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-rw-r--r--include/asm-x86/nops.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86/nops.h b/include/asm-x86/nops.h
index b3930ae539b..ad0bedd10b8 100644
--- a/include/asm-x86/nops.h
+++ b/include/asm-x86/nops.h
@@ -5,6 +5,8 @@
/* generic versions from gas
1: nop
+ the following instructions are NOT nops in 64-bit mode,
+ for 64-bit mode use K8 or P6 nops instead
2: movl %esi,%esi
3: leal 0x00(%esi),%esi
4: leal 0x00(,%esi,1),%esi