[PATCH 05/20] x86/msr: Harmonize the prototype and definition of do_trace_rdpmc()

Ingo Molnar
2025-04-09T20:29:30Z

In <asm/msr.h> the first parameter of do_trace_rdpmc() is named 'msr':

extern void do_trace_rdpmc(unsigned int msr, u64 val, int failed);

But in the definition it's 'counter':

void do_trace_rdpmc(unsigned counter, u64 val, int failed)

Use 'msr' in both cases, and change the type to u32.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Xin Li <xin@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
---
arch/x86/include/asm/msr.h | 4 ++--
arch/x86/lib/msr.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 8ee6fc633476..ec5c873a83a1 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -65,11 +65,11 @@ DECLARE_TRACEPOINT(write_msr);
DECLARE_TRACEPOINT(rdpmc);
extern void do_trace_write_msr(unsigned int msr, u64 val, int failed);
extern void do_trace_read_msr(unsigned int msr, u64 val, int failed);
-extern void do_trace_rdpmc(unsigned int msr, u64 val, int failed);
+extern void do_trace_rdpmc(u32 msr, u64 val, int failed);
#else
static inline void do_trace_write_msr(unsigned int msr, u64 val, int failed) {}
static inline void do_trace_read_msr(unsigned int msr, u64 val, int failed) {}
-static inline void do_trace_rdpmc(unsigned int msr, u64 val, int failed) {}
+static inline void do_trace_rdpmc(u32 msr, u64 val, int failed) {}
#endif

/*
diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c
index 5a18ecc04a6c..20f5c36e5fde 100644
--- a/arch/x86/lib/msr.c
+++ b/arch/x86/lib/msr.c
@@ -136,9 +136,9 @@ void do_trace_read_msr(unsigned int msr, u64 val, int failed)
EXPORT_SYMBOL(do_trace_read_msr);
EXPORT_TRACEPOINT_SYMBOL(read_msr);

-void do_trace_rdpmc(unsigned counter, u64 val, int failed)
+void do_trace_rdpmc(u32 msr, u64 val, int failed)
{
- trace_rdpmc(counter, val, failed);
+ trace_rdpmc(msr, val, failed);
}
EXPORT_SYMBOL(do_trace_rdpmc);
EXPORT_TRACEPOINT_SYMBOL(rdpmc);
--
2.45.2