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powerpc/vdso: Save and restore TOC pointer on PPC64
authorChristophe Leroy <christophe.leroy@csgroup.eu>
Thu, 26 Nov 2020 13:10:04 +0000 (00:10 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 3 Dec 2020 14:01:10 +0000 (01:01 +1100)
commit7fec9f5d41979dbe273ec337327d5939449562e7
treea34764eaa4dffdba3f53e88849e7cd06eea77758
parentce7d8056e38b770f070fc4499c577322b6ccb9c7
powerpc/vdso: Save and restore TOC pointer on PPC64

On PPC64, the TOC pointer needs to be saved and restored.

Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201126131006.2431205-7-mpe@ellerman.id.au
arch/powerpc/include/asm/vdso/gettimeofday.h