Re: [PATCH] powerpc/32: Preserve cr1 in exception prolog stack check to fix build error
From: Michael Ellerman <hidden>
Date: 2021-02-12 00:20:56
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On Mon, 8 Feb 2021 07:17:40 +0000 (UTC), Christophe Leroy wrote:
THREAD_ALIGN_SHIFT = THREAD_SHIFT + 1 = PAGE_SHIFT + 1 Maximum PAGE_SHIFT is 18 for 256k pages so THREAD_ALIGN_SHIFT is 19 at the maximum. No need to clobber cr1, it can be preserved when moving r1 into CR when we check stack overflow. [...]
Applied to powerpc/next.
[1/1] powerpc/32: Preserve cr1 in exception prolog stack check to fix build error
https://git.kernel.org/powerpc/c/3642eb21256a317ac14e9ed560242c6d20cf06d9
cheers