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Groups > linux.kernel > #1567552 > unrolled thread
| Started by | Bhumika Goyal <bhumirks@gmail.com> |
|---|---|
| First post | 2017-01-26 16:50 +0100 |
| Last post | 2017-01-26 17:30 +0100 |
| Articles | 2 — 2 participants |
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[PATCH v2] sound: pci: cs46xx: constify snd_pcm_ops structures Bhumika Goyal <bhumirks@gmail.com> - 2017-01-26 16:50 +0100
Re: [PATCH v2] sound: pci: cs46xx: constify snd_pcm_ops structures Takashi Iwai <tiwai@suse.de> - 2017-01-26 17:30 +0100
| From | Bhumika Goyal <bhumirks@gmail.com> |
|---|---|
| Date | 2017-01-26 16:50 +0100 |
| Subject | [PATCH v2] sound: pci: cs46xx: constify snd_pcm_ops structures |
| Message-ID | <t3Utc-Hy-1@gated-at.bofh.it> |
Declare snd_pcm_ops structures as const as they are either stored in the
ops field of a snd_pcm_substream structure or passed as an argument to
the function snd_pcm_set_ops. The function argument and the ops field
are of type const, so snd_pcm_ops structures having this property
can be made const too.
File size before: sound/pci/cs46xx/cs46xx_lib.o
text data bss dec hex filename
26047 5304 16 31367 7a87 sound/pci/cs46xx/cs46xx_lib.o
File size after: sound/pci/cs46xx/cs46xx_lib.o
text data bss dec hex filename
27335 4036 16 31387 7a9b sound/pci/cs46xx/cs46xx_lib.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
Changes in v2:
* test build the patch with CONFIG_SND_CS46XX_NEW_DSP=y
sound/pci/cs46xx/cs46xx_lib.c | 40 ++++++++++++++++++++--------------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index fde3cd4..9a8b41f 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -72,18 +72,18 @@
static void amp_voyetra(struct snd_cs46xx *chip, int change);
#ifdef CONFIG_SND_CS46XX_NEW_DSP
-static struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
-static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
-static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
#endif
-static struct snd_pcm_ops snd_cs46xx_playback_ops;
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
-static struct snd_pcm_ops snd_cs46xx_capture_ops;
-static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_ops;
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
+static const struct snd_pcm_ops snd_cs46xx_capture_ops;
+static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
unsigned short reg,
@@ -1654,7 +1654,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
-static struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
.open = snd_cs46xx_playback_open_rear,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -1665,7 +1665,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.pointer = snd_cs46xx_playback_direct_pointer,
};
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
.open = snd_cs46xx_playback_open_rear,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -1677,7 +1677,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.ack = snd_cs46xx_playback_transfer,
};
-static struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
.open = snd_cs46xx_playback_open_clfe,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -1688,7 +1688,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.pointer = snd_cs46xx_playback_direct_pointer,
};
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
.open = snd_cs46xx_playback_open_clfe,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -1700,7 +1700,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.ack = snd_cs46xx_playback_transfer,
};
-static struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
.open = snd_cs46xx_playback_open_iec958,
.close = snd_cs46xx_playback_close_iec958,
.ioctl = snd_pcm_lib_ioctl,
@@ -1711,7 +1711,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.pointer = snd_cs46xx_playback_direct_pointer,
};
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
.open = snd_cs46xx_playback_open_iec958,
.close = snd_cs46xx_playback_close_iec958,
.ioctl = snd_pcm_lib_ioctl,
@@ -1725,7 +1725,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
#endif
-static struct snd_pcm_ops snd_cs46xx_playback_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_ops = {
.open = snd_cs46xx_playback_open,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -1736,7 +1736,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.pointer = snd_cs46xx_playback_direct_pointer,
};
-static struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
+static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
.open = snd_cs46xx_playback_open,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -1748,7 +1748,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.ack = snd_cs46xx_playback_transfer,
};
-static struct snd_pcm_ops snd_cs46xx_capture_ops = {
+static const struct snd_pcm_ops snd_cs46xx_capture_ops = {
.open = snd_cs46xx_capture_open,
.close = snd_cs46xx_capture_close,
.ioctl = snd_pcm_lib_ioctl,
@@ -1759,7 +1759,7 @@ static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
.pointer = snd_cs46xx_capture_direct_pointer,
};
-static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
+static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
.open = snd_cs46xx_capture_open,
.close = snd_cs46xx_capture_close,
.ioctl = snd_pcm_lib_ioctl,
--
1.9.1
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| From | Takashi Iwai <tiwai@suse.de> |
|---|---|
| Date | 2017-01-26 17:30 +0100 |
| Message-ID | <t3V5U-1ao-1@gated-at.bofh.it> |
| In reply to | #1567552 |
On Thu, 26 Jan 2017 16:41:05 +0100, Bhumika Goyal wrote: > > Declare snd_pcm_ops structures as const as they are either stored in the > ops field of a snd_pcm_substream structure or passed as an argument to > the function snd_pcm_set_ops. The function argument and the ops field > are of type const, so snd_pcm_ops structures having this property > can be made const too. > > File size before: sound/pci/cs46xx/cs46xx_lib.o > text data bss dec hex filename > 26047 5304 16 31367 7a87 sound/pci/cs46xx/cs46xx_lib.o > > File size after: sound/pci/cs46xx/cs46xx_lib.o > text data bss dec hex filename > 27335 4036 16 31387 7a9b sound/pci/cs46xx/cs46xx_lib.o > > Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> > --- > Changes in v2: > * test build the patch with CONFIG_SND_CS46XX_NEW_DSP=y Applied, thanks. Takashi
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