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[PATCH kernel-4.19 1/4] ext4: Fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed
by Yang Yingliang 25 Mar '21

25 Mar '21

From: Ye Bin <yebin10(a)huawei.com> hulk inclusion category: bugfix bugzilla: 50785 CVE: NA ----------------------------------------------- We got follow bug_on: [130747.323114] kernel BUG at fs/ext4/extents_status.c:762! [130747.323117] Internal error: Oops - BUG: 0 [#1] SMP ...... [130747.334329] Call trace: [130747.334553] ext4_es_cache_extent+0x150/0x168 [ext4] [130747.334975] ext4_cache_extents+0x64/0xe8 [ext4] [130747.335368] ext4_find_extent+0x300/0x330 [ext4] [130747.335759] ext4_ext_map_blocks+0x74/0x1178 [ext4] [130747.336179] ext4_map_blocks+0x2f4/0x5f0 [ext4] [130747.336567] ext4_mpage_readpages+0x4a8/0x7a8 [ext4] [130747.336995] ext4_readpage+0x54/0x100 [ext4] [130747.337359] generic_file_buffered_read+0x410/0xae8 [130747.337767] generic_file_read_iter+0x114/0x190 [130747.338152] ext4_file_read_iter+0x5c/0x140 [ext4] [130747.338556] __vfs_read+0x11c/0x188 [130747.338851] vfs_read+0x94/0x150 [130747.339110] ksys_read+0x74/0xf0 If call ext4_ext_insert_extent failed but new extent already inserted, we just update "ex->ee_len = orig_ex.ee_len", this will lead to extent overlap, then cause bug on when cache extent. Signed-off-by: Ye Bin <yebin10(a)huawei.com> Reviewed-by: zhangyi (F) <yi.zhang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/ext4/extents.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index ebf024258e3c2..3bc2cb4cc5cc5 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3331,7 +3331,7 @@ static int ext4_split_extent_at(handle_t *handle, goto out; } else if (err) - goto fix_extent_len; + goto err; out: ext4_ext_show_leaf(inode, path); @@ -3339,6 +3339,7 @@ static int ext4_split_extent_at(handle_t *handle, fix_extent_len: ex->ee_len = orig_ex.ee_len; +err: ext4_ext_dirty(handle, inode, path + path->p_depth); return err; } -- 2.25.1

1 3

[PATCH openEuler-21.03] arm64: amend config position of park and pmem
by sangyan＠huawei.com 24 Mar '21

