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[PATCH OLK-6.6] nfsd: call cache_put if xdr_reserve_space returns NULL
by Li Lingfeng 22 Oct '24

22 Oct '24

From: Guoqing Jiang <guoqing.jiang(a)linux.dev> stable inclusion from stable-v6.6.54 commit a1afbbb5276f943ad7173d0b4c626b8c75a260da category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAYQRM CVE: CVE-2024-47737 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d078cbf5c38de83bc31f83c47dcd2184c04a50c7 ] If not enough buffer space available, but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get. Fixes: ddd1ea563672 ("nfsd4: use xdr_reserve_space in attribute encoding") Signed-off-by: Guoqing Jiang <guoqing.jiang(a)linux.dev> Reviwed-by: Jeff Layton <jlayton(a)kernel.org> Signed-off-by: Chuck Lever <chuck.lever(a)oracle.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- fs/nfsd/nfs4idmap.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index 7a806ac13e31..8cca1329f348 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -581,6 +581,7 @@ static __be32 idmap_id_to_name(struct xdr_stream *xdr, .id = id, .type = type, }; + __be32 status = nfs_ok; __be32 *p; int ret; struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); @@ -593,12 +594,16 @@ static __be32 idmap_id_to_name(struct xdr_stream *xdr, return nfserrno(ret); ret = strlen(item->name); WARN_ON_ONCE(ret > IDMAP_NAMESZ); + p = xdr_reserve_space(xdr, ret + 4); - if (!p) - return nfserr_resource; - p = xdr_encode_opaque(p, item->name, ret); + if (unlikely(!p)) { + status = nfserr_resource; + goto out_put; + } + xdr_encode_opaque(p, item->name, ret); +out_put: cache_put(&item->h, nn->idtoname_cache); - return 0; + return status; } static bool -- 2.31.1

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[PATCH openEuler-1.0-LTS 0/3] backport some LTS patches
by Liu Jian 22 Oct '24

22 Oct '24

backport some LTS patches. Benjamin Coddington (1): SUNRPC: Fix a race to wake a sync task Eric Dumazet (2): net: linkwatch: use system_unbound_wq net: busy-poll: use ktime_get_ns() instead of local_clock() include/net/busy_poll.h | 2 +- net/core/link_watch.c | 4 ++-- net/sunrpc/sched.c | 4 +++- 3 files changed, 6 insertions(+), 4 deletions(-) -- 2.34.1

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[PATCH OLK-5.10] arm64: errata: Add Cortex-A55 to the repeat tlbi list
by Bowen You 22 Oct '24

22 Oct '24

From: James Morse <james.morse(a)arm.com> mainline inclusion from mainline-v6.1-rc1 commit 171df58028bf4649460fb146a56a58dcb0c8f75a category: bugfix bugzilla: 190345 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Cortex-A55 is affected by an erratum where in rare circumstances the CPUs may not handle a race between a break-before-make sequence on one CPU, and another CPU accessing the same page. This could allow a store to a page that has been unmapped. Work around this by adding the affected CPUs to the list that needs TLB sequences to be done twice. Signed-off-by: James Morse <james.morse(a)arm.com> Cc: <stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20220930131959.3082594-1-james.morse@arm.com Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com> Conflicts: arch/arm64/kernel/cpu_errata.c [Some erratum are not added into repeat tlbi list] Signed-off-by: Bowen You <youbowen2(a)huawei.com> --- Documentation/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 17 +++++++++++++++++ arch/arm64/kernel/cpu_errata.c | 5 +++++ 3 files changed, 24 insertions(+) diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index af12c363a699..7a087383d8c2 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -68,6 +68,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A55 | #2441007 | ARM64_ERRATUM_2441007 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 | +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #852523 | N/A | diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 8b8f48b2a51e..751f6c1a2bcc 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -624,6 +624,23 @@ config ARM64_ERRATUM_1530923 config ARM64_WORKAROUND_REPEAT_TLBI bool +config ARM64_ERRATUM_2441007 + bool "Cortex-A55: Completion of affected memory accesses might not be guaranteed by completion of a TLBI" + default y + select ARM64_WORKAROUND_REPEAT_TLBI + help + This option adds a workaround for ARM Cortex-A55 erratum #2441007. + + Under very rare circumstances, affected Cortex-A55 CPUs + may not handle a race between a break-before-make sequence on one + CPU, and another CPU accessing the same page. This could allow a + store to a page that has been unmapped. + + Work around this by adding the affected CPUs to the list that needs + TLB sequences to be done twice. + + If unsure, say Y. + config ARM64_ERRATUM_1286807 bool "Cortex-A76: Modification of the translation table for a virtual address might lead to read-after-read ordering violation" default y diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 7f175b3aac15..c7bac554ca8c 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -297,6 +297,11 @@ static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = { /* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */ ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe), }, +#endif +#ifdef CONFIG_ARM64_ERRATUM_2441007 + { + ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55), + }, #endif {}, }; -- 2.34.1

