| From | Christophe Leroy <> | Subject | [PATCH v2 05/13] powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32 | Date | Mon, 20 Dec 2021 16:38:16 +0000 |
| |
PPC32 mcount() caller already saves LR on stack, no need to save it again.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> --- arch/powerpc/kernel/trace/ftrace_32.S | 3 --- 1 file changed, 3 deletions(-)
diff --git a/arch/powerpc/kernel/trace/ftrace_32.S b/arch/powerpc/kernel/trace/ftrace_32.S index 0a02c0cb12d9..7e2fd729116b 100644 --- a/arch/powerpc/kernel/trace/ftrace_32.S +++ b/arch/powerpc/kernel/trace/ftrace_32.S @@ -53,9 +53,6 @@ _GLOBAL(ftrace_stub) blr _GLOBAL(ftrace_regs_caller) - /* Save the original return address in A's stack frame */ - stw r0,LRSAVE(r1) - /* Create our stack frame + pt_regs */ stwu r1,-INT_FRAME_SIZE(r1) -- 2.33.1
|