24 Mar '21

From: Sang Yan <sangyan(a)huawei.com> hulk inclusion category: feature bugzilla: 48159 CVE: N/A ------------------------------ Move config of ARM64_CPU_PARK into menu "Kernel features" and beside CRASH_DUMP. Move config of ARM64_PMEM_RESERVE ARM64_PMEM_LEGACY_DEVICE into menu "Kernel features". Signed-off-by: Sang Yan <sangyan(a)huawei.com> --- arch/arm64/Kconfig | 66 +++++++++++++++++----------------- arch/arm64/configs/openeuler_defconfig | 6 ++-- 2 files changed, 36 insertions(+), 36 deletions(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 326f26d..72c7ce3 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -345,42 +345,9 @@ config KASAN_SHADOW_OFFSET default 0xeffffff900000000 if ARM64_VA_BITS_36 && KASAN_SW_TAGS default 0xffffffffffffffff -config ARM64_CPU_PARK - bool "Support CPU PARK on kexec" - depends on SMP - depends on KEXEC_CORE - help - This enables support for CPU PARK feature in - order to save time of cpu down to up. - CPU park is a state through kexec, spin loop - instead of cpu die before jumping to new kernel, - jumping out from loop to new kernel entry in - smp_init. - config ARCH_HAS_CPU_RELAX def_bool y -config ARM64_PMEM_RESERVE - bool "Reserve memory for persistent storage" - default n - help - Use memmap=nn[KMG]!ss[KMG](memmap=100K!0x1a0000000) reserve - memory for persistent storage. - - Say y here to enable this feature. - -config ARM64_PMEM_LEGACY_DEVICE - bool "Create persistent storage" - depends on BLK_DEV - depends on LIBNVDIMM - select ARM64_PMEM_RESERVE - help - Use reserved memory for persistent storage when the kernel - restart or update. the data in PMEM will not be lost and - can be loaded faster. - - Say y if unsure. - source "arch/arm64/Kconfig.platforms" menu "Kernel Features" @@ -1196,6 +1163,18 @@ config CRASH_DUMP For more details see Documentation/admin-guide/kdump/kdump.rst +config ARM64_CPU_PARK + bool "Support CPU PARK on kexec" + depends on SMP + depends on KEXEC_CORE + help + This enables support for CPU PARK feature in + order to save time of cpu down to up. + CPU park is a state through kexec, spin loop + instead of cpu die before jumping to new kernel, + jumping out from loop to new kernel entry in + smp_init. + config XEN_DOM0 def_bool y depends on XEN @@ -1257,6 +1236,27 @@ config RODATA_FULL_DEFAULT_ENABLED This requires the linear region to be mapped down to pages, which may adversely affect performance in some cases. +config ARM64_PMEM_RESERVE + bool "Reserve memory for persistent storage" + default n + help + Use memmap=nn[KMG]!ss[KMG](memmap=100K!0x1a0000000) reserve + memory for persistent storage. + + Say y here to enable this feature. + +config ARM64_PMEM_LEGACY_DEVICE + bool "Create persistent storage" + depends on BLK_DEV + depends on LIBNVDIMM + select ARM64_PMEM_RESERVE + help + Use reserved memory for persistent storage when the kernel + restart or update. the data in PMEM will not be lost and + can be loaded faster. + + Say y if unsure. + config ARM64_SW_TTBR0_PAN bool "Emulate Privileged Access Never using TTBR0_EL1 switching" help diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 21c5d11..1aedaf3 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -275,9 +275,6 @@ CONFIG_FIX_EARLYCON_MEM=y CONFIG_PGTABLE_LEVELS=3 CONFIG_ARCH_SUPPORTS_UPROBES=y CONFIG_ARCH_PROC_KCORE_TEXT=y -CONFIG_ARM64_CPU_PARK=y -CONFIG_ARM64_PMEM_RESERVE=y -CONFIG_ARM64_PMEM_LEGACY_DEVICE=y # # Platform selection @@ -407,10 +404,13 @@ CONFIG_PARAVIRT_TIME_ACCOUNTING=y CONFIG_KEXEC=y # CONFIG_KEXEC_FILE is not set CONFIG_CRASH_DUMP=y +CONFIG_ARM64_CPU_PARK=y # CONFIG_XEN is not set CONFIG_FORCE_MAX_ZONEORDER=14 CONFIG_UNMAP_KERNEL_AT_EL0=y CONFIG_RODATA_FULL_DEFAULT_ENABLED=y +CONFIG_ARM64_PMEM_RESERVE=y +CONFIG_ARM64_PMEM_LEGACY_DEVICE=y # CONFIG_ARM64_SW_TTBR0_PAN is not set CONFIG_ARM64_TAGGED_ADDR_ABI=y CONFIG_ARM64_ILP32=y -- 2.9.5

2 1

[PATCH kernel-4.19] scsi: ses: Fix crash caused by kfree an invalid pointer
by Ding Hui 23 Mar '21

