On Wed 2022-02-02 15:30:33, Waiman Long wrote: > For *scnprintf(), vsnprintf() is always called even if the input size is > 0. That is a waste of time, so just return 0 in this case. > > Note that vsnprintf() will never return -1 to indicate an error. So > skipping the call to vsnprintf() when size is 0 will have no functional > impact at all. > > Signed-off-by: Waiman Long <longman@xxxxxxxxxx> > Acked-by: David Rientjes <rientjes@xxxxxxxxxx> > Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> > Acked-by: Roman Gushchin <guro@xxxxxx> Reviewed-by: Petr Mladek <pmladek@xxxxxxxx> Best Regards, Petr
