Re: [PATCH] powerpc/32: don't restore r0, r6-r8 on exception entry path after trace_hardirqs_off()
From: Michael Ellerman <hidden>
Date: 2020-03-06 00:27:42
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On Tue, 2020-01-07 at 09:16:40 UTC, Christophe Leroy wrote:
Since commit b86fb88855ea ("powerpc/32: implement fast entry for
syscalls on non BOOKE") and commit 1a4b739bbb4f ("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 <redacted>Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/05642cf7289c5562e5939d2ee8a0529d310010b8 cheers