diff options
| author | Chunyan Zhang <zhang.chunyan@linaro.org> | 2016-11-21 15:57:23 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2016-11-22 17:48:04 -0500 |
| commit | 9dfed80d87ca2c365cd1004a91ef4ed716c8e44e (patch) | |
| tree | 108f7ab74509b2245f4bcd02bdf21cc6b1444c90 /include/linux/stm.h | |
| parent | 9b5e3ff6b9baa77548c6cb832780162055733c67 (diff) | |
stm: Mark the functions of writing STM 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/1479715043-6534-7-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>
Diffstat (limited to 'include/linux/stm.h')
| -rw-r--r-- | include/linux/stm.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/stm.h b/include/linux/stm.h index 8369d8a8cabd..210ff2292361 100644 --- a/include/linux/stm.h +++ b/include/linux/stm.h @@ -133,7 +133,7 @@ int stm_source_register_device(struct device *parent, struct stm_source_data *data); void stm_source_unregister_device(struct stm_source_data *data); -int stm_source_write(struct stm_source_data *data, unsigned int chan, - const char *buf, size_t count); +int notrace stm_source_write(struct stm_source_data *data, unsigned int chan, + const char *buf, size_t count); #endif /* _STM_H_ */ |