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[OLK-5.10] [Backport] arm64: errata: Add Cortex-A55 to the repeat tlbi list
by Bowen You 22 Oct '24

22 Oct '24

From: James Morse <james.morse(a)arm.com> mainline inclusion from mainline-v6.1-rc1 commit 171df58028bf4649460fb146a56a58dcb0c8f75a category: bugfix bugzilla: 190345 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Cortex-A55 is affected by an erratum where in rare circumstances the CPUs may not handle a race between a break-before-make sequence on one CPU, and another CPU accessing the same page. This could allow a store to a page that has been unmapped. Work around this by adding the affected CPUs to the list that needs TLB sequences to be done twice. Signed-off-by: James Morse <james.morse(a)arm.com> Cc: <stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20220930131959.3082594-1-james.morse@arm.com Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com> Signed-off-by: Bowen You <youbowen2(a)huawei.com> --- Documentation/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 17 +++++++++++++++++ arch/arm64/kernel/cpu_errata.c | 5 +++++ 3 files changed, 24 insertions(+) diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index af12c363a699..7a087383d8c2 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -68,6 +68,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A55 | #2441007 | ARM64_ERRATUM_2441007 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 | +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #852523 | N/A | diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 8b8f48b2a51e..751f6c1a2bcc 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -624,6 +624,23 @@ config ARM64_ERRATUM_1530923 config ARM64_WORKAROUND_REPEAT_TLBI bool +config ARM64_ERRATUM_2441007 + bool "Cortex-A55: Completion of affected memory accesses might not be guaranteed by completion of a TLBI" + default y + select ARM64_WORKAROUND_REPEAT_TLBI + help + This option adds a workaround for ARM Cortex-A55 erratum #2441007. + + Under very rare circumstances, affected Cortex-A55 CPUs + may not handle a race between a break-before-make sequence on one + CPU, and another CPU accessing the same page. This could allow a + store to a page that has been unmapped. + + Work around this by adding the affected CPUs to the list that needs + TLB sequences to be done twice. + + If unsure, say Y. + config ARM64_ERRATUM_1286807 bool "Cortex-A76: Modification of the translation table for a virtual address might lead to read-after-read ordering violation" default y diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 7f175b3aac15..c7bac554ca8c 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -297,6 +297,11 @@ static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = { /* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */ ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe), }, +#endif +#ifdef CONFIG_ARM64_ERRATUM_2441007 + { + ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55), + }, #endif {}, }; -- 2.34.1

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温馨提醒 //答复: 【重要】openEuler 24.03 LTS SP1版本需求收集中，请大家提交需要合入的特性到release plan
by Sujinling 22 Oct '24

