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coresight: Mark stm_generic_packet() with notrace

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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/1479715043-6534-4-git-send-email-zhang.chunyan@linaro.org

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Chunyan Zhang 2016-11-21 15:57:20 +08:00 committed by Steven Rostedt
parent 262e1f6e39
commit dea5d0e1fc
1 changed files with 1 additions and 1 deletions
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2
drivers/hwtracing/coresight/coresight-stm.c
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@ -406,7 +406,7 @@ static long stm_generic_set_options(struct stm_data *stm_data,
return 0;
}
static ssize_t stm_generic_packet(struct stm_data *stm_data,
static ssize_t notrace stm_generic_packet(struct stm_data *stm_data,
unsigned int master,
unsigned int channel,
unsigned int packet,