23 Mar '21

driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I3BNT6 CVE: NA ----------------------------------------------- We can get a crash when disconnecting the iSCSI session, the call trace like this: [ffff00002a00fb70] kfree at ffff00000830e224 [ffff00002a00fba0] ses_intf_remove at ffff000001f200e4 [ffff00002a00fbd0] device_del at ffff0000086b6a98 [ffff00002a00fc50] device_unregister at ffff0000086b6d58 [ffff00002a00fc70] __scsi_remove_device at ffff00000870608c [ffff00002a00fca0] scsi_remove_device at ffff000008706134 [ffff00002a00fcc0] __scsi_remove_target at ffff0000087062e4 [ffff00002a00fd10] scsi_remove_target at ffff0000087064c0 [ffff00002a00fd70] __iscsi_unbind_session at ffff000001c872c4 [ffff00002a00fdb0] process_one_work at ffff00000810f35c [ffff00002a00fe00] worker_thread at ffff00000810f648 [ffff00002a00fe70] kthread at ffff000008116e98 In ses_intf_add, components count could be 0, and kcalloc 0 size scomp, but not saved in edev->component[i].scratch In this situation, edev->component[0].scratch is an invalid pointer, when kfree it in ses_intf_remove_enclosure, a crash like above would happen The call trace also could be other random cases when kfree cannot catch the invalid pointer We should not use edev->component[] array when the components count is 0 We also need check index when use edev->component[] array in ses_enclosure_data_process Another fix option is report error and do not attach in ses_intf_add if we meet a zero component enclosure Tested-by: Zeng Zhicong <timmyzeng(a)163.com> Signed-off-by: Ding Hui <dinghui(a)sangfor.com.cn> --- drivers/scsi/ses.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 0fc39224ce1e..63764fe0b34f 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -493,9 +493,6 @@ static int ses_enclosure_find_by_addr(struct enclosure_device *edev, int i; struct ses_component *scomp; - if (!edev->component[0].scratch) - return 0; - for (i = 0; i < edev->components; i++) { scomp = edev->component[i].scratch; if (scomp->addr != efd->addr) @@ -581,8 +578,10 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, components++, type_ptr[0], name); - else + else if (components < edev->components) ecomp = &edev->component[components++]; + else + ecomp = ERR_PTR(-EINVAL); if (!IS_ERR(ecomp)) { if (addl_desc_ptr) @@ -747,9 +746,11 @@ static int ses_intf_add(struct device *cdev, buf = NULL; } page2_not_supported: - scomp = kcalloc(components, sizeof(struct ses_component), GFP_KERNEL); - if (!scomp) - goto err_free; + if (components > 0) { + scomp = kcalloc(components, sizeof(struct ses_component), GFP_KERNEL); + if (!scomp) + goto err_free; + } edev = enclosure_register(cdev->parent, dev_name(&sdev->sdev_gendev), components, &ses_enclosure_callbacks); @@ -829,7 +830,8 @@ static void ses_intf_remove_enclosure(struct scsi_device *sdev) kfree(ses_dev->page2); kfree(ses_dev); - kfree(edev->component[0].scratch); + if (edev->components > 0) + kfree(edev->component[0].scratch); put_device(&edev->edev); enclosure_unregister(edev); -- 2.17.1

1 0

[PATCH] scsi: ses: Fix crash caused by kfree an invalid pointer
by Ding Hui 23 Mar '21

