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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, May 19, 2021 at 01:38:44PM +0100, Mark Rutland wrote: > Upon taking an exception, the CPU sets all the DAIF bits. We never > clear any of these bits prior to calling bad_mode(), and bad_mode() > itself never clears any of these bits, so there's no need to call > local_daif_mask(). > > This patch removes the redundant call. > > Signed-off-by: Mark Rutland > Cc: Catalin Marinas > Cc: James Morse > Cc: Marc Zyngier > Cc: Will Deacon > --- > arch/arm64/kernel/traps.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c > index a05d34f0e82a..41f0aa92022a 100644 > --- a/arch/arm64/kernel/traps.c > +++ b/arch/arm64/kernel/traps.c > @@ -765,7 +765,6 @@ asmlinkage void notrace bad_mode(struct pt_regs *regs, int reason, unsigned int > esr_get_class_string(esr)); > > __show_regs(regs); > - local_daif_mask(); > panic("bad mode"); > } > Reviewed-by Joey Gouly _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel