x86/msr: Remove rdmsr_on_cpu()

rdmsr_on_cpu() has no users left. Delete it.

Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://patch.msgid.link/20260608051741.3207435-5-jgross@suse.com

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index d5985d6fdaf948b93429ba15be2ca4a7940a0686..22f914f7affecdb3f740d94641f2f691d8b5babc 100644 (file)
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -256,7 +256,6 @@ int msr_set_bit(u32 msr, u8 bit);
 int msr_clear_bit(u32 msr, u8 bit);
 
 #ifdef CONFIG_SMP
-int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
 int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
 int rdmsrq_on_cpu(unsigned int cpu, u32 msr_no, u64 *q);
 int wrmsrq_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
@@ -269,11 +268,6 @@ int wrmsrq_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
 int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
 int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
 #else  /*  CONFIG_SMP  */
-static inline int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
-       rdmsr(msr_no, *l, *h);
-       return 0;
-}
 static inline int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
 {
        wrmsr(msr_no, l, h);

diff --git a/arch/x86/lib/msr-smp.c b/arch/x86/lib/msr-smp.c
index b8f63419e6ae95b4fbabab7164c4e9fefb4769de..65658e8877e652d2a490e94b2b8fed1de95dd17c 100644 (file)
--- a/arch/x86/lib/msr-smp.c
+++ b/arch/x86/lib/msr-smp.c
@@ -31,22 +31,6 @@ static void __wrmsr_on_cpu(void *info)
        wrmsr(rv->msr_no, reg->l, reg->h);
 }
 
-int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
-       int err;
-       struct msr_info rv;
-
-       memset(&rv, 0, sizeof(rv));
-
-       rv.msr_no = msr_no;
-       err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
-       *l = rv.reg.l;
-       *h = rv.reg.h;
-
-       return err;
-}
-EXPORT_SYMBOL(rdmsr_on_cpu);
-
 int rdmsrq_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
 {
        int err;