23 Mar '21

driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I3BNT6 CVE: NA ----------------------------------------------- We can get a crash when disconnecting the iSCSI session, the call trace like this: [ffff00002a00fb70] kfree at ffff00000830e224 [ffff00002a00fba0] ses_intf_remove at ffff000001f200e4 [ffff00002a00fbd0] device_del at ffff0000086b6a98 [ffff00002a00fc50] device_unregister at ffff0000086b6d58 [ffff00002a00fc70] __scsi_remove_device at ffff00000870608c [ffff00002a00fca0] scsi_remove_device at ffff000008706134 [ffff00002a00fcc0] __scsi_remove_target at ffff0000087062e4 [ffff00002a00fd10] scsi_remove_target at ffff0000087064c0 [ffff00002a00fd70] __iscsi_unbind_session at ffff000001c872c4 [ffff00002a00fdb0] process_one_work at ffff00000810f35c [ffff00002a00fe00] worker_thread at ffff00000810f648 [ffff00002a00fe70] kthread at ffff000008116e98 In ses_intf_add, components count could be 0, and kcalloc 0 size scomp, but not saved in edev->component[i].scratch In this situation, edev->component[0].scratch is an invalid pointer, when kfree it in ses_intf_remove_enclosure, a crash like above would happen The call trace also could be other random cases when kfree cannot catch the invalid pointer We should not use edev->component[] array when the components count is 0 We also need check index when use edev->component[] array in ses_enclosure_data_process Another fix option is report error and do not attach in ses_intf_add if we meet a zero component enclosure Tested-by: Zeng Zhicong <timmyzeng(a)163.com> Signed-off-by: Ding Hui <dinghui(a)sangfor.com.cn> --- drivers/scsi/ses.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 0fc39224ce1e..63764fe0b34f 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -493,9 +493,6 @@ static int ses_enclosure_find_by_addr(struct enclosure_device *edev, int i; struct ses_component *scomp; - if (!edev->component[0].scratch) - return 0; - for (i = 0; i < edev->components; i++) { scomp = edev->component[i].scratch; if (scomp->addr != efd->addr) @@ -581,8 +578,10 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, components++, type_ptr[0], name); - else + else if (components < edev->components) ecomp = &edev->component[components++]; + else + ecomp = ERR_PTR(-EINVAL); if (!IS_ERR(ecomp)) { if (addl_desc_ptr) @@ -747,9 +746,11 @@ static int ses_intf_add(struct device *cdev, buf = NULL; } page2_not_supported: - scomp = kcalloc(components, sizeof(struct ses_component), GFP_KERNEL); - if (!scomp) - goto err_free; + if (components > 0) { + scomp = kcalloc(components, sizeof(struct ses_component), GFP_KERNEL); + if (!scomp) + goto err_free; + } edev = enclosure_register(cdev->parent, dev_name(&sdev->sdev_gendev), components, &ses_enclosure_callbacks); @@ -829,7 +830,8 @@ static void ses_intf_remove_enclosure(struct scsi_device *sdev) kfree(ses_dev->page2); kfree(ses_dev); - kfree(edev->component[0].scratch); + if (edev->components > 0) + kfree(edev->component[0].scratch); put_device(&edev->edev); enclosure_unregister(edev); -- 2.17.1

1 0

[PATCH openEuler-1.0-LTS 00/33] bugfix for openEuler-20.03 @20210322
by Cheng Jian 22 Mar '21

