From 9b5e3ff6b9baa77548c6cb832780162055733c67 Mon Sep 17 00:00:00 2001 From: Chunyan Zhang Date: Mon, 21 Nov 2016 15:57:22 +0800 Subject: [PATCH] stm dummy: Mark dummy_stm_packet() with notrace If CONFIG_STM_SOURCE_FTRACE is selected, Function trace data can be writen to sink via STM, all functions that related to writing data packets to STM should be marked 'notrace' to avoid being traced by Ftrace, otherwise the program would stall into an endless loop. Link: http://lkml.kernel.org/r/1479715043-6534-6-git-send-email-zhang.chunyan@linaro.org Signed-off-by: Chunyan Zhang Acked-by: Alexander Shishkin Signed-off-by: Steven Rostedt --- drivers/hwtracing/stm/dummy_stm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/stm/dummy_stm.c b/drivers/hwtracing/stm/dummy_stm.c index a86612d989f9..c5f94ca31c4d 100644 --- a/drivers/hwtracing/stm/dummy_stm.c +++ b/drivers/hwtracing/stm/dummy_stm.c @@ -21,7 +21,7 @@ #include #include -static ssize_t +static ssize_t notrace dummy_stm_packet(struct stm_data *stm_data, unsigned int master, unsigned int channel, unsigned int packet, unsigned int flags, unsigned int size, const unsigned char *payload)