powerpc/32: don't restore r0, r6-r8 on exception entry path after trace_hardirqs_off()

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Since commit b86fb88855 ("powerpc/32: implement fast entry for
syscalls on non BOOKE") and commit 1a4b739bbb ("powerpc/32:
implement fast entry for syscalls on BOOKE"), syscalls don't
use the exception entry path anymore. It is therefore pointless
to restore r0 and r6-r8 after calling trace_hardirqs_off().

In the meantime, drop the '2:' label which is unused and misleading.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d2c6dc65d27e83964eb05f16a126161ab6455eea.1578388585.git.christophe.leroy@c-s.fr

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Christophe Leroy 2020-01-07 09:16:40 +00:00 • committed by Michael Ellerman

parent e1347a020b

commit 05642cf728

1 changed files with 3 additions and 8 deletions

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arch/powerpc/kernel/entry_32.S

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