22 Mar '21

bugfix for openEuler-20.03 @20210322 Guoqing Jiang (1): md: add checkings before flush md_misc_wq Jan Kara (14): ext4: remove redundant sb checksum recomputation ext4: standardize error message in ext4_protect_reserved_inode() ext4: make ext4_abort() use __ext4_error() ext4: move functions in super.c ext4: simplify ext4 error translation ext4: defer saving error info from atomic context ext4: combine ext4_handle_error() and save_error_info() ext4: drop sync argument of ext4_commit_super() ext4: protect superblock modifications with a buffer lock ext4: save error info to sb through journal if available ext4: use sbi instead of EXT4_SB(sb) in ext4_update_super() ext4: drop ext4_handle_dirty_super() quota: Sanity-check quota file headers on load quota: Fix memory leak when handling corrupted quota file Jason Yan (3): ext4: remove set but not used variable 'es' ext4: remove set but not used variable 'es' in ext4_jbd2.c scsi: check the whole result for reading write protect flag Li Huafei (1): perf/ftrace: Fix use-after-free in __ftrace_ops_list_func() Mikulas Patocka (1): dm: use noio when sending kobject event Paolo Valente (5): block, bfq: get extra ref to prevent a queue from being freed during a group move block, bfq: move forward the getting of an extra ref in bfq_bfqq_move block, bfq: turn put_queue into release_process_ref in __bfq_bic_change_cgroup block, bfq: make reparent_leaf_entity actually work only on leaf entities block, bfq: invoke flush_idle_tree after reparent_active_queues in pd_offline Theodore Ts'o (4): ext4: save the error code which triggered an ext4_error() in the superblock ext4: save all error info in save_error_info() and drop ext4_set_errno() ext4: don't try to processed freed blocks until mballoc is initialized ext4: fix potential htree index checksum corruption Ye Bin (2): Revert "ext4: Protect superblock modifications with a buffer lock" ext4: Fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed Yu Kuai (1): fs/xfs: fix time overflow Zhang Ming (1): arm64/mpam: fix a memleak in add_schema arch/arm64/kernel/mpam/mpam_ctrlmon.c | 1 + block/bfq-cgroup.c | 102 ++++-- drivers/md/dm.c | 15 +- drivers/md/md.c | 6 +- drivers/scsi/sd.c | 6 +- fs/ext4/balloc.c | 6 +- fs/ext4/block_validity.c | 12 +- fs/ext4/ext4.h | 102 ++++-- fs/ext4/ext4_jbd2.c | 31 +- fs/ext4/ext4_jbd2.h | 5 - fs/ext4/extents.c | 29 +- fs/ext4/file.c | 4 +- fs/ext4/ialloc.c | 11 +- fs/ext4/indirect.c | 2 +- fs/ext4/inline.c | 11 +- fs/ext4/inode.c | 32 +- fs/ext4/mballoc.c | 17 +- fs/ext4/mmp.c | 13 +- fs/ext4/move_extent.c | 4 +- fs/ext4/namei.c | 31 +- fs/ext4/resize.c | 16 +- fs/ext4/super.c | 446 ++++++++++++++++---------- fs/ext4/xattr.c | 16 +- fs/quota/quota_v2.c | 24 ++ fs/xfs/libxfs/xfs_format.h | 12 + fs/xfs/xfs_iops.c | 17 +- include/scsi/scsi.h | 13 + kernel/events/core.c | 2 + 28 files changed, 629 insertions(+), 357 deletions(-) -- 2.25.1

1 33

[PATCH OLK-5.10 0/2] disable write same for megaraid_sas
by Yufen Yu 20 Mar '21

20 Mar '21

Yufen Yu (2): Revert "scsi: megaraid_sas: Replace undefined MFI_BIG_ENDIAN macro with __BIG_ENDIAN_BITFIELD macro" Revert "scsi: megaraid_sas: Set no_write_same only for Virtual Disk" drivers/scsi/megaraid/megaraid_sas.h | 4 ++-- drivers/scsi/megaraid/megaraid_sas_base.c | 5 +---- drivers/scsi/megaraid/megaraid_sas_fusion.h | 21 +++++---------------- 3 files changed, 8 insertions(+), 22 deletions(-) -- 2.25.4

2 3

[PATCH OLK-5.10] fbdev: keep the original function for non-RPi
by Zheng Zengkai 19 Mar '21

19 Mar '21

raspberrypi inclusion category: feature bugzilla: 50432 ------------------------------ This patch adjusts following fbdev related patches for raspberry pi on non-Raspberry Pi platforms, using specific config CONFIG_OPENEULER_RASPBERRYPI to distinguish them: 29df1382f6 Speed up console framebuffer imageblit function Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- drivers/video/fbdev/core/cfbimgblt.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/video/fbdev/core/cfbimgblt.c b/drivers/video/fbdev/core/cfbimgblt.c index 436494fba15a..fb0e9cc0a0ba 100644 --- a/drivers/video/fbdev/core/cfbimgblt.c +++ b/drivers/video/fbdev/core/cfbimgblt.c @@ -266,7 +266,8 @@ static inline void fast_imageblit(const struct fb_image *image, struct fb_info * s += spitch; } } - + +#ifdef CONFIG_OPENEULER_RASPBERRYPI /* * Optimized fast_imageblit for bpp == 16. ppw = 2, bit_mask = 3 folded * into the code, main loop unrolled. @@ -393,6 +394,7 @@ static inline void fast_imageblit32(const struct fb_image *image, s += spitch; } } +#endif void cfb_imageblit(struct fb_info *p, const struct fb_image *image) { @@ -425,7 +427,8 @@ void cfb_imageblit(struct fb_info *p, const struct fb_image *image) fgcolor = image->fg_color; bgcolor = image->bg_color; } - + +#ifdef CONFIG_OPENEULER_RASPBERRYPI if (!start_index && !pitch_index) { if (bpp == 32) fast_imageblit32(image, p, dst1, fgcolor, @@ -441,6 +444,13 @@ void cfb_imageblit(struct fb_info *p, const struct fb_image *image) bgcolor, start_index, pitch_index); } else +#else + if (32 % bpp == 0 && !start_index && !pitch_index && + ((width & (32/bpp-1)) == 0) && + bpp >= 8 && bpp <= 32) + fast_imageblit(image, p, dst1, fgcolor, bgcolor); + else +#endif slow_imageblit(image, p, dst1, fgcolor, bgcolor, start_index, pitch_index); } else -- 2.20.1

