There are 4 warnings there: drivers/devfreq/devfreq.c:707: warning: Function parameter or member 'val' not described in 'qos_min_notifier_call' drivers/devfreq/devfreq.c:707: warning: Function parameter or member 'ptr' not described in 'qos_min_notifier_call' drivers/devfreq/devfreq.c:717: warning: Function parameter or member 'val' not described in 'qos_max_notifier_call' drivers/devfreq/devfreq.c:717: warning: Function parameter or member 'ptr' not described in 'qos_max_notifier_call' It turns that neither val nor ptr are actually used on those function, so document as such. Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> --- To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover. See [PATCH 00/22] at: https://lore.kernel.org/all/cover.1656409369.git.mchehab@xxxxxxxxxx/ drivers/devfreq/devfreq.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 01474daf4548..3020855d8400 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -700,6 +700,8 @@ static int qos_notifier_call(struct devfreq *devfreq) /** * qos_min_notifier_call() - Callback for QoS min_freq changes. * @nb: Should be devfreq->nb_min + * @val: not used + * @ptr: not used */ static int qos_min_notifier_call(struct notifier_block *nb, unsigned long val, void *ptr) @@ -710,6 +712,8 @@ static int qos_min_notifier_call(struct notifier_block *nb, /** * qos_max_notifier_call() - Callback for QoS max_freq changes. * @nb: Should be devfreq->nb_max + * @val: not used + * @ptr: not used */ static int qos_max_notifier_call(struct notifier_block *nb, unsigned long val, void *ptr) -- 2.36.1