[01/68] ALSA: Allow const arrays for legacy resource management helpers
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Message ID 20200105144823.29547-2-tiwai@suse.de
State New
Headers show
Series
  • ALSA: Constifications, take #2
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Commit Message

Takashi Iwai Jan. 5, 2020, 2:47 p.m. UTC
Declare the arrays passed to the helper functions for legacy resources
(mostly for ISA drivers) as const, so that each caller can make its
static data as const for minor optimizations, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/initval.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Patch
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diff --git a/include/sound/initval.h b/include/sound/initval.h
index 3ddae2b4177e..a1ff3b4865b4 100644
--- a/include/sound/initval.h
+++ b/include/sound/initval.h
@@ -37,7 +37,7 @@ 
 #define SNDRV_DEFAULT_PTR	SNDRV_DEFAULT_STR
 
 #ifdef SNDRV_LEGACY_FIND_FREE_IOPORT
-static long snd_legacy_find_free_ioport(long *port_table, long size)
+static long snd_legacy_find_free_ioport(const long *port_table, long size)
 {
 	while (*port_table != -1) {
 		if (request_region(*port_table, size, "ALSA test")) {
@@ -58,7 +58,7 @@  static irqreturn_t snd_legacy_empty_irq_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int snd_legacy_find_free_irq(int *irq_table)
+static int snd_legacy_find_free_irq(const int *irq_table)
 {
 	while (*irq_table != -1) {
 		if (!request_irq(*irq_table, snd_legacy_empty_irq_handler,
@@ -74,7 +74,7 @@  static int snd_legacy_find_free_irq(int *irq_table)
 #endif
 
 #ifdef SNDRV_LEGACY_FIND_FREE_DMA
-static int snd_legacy_find_free_dma(int *dma_table)
+static int snd_legacy_find_free_dma(const int *dma_table)
 {
 	while (*dma_table != -1) {
 		if (!request_dma(*dma_table, "ALSA Test DMA")) {