From: Coiby Xu <coiby.xu@gmail.com>
Date: Fri, 2 Oct 2020 23:30:56 +0000 (+0800)
Subject: staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6c75a92a0065a009429cec2c69f922f07cbbcd1e;p=linux.git

staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t

(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>
Link: https://lore.kernel.org/r/20201002233057.74462-3-coiby.xu@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
index 2091031659de3..662e3e8b4b634 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: