[alsa-devel] [PATCH v2] sound: dmasound_atari: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: m68k):
sound/oss/dmasound/dmasound_atari.c: warning: this statement may fall through [-Wimplicit-fallthrough=]: => 1449:24
Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find.
Reported-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com --- Changes in v2: - Update code so switch and case statements are at the same indent.
sound/oss/dmasound/dmasound_atari.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/sound/oss/dmasound/dmasound_atari.c b/sound/oss/dmasound/dmasound_atari.c index 83653683fd68..823ccfa089b2 100644 --- a/sound/oss/dmasound/dmasound_atari.c +++ b/sound/oss/dmasound/dmasound_atari.c @@ -1432,25 +1432,25 @@ static int FalconMixerIoctl(u_int cmd, u_long arg) { int data; switch (cmd) { - case SOUND_MIXER_READ_RECMASK: + case SOUND_MIXER_READ_RECMASK: return IOCTL_OUT(arg, SOUND_MASK_MIC); - case SOUND_MIXER_READ_DEVMASK: + case SOUND_MIXER_READ_DEVMASK: return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_MIC | SOUND_MASK_SPEAKER); - case SOUND_MIXER_READ_STEREODEVS: + case SOUND_MIXER_READ_STEREODEVS: return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_MIC); - case SOUND_MIXER_READ_VOLUME: + case SOUND_MIXER_READ_VOLUME: return IOCTL_OUT(arg, VOLUME_ATT_TO_VOXWARE(dmasound.volume_left) | VOLUME_ATT_TO_VOXWARE(dmasound.volume_right) << 8); - case SOUND_MIXER_READ_CAPS: + case SOUND_MIXER_READ_CAPS: return IOCTL_OUT(arg, SOUND_CAP_EXCL_INPUT); - case SOUND_MIXER_WRITE_MIC: + case SOUND_MIXER_WRITE_MIC: IOCTL_IN(arg, data); tt_dmasnd.input_gain = RECLEVEL_VOXWARE_TO_GAIN(data & 0xff) << 4 | RECLEVEL_VOXWARE_TO_GAIN(data >> 8 & 0xff); - /* fall thru, return set value */ - case SOUND_MIXER_READ_MIC: + /* fall through - return set value */ + case SOUND_MIXER_READ_MIC: return IOCTL_OUT(arg, RECLEVEL_GAIN_TO_VOXWARE(tt_dmasnd.input_gain >> 4 & 0xf) | RECLEVEL_GAIN_TO_VOXWARE(tt_dmasnd.input_gain & 0xf) << 8);
On Mon, Jul 29, 2019 at 03:54:54PM -0500, Gustavo A. R. Silva wrote:
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: m68k):
sound/oss/dmasound/dmasound_atari.c: warning: this statement may fall through [-Wimplicit-fallthrough=]: => 1449:24
Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find.
Reported-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com
Reviewed-by: Kees Cook keescook@chromium.org
-Kees
Changes in v2:
- Update code so switch and case statements are at the same indent.
sound/oss/dmasound/dmasound_atari.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/sound/oss/dmasound/dmasound_atari.c b/sound/oss/dmasound/dmasound_atari.c index 83653683fd68..823ccfa089b2 100644 --- a/sound/oss/dmasound/dmasound_atari.c +++ b/sound/oss/dmasound/dmasound_atari.c @@ -1432,25 +1432,25 @@ static int FalconMixerIoctl(u_int cmd, u_long arg) { int data; switch (cmd) {
case SOUND_MIXER_READ_RECMASK:
- case SOUND_MIXER_READ_RECMASK: return IOCTL_OUT(arg, SOUND_MASK_MIC);
case SOUND_MIXER_READ_DEVMASK:
- case SOUND_MIXER_READ_DEVMASK: return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_MIC | SOUND_MASK_SPEAKER);
case SOUND_MIXER_READ_STEREODEVS:
- case SOUND_MIXER_READ_STEREODEVS: return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_MIC);
case SOUND_MIXER_READ_VOLUME:
- case SOUND_MIXER_READ_VOLUME: return IOCTL_OUT(arg, VOLUME_ATT_TO_VOXWARE(dmasound.volume_left) | VOLUME_ATT_TO_VOXWARE(dmasound.volume_right) << 8);
case SOUND_MIXER_READ_CAPS:
- case SOUND_MIXER_READ_CAPS: return IOCTL_OUT(arg, SOUND_CAP_EXCL_INPUT);
case SOUND_MIXER_WRITE_MIC:
- case SOUND_MIXER_WRITE_MIC: IOCTL_IN(arg, data); tt_dmasnd.input_gain = RECLEVEL_VOXWARE_TO_GAIN(data & 0xff) << 4 | RECLEVEL_VOXWARE_TO_GAIN(data >> 8 & 0xff);
/* fall thru, return set value */
case SOUND_MIXER_READ_MIC:
/* fall through - return set value */
- case SOUND_MIXER_READ_MIC: return IOCTL_OUT(arg, RECLEVEL_GAIN_TO_VOXWARE(tt_dmasnd.input_gain >> 4 & 0xf) | RECLEVEL_GAIN_TO_VOXWARE(tt_dmasnd.input_gain & 0xf) << 8);
-- 2.22.0
On Mon, Jul 29, 2019 at 10:55 PM Gustavo A. R. Silva gustavo@embeddedor.com wrote:
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: m68k):
sound/oss/dmasound/dmasound_atari.c: warning: this statement may fall through [-Wimplicit-fallthrough=]: => 1449:24
Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find.
Reported-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com
Changes in v2:
- Update code so switch and case statements are at the same indent.
Thanks, this time it works as expected. Tested-by: Geert Uytterhoeven geert@linux-m68k.org
Gr{oetje,eeting}s,
Geert
On Mon, 29 Jul 2019 22:54:54 +0200, Gustavo A. R. Silva wrote:
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: m68k):
sound/oss/dmasound/dmasound_atari.c: warning: this statement may fall through [-Wimplicit-fallthrough=]: => 1449:24
Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find.
Reported-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com
Changes in v2:
- Update code so switch and case statements are at the same indent.
Applied, thanks.
Takashi
participants (4)
-
Geert Uytterhoeven
-
Gustavo A. R. Silva
-
Kees Cook
-
Takashi Iwai