[alsa-devel] [PATCH 47/68] ALSA: es1688: More constifications

Takashi Iwai tiwai at suse.de
Sun Jan 5 15:48:02 CET 2020


Apply const prefix to the static resource tables and init tables.

Just for minor optimization and no functional changes.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/isa/es1688/es1688.c     | 6 +++---
 sound/isa/es1688/es1688_lib.c | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index 9be89377171b..ff3a05ad99c0 100644
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -84,9 +84,9 @@ static int snd_es1688_legacy_create(struct snd_card *card,
 				    struct device *dev, unsigned int n)
 {
 	struct snd_es1688 *chip = card->private_data;
-	static long possible_ports[] = {0x220, 0x240, 0x260};
-	static int possible_irqs[] = {5, 9, 10, 7, -1};
-	static int possible_dmas[] = {1, 3, 0, -1};
+	static const long possible_ports[] = {0x220, 0x240, 0x260};
+	static const int possible_irqs[] = {5, 9, 10, 7, -1};
+	static const int possible_dmas[] = {1, 3, 0, -1};
 
 	int i, error;
 
diff --git a/sound/isa/es1688/es1688_lib.c b/sound/isa/es1688/es1688_lib.c
index 1568d0bfd1a8..1816e55c6edf 100644
--- a/sound/isa/es1688/es1688_lib.c
+++ b/sound/isa/es1688/es1688_lib.c
@@ -180,7 +180,7 @@ static int snd_es1688_probe(struct snd_es1688 *chip)
 
 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
 {
-	static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
+	static const int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
 	unsigned long flags;
 	int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
 
@@ -946,7 +946,7 @@ ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 
 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
 
-static unsigned char snd_es1688_init_table[][2] = {
+static const unsigned char snd_es1688_init_table[][2] = {
 	{ ES1688_MASTER_DEV, 0 },
 	{ ES1688_PCM_DEV, 0 },
 	{ ES1688_LINE_DEV, 0 },
-- 
2.16.4



More information about the Alsa-devel mailing list