla2xxx/qla_os.c | 7 - drivers/scsi/sni_53c710.c | 5 +- drivers/scsi/sun3x_esp.c | 4 +- drivers/soc/qcom/mdt_loader.c | 17 + drivers/soundwire/bus.c | 3 +- drivers/soundwire/stream.c | 10 +- drivers/spi/spi-dln2.c | 2 +- drivers/spi/spi-omap-100k.c | 6 +- drivers/spi/spi-ti-qspi.c | 20 +- drivers/spi/spi.c | 9 +- drivers/staging/erofs/erofs_fs.h | 3 + drivers/staging/erofs/inode.c | 6 + drivers/staging/greybus/uart.c | 2 - drivers/staging/media/omap4iss/iss.c | 4 +- drivers/staging/rtl8192u/r8192U_core.c | 2 +- drivers/target/target_core_pscsi.c | 3 +- drivers/target/target_core_user.c | 4 +- drivers/tee/optee/core.c | 10 - drivers/thermal/fair_share.c | 4 + drivers/tty/serial/stm32-usart.c | 17 +- drivers/tty/serial/stm32-usart.h | 3 - drivers/tty/tty_io.c | 8 +- drivers/tty/vt/vt.c | 1 + drivers/usb/class/cdc-acm.c | 2 - drivers/usb/class/cdc-wdm.c | 30 +- drivers/usb/core/hub.c | 6 +- drivers/usb/dwc2/core.h | 2 + drivers/usb/dwc2/core_intr.c | 162 +++--- drivers/usb/dwc2/gadget.c | 3 +- drivers/usb/dwc2/hcd.c | 10 +- drivers/usb/dwc3/dwc3-omap.c | 5 + drivers/usb/dwc3/dwc3-pci.c | 1 + drivers/usb/dwc3/gadget.c | 26 +- drivers/usb/gadget/config.c | 4 + drivers/usb/gadget/function/f_fs.c | 3 +- drivers/usb/gadget/function/f_uac1.c | 43 ++ drivers/usb/gadget/function/f_uvc.c | 7 +- drivers/usb/gadget/udc/aspeed-vhub/core.c | 3 +- drivers/usb/gadget/udc/aspeed-vhub/epn.c | 2 +- drivers/usb/gadget/udc/dummy_hcd.c | 23 +- drivers/usb/gadget/udc/fotg210-udc.c | 26 +- drivers/usb/gadget/udc/pch_udc.c | 49 +- drivers/usb/gadget/udc/r8a66597-udc.c | 2 + drivers/usb/gadget/udc/snps_udc_plat.c | 4 +- drivers/usb/host/fotg210-hcd.c | 4 +- drivers/usb/host/sl811-hcd.c | 9 +- drivers/usb/host/xhci-ext-caps.h | 5 +- drivers/usb/host/xhci-mem.c | 9 + drivers/usb/host/xhci-mtk.c | 3 + drivers/usb/host/xhci-mtk.h | 1 + drivers/usb/host/xhci-pci.c | 4 +- drivers/usb/host/xhci.c | 20 +- drivers/usb/typec/tcpci.c | 21 +- drivers/usb/usbip/vudc_sysfs.c | 2 + drivers/vfio/mdev/mdev_sysfs.c | 2 +- drivers/video/fbdev/core/fbcmap.c | 8 +- fs/block_dev.c | 20 +- fs/btrfs/ctree.c | 20 + fs/btrfs/ioctl.c | 18 +- fs/btrfs/relocation.c | 6 +- fs/ceph/caps.c | 1 + fs/ceph/inode.c | 1 + fs/cifs/smb2ops.c | 2 +- fs/dlm/debug_fs.c | 1 + fs/ecryptfs/main.c | 6 + fs/ext4/super.c | 6 +- fs/f2fs/inline.c | 3 +- fs/fuse/cuse.c | 2 + fs/hfsplus/extents.c | 7 +- fs/jffs2/compr_rtime.c | 3 + fs/jffs2/scan.c | 2 +- fs/nfs/flexfilelayout/flexfilelayout.c | 2 +- fs/nfs/inode.c | 8 +- fs/nfs/nfs42proc.c | 21 +- fs/nfs/pnfs.c | 7 +- fs/overlayfs/copy_up.c | 3 +- fs/squashfs/file.c | 6 +- fs/ubifs/replay.c | 3 +- include/crypto/acompress.h | 2 + include/crypto/aead.h | 2 + include/crypto/akcipher.h | 2 + include/crypto/hash.h | 4 + include/crypto/kpp.h | 2 + include/crypto/rng.h | 2 + include/crypto/skcipher.h | 2 + include/linux/hid.h | 2 + include/linux/i2c.h | 2 + include/linux/module.h | 26 +- include/linux/power/bq27xxx_battery.h | 1 - include/linux/smp.h | 2 +- include/linux/spi/spi.h | 3 + include/linux/tty_driver.h | 2 +- include/net/bluetooth/hci_core.h | 1 + include/scsi/libfcoe.h | 2 +- include/uapi/linux/netfilter/xt_SECMARK.h | 6 + include/uapi/linux/tty_flags.h | 4 +- kernel/futex.c | 3 +- kernel/irq/matrix.c | 4 +- kernel/kexec_file.c | 4 +- kernel/module.c | 61 ++- kernel/sched/debug.c | 42 +- kernel/sched/fair.c | 12 +- kernel/smp.c | 10 +- kernel/time/posix-timers.c | 4 +- kernel/trace/ftrace.c | 5 +- kernel/trace/trace.c | 41 +- kernel/trace/trace_clock.c | 44 +- kernel/up.c | 2 +- lib/bug.c | 33 +- lib/kobject_uevent.c | 9 +- lib/nlattr.c | 2 +- lib/stackdepot.c | 6 +- mm/hugetlb.c | 11 +- mm/khugepaged.c | 18 +- mm/ksm.c | 1 + mm/memory-failure.c | 2 +- mm/shmem.c | 12 +- mm/sparse.c | 1 + net/bluetooth/ecdh_helper.h | 2 +- net/bluetooth/hci_event.c | 3 +- net/bluetooth/l2cap_core.c | 4 + net/bluetooth/l2cap_sock.c | 8 + net/bridge/br_arp_nd_proxy.c | 4 +- net/core/ethtool.c | 2 +- net/hsr/hsr_framereg.c | 3 +- net/ipv4/tcp_cong.c | 4 + net/ipv6/ip6_gre.c | 7 +- net/ipv6/ip6_tunnel.c | 3 +- net/ipv6/ip6_vti.c | 3 +- net/ipv6/sit.c | 5 +- net/mac80211/main.c | 7 +- net/mac80211/mlme.c | 5 + net/netfilter/nf_conntrack_standalone.c | 5 +- net/netfilter/nfnetlink_osf.c | 2 + net/netfilter/nft_set_hash.c | 10 +- net/netfilter/xt_SECMARK.c | 88 ++- net/nfc/digital_dep.c | 2 + net/nfc/llcp_sock.c | 4 + net/openvswitch/actions.c | 8 +- net/sctp/sm_make_chunk.c | 2 +- net/sctp/sm_statefuns.c | 28 +- net/sctp/socket.c | 38 +- net/smc/af_smc.c | 4 +- net/tipc/netlink_compat.c | 2 +- net/vmw_vsock/vmci_transport.c | 3 +- net/wireless/scan.c | 2 + net/xdp/xsk_queue.h | 7 +- samples/bpf/tracex1_kern.c | 4 +- samples/kfifo/bytestream-example.c | 8 +- samples/kfifo/inttype-example.c | 8 +- samples/kfifo/record-example.c | 8 +- scripts/bloat-o-meter | 2 +- scripts/config | 2 +- scripts/diffconfig | 2 +- scripts/kconfig/nconf.c | 2 +- scripts/recordmcount.pl | 2 +- scripts/split-man.pl | 2 +- security/commoncap.c | 2 +- sound/core/init.c | 2 - sound/isa/sb/emu8000.c | 4 +- sound/isa/sb/sb16_csp.c | 8 +- sound/pci/hda/hda_generic.c | 16 +- sound/pci/hda/patch_conexant.c | 14 +- sound/pci/hda/patch_realtek.c | 89 ++-- sound/pci/rme9652/hdsp.c | 3 +- sound/pci/rme9652/hdspm.c | 3 +- sound/pci/rme9652/rme9652.c | 3 +- sound/soc/codecs/ak5558.c | 4 +- sound/soc/codecs/rt286.c | 23 +- sound/soc/intel/boards/bytcr_rt5640.c | 20 + sound/soc/samsung/tm2_wm5110.c | 2 +- sound/usb/card.c | 14 +- sound/usb/clock.c | 18 +- sound/usb/midi.c | 2 +- sound/usb/mixer.c | 60 +-- sound/usb/mixer_maps.c | 68 ++- sound/usb/mixer_quirks.c | 6 +- sound/usb/mixer_scarlett.c | 14 +- sound/usb/proc.c | 2 +- sound/usb/quirks.c | 16 +- sound/usb/stream.c | 4 +- sound/usb/usbaudio.h | 2 + sound/usb/validate.c | 4 +- tools/perf/python/tracepoint.py | 2 +- tools/perf/util/symbol_fprintf.c | 2 +- tools/testing/ktest/compare-ktest-sample.pl | 2 +- tools/testing/selftests/bpf/test_offload.py | 2 +- tools/testing/selftests/lib.mk | 4 + .../testing/selftests/tc-testing/tdc_batch.py | 2 +- virt/kvm/arm/arm.c | 2 + 437 files changed, 3166 insertions(+), 1786 deletions(-) -- 2.25.1

