This is a note to let you know that I've just added the patch titled x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-msr-fix-wr-rdmsr_safe_regs_on_cpu-prototypes.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 396a66aa1172ef2b78c21651f59b40b87b2e5e1e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann <arnd@xxxxxxxx> Date: Mon, 22 Mar 2021 17:45:36 +0100 Subject: x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Arnd Bergmann <arnd@xxxxxxxx> commit 396a66aa1172ef2b78c21651f59b40b87b2e5e1e upstream. gcc-11 warns about mismatched prototypes here: arch/x86/lib/msr-smp.c:255:51: error: argument 2 of type ‘u32 *’ {aka ‘unsigned int *’} declared as a pointer [-Werror=array-parameter=] 255 | int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs) | ~~~~~^~~~ arch/x86/include/asm/msr.h:347:50: note: previously declared as an array ‘u32[8]’ {aka ‘unsigned int[8]’} GCC is right here - fix up the types. [ mingo: Twiddled the changelog. ] Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210322164541.912261-1-arnd@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/lib/msr-smp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/x86/lib/msr-smp.c +++ b/arch/x86/lib/msr-smp.c @@ -253,7 +253,7 @@ static void __wrmsr_safe_regs_on_cpu(voi rv->err = wrmsr_safe_regs(rv->regs); } -int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs) +int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]) { int err; struct msr_regs_info rv; @@ -266,7 +266,7 @@ int rdmsr_safe_regs_on_cpu(unsigned int } EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu); -int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs) +int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]) { int err; struct msr_regs_info rv; Patches currently in stable-queue which might be from arnd@xxxxxxxx are queue-5.4/x86-msr-fix-wr-rdmsr_safe_regs_on_cpu-prototypes.patch