[PATCH 1/5] arm64: report EL1 UNDEFs better

[Mark Brown]

On Tue, Jul 12, 2022 at 05:14:48PM +0100, Mark Rutland wrote:
> If an UNDEFINED exception is taken from EL1, and do_undefinstr() doesn't
> find any suitable undef_hook, it will call:
> 
> 	BUG_ON(!user_mode(regs))

Reviewed-by: Mark Brown <broonie at kernel.org>
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