On 9/24/20 5:20 AM, Coiby Xu wrote: > Use __8 to replace int and remove the unnecessary __bitwise type attribute. > > Found by sparse, Greg's right, don't change the public header. You could try this in the Greybus code to eliminate the warning, but I haven't tried it (and for all I know it's not a good idea): uinfo->type = (__force snd_ctl_elem_type_t)info->type; -Alex > $ make C=2 drivers/staging/greybus/ > drivers/staging/greybus/audio_topology.c:185:24: warning: cast to restricted snd_ctl_elem_type_t > drivers/staging/greybus/audio_topology.c:679:14: warning: restricted snd_ctl_elem_iface_t degrades to integer > drivers/staging/greybus/audio_topology.c:906:14: warning: restricted snd_ctl_elem_iface_t degrades to integer > > Signed-off-by: Coiby Xu <coiby.xu@xxxxxxxxx> > --- > drivers/staging/greybus/audio_topology.c | 2 +- > include/uapi/sound/asound.h | 4 ++-- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c > index 56bf1a4f95ad..f6023ff390c2 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 = info->type; > > switch (info->type) { > case GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN: > diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h > index 535a7229e1d9..8e71a95644ab 100644 > --- a/include/uapi/sound/asound.h > +++ b/include/uapi/sound/asound.h > @@ -950,7 +950,7 @@ struct snd_ctl_card_info { > unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ > }; > > -typedef int __bitwise snd_ctl_elem_type_t; > +typedef __u8 snd_ctl_elem_type_t; > #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ > #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ > #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ > @@ -960,7 +960,7 @@ typedef int __bitwise snd_ctl_elem_type_t; > #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ > #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 > > -typedef int __bitwise snd_ctl_elem_iface_t; > +typedef __u8 snd_ctl_elem_iface_t; > #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ > #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ > #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ > _______________________________________________ greybus-dev mailing list greybus-dev@xxxxxxxxxxxxxxxx https://lists.linaro.org/mailman/listinfo/greybus-dev
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