From: Michael Ellerman <mpe@ellerman.id.au>
Date: Fri, 5 Dec 2014 10:16:59 +0000 (+1100)
Subject: powerpc/kernel: Make syscall_exit a local label
X-Git-Tag: fixes-v4.0-rc1~132^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c3b21686111e0ac6018469dacbc5549f9915cf8;p=pandora-kernel.git

powerpc/kernel: Make syscall_exit a local label

Currently when we back trace something that is in a syscall we see
something like this:

[c000000000000000] [c000000000000000] SyS_read+0x6c/0x110
[c000000000000000] [c000000000000000] syscall_exit+0x0/0x98

Although it's entirely correct, seeing syscall_exit at the bottom can be
confusing - we were exiting from a syscall and then called SyS_read() ?

If we instead change syscall_exit to be a local label we get something
more intuitive:

[c0000001fa46fde0] [c00000000026719c] SyS_read+0x6c/0x110
[c0000001fa46fe30] [c000000000009264] system_call+0x38/0xd0

ie. we were handling a system call, and it was SyS_read().

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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