annotate that [fp, #-4] is the saved lr

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 06269ea..49a6ba9 100644 (file)
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -136,7 +136,7 @@ ENTRY(mcount)
        ldmia sp!, {r0-r3, pc}
 
 trace:
-       ldr r1, [fp, #-4]
+       ldr r1, [fp, #-4]                       @ lr of instrumented routine
        mov r0, lr
        sub r0, r0, #MCOUNT_INSN_SIZE
        mov lr, pc