[PATCH v1] ARM: A9: Add ARM ERRATA 764319 workaround

[Russell King (Oracle)]

On Wed, May 11, 2022 at 02:45:27PM +0200, Arnd Bergmann wrote:
> If it doesn't work, then there is no point trying. You could try
> changing the exception handling so it searches the ex_table for
> Undefined Instruction exceptions as well, but that's probably more
> complicated.

What's the point when we have the undef hook?

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