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drivers: staging: most: use swabXX functions of kernel 

This patch makes use of the swab16() and swab32() functions available
in the kernel instead of using own implementations.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/1604494242-3414-1-git-send-email-christian.gromm@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian Gromm 2020-11-04 13:50:42 +01:00 committed by Greg Kroah-Hartman
parent 096f64905f
commit eb27cf085c
1 changed files with 2 additions and 12 deletions
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14
drivers/staging/most/sound/sound.c
View File

@ -72,22 +72,12 @@ static struct list_head adpt_list;
SNDRV_PCM_INFO_INTERLEAVED | \
SNDRV_PCM_INFO_BLOCK_TRANSFER)
#define swap16(val) ( \
(((u16)(val) << 8) & (u16)0xFF00) | \
(((u16)(val) >> 8) & (u16)0x00FF))
#define swap32(val) ( \
(((u32)(val) << 24) & (u32)0xFF000000) | \
(((u32)(val) << 8) & (u32)0x00FF0000) | \
(((u32)(val) >> 8) & (u32)0x0000FF00) | \
(((u32)(val) >> 24) & (u32)0x000000FF))
static void swap_copy16(u16 *dest, const u16 *source, unsigned int bytes)
{
unsigned int i = 0;
while (i < (bytes / 2)) {
dest[i] = swap16(source[i]);
dest[i] = swab16(source[i]);
i++;
}
}
@ -109,7 +99,7 @@ static void swap_copy32(u32 *dest, const u32 *source, unsigned int bytes)
unsigned int i = 0;
while (i < bytes / 4) {
dest[i] = swap32(source[i]);
dest[i] = swab32(source[i]);
i++;
}
}