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yaml --- r: 120830 b: refs/heads/master c: d4f1b10 h: refs/heads/master v: v3
git-mirror · Oct 28, 2008 · 89b1c77 · 89b1c77
1 parent 5b28197
commit 89b1c77
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2011a067281565494494aee194ca5081e52d6c3f
+refs/heads/master: d4f1b10365d4f03dd802433e0014cf503e6e930c
diff --git a/trunk/arch/x86/include/asm/msr.h b/trunk/arch/x86/include/asm/msr.h
@@ -22,10 +22,10 @@ static inline unsigned long long native_read_tscp(unsigned int *aux)
 }
 
 /*
- * i386 calling convention returns 64-bit value in edx:eax, while
- * x86_64 returns at rax. Also, the "A" constraint does not really
- * mean rdx:rax in x86_64, so we need specialized behaviour for each
- * architecture
+ * both i386 and x86_64 returns 64-bit value in edx:eax, but gcc's "A"
+ * constraint has different meanings. For i386, "A" means exactly
+ * edx:eax, while for x86_64 it doesn't mean rdx:rax or edx:eax. Instead,
+ * it means rax *or* rdx.
  */
 #ifdef CONFIG_X86_64
 #define DECLARE_ARGS(val, low, high)	unsigned low, high