x86/msr: Remove wrmsr_on_cpu()

wrmsr_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/20260608051741.3207435-7-jgross@suse.com

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 6e0d7a6335ff8f2caed537cd58bf4433fa2e4875..0205643c1ece9f1aa617e21fde72f4c6643b1257 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 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);
 void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr __percpu *msrs);
@@ -268,11 +267,6 @@ 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 wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
-       wrmsr(msr_no, l, h);
-       return 0;
-}
 static inline int rdmsrq_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
 {
        rdmsrq(msr_no, *q);

diff --git a/arch/x86/lib/msr-smp.c b/arch/x86/lib/msr-smp.c
index 65658e8877e652d2a490e94b2b8fed1de95dd17c..a434c80408a0bd273533a05d217776b8d584ba1d 100644 (file)
--- a/arch/x86/lib/msr-smp.c
+++ b/arch/x86/lib/msr-smp.c
@@ -46,22 +46,6 @@ int rdmsrq_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
 }
 EXPORT_SYMBOL(rdmsrq_on_cpu);
 
-int wrmsr_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;
-       rv.reg.l = l;
-       rv.reg.h = h;
-       err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
-
-       return err;
-}
-EXPORT_SYMBOL(wrmsr_on_cpu);
-
 int wrmsrq_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
 {
        int err;