1 413

[PATCH kernel-4.19 1/2] x86/apic/vector: Force interupt handler invocation to irq context
by Yang Yingliang 26 May '21

26 May '21

From: Thomas Gleixner <tglx(a)linutronix.de> mainline inclusion from mainline-5.7 commit 008f1d60fe25810d4554916744b0975d76601b64 category: bugfix bugzilla: NA CVE: NA ------------------------------------------------- Sathyanarayanan reported that the PCI-E AER error injection mechanism can result in a NULL pointer dereference in apic_ack_edge(): BUG: unable to handle kernel NULL pointer dereference at 0000000000000078 RIP: 0010:apic_ack_edge+0x1e/0x40 Call Trace: handle_edge_irq+0x7d/0x1e0 generic_handle_irq+0x27/0x30 aer_inject_write+0x53a/0x720 It crashes in irq_complete_move() which dereferences get_irq_regs() which is obviously NULL when this is called from non interrupt context. Of course the pointer could be checked, but that just papers over the real issue. Invoking the low level interrupt handling mechanism from random code can wreckage the fragile interrupt affinity mechanism of x86 as interrupts can only be moved in interrupt context or with special care when a CPU goes offline and the move has to be enforced. In the best case this triggers the warning in the MSI affinity setter, but if the call happens on the correct CPU it just corrupts state and might prevent further interrupt delivery for the affected device. Mark the APIC interrupts as unsuitable for being invoked in random contexts. This prevents the AER injection from proliferating the wreckage, but that's less broken than the current state of affairs and more correct than just papering over the problem by sprinkling random checks all over the place and silently corrupting state. Reported-by: sathyanarayanan.kuppuswamy(a)linux.intel.com Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Link: https://lkml.kernel.org/r/20200306130623.684591280@linutronix.de Signed-off-by: Liao Chang <liaochang1(a)huawei.com> Reviewed-by: Hanjun Guo <guohanjun(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- arch/x86/kernel/apic/vector.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index a2a17704adc84..2114291badcdc 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -560,6 +560,12 @@ static int x86_vector_alloc_irqs(struct irq_domain *domain, unsigned int virq, irqd->chip_data = apicd; irqd->hwirq = virq + i; irqd_set_single_target(irqd); + /* + * Prevent that any of these interrupts is invoked in + * non interrupt context via e.g. generic_handle_irq() + * as that can corrupt the affinity move state. + */ + irqd_set_handle_enforce_irqctx(irqd); /* Don't invoke affinity setter on deactivated interrupts */ irqd_set_affinity_on_activate(irqd); -- 2.25.1

1 1

[PATCH kernel-4.19 01/15] x86/cpufeatures: Enumerate the new AVX512 BFLOAT16 instructions
by Yang Yingliang 26 May '21

