diff options
| author | Anton Blanchard <anton@samba.org> | 2014-09-17 17:07:03 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2014-11-10 09:59:27 +1100 |
| commit | 7d56c65a6ff9065c459fc63c509950d8ea66e00c (patch) | |
| tree | 77fac333d96da3f1791de1c27b5fbfede304c560 /arch/powerpc/kernel/entry_64.S | |
| parent | 6e4c632cdff7bf0238a2543dfe98bd1ad40313c2 (diff) | |
| download | linux-7d56c65a6ff9065c459fc63c509950d8ea66e00c.tar.gz | |
powerpc/ftrace: Remove mod_return_to_handler
mod_return_to_handler is the same as return_to_handler, except
it handles the change of the TOC (r2). Add this into
return_to_handler and remove mod_return_to_handler.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 0905c8da90f1bb..66f7ed32848f04 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -1241,28 +1241,6 @@ _GLOBAL(ftrace_graph_caller) _GLOBAL(return_to_handler) /* need to save return values */ - std r4, -24(r1) - std r3, -16(r1) - std r31, -8(r1) - mr r31, r1 - stdu r1, -112(r1) - - bl ftrace_return_to_handler - nop - - /* return value has real return address */ - mtlr r3 - - ld r1, 0(r1) - ld r4, -24(r1) - ld r3, -16(r1) - ld r31, -8(r1) - - /* Jump back to real return address */ - blr - -_GLOBAL(mod_return_to_handler) - /* need to save return values */ std r4, -32(r1) std r3, -24(r1) /* save TOC */ @@ -1272,7 +1250,7 @@ _GLOBAL(mod_return_to_handler) stdu r1, -112(r1) /* - * We are in a module using the module's TOC. + * We might be called from a module. * Switch to our TOC to run inside the core kernel. */ ld r2, PACATOC(r13) |