Re: [PATCH v2] powerpc: Avoid link stack corruption in misc asm functions
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From: Michael Ellerman <hidden>
Date: 2021-08-27 13:22:39
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On Tue, 24 Aug 2021 07:56:35 +0000 (UTC), Christophe Leroy wrote:
bl;mflr is used at several places to get code position.
Use bcl 20,31,+4 instead of bl in order to preserve link stack.
See commit c974809a26a1 ("powerpc/vdso: Avoid link stack corruption
in __get_datapage()") for details.
[...]
Applied to powerpc/next.
[1/1] powerpc: Avoid link stack corruption in misc asm functions
https://git.kernel.org/powerpc/c/33e1402435cb9f3021439a15935ea2dc69ec1844
cheers