22 Oct '24

openEuler 24.03 LTS SP1 版本计划在Release Sig例会已同步过，需求收集截止节点 10/31，请大家及时提交需要合入的特性到release plan，感谢~ Thanks & best regards, 苏锦铃 00566192 发件人: Sujinling <sujinling(a)huawei.com> 发送时间: 2024年9月2日 10:23 收件人: release(a)openeuler.org; tc(a)openeuler.org; dev(a)openeuler.org; kernel(a)openeuler.org 主题: 【重要】openEuler 24.03 LTS SP1版本需求收集中，请大家提交需要合入的特性到release plan 大家好， openEuler 24.03 LTS SP1是基于6.6内核的24.03-LTS版本增强扩展版本，按release-plan计划启动需求收集，欢迎各sig maintainer、伙伴和社区开发者们积极反馈和交流。请大家提交需要合入的特性清单到release plan上，感谢！ openEuler 24.03 LTS SP1版本release plan详细版本计划： https://gitee.com/openeuler/release-management/blob/master/openEuler-24.03-… 需求申请流程链接，请按照流程步骤提交，issue 类型选择需求， issue 标题以 [openEuler-24.03 LTS SP1] 开头： https://gitee.com/openeuler/release-management/blob/master/Goverance/openEu… Thanks & best regards, 苏锦铃

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[PATCH OLK-5.10 0/5] fix CVE-2024-40965
by dinglongwei 22 Oct '24

22 Oct '24

fix CVE-2024-40965 Alexander Stein (1): i2c: lpi2c: Avoid calling clk_get_rate during transfer Carlos Song (1): i2c: imx-lpi2c: return -EINVAL when i2c peripheral clk doesn't work Peng Fan (1): i2c: imx-lpi2c: use bulk clk API Uwe Kleine-König (2): clk: Add a devm variant of clk_rate_exclusive_get() clk: Provide !COMMON_CLK dummy for devm_clk_rate_exclusive_get() drivers/clk/clk.c | 19 ++++++++++++++ drivers/i2c/busses/i2c-imx-lpi2c.c | 40 +++++++++++++++++++++--------- include/linux/clk.h | 17 +++++++++++++ 3 files changed, 64 insertions(+), 12 deletions(-) -- 2.17.1

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[PATCH OLK-6.6] printk: Add notation to console_srcu locking
by Xiaomeng Zhang 22 Oct '24

22 Oct '24

From: John Ogness <john.ogness(a)linutronix.de> mainline inclusion from mainline-v6.12-rc1 commit eda25860bf6e71932311f1b5acdf8fc05cd84ff3 category: bugfix bugzilla: 190343 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- kernel/printk/printk.c:284:5: sparse: sparse: context imbalance in 'console_srcu_read_lock' - wrong count at exit include/linux/srcu.h:301:9: sparse: sparse: context imbalance in 'console_srcu_read_unlock' - unexpected unlock Fixes: 6c4afa79147e ("printk: Prepare for SRCU console list protection") Signed-off-by: John Ogness <john.ogness(a)linutronix.de> Reviewed-by: Petr Mladek <pmladek(a)suse.com> Acked-by: Paul E. McKenney <paulmck(a)kernel.org> Link: https://lore.kernel.org/r/20240820063001.36405-2-john.ogness@linutronix.de Signed-off-by: Petr Mladek <pmladek(a)suse.com> Signed-off-by: Xiaomeng Zhang <zhangxiaomeng13(a)huawei.com> --- kernel/printk/printk.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index b4e390e0b4bd..1ab3185846a7 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -288,6 +288,7 @@ EXPORT_SYMBOL(console_list_unlock); * Return: A cookie to pass to console_srcu_read_unlock(). */ int console_srcu_read_lock(void) + __acquires(&console_srcu) { return srcu_read_lock_nmisafe(&console_srcu); } @@ -301,6 +302,7 @@ EXPORT_SYMBOL(console_srcu_read_lock); * Counterpart to console_srcu_read_lock() */ void console_srcu_read_unlock(int cookie) + __releases(&console_srcu) { srcu_read_unlock_nmisafe(&console_srcu, cookie); } -- 2.34.1