26 May '21

From: Fenghua Yu <fenghua.yu(a)intel.com> mainline inclusion from mainline-v5.3-rc1 commit b302e4b176d00e1cbc80148c5d0aee36751f7480 category: feature bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=44 CVE: NA ----------------------------------------------- AVX512 BFLOAT16 instructions support 16-bit BFLOAT16 floating-point format (BF16) for deep learning optimization. BF16 is a short version of 32-bit single-precision floating-point format (FP32) and has several advantages over 16-bit half-precision floating-point format (FP16). BF16 keeps FP32 accumulation after multiplication without loss of precision, offers more than enough range for deep learning training tasks, and doesn't need to handle hardware exception. AVX512 BFLOAT16 instructions are enumerated in CPUID.7.1:EAX[bit 5] AVX512_BF16. CPUID.7.1:EAX contains only feature bits. Reuse the currently empty word 12 as a pure features word to hold the feature bits including AVX512_BF16. Detailed information of the CPUID bit and AVX512 BFLOAT16 instructions can be found in the latest Intel Architecture Instruction Set Extensions and Future Features Programming Reference. [ bp: Check CPUID(7) subleaf validity before accessing subleaf 1. ] Signed-off-by: Fenghua Yu <fenghua.yu(a)intel.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> Cc: "Chang S. Bae" <chang.seok.bae(a)intel.com> Cc: Frederic Weisbecker <frederic(a)kernel.org> Cc: "H. Peter Anvin" <hpa(a)zytor.com> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Jann Horn <jannh(a)google.com> Cc: Masahiro Yamada <yamada.masahiro(a)socionext.com> Cc: Michael Ellerman <mpe(a)ellerman.id.au> Cc: Nadav Amit <namit(a)vmware.com> Cc: Paolo Bonzini <pbonzini(a)redhat.com> Cc: Pavel Tatashin <pasha.tatashin(a)oracle.com> Cc: Peter Feiner <pfeiner(a)google.com> Cc: Radim Krcmar <rkrcmar(a)redhat.com> Cc: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> Cc: "Ravi V Shankar" <ravi.v.shankar(a)intel.com> Cc: Robert Hoo <robert.hu(a)linux.intel.com> Cc: "Sean J Christopherson" <sean.j.christopherson(a)intel.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Thomas Lendacky <Thomas.Lendacky(a)amd.com> Cc: x86 <x86(a)kernel.org> Link: https://lkml.kernel.org/r/1560794416-217638-3-git-send-email-fenghua.yu@int… Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> Reviewed-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- arch/x86/include/asm/cpufeature.h | 2 +- arch/x86/include/asm/cpufeatures.h | 3 +++ arch/x86/kernel/cpu/common.c | 6 ++++++ arch/x86/kernel/cpu/cpuid-deps.c | 1 + 4 files changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 68889ace9c4c6..4ce54074eea57 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -23,7 +23,7 @@ enum cpuid_leafs CPUID_7_0_EBX, CPUID_D_1_EAX, CPUID_LNX_4, - CPUID_DUMMY, + CPUID_7_1_EAX, CPUID_8000_0008_EBX, CPUID_6_EAX, CPUID_8000_000A_EDX, diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 48535113efa68..b40125de2770e 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -305,6 +305,9 @@ #define X86_FEATURE_FENCE_SWAPGS_USER (11*32+ 4) /* "" LFENCE in user entry SWAPGS path */ #define X86_FEATURE_FENCE_SWAPGS_KERNEL (11*32+ 5) /* "" LFENCE in kernel entry SWAPGS path */ +/* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */ +#define X86_FEATURE_AVX512_BF16 (12*32+ 5) /* AVX512 BFLOAT16 instructions */ + /* AMD-defined CPU features, CPUID level 0x80000008 (EBX), word 13 */ #define X86_FEATURE_CLZERO (13*32+ 0) /* CLZERO instruction */ #define X86_FEATURE_IRPERF (13*32+ 1) /* Instructions Retired Count */ diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 1d83e5f7c5a89..6e52e5a706e0b 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -854,6 +854,12 @@ void get_cpu_cap(struct cpuinfo_x86 *c) c->x86_capability[CPUID_7_0_EBX] = ebx; c->x86_capability[CPUID_7_ECX] = ecx; c->x86_capability[CPUID_7_EDX] = edx; + + /* Check valid sub-leaf index before accessing it */ + if (eax >= 1) { + cpuid_count(0x00000007, 1, &eax, &ebx, &ecx, &edx); + c->x86_capability[CPUID_7_1_EAX] = eax; + } } /* Extended state features: level 0x0000000d */ diff --git a/arch/x86/kernel/cpu/cpuid-deps.c b/arch/x86/kernel/cpu/cpuid-deps.c index fa07a224e7b98..a444028d81453 100644 --- a/arch/x86/kernel/cpu/cpuid-deps.c +++ b/arch/x86/kernel/cpu/cpuid-deps.c @@ -62,6 +62,7 @@ static const struct cpuid_dep cpuid_deps[] = { { X86_FEATURE_CQM_OCCUP_LLC, X86_FEATURE_CQM_LLC }, { X86_FEATURE_CQM_MBM_TOTAL, X86_FEATURE_CQM_LLC }, { X86_FEATURE_CQM_MBM_LOCAL, X86_FEATURE_CQM_LLC }, + { X86_FEATURE_AVX512_BF16, X86_FEATURE_AVX512VL }, {} }; -- 2.25.1

1 14

[PATCH kernel-4.19 1/7] genirq: Add protection against unsafe usage of generic_handle_irq()
by Yang Yingliang 26 May '21

26 May '21

From: Thomas Gleixner <tglx(a)linutronix.de> mainline inclusion from mainline-5.7 commit c16816acd08697b02a53f56f8936497a9f6f6e7a category: bugfix bugzilla: NA CVE: NA ------------------------------------------------- In general calling generic_handle_irq() with interrupts disabled from non interrupt context is harmless. For some interrupt controllers like the x86 trainwrecks this is outright dangerous as it might corrupt state if an interrupt affinity change is pending. Add infrastructure which allows to mark interrupts as unsafe and catch such usage in generic_handle_irq(). Reported-by: sathyanarayanan.kuppuswamy(a)linux.intel.com Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Acked-by: Marc Zyngier <maz(a)kernel.org> Link: https://lkml.kernel.org/r/20200306130623.590923677@linutronix.de Signed-off-by: Liao Chang <liaochang1(a)huawei.com> Reviewed-by: Hanjun Guo <guohanjun(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- include/linux/irq.h | 13 +++++++++++++ kernel/irq/internals.h | 8 ++++++++ kernel/irq/irqdesc.c | 6 ++++++ kernel/irq/resend.c | 5 +++-- 4 files changed, 30 insertions(+), 2 deletions(-) diff --git a/include/linux/irq.h b/include/linux/irq.h index 014d5804c1b59..ca367d98a991e 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -210,6 +210,8 @@ struct irq_data { * IRQD_CAN_RESERVE - Can use reservation mode * IRQD_MSI_NOMASK_QUIRK - Non-maskable MSI quirk for affinity change * required + * IRQD_HANDLE_ENFORCE_IRQCTX - Enforce that handle_irq_*() is only invoked + * from actual interrupt context. * IRQD_AFFINITY_ON_ACTIVATE - Affinity is set on activation. Don't call * irq_chip::irq_set_affinity() when deactivated. */ @@ -235,6 +237,7 @@ enum { IRQD_DEFAULT_TRIGGER_SET = (1 << 25), IRQD_CAN_RESERVE = (1 << 26), IRQD_MSI_NOMASK_QUIRK = (1 << 27), + IRQD_HANDLE_ENFORCE_IRQCTX = (1 << 28), IRQD_AFFINITY_ON_ACTIVATE = (1 << 29), }; @@ -305,6 +308,16 @@ static inline bool irqd_is_single_target(struct irq_data *d) return __irqd_to_state(d) & IRQD_SINGLE_TARGET; } +static inline void irqd_set_handle_enforce_irqctx(struct irq_data *d) +{ + __irqd_to_state(d) |= IRQD_HANDLE_ENFORCE_IRQCTX; +} + +static inline bool irqd_is_handle_enforce_irqctx(struct irq_data *d) +{ + return __irqd_to_state(d) & IRQD_HANDLE_ENFORCE_IRQCTX; +} + static inline bool irqd_is_wakeup_set(struct irq_data *d) { return __irqd_to_state(d) & IRQD_WAKEUP_STATE; diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index ed4843df6220c..207bac6ad4c30 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -422,6 +422,10 @@ static inline struct cpumask *irq_desc_get_pending_mask(struct irq_desc *desc) { return desc->pending_mask; } +static inline bool handle_enforce_irqctx(struct irq_data *data) +{ + return irqd_is_handle_enforce_irqctx(data); +} bool irq_fixup_move_pending(struct irq_desc *desc, bool force_clear); #else /* CONFIG_GENERIC_PENDING_IRQ */ static inline bool irq_can_move_pcntxt(struct irq_data *data) @@ -448,6 +452,10 @@ static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear) { return false; } +static inline bool handle_enforce_irqctx(struct irq_data *data) +{ + return false; +} #endif /* !CONFIG_GENERIC_PENDING_IRQ */ #if !defined(CONFIG_IRQ_DOMAIN) || !defined(CONFIG_IRQ_DOMAIN_HIERARCHY) diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index dc4549fc71f95..ffdf02b01d816 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -633,9 +633,15 @@ void irq_init_desc(unsigned int irq) int generic_handle_irq(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); + struct irq_data *data; if (!desc) return -EINVAL; + + data = irq_desc_get_irq_data(desc); + if (WARN_ON_ONCE(!in_irq() && handle_enforce_irqctx(data))) + return -EPERM; + generic_handle_irq_desc(desc); return 0; } diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 98c04ca5fa43d..5064b13b80d60 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -72,8 +72,9 @@ void check_irq_resend(struct irq_desc *desc) desc->istate &= ~IRQS_PENDING; desc->istate |= IRQS_REPLAY; - if (!desc->irq_data.chip->irq_retrigger || - !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) { + if ((!desc->irq_data.chip->irq_retrigger || + !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) && + !handle_enforce_irqctx(&desc->irq_data)) { #ifdef CONFIG_HARDIRQS_SW_RESEND unsigned int irq = irq_desc_get_irq(desc); -- 2.25.1

