--- /dev/null
+From 396a66aa1172ef2b78c21651f59b40b87b2e5e1e Mon Sep 17 00:00:00 2001
+From: Arnd Bergmann <arnd@arndb.de>
+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@arndb.de>
+
+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@arndb.de>
+Signed-off-by: Ingo Molnar <mingo@kernel.org>
+Link: https://lore.kernel.org/r/20210322164541.912261-1-arnd@kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ 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
+@@ -239,7 +239,7 @@ 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;
+@@ -252,7 +252,7 @@ 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;