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ALSA: Allow const arrays for legacy resource management helpers

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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.

Link: https://lore.kernel.org/r/20200105144823.29547-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-01-05 15:47:16 +01:00
parent 8be03a7177
commit f5f87abfb7
1 changed files with 3 additions and 3 deletions
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6
include/sound/initval.h
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@ -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")) {