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Re: Fwd: 网迅万兆网卡驱动合入openeuler-4.19内核申请
by Xie XiuQi 25 May '21

25 May '21

On 2021/5/21 9:27, zhenpengzheng(a)net-swift.com wrote: > 谢工， > > 您好，我最近忙另外的项目，没有协调到鲲鹏平台，刚跟测试协商，等他们用完了借给我，预计要下周了，如果改完了我提个patch给您。好的。另外，如果你协调到环境，建议也一起把驱动提交到 openEuler 5.10 版本。 5.10 版本是 openEuler 下一个长期维护版本。 > > regards, > zhenpeng > > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > > **************************************************************** > > 郑振鹏(zheng zhenpeng) > > 北京网迅科技有限公司杭州分公司软件工程师 > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > > Beijing WangXun Technology Co., Ltd. Software Engineer. > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > > > > Office: +86(0571)89807901-8014 > > Mobile: +86-13656681762 > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > > **************************************************************** > > > *发件人：* Xie XiuQi <mailto:xiexiuqi@huawei.com> > *发送时间：* 2021-05-19 21:36 > *收件人：* zhenpengzheng(a)net-swift.com <mailto:zhenpengzheng@net-swift.com> > *抄送：* Leizhen (ThunderTown) <mailto:thunder.leizhen@huawei.com>; liuyuan36 <mailto:liuyuan36@huawei.com>; Cheng Jian <mailto:cj.chengjian@huawei.com>; Libin (Huawei) <mailto:huawei.libin@huawei.com>; Yang Yingliang <mailto:yangyingliang@huawei.com>; Dukaitian, Intelligent Computing, <mailto:dukaitian@huawei.com>; " neil.yao"@huawei.com <mailto:@huawei.com>; neil.yao(a)huawei.com <mailto:neil.yao@huawei.com>; kernel\" <mailto:kernel@openeuler.org> > *主题：* Re: Fwd: 网迅万兆网卡驱动合入openeuler-4.19内核申请 > Hi zhenpeng, > > > On 2021/3/8 11:12, zhenpengzheng(a)net-swift.com wrote: > > > 适用arm64，但这份驱动我只在x86指令集的机器上测试过，我先改好，稍后安排ARM的适配测试。 > > 问下，网讯网卡驱动，之前说 ARM64 环境上会做测试，现在怎么样了， > ARM64 上可以 enable 了吗？ > > 谢谢 > > On 2021/3/25 22:12, Xie XiuQi wrote: > > Hi, > > > > On 2021/3/25 9:43, zhenpengzheng(a)net-swift.com wrote: > >> > >> to Leizhen, > >> > >> have these two patches been merged into kernel-4.19 and openEuler-1.0-LTS branches? > > > > This patch is in my queue and under testing, which would be merged before April 15. > > > > Thanks. > > > >> > >> regards, > >> zhenpeng > >> > >> > >> > >> > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > >> > >> **************************************************************** > >> > >> 郑振鹏(zheng zhenpeng) > >> > >> 北京网迅科技有限公司杭州分公司软件工程师 > >> > >> 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > >> > >> Beijing WangXun Technology Co., Ltd. Software Engineer. > >> > >> Room A507, HuaXing Times Square, No.478 West Wensan Road. > >> > >> West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > >> > >> > >> > >> Office: +86(0571)89807901-8014 > >> > >> Mobile: +86-13656681762 > >> > >> E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > >> > >> **************************************************************** > >> > >> > >> *发件人：* Xie XiuQi <mailto:xiexiuqi@huawei.com> > >> *发送时间：* 2021-03-12 16:22 > >> *收件人：* zhenpengzheng(a)net-swift.com <mailto:zhenpengzheng@net-swift.com>; Leizhen (ThunderTown) <mailto:thunder.leizhen@huawei.com> > >> *抄送：* liuyuan36 <mailto:liuyuan36@huawei.com>; Cheng Jian <mailto:cj.chengjian@huawei.com>; Libin (Huawei) <mailto:huawei.libin@huawei.com>; Yang Yingliang <mailto:yangyingliang@huawei.com>; Dukaitian (Dukaitian, Intelligent Computing R&D) <mailto:dukaitian@huawei.com>; neil.yao(a)huawei.com <mailto:neil.yao@huawei.com>; kernel(a)openeuler.org <mailto:kernel@openeuler.org> > >> *主题：* Re: Fwd: 网迅万兆网卡驱动合入openeuler-4.19内核申请 > >> For this series, > >> Acked-by: Xie XiuQi <xiexiuqi(a)huawei.com> > >> > >> @Leizhen, > >> > >> Please help to apply this two patches to kernel-4.19 & openEuler-1.0-LTS branches. > >> Thanks. > >> > >> On 2021/3/9 19:13, zhenpengzheng(a)net-swift.com wrote: > >> > to谢工， > >> > 已清理所有提交文件中“huawei” “intel” “HiNIC”等字样与本次提交无关的注释。 > >> > > >> > toLei工， > >> > 已删除所有提交文件末尾空行。 > >> > > >> > 谢谢大家的意见，附件为改动后最新的patch。 > >> > > >> > 振鹏 > >> > > >> > > >> > > >> > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > >> > > >> > **************************************************************** > >> > > >> > 郑振鹏(zheng zhenpeng) > >> > > >> > 北京网迅科技有限公司杭州分公司软件工程师 > >> > > >> > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > >> > > >> > Beijing WangXun Technology Co., Ltd. Software Engineer. > >> > > >> > Room A507, HuaXing Times Square, No.478 West Wensan Road. > >> > > >> > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > >> > > >> > > >> > > >> > Office: +86(0571)89807901-8014 > >> > > >> > Mobile: +86-13656681762 > >> > > >> > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > >> > > >> > **************************************************************** > >> > > >> > > >> > *发件人：* Leizhen (ThunderTown) <mailto:thunder.leizhen@huawei.com> > >> > *发送时间：* 2021-03-09 17:59 > >> > *收件人：* zhenpengzheng(a)net-swift.com <mailto:zhenpengzheng@net-swift.com>; Xie XiuQi <mailto:xiexiuqi@huawei.com> > >> > *抄送：* liuyuan36 <mailto:liuyuan36@huawei.com>; Cheng Jian <mailto:cj.chengjian@huawei.com>; Libin (Huawei) <mailto:huawei.libin@huawei.com>; Yang Yingliang <mailto:yangyingliang@huawei.com>; Dukaitian (Dukaitian, Intelligent Computing R&D) <mailto:dukaitian@huawei.com>; neil.yao(a)huawei.com <mailto:neil.yao@huawei.com> > >> > *主题：* Re: Fwd: 网迅万兆网卡驱动合入openeuler-4.19内核申请 > >> > > >> > > >> > On 2021/3/9 16:38, zhenpengzheng(a)net-swift.com wrote: > >> > > 谢工，lei工 > >> > > 您好，附件是我按照社区要求整改的patch，第一份较大的patch是不包含openeuler_config(x86)文件修改的驱动主代码，第二份patch仅含openeuler_config(x86)文件修改，arm的配置暂未修改，后续我尽快测完再发patch开启arm配置。 > >> > > > >> > > 针对社区反馈的问题1，我查过patch中确实存在一处告警所说明的违规（即指向patch90行那处），其余违规处对照后未发现异常，我检查过代码本身应无段尾出现空白的情况，不知道如何进一步确认patch是否合规，请在邮件中告知，谢谢。 > >> > drivers/net/ethernet/netswift/txgbe/txgbe_bp.h > >> > drivers/net/ethernet/netswift/txgbe/txgbe_ethtool.c > >> > drivers/net/ethernet/netswift/txgbe/txgbe_hw.c > >> > drivers/net/ethernet/netswift/txgbe/txgbe_lib.c > >> > drivers/net/ethernet/netswift/txgbe/txgbe_main.c > >> > drivers/net/ethernet/netswift/txgbe/txgbe_mtd.c > >> > drivers/net/ethernet/netswift/txgbe/txgbe_mtd.h > >> > > >> > 这个告警是文件末尾有空行。每个文件打开一下，shift+G到末尾check下就好了。 > >> > > >> > > > >> > > 振鹏 > >> > > > >> > > > >> > > > >> > > > >> > > >> > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > >> > > > >> > > **************************************************************** > >> > > > >> > > 郑振鹏(zheng zhenpeng) > >> > > > >> > > 北京网迅科技有限公司杭州分公司软件工程师 > >> > > > >> > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > >> > > > >> > > Beijing WangXun Technology Co., Ltd. Software Engineer. > >> > > > >> > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > >> > > > >> > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > >> > > > >> > > > >> > > > >> > > Office: +86(0571)89807901-8014 > >> > > > >> > > Mobile: +86-13656681762 > >> > > > >> > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > >> > > > >> > > **************************************************************** > >> > > > >> > > > >> > > *发件人：* Xie XiuQi <mailto:xiexiuqi@huawei.com> > >> > > *发送时间：* 2021-03-08 16:29 > >> > > *收件人：* zhenpengzheng(a)net-swift.com <mailto:zhenpengzheng@net-swift.com>; Leizhen (ThunderTown) <mailto:thunder.leizhen@huawei.com> > >> > > *抄送：* liuyuan36 <mailto:liuyuan36@huawei.com>; Cheng Jian <mailto:cj.chengjian@huawei.com>; Libin (Huawei) <mailto:huawei.libin@huawei.com>; Yang Yingliang <mailto:yangyingliang@huawei.com>; Dukaitian (Dukaitian, Intelligent Computing R&D) <mailto:dukaitian@huawei.com>; neil.yao(a)huawei.com <mailto:neil.yao@huawei.com> > >> > > *主题：* Re: Fwd: 网迅万兆网卡驱动合入openeuler-4.19内核申请 > >> > > Hi， > >> > > > >> > > On 2021/3/8 11:12, zhenpengzheng(a)net-swift.com wrote: > >> > > > 适用arm64，但这份驱动我只在x86指令集的机器上测试过，我先改好，稍后安排ARM的适配测试。 > >> > > > >> > > 好的，在 x86 上测试过，就先在 x86 上 enable 吧。 > >> > > ARM64 的测试过之后，可以再 enable。 > >> > > > >> > > > > >> > > > > >> > > > >> > > >> > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > >> > > > > >> > > > **************************************************************** > >> > > > > >> > > > 郑振鹏(zheng zhenpeng) > >> > > > > >> > > > 北京网迅科技有限公司杭州分公司软件工程师 > >> > > > > >> > > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > >> > > > > >> > > > Beijing WangXun Technology Co., Ltd. Software Engineer. > >> > > > > >> > > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > >> > > > > >> > > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > >> > > > > >> > > > > >> > > > > >> > > > Office: +86(0571)89807901-8014 > >> > > > > >> > > > Mobile: +86-13656681762 > >> > > > > >> > > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > >> > > > > >> > > > **************************************************************** > >> > > > > >> > > > > >> > > > *发件人：* Xie XiuQi <mailto:xiexiuqi@huawei.com> > >> > > > *发送时间：* 2021-03-08 10:30 > >> > > > *收件人：* zhenpengzheng(a)net-swift.com <mailto:zhenpengzheng@net-swift.com>; Leizhen (ThunderTown) <mailto:thunder.leizhen@huawei.com> > >> > > > *抄送：* liuyuan36 <mailto:liuyuan36@huawei.com>; Cheng Jian <mailto:cj.chengjian@huawei.com>; Libin (Huawei) <mailto:huawei.libin@huawei.com>; Yang Yingliang <mailto:yangyingliang@huawei.com>; Dukaitian (Dukaitian, Intelligent Computing R&D) <mailto:dukaitian@huawei.com>; neil.yao(a)huawei.com <mailto:neil.yao@huawei.com> > >> > > > *主题：* Re: Fwd: 网迅万兆网卡驱动合入openeuler-4.19内核申请 > >> > > > Hi, > >> > > > > >> > > > 网讯网卡驱动在 arm64 上也是适用的吧？ > >> > > > 是的话，arm64 的config，也打开吧。 > >> > > > > >> > > > arch/arm64/configs/openeuler_defconfig > >> > > > > >> > > > > >> > > > > >> > > > On 2021/3/8 9:42, zhenpengzheng(a)net-swift.com wrote: > >> > > > > 好的，对于问题2，我分割成两个patch再发一次，谢谢。 > >> > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > >> > > > > > >> > > > > **************************************************************** > >> > > > > > >> > > > > 郑振鹏(zheng zhenpeng) > >> > > > > > >> > > > > 北京网迅科技有限公司杭州分公司软件工程师 > >> > > > > > >> > > > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > >> > > > > > >> > > > > Beijing WangXun Technology Co., Ltd. Software Engineer. > >> > > > > > >> > > > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > >> > > > > > >> > > > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > >> > > > > > >> > > > > > >> > > > > > >> > > > > Office: +86(0571)89807901-8014 > >> > > > > > >> > > > > Mobile: +86-13656681762 > >> > > > > > >> > > > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > >> > > > > > >> > > > > **************************************************************** > >> > > > > > >> > > > > > >> > > > > *发件人：* Leizhen (ThunderTown) <mailto:thunder.leizhen@huawei.com> > >> > > > > *发送时间：* 2021-03-06 15:05 > >> > > > > *收件人：* Xie XiuQi <mailto:xiexiuqi@huawei.com>; 郑振鹏 <mailto:zhenpengzheng@net-swift.com> > >> > > > > *抄送：* Liuyuan (Compatibility, Cloud Infrastructure Service Product Dept.) <mailto:liuyuan36@huawei.com>; Cheng Jian <mailto:cj.chengjian@huawei.com>; Libin (Huawei) <mailto:huawei.libin@huawei.com>; Yang Yingliang <mailto:yangyingliang@huawei.com>; Dukaitian (Dukaitian, Intelligent Computing R&D) <mailto:dukaitian@huawei.com>; neil.yao(a)huawei.com <mailto:neil.yao@huawei.com> > >> > > > > *主题：* Re: Fwd: 网迅万兆网卡驱动合入openeuler-4.19内核申请 > >> > > > > Hi 振鹏， > >> > > > > 我review了一下补丁，有几个地方需要改进下： > >> > > > > > >> > > > > 1. git am补丁的时候会报几个warning，需要消除一下； > >> > > > > git am 0001-add-WangXun-XGIG-NIC-driver-for-EulerOS.patch > >>�� > > > > Applying: add WangXun XGIG NIC driver for EulerOS > >> > > > > .git/rebase-apply/patch:90: new blank line at EOF. > >> > > > > + > >> > > > > .git/rebase-apply/patch:2331: new blank line at EOF. > >> > > > > + > >> > > > > .git/rebase-apply/patch:5755: new blank line at EOF. > >> > > > > + > >> > > > > .git/rebase-apply/patch:12891: new blank line at EOF. > >> > > > > + > >> > > > > .git/rebase-apply/patch:14134: new blank line at EOF. > >> > > > > + > >> > > > > warning: squelched 3 whitespace errors > >> > > > > warning: 8 lines add whitespace errors. > >> > > > > 2. 对arch/x86/configs/openeuler_defconfig文件的修改，最好能拆分到一个独立的补丁中去。 > >> > > > > 3. txgbe_bp.c没有添加版权声明。 > >> > > > > 4. 其它#if 0、//注释掉的代码，最好能清掉。 > >> > > > > > >> > > > > > >> > > > > > >> > > > > On 2021/3/1 16:32, Xie XiuQi wrote: > >> > > > > > Hi 振鹏， > >> > > > > > > >> > > > > > Thanks for your patch, we'll review this patch, and give a feedback soon. > >> > > > > > > >> > > > > > --- > >> > > > > > Thanks, > >> > > > > > Xie XiuQi > >> > > > > > > >> > > > > > > >> > > > > > -------- Forwarded Message -------- > >> > > > > > Subject: 网迅万兆网卡驱动合入openeuler-4.19内核申请 > >> > > > > > Date: Mon, 1 Mar 2021 15:41:09 +0800 > >> > > > > > From: zhenpengzheng(a)net-swift.com <zhenpengzheng(a)net-swift.com> > >> > > > > > To: xiexiuqi <xiexiuqi(a)huawei.com>, liuyuan36 <liuyuan36(a)huawei.com> > >> > > > > > > >> > > > > > > >> > > > > > > >> > > > > > > >> > > > > > 谢工，刘工： > >> > > > > > > >> > > > > > 您好，我已准备好patch，见附件，patch已按照社区要求做checkpatch，报告的错误已消除，commit信息已更新。 > >> > > > > > > >> > > > > > 振鹏 > >> > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > >> > > > > > > >> > > > > > **************************************************************** > >> > > > > > > >> > > > > > 郑振鹏(zheng zhenpeng) > >> > > > > > > >> > > > > > 北京网迅科技有限公司杭州分公司软件工程师 > >> > > > > > > >> > > > > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > >> > > > > > > >> > > > > > Beijing WangXun Technology Co., Ltd. Software Engineer. > >> > > > > > > >> > > > > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > >> > > > > > > >> > > > > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > >> > > > > > > >> > > > > > > >> > > > > > > >> > > > > > Office: +86(0571)89807901-8014 > >> > > > > > > >> > > > > > Mobile: +86-13656681762 > >> > > > > > > >> > > > > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > >> > > > > > > >> > > > > > **************************************************************** > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > > _______________________________________________ > > Kernel mailing list -- kernel(a)openeuler.org > > To unsubscribe send an email to kernel-leave(a)openeuler.org > > >

