(struct gb_audio_ctl_elem_info*)->type has the type of __u8 so there is no concern about the byte order. __force is safe to use.
Found by sparse,
$ make C=2 drivers/staging/greybus/ drivers/staging/greybus/audio_topology.c:185:24: warning: cast to restricted snd_ctl_elem_type_t
Suggested-by: Alex Elder elder@linaro.org Signed-off-by: Coiby Xu coiby.xu@gmail.com --- drivers/staging/greybus/audio_topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c index 2091031659de..662e3e8b4b63 100644 --- a/drivers/staging/greybus/audio_topology.c +++ b/drivers/staging/greybus/audio_topology.c @@ -182,7 +182,7 @@ static int gbcodec_mixer_ctl_info(struct snd_kcontrol *kcontrol, /* update uinfo */ uinfo->access = data->access; uinfo->count = data->vcount; - uinfo->type = (snd_ctl_elem_type_t)info->type; + uinfo->type = (__force snd_ctl_elem_type_t)info->type;
switch (info->type) { case GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN: