KVM: x86 emulator: simplify REX.W check

(x && (x & y)) == (x & y) Signed-off-by: N Avi Kivity <avi@redhat.com>

KVM: x86 emulator: simplify REX.W check
(x && (x & y)) == (x & y) Signed-off-by: N Avi Kivity <avi@redhat.com>
1e87e3ef · Avi Kivity · d4709c78 · 1e87e3ef
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Showing with 2 addition and 3 deletion

arch/x86/kvm/emulate.c arch/x86/kvm/emulate.c +2 -3

未找到文件。
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2358,7 +2358,6 @@ x86_decode_insn(struct x86_emulate_ctxt *ctxt)
 done_prefixes:
 	/* REX prefix. */
-	if (c->rex_prefix)
 	if (c->rex_prefix & 8)
 		c->op_bytes = 8;	/* REX.W */