1 0

[PATCH kernel-4.19 1/2] NFSv4.1: Don't rebind to the same source port when reconnecting to the server
by Yang Yingliang 25 May '21

25 May '21

From: Trond Myklebust <trond.myklebust(a)hammerspace.com> mainline inclusion from mainline-v5.5-rc1 commit e6237b6feb37582fbd6bd7a8336d1256a6b4b4f9 category: bugfix bugzilla: NA CVE: NA -------------------------------- NFSv2, v3 and NFSv4 servers often have duplicate replay caches that look at the source port when deciding whether or not an RPC call is a replay of a previous call. This requires clients to perform strange TCP gymnastics in order to ensure that when they reconnect to the server, they bind to the same source port. NFSv4.1 and NFSv4.2 have sessions that provide proper replay semantics, that do not look at the source port of the connection. This patch therefore ensures they can ignore the rebind requirement. Signed-off-by: Trond Myklebust <trond.myklebust(a)hammerspace.com> Conflicts: fs/lockd/host.c fs/nfs/client.c fs/nfs/nfs4client.c include/linux/nfs_fs_sb.h include/linux/sunrpc/clnt.h Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5(a)huawei.com> Reviewed-by: Yue Haibing <yuehaibing(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/lockd/host.c | 3 ++- fs/nfs/client.c | 3 +++ fs/nfs/nfs4client.c | 3 +++ include/linux/nfs_fs_sb.h | 1 + include/linux/sunrpc/clnt.h | 1 + include/linux/sunrpc/xprt.h | 3 ++- net/sunrpc/clnt.c | 7 ++++++- net/sunrpc/xprtsock.c | 2 +- 8 files changed, 19 insertions(+), 4 deletions(-) diff --git a/fs/lockd/host.c b/fs/lockd/host.c index 3f6ba0cd2bd9c..6d58f53555893 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -452,7 +452,8 @@ nlm_bind_host(struct nlm_host *host) .version = host->h_version, .authflavor = RPC_AUTH_UNIX, .flags = (RPC_CLNT_CREATE_NOPING | - RPC_CLNT_CREATE_AUTOBIND), + RPC_CLNT_CREATE_AUTOBIND | + RPC_CLNT_CREATE_REUSEPORT), }; /* diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 07c5ddd5d6d50..d25230de31364 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -522,6 +522,8 @@ int nfs_create_rpc_client(struct nfs_client *clp, args.flags |= RPC_CLNT_CREATE_NONPRIVPORT; if (test_bit(NFS_CS_INFINITE_SLOTS, &clp->cl_flags)) args.flags |= RPC_CLNT_CREATE_INFINITE_SLOTS; + if (test_bit(NFS_CS_REUSEPORT, &clp->cl_flags)) + args.flags |= RPC_CLNT_CREATE_REUSEPORT; if (!IS_ERR(clp->cl_rpcclient)) return 0; @@ -663,6 +665,7 @@ static int nfs_init_server(struct nfs_server *server, .proto = data->nfs_server.protocol, .net = data->net, .timeparms = &timeparms, + .init_flags = (1UL << NFS_CS_REUSEPORT), }; struct nfs_client *clp; int error; diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index faaabbedc891d..48a1892f05854 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -872,6 +872,9 @@ static int nfs4_set_client(struct nfs_server *server, }; struct nfs_client *clp; + if (minorversion == 0) + __set_bit(NFS_CS_REUSEPORT, &cl_init.init_flags); + if (server->flags & NFS_MOUNT_NORESVPORT) set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags); if (server->options & NFS_OPTION_MIGRATION) diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index bf39d9c92201f..7023ae64e3d7c 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -45,6 +45,7 @@ struct nfs_client { #define NFS_CS_INFINITE_SLOTS 3 /* - don't limit TCP slots */ #define NFS_CS_NO_RETRANS_TIMEOUT 4 /* - Disable retransmit timeouts */ #define NFS_CS_TSM_POSSIBLE 5 /* - Maybe state migration */ +#define NFS_CS_REUSEPORT 8 /* - reuse src port on reconnect */ struct sockaddr_storage cl_addr; /* server identifier */ size_t cl_addrlen; char * cl_hostname; /* hostname of server */ diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 73d5c4a870fae..60b6489e5ac1b 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -143,6 +143,7 @@ struct rpc_add_xprt_test { #define RPC_CLNT_CREATE_INFINITE_SLOTS (1UL << 7) #define RPC_CLNT_CREATE_NO_IDLE_TIMEOUT (1UL << 8) #define RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT (1UL << 9) +#define RPC_CLNT_CREATE_REUSEPORT (1UL << 11) struct rpc_clnt *rpc_create(struct rpc_create_args *args); struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *, diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 69fed13e633b7..36a944dda1957 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -200,7 +200,8 @@ struct rpc_xprt { unsigned int min_reqs; /* min number of slots */ unsigned int num_reqs; /* total slots */ unsigned long state; /* transport state */ - unsigned char resvport : 1; /* use a reserved port */ + unsigned char resvport : 1, /* use a reserved port */ + reuseport : 1; /* reuse port on reconnect */ atomic_t swapper; /* we're swapping over this transport */ unsigned int bind_index; /* bind function index */ diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 227bf32f2476b..9ac94c774335e 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -583,6 +583,9 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args) xprt->resvport = 1; if (args->flags & RPC_CLNT_CREATE_NONPRIVPORT) xprt->resvport = 0; + xprt->reuseport = 0; + if (args->flags & RPC_CLNT_CREATE_REUSEPORT) + xprt->reuseport = 1; return rpc_create_xprt(args, xprt); } @@ -2730,7 +2733,7 @@ int rpc_clnt_add_xprt(struct rpc_clnt *clnt, struct rpc_xprt *xprt; unsigned long connect_timeout; unsigned long reconnect_timeout; - unsigned char resvport; + unsigned char resvport, reuseport; int ret = 0; rcu_read_lock(); @@ -2742,6 +2745,7 @@ int rpc_clnt_add_xprt(struct rpc_clnt *clnt, return -EAGAIN; } resvport = xprt->resvport; + reuseport = xprt->reuseport; connect_timeout = xprt->connect_timeout; reconnect_timeout = xprt->max_reconnect_timeout; rcu_read_unlock(); @@ -2752,6 +2756,7 @@ int rpc_clnt_add_xprt(struct rpc_clnt *clnt, goto out_put_switch; } xprt->resvport = resvport; + xprt->reuseport = reuseport; if (xprt->ops->set_connect_timeout != NULL) xprt->ops->set_connect_timeout(xprt, connect_timeout, diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 60ebb402ba61f..f93d386ae9232 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1839,7 +1839,7 @@ static void xs_set_port(struct rpc_xprt *xprt, unsigned short port) static void xs_set_srcport(struct sock_xprt *transport, struct socket *sock) { - if (transport->srcport == 0) + if (transport->srcport == 0 && transport->xprt.reuseport) transport->srcport = xs_sock_getport(sock); } -- 2.25.1