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[openeuler:OLK-5.10] BUILD REGRESSION 950c74b8b6db893114b092f9fd2548037daa73f7
by kernel test robot 22 Oct '24

22 Oct '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 950c74b8b6db893114b092f9fd2548037daa73f7 !12261 drm/lima: fix a memleak in lima_heap_alloc Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild/202410212221.65cVVMvV-lkp@intel.com drivers/usb/cdns3/debug.h:57:15: warning: 'sprintf' argument 3 may overlap destination object 'field' [-Wrestrict] Unverified Error/Warning (likely false positive, kindly check if interested): kernel/sched/topology.c:1734 (null)() warn: (struct ctl_table)->proc_handler cannot be NULL. Expression : sched_cluster_sysctls[1]->proc_handler kernel/sched/topology.c:1734 (null)() warn: (struct ctl_table)->procname cannot be NULL. Expression : sched_cluster_sysctls[1]->procname Error/Warning ids grouped by kconfigs: recent_errors |-- x86_64-allyesconfig | |-- drivers-net-ipvlan-ipvlan_main.c:warning:variable-old_prog-set-but-not-used | |-- kernel-sched-core.c:warning:no-previous-prototype-for-function-sched_setsteal | |-- kernel-sched-core.c:warning:no-previous-prototype-for-function-tg_change_steal | |-- ld.lld:error:duplicate-symbol:g_uld_mutex | |-- ld.lld:error:duplicate-symbol:lld_dev_hold | |-- ld.lld:error:duplicate-symbol:lld_dev_put | `-- ld.lld:error:duplicate-symbol:nic_ioctl |-- x86_64-randconfig-161-20241013 | |-- kernel-sched-topology.c-(null)()-warn:(struct-ctl_table)-proc_handler-cannot-be-NULL.-Expression:sched_cluster_sysctls-proc_handler | `-- kernel-sched-topology.c-(null)()-warn:(struct-ctl_table)-procname-cannot-be-NULL.-Expression:sched_cluster_sysctls-procname `-- x86_64-randconfig-161-20241021 `-- drivers-usb-cdns3-debug.h:warning:sprintf-argument-may-overlap-destination-object-field elapsed time: 1454m configs tested: 6 configs skipped: 40 tested configs: arm64 allnoconfig gcc-14.1.0 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 defconfig gcc-11 x86_64 kexec clang-18 x86_64 rhel-8.3 gcc-12 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6] i2c: lpi2c: Avoid calling clk_get_rate during transfer
by dinglongwei 22 Oct '24

22 Oct '24

From: Alexander Stein <alexander.stein(a)ew.tq-group.com> stable inclusion from stable-v6.9.7 commit 2b42e9587a7a9c7b824e0feb92958f258263963e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IACT5O CVE: CVE-2024-40965 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4268254a39484fc11ba991ae148bacbe75d9cc0a ] Instead of repeatedly calling clk_get_rate for each transfer, lock the clock rate and cache the value. A deadlock has been observed while adding tlv320aic32x4 audio codec to the system. When this clock provider adds its clock, the clk mutex is locked already, it needs to access i2c, which in return needs the mutex for clk_get_rate as well. Signed-off-by: Alexander Stein <alexander.stein(a)ew.tq-group.com> Reviewed-by: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Reviewed-by: Andi Shyti <andi.shyti(a)kernel.org> Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/i2c/busses/i2c-imx-lpi2c.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c index 678b30e90492..14473c223cfa 100644 --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -99,6 +99,7 @@ struct lpi2c_imx_struct { __u8 *rx_buf; __u8 *tx_buf; struct completion complete; + unsigned long rate_per; unsigned int msglen; unsigned int delivered; unsigned int block_data; @@ -207,9 +208,7 @@ static int lpi2c_imx_config(struct lpi2c_imx_struct *lpi2c_imx) lpi2c_imx_set_mode(lpi2c_imx); - clk_rate = clk_get_rate(lpi2c_imx->clks[0].clk); - if (!clk_rate) - return -EINVAL; + clk_rate = lpi2c_imx->rate_per; if (lpi2c_imx->mode == HS || lpi2c_imx->mode == ULTRA_FAST) filt = 0; @@ -590,6 +589,20 @@ static int lpi2c_imx_probe(struct platform_device *pdev) if (ret) return ret; + /* + * Lock the parent clock rate to avoid getting parent clock upon + * each transfer + */ + ret = devm_clk_rate_exclusive_get(&pdev->dev, lpi2c_imx->clks[0].clk); + if (ret) + return dev_err_probe(&pdev->dev, ret, + "can't lock I2C peripheral clock rate\n"); + + lpi2c_imx->rate_per = clk_get_rate(lpi2c_imx->clks[0].clk); + if (!lpi2c_imx->rate_per) + return dev_err_probe(&pdev->dev, -EINVAL, + "can't get I2C peripheral clock rate\n"); + pm_runtime_set_autosuspend_delay(&pdev->dev, I2C_PM_TIMEOUT); pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_get_noresume(&pdev->dev); -- 2.17.1

