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author | Anton Blanchard <anton@samba.org> | 2014-09-17 11:07:04 +0400 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2014-11-10 01:59:28 +0300 |
commit | b3c18725a0eb7ea2458e9ae3b7e5a477f52e361f (patch) | |
tree | faecb26b2ba42de9abe84471f02d8230f81a2b06 /kernel/trace | |
parent | 7d56c65a6ff9065c459fc63c509950d8ea66e00c (diff) | |
download | linux-b3c18725a0eb7ea2458e9ae3b7e5a477f52e361f.tar.xz |
powerpc/ftrace: simplify prepare_ftrace_return
Instead of passing in the stack address of the link register
to be modified, just pass in the old value and return the
new value and rely on ftrace_graph_caller to do the
modification.
This removes the exception handling around the stack update -
it isn't needed and we weren't consistent about it. Later on
we would do an unprotected modification:
if (!ftrace_graph_entry(&trace)) {
*parent = old;
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions