Message ID | 1395747879-5948-20-git-send-email-anton@samba.org (mailing list archive) |
---|---|
State | Superseded |
Headers | show |
diff --git a/arch/powerpc/include/asm/irqflags.h b/arch/powerpc/include/asm/irqflags.h index f62c056..e20eb95 100644 --- a/arch/powerpc/include/asm/irqflags.h +++ b/arch/powerpc/include/asm/irqflags.h @@ -20,9 +20,9 @@ */ #define TRACE_WITH_FRAME_BUFFER(func) \ mflr r0; \ - stdu r1, -32(r1); \ + stdu r1, -STACK_FRAME_OVERHEAD(r1); \ std r0, 16(r1); \ - stdu r1, -32(r1); \ + stdu r1, -STACK_FRAME_OVERHEAD(r1); \ bl func; \ ld r1, 0(r1); \ ld r1, 0(r1);
TRACE_WITH_FRAME_BUFFER creates 32 byte stack frames. On ppc64 ABIv1 this is too small and a callee could corrupt the stack by writing to the parameter save area (starting at offset 48). Signed-off-by: Anton Blanchard <anton@samba.org> --- arch/powerpc/include/asm/irqflags.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)