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| author |   Mikhail Lappo <miklelappo@gmail.com> | 2024-04-29 16:01:07 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-04 18:57:21 +0200 |
| commit | ee27f44e1592d849cb90b1f1c38cae0c7e32defa (patch) | |
| tree | 325f48694079618d7344856c87a08d5db67d7526 /drivers/hwtracing/stm/core.c | |
| parent | stm class: Add source type (diff) | |
| download | wireguard-linux-ee27f44e1592d849cb90b1f1c38cae0c7e32defa.tar.xz wireguard-linux-ee27f44e1592d849cb90b1f1c38cae0c7e32defa.zip | |
stm class: Propagate source type to protocols
Pass stm source type via stm_write() to allow different handling on
protocol level.
The measure above should allow protocol level encoder to differentiate
and accordingly pack the messages. As an example SyS-T might get use of
ftrace message ID's and instead of applying regular header, pack them
as SyS-T catalog or SyS-T Structured Binary Data message to allow proper
decoding on the other side.
Signed-off-by: Mikhail Lappo <miklelappo@gmail.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240429130119.1518073-4-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/stm/core.c')
| -rw-r--r-- | drivers/hwtracing/stm/core.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index 20895d391562..ccf39a80dc4f 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -600,7 +600,7 @@ EXPORT_SYMBOL_GPL(stm_data_write); static ssize_t notrace stm_write(struct stm_device *stm, struct stm_output *output, - unsigned int chan, const char *buf, size_t count) + unsigned int chan, const char *buf, size_t count, struct stm_source_data *source) { int err; @@ -608,7 +608,7 @@ stm_write(struct stm_device *stm, struct stm_output *output, if (!stm->pdrv) return -ENODEV; - err = stm->pdrv->write(stm->data, output, chan, buf, count); + err = stm->pdrv->write(stm->data, output, chan, buf, count, source); if (err < 0) return err; @@ -657,7 +657,7 @@ static ssize_t stm_char_write(struct file *file, const char __user *buf, pm_runtime_get_sync(&stm->dev); - count = stm_write(stm, &stmf->output, 0, kbuf, count); + count = stm_write(stm, &stmf->output, 0, kbuf, count, NULL); pm_runtime_mark_last_busy(&stm->dev); pm_runtime_put_autosuspend(&stm->dev); @@ -1299,7 +1299,7 @@ int notrace stm_source_write(struct stm_source_data *data, stm = srcu_dereference(src->link, &stm_source_srcu); if (stm) - count = stm_write(stm, &src->output, chan, buf, count); + count = stm_write(stm, &src->output, chan, buf, count, data); else count = -ENODEV; |