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Commit 9b5e3ff6 authored by Chunyan Zhang's avatar Chunyan Zhang Committed by Steven Rostedt
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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: default avatarChunyan Zhang <zhang.chunyan@linaro.org>
Acked-by: default avatarAlexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 22975be2

drivers/hwtracing/stm/dummy_stm.c

+1 −1
Original line number Diff line number Diff line
@@ -21,7 +21,7 @@ 
#include <linux/slab.h>

#include <linux/stm.h>



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)