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authorIngo Molnar <mingo@kernel.org>2025-05-02 10:08:42 +0200
committerIngo Molnar <mingo@kernel.org>2025-05-02 10:11:17 +0200
commitc9d8ea9d53d4ddb80f2ad2bca5b9e9e40fcb9b16 (patch)
treef0d7f46849c57129f987b93d19ca9586826744d1
parent76deb5452e79ab86eac699ae3b6a44ab9c437ffe (diff)
x86/msr: Rename DECLARE_ARGS() to EAX_EDX_DECLARE_ARGS
DECLARE_ARGS() is way too generic of a name that says very little about why these args are declared in that fashion - use the EAX_EDX_ prefix to create a common prefix between the three helper methods: EAX_EDX_DECLARE_ARGS() EAX_EDX_VAL() EAX_EDX_RET() Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Uros Bizjak <ubizjak@gmail.com> Cc: linux-kernel@vger.kernel.org
-rw-r--r--arch/x86/include/asm/msr.h14
-rw-r--r--arch/x86/kernel/cpu/mce/core.c2
2 files changed, 8 insertions, 8 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 27bc0b54d0cb..d57a94c5e595 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -46,11 +46,11 @@ struct saved_msrs {
* clearing the high half of 'low':
*/
#ifdef CONFIG_X86_64
-# define DECLARE_ARGS(val, low, high) unsigned long low, high
+# define EAX_EDX_DECLARE_ARGS(val, low, high) unsigned long low, high
# define EAX_EDX_VAL(val, low, high) ((low) | (high) << 32)
# define EAX_EDX_RET(val, low, high) "=a" (low), "=d" (high)
#else
-# define DECLARE_ARGS(val, low, high) u64 val
+# define EAX_EDX_DECLARE_ARGS(val, low, high) u64 val
# define EAX_EDX_VAL(val, low, high) (val)
# define EAX_EDX_RET(val, low, high) "=A" (val)
#endif
@@ -83,7 +83,7 @@ static inline void do_trace_rdpmc(u32 msr, u64 val, int failed) {}
*/
static __always_inline u64 __rdmsr(u32 msr)
{
- DECLARE_ARGS(val, low, high);
+ EAX_EDX_DECLARE_ARGS(val, low, high);
asm volatile("1: rdmsr\n"
"2:\n"
@@ -129,7 +129,7 @@ static inline u64 native_read_msr(u32 msr)
static inline u64 native_read_msr_safe(u32 msr, int *err)
{
- DECLARE_ARGS(val, low, high);
+ EAX_EDX_DECLARE_ARGS(val, low, high);
asm volatile("1: rdmsr ; xor %[err],%[err]\n"
"2:\n\t"
@@ -182,7 +182,7 @@ extern int wrmsr_safe_regs(u32 regs[8]);
*/
static __always_inline u64 rdtsc(void)
{
- DECLARE_ARGS(val, low, high);
+ EAX_EDX_DECLARE_ARGS(val, low, high);
asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
@@ -199,7 +199,7 @@ static __always_inline u64 rdtsc(void)
*/
static __always_inline u64 rdtsc_ordered(void)
{
- DECLARE_ARGS(val, low, high);
+ EAX_EDX_DECLARE_ARGS(val, low, high);
/*
* The RDTSC instruction is not ordered relative to memory
@@ -227,7 +227,7 @@ static __always_inline u64 rdtsc_ordered(void)
static inline u64 native_read_pmc(int counter)
{
- DECLARE_ARGS(val, low, high);
+ EAX_EDX_DECLARE_ARGS(val, low, high);
asm volatile("rdpmc" : EAX_EDX_RET(val, low, high) : "c" (counter));
if (tracepoint_enabled(rdpmc))
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 255927f0284e..7b9908cb5d69 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -390,7 +390,7 @@ void ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr)
/* MSR access wrappers used for error injection */
noinstr u64 mce_rdmsrq(u32 msr)
{
- DECLARE_ARGS(val, low, high);
+ EAX_EDX_DECLARE_ARGS(val, low, high);
if (__this_cpu_read(injectm.finished)) {
int offset;