On Sun, 26 Jul 2020 10:59:31 +0800
Tingwei Zhang <[email protected]> wrote:
> --- a/drivers/hwtracing/stm/ftrace.c
> +++ b/drivers/hwtracing/stm/ftrace.c
> @@ -37,8 +37,9 @@ static void notrace
> stm_ftrace_write(struct trace_export *export, const void *buf, unsigned int
> len)
> {
> struct stm_ftrace *stm = container_of(export, struct stm_ftrace,
> ftrace);
> + unsigned int cpu = smp_processor_id();
Probably should add a comment to the above stating that this is called
from the tracing system with preemption disabled.
Other than my two comments:
Reviewed-by: Steven Rostedt (VMware) <[email protected]>
-- Steve
>
> - stm_source_write(&stm->data, STM_FTRACE_CHAN, buf, len);
> + stm_source_write(&stm->data, STM_FTRACE_CHAN + cpu, buf, len);
> }
>
> static int stm_ftrace_link(struct stm_source_data *data)