1 1

[PATCH openEuler-1.0-LTS 1/5] genirq: Add protection against unsafe usage of generic_handle_irq()
by Yang Yingliang 24 May '21

24 May '21

From: Thomas Gleixner <tglx(a)linutronix.de> mainline inclusion from mainline-5.7 commit c16816acd08697b02a53f56f8936497a9f6f6e7a category: bugfix bugzilla: NA CVE: NA ------------------------------------------------- In general calling generic_handle_irq() with interrupts disabled from non interrupt context is harmless. For some interrupt controllers like the x86 trainwrecks this is outright dangerous as it might corrupt state if an interrupt affinity change is pending. Add infrastructure which allows to mark interrupts as unsafe and catch such usage in generic_handle_irq(). Reported-by: sathyanarayanan.kuppuswamy(a)linux.intel.com Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Acked-by: Marc Zyngier <maz(a)kernel.org> Link: https://lkml.kernel.org/r/20200306130623.590923677@linutronix.de Signed-off-by: Liao Chang <liaochang1(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- include/linux/irq.h | 13 +++++++++++++ kernel/irq/internals.h | 8 ++++++++ kernel/irq/irqdesc.c | 6 ++++++ kernel/irq/resend.c | 5 +++-- 4 files changed, 30 insertions(+), 2 deletions(-) diff --git a/include/linux/irq.h b/include/linux/irq.h index 014d5804c1b59..ca367d98a991e 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -210,6 +210,8 @@ struct irq_data { * IRQD_CAN_RESERVE - Can use reservation mode * IRQD_MSI_NOMASK_QUIRK - Non-maskable MSI quirk for affinity change * required + * IRQD_HANDLE_ENFORCE_IRQCTX - Enforce that handle_irq_*() is only invoked + * from actual interrupt context. * IRQD_AFFINITY_ON_ACTIVATE - Affinity is set on activation. Don't call * irq_chip::irq_set_affinity() when deactivated. */ @@ -235,6 +237,7 @@ enum { IRQD_DEFAULT_TRIGGER_SET = (1 << 25), IRQD_CAN_RESERVE = (1 << 26), IRQD_MSI_NOMASK_QUIRK = (1 << 27), + IRQD_HANDLE_ENFORCE_IRQCTX = (1 << 28), IRQD_AFFINITY_ON_ACTIVATE = (1 << 29), }; @@ -305,6 +308,16 @@ static inline bool irqd_is_single_target(struct irq_data *d) return __irqd_to_state(d) & IRQD_SINGLE_TARGET; } +static inline void irqd_set_handle_enforce_irqctx(struct irq_data *d) +{ + __irqd_to_state(d) |= IRQD_HANDLE_ENFORCE_IRQCTX; +} + +static inline bool irqd_is_handle_enforce_irqctx(struct irq_data *d) +{ + return __irqd_to_state(d) & IRQD_HANDLE_ENFORCE_IRQCTX; +} + static inline bool irqd_is_wakeup_set(struct irq_data *d) { return __irqd_to_state(d) & IRQD_WAKEUP_STATE; diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index ed4843df6220c..207bac6ad4c30 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -422,6 +422,10 @@ static inline struct cpumask *irq_desc_get_pending_mask(struct irq_desc *desc) { return desc->pending_mask; } +static inline bool handle_enforce_irqctx(struct irq_data *data) +{ + return irqd_is_handle_enforce_irqctx(data); +} bool irq_fixup_move_pending(struct irq_desc *desc, bool force_clear); #else /* CONFIG_GENERIC_PENDING_IRQ */ static inline bool irq_can_move_pcntxt(struct irq_data *data) @@ -448,6 +452,10 @@ static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear) { return false; } +static inline bool handle_enforce_irqctx(struct irq_data *data) +{ + return false; +} #endif /* !CONFIG_GENERIC_PENDING_IRQ */ #if !defined(CONFIG_IRQ_DOMAIN) || !defined(CONFIG_IRQ_DOMAIN_HIERARCHY) diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index dc4549fc71f95..ffdf02b01d816 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -633,9 +633,15 @@ void irq_init_desc(unsigned int irq) int generic_handle_irq(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); + struct irq_data *data; if (!desc) return -EINVAL; + + data = irq_desc_get_irq_data(desc); + if (WARN_ON_ONCE(!in_irq() && handle_enforce_irqctx(data))) + return -EPERM; + generic_handle_irq_desc(desc); return 0; } diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 98c04ca5fa43d..5064b13b80d60 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -72,8 +72,9 @@ void check_irq_resend(struct irq_desc *desc) desc->istate &= ~IRQS_PENDING; desc->istate |= IRQS_REPLAY; - if (!desc->irq_data.chip->irq_retrigger || - !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) { + if ((!desc->irq_data.chip->irq_retrigger || + !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) && + !handle_enforce_irqctx(&desc->irq_data)) { #ifdef CONFIG_HARDIRQS_SW_RESEND unsigned int irq = irq_desc_get_irq(desc); -- 2.25.1

