From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 15 May 2025 15:49:16 +0000 (+0200)
Subject: x86/msr: Add rdmsrl_on_cpu() compatibility wrapper
X-Git-Tag: v6.16-rc1~195^2~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=baad9190e6465fdbe458f59cf04c2b2032ec4797;p=thirdparty%2Fkernel%2Flinux.git

x86/msr: Add rdmsrl_on_cpu() compatibility wrapper

Add a simple rdmsrl_on_cpu() compatibility wrapper for
rdmsrq_on_cpu(), to make life in -next easier, where
the PM tree recently grew more uses of the old API.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mario Limonciello <mario.limonciello@amd.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Xin Li <xin@zytor.com>
Link: https://lore.kernel.org/r/20250512145517.6e0666e3@canb.auug.org.au
---

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index a9ce56fc8785a..4096b8af4ba76 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -329,6 +329,7 @@ static inline int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8])
 /* Compatibility wrappers: */
 #define rdmsrl(msr, val) rdmsrq(msr, val)
 #define wrmsrl(msr, val) wrmsrq(msr, val)
+#define rdmsrl_on_cpu(cpu, msr, q) rdmsrq_on_cpu(cpu, msr, q)
 
 #endif /* __ASSEMBLER__ */
 #endif /* _ASM_X86_MSR_H */