2 1

[PATCH OLK-5.10] x86: config: disable CONFIG_BOOTPARAM_HOTPLUG_CPU0 by default
by Zheng Zengkai 18 Mar '21

18 Mar '21

hulk inclusion category: config bugzilla: 50784 CVE: NA --------------------------- Disable CONFIG_BOOTPARAM_HOTPLUG_CPU0 for x86 openeuler_defconfig by default. Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- arch/x86/configs/openeuler_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index c310e38fd6e7..addf175482e5 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -460,7 +460,7 @@ CONFIG_DYNAMIC_MEMORY_LAYOUT=y CONFIG_RANDOMIZE_MEMORY=y CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa CONFIG_HOTPLUG_CPU=y -CONFIG_BOOTPARAM_HOTPLUG_CPU0=y +CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set # CONFIG_DEBUG_HOTPLUG_CPU0 is not set # CONFIG_COMPAT_VDSO is not set CONFIG_LEGACY_VSYSCALL_EMULATE=y -- 2.20.1

2 1

[PATCH kernel-4.19] moduleparam: Save information about built-in modules in separate file
by Zhichang Yuan 18 Mar '21

18 Mar '21

From: Alexey Gladkov <gladkov.alexey(a)gmail.com> From: Alexey Gladkov <gladkov.alexey(a)gmail.com> mainline inclusion from mainline-v5.2-rc1 commit 898490c010b5d2e499e03b7e815fc214209ac583 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I390TB CVE: NA Backporting this patch is to fix an issue happened when the 5.10 kernel is building on openEuler 20.03 system. In openEuler 20.03 system, some modules ware built-in kernel. But in 5.10 kernel, those corresponding modules will be built as KO. For built-in kernel, kmode 2.7+ will fetch the modinfo from modules.builtin.modinfo which is only supported in kernel 5.2+. In the rpmbuild process, kernel spec will call kmod to query modinfo of the KO images. It will fail for 'file missing'. With backporting the mainline commit below, kmod can fetch any module's information from the corresponding module image or modules.builtin.modinfo. --------------------------- commit 898490c010b5d2e499e03b7e815fc214209ac583 upstream. Problem: When a kernel module is compiled as a separate module, some important information about the kernel module is available via .modinfo section of the module. In contrast, when the kernel module is compiled into the kernel, that information is not available. Information about built-in modules is necessary in the following cases: 1. When it is necessary to find out what additional parameters can be passed to the kernel at boot time. 2. When you need to know which module names and their aliases are in the kernel. This is very useful for creating an initrd image. Proposal: The proposed patch does not remove .modinfo section with module information from the vmlinux at the build time and saves it into a separate file after kernel linking. So, the kernel does not increase in size and no additional information remains in it. Information is stored in the same format as in the separate modules (null-terminated string array). Because the .modinfo section is already exported with a separate modules, we are not creating a new API. It can be easily read in the userspace: $ tr '\0' '\n' < modules.builtin.modinfo ext4.softdep=pre: crc32c ext4.license=GPL ext4.description=Fourth Extended Filesystem ext4.author=Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others ext4.alias=fs-ext4 ext4.alias=ext3 ext4.alias=fs-ext3 ext4.alias=ext2 ext4.alias=fs-ext2 md_mod.alias=block-major-9-* md_mod.alias=md md_mod.description=MD RAID framework md_mod.license=GPL md_mod.parmtype=create_on_open:bool md_mod.parmtype=start_dirty_degraded:int ... Co-Developed-by: Gleb Fotengauer-Malinovskiy <glebfm(a)altlinux.org> Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm(a)altlinux.org> Signed-off-by: Alexey Gladkov <gladkov.alexey(a)gmail.com> Acked-by: Jessica Yu <jeyu(a)kernel.org> Signed-off-by: Masahiro Yamada <yamada.masahiro(a)socionext.com> Signed-off-by: Zhichang Yuan <erik.yuan(a)arm.com> --- .gitignore | 1 + Documentation/dontdiff | 1 + Documentation/kbuild/kbuild.txt | 5 +++++ Makefile | 2 ++ include/asm-generic/vmlinux.lds.h | 1 + include/linux/module.h | 1 + include/linux/moduleparam.h | 12 +++++------- scripts/link-vmlinux.sh | 3 +++ 8 files