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staging: greybus: audio: Fix sparse warning.

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Sparse complains that:
   warning: restricted send_ctl_elem_iface_t degrades to integer.

I have looked at this code, and the code is fine as-is. Normally we
would frown on using the __force directive to silence Sparse warnings
but in this case it's fine. Case statements can't be made into __bitwise
types. We also can't change the type of "ctl->iface" either because that
is part of the user space API.

So just add a (__force int) to make the warning go away.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rajat Asthana <thisisrast7@gmail.com>
Link: https://lore.kernel.org/r/20210519134119.848055-1-thisisrast7@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rajat Asthana 2021-05-19 19:11:19 +05:30 committed by Greg Kroah-Hartman
parent b9f38e913a
commit 9a032e3f7e
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/greybus/audio_topology.c
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@ -676,7 +676,7 @@ static int gbaudio_tplg_create_kcontrol(struct gbaudio_module_info *gb,
struct gbaudio_ctl_pvt *ctldata;
switch (ctl->iface) {
case SNDRV_CTL_ELEM_IFACE_MIXER:
case (__force int)SNDRV_CTL_ELEM_IFACE_MIXER:
switch (ctl->info.type) {
case GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED:
ret = gbaudio_tplg_create_enum_kctl(gb, kctl, ctl);
@ -903,7 +903,7 @@ static int gbaudio_tplg_create_wcontrol(struct gbaudio_module_info *gb,
int ret;
switch (ctl->iface) {
case SNDRV_CTL_ELEM_IFACE_MIXER:
case (__force int)SNDRV_CTL_ELEM_IFACE_MIXER:
switch (ctl->info.type) {
case GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED:
ret = gbaudio_tplg_create_enum_ctl(gb, kctl, ctl);