1 4

[PATCH openEuler-1.0-LTS 1/5] genirq: Add protection against unsafe usage of generic_handle_irq()
by Yang Yingliang 24 May '21

24 May '21

From: Liao Chang <liaochang1(a)huawei.com> mainline inclusion from mainline-5.7 commit c16816acd08697b02a53f56f8936497a9f6f6e7a category: bugfix bugzilla: NA CVE: NA ------------------------------------------------- In general calling generic_handle_irq() with interrupts disabled from non interrupt context is harmless. For some interrupt controllers like the x86 trainwrecks this is outright dangerous as it might corrupt state if an interrupt affinity change is pending. Add infrastructure which allows to mark interrupts as unsafe and catch such usage in generic_handle_irq(). Reported-by: sathyanarayanan.kuppuswamy(a)linux.intel.com Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Acked-by: Marc Zyngier <maz(a)kernel.org> Link: https://lkml.kernel.org/r/20200306130623.590923677@linutronix.de Signed-off-by: Liao Chang <liaochang1(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- include/linux/irq.h | 13 +++++++++++++ kernel/irq/internals.h | 8 ++++++++ kernel/irq/irqdesc.c | 6 ++++++ kernel/irq/resend.c | 5 +++-- 4 files changed, 30 insertions(+), 2 deletions(-) diff --git a/include/linux/irq.h b/include/linux/irq.h index 014d5804c1b59..ca367d98a991e 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -210,6 +210,8 @@ struct irq_data { * IRQD_CAN_RESERVE - Can use reservation mode * IRQD_MSI_NOMASK_QUIRK - Non-maskable MSI quirk for affinity change * required + * IRQD_HANDLE_ENFORCE_IRQCTX - Enforce that handle_irq_*() is only invoked + * from actual interrupt context. * IRQD_AFFINITY_ON_ACTIVATE - Affinity is set on activation. Don't call * irq_chip::irq_set_affinity() when deactivated. */ @@ -235,6 +237,7 @@ enum { IRQD_DEFAULT_TRIGGER_SET = (1 << 25), IRQD_CAN_RESERVE = (1 << 26), IRQD_MSI_NOMASK_QUIRK = (1 << 27), + IRQD_HANDLE_ENFORCE_IRQCTX = (1 << 28), IRQD_AFFINITY_ON_ACTIVATE = (1 << 29), }; @@ -305,6 +308,16 @@ static inline bool irqd_is_single_target(struct irq_data *d) return __irqd_to_state(d) & IRQD_SINGLE_TARGET; } +static inline void irqd_set_handle_enforce_irqctx(struct irq_data *d) +{ + __irqd_to_state(d) |= IRQD_HANDLE_ENFORCE_IRQCTX; +} + +static inline bool irqd_is_handle_enforce_irqctx(struct irq_data *d) +{ + return __irqd_to_state(d) & IRQD_HANDLE_ENFORCE_IRQCTX; +} + static inline bool irqd_is_wakeup_set(struct irq_data *d) { return __irqd_to_state(d) & IRQD_WAKEUP_STATE; diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index ed4843df6220c..207bac6ad4c30 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -422,6 +422,10 @@ static inline struct cpumask *irq_desc_get_pending_mask(struct irq_desc *desc) { return desc->pending_mask; } +static inline bool handle_enforce_irqctx(struct irq_data *data) +{ + return irqd_is_handle_enforce_irqctx(data); +} bool irq_fixup_move_pending(struct irq_desc *desc, bool force_clear); #else /* CONFIG_GENERIC_PENDING_IRQ */ static inline bool irq_can_move_pcntxt(struct irq_data *data) @@ -448,6 +452,10 @@ static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear) { return false; } +static inline bool handle_enforce_irqctx(struct irq_data *data) +{ + return false; +} #endif /* !CONFIG_GENERIC_PENDING_IRQ */ #if !defined(CONFIG_IRQ_DOMAIN) || !defined(CONFIG_IRQ_DOMAIN_HIERARCHY) diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index dc4549fc71f95..ffdf02b01d816 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -633,9 +633,15 @@ void irq_init_desc(unsigned int irq) int generic_handle_irq(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); + struct irq_data *data; if (!desc) return -EINVAL; + + data = irq_desc_get_irq_data(desc); + if (WARN_ON_ONCE(!in_irq() && handle_enforce_irqctx(data))) + return -EPERM; + generic_handle_irq_desc(desc); return 0; } diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 98c04ca5fa43d..5064b13b80d60 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -72,8 +72,9 @@ void check_irq_resend(struct irq_desc *desc) desc->istate &= ~IRQS_PENDING; desc->istate |= IRQS_REPLAY; - if (!desc->irq_data.chip->irq_retrigger || - !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) { + if ((!desc->irq_data.chip->irq_retrigger || + !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) && + !handle_enforce_irqctx(&desc->irq_data)) { #ifdef CONFIG_HARDIRQS_SW_RESEND unsigned int irq = irq_desc_get_irq(desc); -- 2.25.1

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[PATCH openEuler-1.0-LTS 1/3] jbd2: remove the out label in __jbd2_journal_remove_checkpoint()
by Yang Yingliang 24 May '21

24 May '21

From: Zhang Yi <yi.zhang(a)huawei.com> hulk inclusion category: bugfix bugzilla: 50788 CVE: NA --------------------------- The 'out' lable just return the 'ret' value and seems not required, so remove this label and switch to return appropriate value immediately. This patch also do some minor cleanup, no logical change. Signed-off-by: Zhang Yi <yi.zhang(a)huawei.com> Reviewed-by: Jan Kara <jack(a)suse.cz> Reviewed-by: Zhang Xiaoxu <zhangxiaoxu5(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/jbd2/checkpoint.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index 96bf33986d030..61de87fbf5ec3 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -562,13 +562,13 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh) struct transaction_chp_stats_s *stats; transaction_t *transaction; journal_t *journal; - int ret = 0; JBUFFER_TRACE(jh, "entry"); - if ((transaction = jh->b_cp_transaction) == NULL) { + transaction = jh->b_cp_transaction; + if (!transaction) { JBUFFER_TRACE(jh, "not on transaction"); - goto out; + return 0; } journal = transaction->t_journal; @@ -577,9 +577,9 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh) jh->b_cp_transaction = NULL; jbd2_journal_put_journal_head(jh); - if (transaction->t_checkpoint_list != NULL || - transaction->t_checkpoint_io_list != NULL) - goto out; + /* Is this transaction empty? */ + if (transaction->t_checkpoint_list || transaction->t_checkpoint_io_list) + return 0; /* * There is one special case to worry about: if we have just pulled the @@ -591,10 +591,12 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh) * See the comment at the end of jbd2_journal_commit_transaction(). */ if (transaction->t_state != T_FINISHED) - goto out; + return 0; - /* OK, that was the last buffer for the transaction: we can now - safely remove this transaction from the log */ + /* + * OK, that was the last buffer for the transaction, we can now + * safely remove this transaction from the log. + */ stats = &transaction->t_chp_stats; if (stats->cs_chp_time) stats->cs_chp_time = jbd2_time_diff(stats->cs_chp_time, @@ -604,9 +606,7 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh) __jbd2_journal_drop_transaction(journal, transaction); jbd2_journal_free_transaction(transaction); - ret = 1; -out: - return ret; + return 1; } /* -- 2.25.1

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