V4L/DVB: drivers/media: Make static data tables and strings const
Making static data const avoids allocation of additional r/w memory and
reduces initialisation time. It also provides some additional opportunities
for compiler optimisations.
Signed-off-by: Lawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c
index 4f383cd..54b7fcd 100644
--- a/drivers/media/video/cx88/cx88-alsa.c
+++ b/drivers/media/video/cx88/cx88-alsa.c
@@ -94,7 +94,7 @@
****************************************************************************/
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
-static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
+static const char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
module_param_array(enable, bool, NULL, 0444);
@@ -131,7 +131,7 @@
{
struct cx88_audio_buffer *buf = chip->buf;
struct cx88_core *core=chip->core;
- struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
+ const struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
/* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
cx_clear(MO_AUD_DMACNTRL, 0x11);
@@ -197,7 +197,7 @@
/*
* BOARD Specific: IRQ dma bits
*/
-static char *cx88_aud_irqs[32] = {
+static const char *cx88_aud_irqs[32] = {
"dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */
NULL, /* reserved */
"dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */
@@ -308,7 +308,7 @@
* Digital hardware definition
*/
#define DEFAULT_FIFO_SIZE 4096
-static struct snd_pcm_hardware snd_cx88_digital_hw = {
+static const struct snd_pcm_hardware snd_cx88_digital_hw = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -533,7 +533,7 @@
/*
* create a PCM device
*/
-static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
+static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, const char *name)
{
int err;
struct snd_pcm *pcm;
@@ -614,7 +614,7 @@
static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0);
-static struct snd_kcontrol_new snd_cx88_volume = {
+static const struct snd_kcontrol_new snd_cx88_volume = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
@@ -656,7 +656,7 @@
return ret;
}
-static struct snd_kcontrol_new snd_cx88_dac_switch = {
+static const struct snd_kcontrol_new snd_cx88_dac_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Playback Switch",
.info = snd_ctl_boolean_mono_info,
@@ -665,7 +665,7 @@
.private_value = (1<<8),
};
-static struct snd_kcontrol_new snd_cx88_source_switch = {
+static const struct snd_kcontrol_new snd_cx88_source_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Capture Switch",
.info = snd_ctl_boolean_mono_info,
@@ -683,7 +683,7 @@
* Only boards with eeprom and byte 1 at eeprom=1 have it
*/
-static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = {
+static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitdata = {
{0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
{0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
{0, }