changed, 19 insertions(+), 7 deletions(-) diff --git a/.gitignore b/.gitignore index 97ba6b79834c..e18bc625d330 100644 --- a/.gitignore +++ b/.gitignore @@ -57,6 +57,7 @@ modules.builtin /vmlinuz /System.map /Module.markers +/modules.builtin.modinfo # # RPM spec file (make rpm-pkg) diff --git a/Documentation/dontdiff b/Documentation/dontdiff index 2228fcc8e29f..3d4d5a402b8b 100644 --- a/Documentation/dontdiff +++ b/Documentation/dontdiff @@ -179,6 +179,7 @@ mktables mktree modpost modules.builtin +modules.builtin.modinfo modules.order modversions.h* nconf diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt index 8390c360d4b3..7f48e48f3fd2 100644 --- a/Documentation/kbuild/kbuild.txt +++ b/Documentation/kbuild/kbuild.txt @@ -11,6 +11,11 @@ modules.builtin This file lists all modules that are built into the kernel. This is used by modprobe to not fail when trying to load something builtin. +modules.builtin.modinfo +-------------------------------------------------- +This file contains modinfo from all modules that are built into the kernel. +Unlike modinfo of a separate module, all fields are prefixed with module name. + Environment variables diff --git a/Makefile b/Makefile index 8f326d0652a7..f19982d051d0 100644 --- a/Makefile +++ b/Makefile @@ -1294,6 +1294,7 @@ _modinst_: fi @cp -f $(objtree)/modules.order $(MODLIB)/ @cp -f $(objtree)/modules.builtin $(MODLIB)/ + @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/ $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst # This depmod is only for convenience to give the initial @@ -1334,6 +1335,7 @@ endif # CONFIG_MODULES # Directories & files removed with 'make clean' CLEAN_DIRS += $(MODVERDIR) include/ksym +CLEAN_FILES += modules.builtin.modinfo # Directories & files removed with 'make mrproper' MRPROPER_DIRS += include/config usr/include include/generated \ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index f65a924a75ab..701a1af4aa77 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -850,6 +850,7 @@ EXIT_CALL \ *(.discard) \ *(.discard.*) \ + *(.modinfo) \ } /** diff --git a/include/linux/module.h b/include/linux/module.h index 49942432f010..5056a346f69e 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -239,6 +239,7 @@ extern typeof(name) __mod_##type##__##name##_device_table \ #define MODULE_VERSION(_version) MODULE_INFO(version, _version) #else #define MODULE_VERSION(_version) \ + MODULE_INFO(version, _version); \ static struct module_version_attribute ___modver_attr = { \ .mattr = { \ .attr = { \ diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index ba36506db4fb..5ba250d9172a 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -10,23 +10,21 @@ module name. */ #ifdef MODULE #define MODULE_PARAM_PREFIX /* empty */ +#define __MODULE_INFO_PREFIX /* empty */ #else #define MODULE_PARAM_PREFIX KBUILD_MODNAME "." +/* We cannot use MODULE_PARAM_PREFIX because some modules override it. */ +#define __MODULE_INFO_PREFIX KBUILD_MODNAME "." #endif /* Chosen so that structs with an unsigned long line up. */ #define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long)) -#ifdef MODULE #define __MODULE_INFO(tag, name, info) \ static const char __UNIQUE_ID(name)[] \ __used __attribute__((section(".modinfo"), unused, aligned(1))) \ - = __stringify(tag) "=" info -#else /* !MODULE */ -/* This struct is here for syntactic coherency, it is not used */ -#define __MODULE_INFO(tag, name, info) \ - struct __UNIQUE_ID(name) {} -#endif + = __MODULE_INFO_PREFIX __stringify(tag) "=" info + #define __MODULE_PARM_TYPE(name, _type) \ __MODULE_INFO(parmtype, name##type, #name ":" _type) diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index c8cf45362bd6..c09e87e9c2b9 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -226,6 +226,9 @@ modpost_link vmlinux.o # modpost vmlinux.o to check for section mismatches ${MAKE} -f "${srctree}/scripts/Makefile.modpost" vmlinux.o +info MODINFO modules.builtin.modinfo +${OBJCOPY} -j .modinfo -O binary vmlinux.o modules.builtin.modinfo + kallsymso="" kallsyms_vmlinux="" if [ -n "${CONFIG_KALLSYMS}" ]; then -- 2.23.0 IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

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[PATCH kernel-4.19] brcmfmac: Loading the correct firmware for brcm43456
by fangyafenqidai＠163.com 18 Mar '21

18 Mar '21

From: Ondrej Jirman <megous(a)megous.com> Commit e3062e05e1cfe378bb9b3fa0bef46711372bcf13 upstream. SDIO based brcm43456 is currently misdetected as brcm43455 and the wrong firmware name is used. Correct the detection and load the correct firmware file. Chiprev for brcm43456 is "9". Signed-off-by: Ondrej Jirman <megous(a)megous.com> Signed-off-by: Kalle Valo <kvalo(a)codeaurora.org> Signed-off-by: Fang Yafen <yafen(a)iscas.ac.cn> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index abaed2fa2def..18e9e52f8ee7 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -621,6 +621,7 @@ BRCMF_FW_DEF(43430A0, "brcmfmac43430a0-sdio"); /* Note the names are not postfixed with a1 for backward compatibility */ BRCMF_FW_DEF(43430A1, "brcmfmac43430-sdio"); BRCMF_FW_DEF(43455, "brcmfmac43455-sdio"); +BRCMF_FW_DEF(43456, "brcmfmac43456-sdio"); BRCMF_FW_DEF(4354, "brcmfmac4354-sdio"); BRCMF_FW_DEF(4356, "brcmfmac4356-sdio"); BRCMF_FW_DEF(4373, "brcmfmac4373-sdio"); @@ -640,7 +641,8 @@ static const struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = { BRCMF_FW_ENTRY(BRCM_CC_4339_CHIP_ID, 0xFFFFFFFF, 4339), BRCMF_FW_ENTRY(BRCM_CC_43430_CHIP_ID, 0x00000001, 43430A0), BRCMF_FW_ENTRY(BRCM_CC_43430_CHIP_ID, 0xFFFFFFFE, 43430A1), - BRCMF_FW_ENTRY(BRCM_CC_4345_CHIP_ID, 0xFFFFFFC0, 43455), + BRCMF_FW_ENTRY(BRCM_CC_4345_CHIP_ID, 0x00000200, 43456), + BRCMF_FW_ENTRY(BRCM_CC_4345_CHIP_ID, 0xFFFFFDC0, 43455), BRCMF_FW_ENTRY(BRCM_CC_4354_CHIP_ID, 0xFFFFFFFF, 4354), BRCMF_FW_ENTRY(BRCM_CC_4356_CHIP_ID, 0xFFFFFFFF, 4356), BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373) -- 2.27.0

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