Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-block.git] / arch / x86 / kernel / alternative.c

diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index dbaf14d69ebd510b86a4a0e9e83bbd1862d99d14..4817d743c26359c697559053a23518a5e25b241b 100644 (file)
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -344,9 +344,12 @@ done:
 static void __init_or_module noinline optimize_nops(struct alt_instr *a, u8 *instr)
 {
        unsigned long flags;
+       int i;
 
-       if (instr[0] != 0x90)
-               return;
+       for (i = 0; i < a->padlen; i++) {
+               if (instr[i] != 0x90)
+                       return;
+       }
 
        local_irq_save(flags);
        add_nops(instr + (a->instrlen - a->padlen), a->padlen);