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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-12 23:07:46 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-12 23:07:46 +0100 |
| commit | 0a87a2db485a1456b7427914969c0e8195a1bbda (patch) | |
| tree | 8d0186672af22c6ee76118c471881cd66a36502d /arch/powerpc/kernel/entry_32.S | |
| parent | drm/i915: Reserve shadow batch VMA analogue to others (diff) | |
| parent | drm/i915: remove unused power_well/get_cdclk_freq api (diff) | |
| download | linux-dev-0a87a2db485a1456b7427914969c0e8195a1bbda.tar.xz linux-dev-0a87a2db485a1456b7427914969c0e8195a1bbda.zip | |
Merge tag 'topic/i915-hda-componentized-2015-01-12' into drm-intel-next-queued
Conflicts:
drivers/gpu/drm/i915/intel_runtime_pm.c
Separate branch so that Takashi can also pull just this refactoring
into sound-next.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 22b45a4955cd..10a093579191 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -1424,12 +1424,18 @@ _GLOBAL(ftrace_graph_caller) lwz r4, 44(r1) subi r4, r4, MCOUNT_INSN_SIZE - /* get the parent address */ - addi r3, r1, 52 + /* Grab the LR out of the caller stack frame */ + lwz r3,52(r1) bl prepare_ftrace_return nop + /* + * prepare_ftrace_return gives us the address we divert to. + * Change the LR in the callers stack frame to this. + */ + stw r3,52(r1) + MCOUNT_RESTORE_FRAME /* old link register ends up in ctr reg */ bctr @@ -1457,4 +1463,4 @@ _GLOBAL(return_to_handler) blr #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ -#endif /* CONFIG_MCOUNT */ +#endif /* CONFIG_FUNCTION_TRACER */ |