From c3a4d1c3ee1f528a62e0de55ed034fa6d23c0add Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 14 Nov 2019 12:57:14 -0700 Subject: common: Drop linux/crc8.h We have an existing U-Boot header for the one function that this defines. Use that instead of the linux/ one. Move over the nice comment. Signed-off-by: Simon Glass Reviewed-by: Tom Rini --- include/u-boot/crc.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'include/u-boot') diff --git a/include/u-boot/crc.h b/include/u-boot/crc.h index 788ef29a17b..b42bcda2b31 100644 --- a/include/u-boot/crc.h +++ b/include/u-boot/crc.h @@ -8,7 +8,19 @@ #ifndef _UBOOT_CRC_H #define _UBOOT_CRC_H -/* lib/crc8.c */ +/** + * crc8() - Calculate and return CRC-8 of the data + * + * This uses an x^8 + x^2 + x + 1 polynomial. A table-based algorithm would + * be faster, but for only a few bytes it isn't worth the code size + * + * lib/crc8.c + * + * @crc_start: CRC8 start value + * @vptr: Buffer to checksum + * @len: Length of buffer in bytes + * @return CRC8 checksum + */ unsigned int crc8(unsigned int crc_start, const unsigned char *vptr, int len); /* lib/crc16.c - 16 bit CRC with polynomial x^16+x^12+x^5+1 (CRC-CCITT) */ -- cgit v1.3.1