[RFC PATCH v2 30/34] x86/msr: Rename native_rdmsr() to native_rdmsr_no_trace()

["Xin Li (Intel)" <xin@xxxxxxxxx>]

native_rdmsr() doesn't do trace thus can be used in noinstr context,
rename it to native_rdmsr_no_trace() to make it explicit.

Signed-off-by: Xin Li (Intel) <xin@xxxxxxxxx>
---
 arch/x86/include/asm/microcode.h      | 2 +-
 arch/x86/include/asm/msr.h            | 8 ++++----
 arch/x86/kernel/cpu/microcode/amd.c   | 2 +-
 arch/x86/kernel/cpu/microcode/core.c  | 2 +-
 arch/x86/kernel/cpu/microcode/intel.c | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index da482f430d80..d581fdaf1f36 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -69,7 +69,7 @@ static inline u32 intel_get_microcode_revision(void)
        native_cpuid_eax(1);
 
        /* get the current revision from MSR 0x8B */
-       native_rdmsr(MSR_IA32_UCODE_REV, dummy, rev);
+       native_rdmsr_no_trace(MSR_IA32_UCODE_REV, dummy, rev);
 
        return rev;
 }
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 050d750a5ab7..dfaac42b6258 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -158,9 +158,9 @@ static __always_inline bool is_msr_imm_insn(void *ip)
  *                            /     \                                |
  *                           /       \                               |
  *        native_rdmsrq_no_trace()    native_read_msr_safe()         |
- *                   /    \                                          |
- *                  /      \                                         |
- *      native_rdmsr()    native_read_msr()                          |
+ *                   /      \                                        |
+ *                  /        \                                       |
+ * native_rdmsr_no_trace()    native_read_msr()                      |
  *                                                                   |
  *                                                                   |
  *                                                                   |
@@ -256,7 +256,7 @@ static __always_inline u64 native_rdmsrq_no_trace(u32 msr)
        return val;
 }
 
-#define native_rdmsr(msr, low, high)                   \
+#define native_rdmsr_no_trace(msr, low, high)          \
 do {                                                   \
        u64 __val = native_rdmsrq_no_trace(msr);        \
        (void)((low) = (u32)__val);                     \
diff --git a/arch/x86/kernel/cpu/microcode/amd.c 
b/arch/x86/kernel/cpu/microcode/amd.c
index 41c553396500..f1f275ddab57 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -256,7 +256,7 @@ static u32 get_patch_level(void)
 {
        u32 rev, dummy __always_unused;
 
-       native_rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
+       native_rdmsr_no_trace(MSR_AMD64_PATCH_LEVEL, rev, dummy);
 
        return rev;
 }
diff --git a/arch/x86/kernel/cpu/microcode/core.c 
b/arch/x86/kernel/cpu/microcode/core.c
index b3658d11e7b6..9bda8fd987ab 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -84,7 +84,7 @@ static bool amd_check_current_patch_level(void)
        u32 lvl, dummy, i;
        u32 *levels;
 
-       native_rdmsr(MSR_AMD64_PATCH_LEVEL, lvl, dummy);
+       native_rdmsr_no_trace(MSR_AMD64_PATCH_LEVEL, lvl, dummy);
 
        levels = final_levels;
 
diff --git a/arch/x86/kernel/cpu/microcode/intel.c 
b/arch/x86/kernel/cpu/microcode/intel.c
index 26e13dc4cedd..c0307b1ad63d 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -78,7 +78,7 @@ void intel_collect_cpu_info(struct cpu_signature *sig)
                unsigned int val[2];
 
                /* get processor flags from MSR 0x17 */
-               native_rdmsr(MSR_IA32_PLATFORM_ID, val[0], val[1]);
+               native_rdmsr_no_trace(MSR_IA32_PLATFORM_ID, val[0], val[1]);
                sig->pf = 1 << ((val[1] >> 18) & 7);
        }
 }
-- 
2.49.0