Commit eb27cf08 authored by Christian Gromm's avatar Christian Gromm Committed by Greg Kroah-Hartman
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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: default avatarChristian Gromm <christian.gromm@microchip.com>
Reported-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/1604494242-3414-1-git-send-email-christian.gromm@microchip.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 096f6490

drivers/staging/most/sound/sound.c

+2 −12
Original line number Diff line number Diff line
@@ -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++;

	}

}