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[PATCH OLK-5.10] soc: qcom: cmd-db: Map shared memory as WC, not WB
by dinglongwei 22 Oct '24

22 Oct '24

From: Volodymyr Babchuk <Volodymyr_Babchuk(a)epam.com> stable inclusion from stable-v5.10.225 commit f5a5a5a0e95f36e2792d48e6e4b64e665eb01374 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAR5ZD CVE: CVE-2024-46689 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit f9bb896eab221618927ae6a2f1d566567999839d upstream. Linux does not write into cmd-db region. This region of memory is write protected by XPU. XPU may sometime falsely detect clean cache eviction as "write" into the write protected region leading to secure interrupt which causes an endless loop somewhere in Trust Zone. The only reason it is working right now is because Qualcomm Hypervisor maps the same region as Non-Cacheable memory in Stage 2 translation tables. The issue manifests if we want to use another hypervisor (like Xen or KVM), which does not know anything about those specific mappings. Changing the mapping of cmd-db memory from MEMREMAP_WB to MEMREMAP_WT/WC removes dependency on correct mappings in Stage 2 tables. This patch fixes the issue by updating the mapping to MEMREMAP_WC. I tested this on SA8155P with Xen. Fixes: 312416d9171a ("drivers: qcom: add command DB driver") Cc: stable(a)vger.kernel.org # 5.4+ Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk(a)epam.com> Tested-by: Nikita Travkin <nikita(a)trvn.ru> # sc7180 WoA in EL2 Signed-off-by: Maulik Shah <quic_mkshah(a)quicinc.com> Tested-by: Pavankumar Kondeti <quic_pkondeti(a)quicinc.com> Reviewed-by: Caleb Connolly <caleb.connolly(a)linaro.org> Link: https://lore.kernel.org/r/20240718-cmd_db_uncached-v2-1-f6cf53164c90@quicin… Signed-off-by: Bjorn Andersson <andersson(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> Signed-off-by: dinglongwei <dinglongwei1(a)huawei.com> --- drivers/soc/qcom/cmd-db.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/qcom/cmd-db.c b/drivers/soc/qcom/cmd-db.c index fc5610603b17..006bb28e2a6e 100644 --- a/drivers/soc/qcom/cmd-db.c +++ b/drivers/soc/qcom/cmd-db.c @@ -319,7 +319,7 @@ static int cmd_db_dev_probe(struct platform_device *pdev) return -EINVAL; } - cmd_db_header = memremap(rmem->base, rmem->size, MEMREMAP_WB); + cmd_db_header = memremap(rmem->base, rmem->size, MEMREMAP_WC); if (!cmd_db_header) { ret = -ENOMEM; cmd_db_header = NULL; -- 2.17.1

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