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-rw-r--r--arch/powerpc/kernel/align.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index bbb4181621dd..bf96b954a4eb 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -349,6 +349,7 @@ int fix_alignment(struct pt_regs *regs)
if (op.type != CACHEOP + DCBZ)
return -EINVAL;
PPC_WARN_ALIGNMENT(dcbz, regs);
+ WARN_ON_ONCE(!user_mode(regs));
r = emulate_dcbz(op.ea, regs);
} else {
if (type == LARX || type == STCX)