/* * CRC32 using the polynomial from IEEE-802.3 * * Authors: Lasse Collin * Igor Pavlov * * This file has been put into the public domain. * You can do whatever you want with this file. */ /* * This is not the fastest implementation, but it is pretty compact. * The fastest versions of xz_crc32() on modern CPUs without hardware * accelerated CRC instruction are 3-5 times as fast as this version, * but they are bigger and use more memory for the lookup table. */ #include "xz_private.h" /* * STATIC_RW_DATA is used in the pre-boot environment on some architectures. * See for details. */ #ifndef STATIC_RW_DATA # define STATIC_RW_DATA static #endif STATIC_RW_DATA uint32_t xz_crc32_table[256]; XZ_EXTERN void xz_crc32_init(void) { const uint32_t poly = 0xEDB88320; uint32_t i; uint32_t j; uint32_t r; for (i = 0; i < 256; ++i) { r = i; for (j = 0; j < 8; ++j) r = (r >> 1) ^ (poly & ~((r & 1) - 1)); xz_crc32_table[i] = r; } return; } XZ_EXTERN uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc) { crc = ~crc; while (size != 0) { crc = xz_crc32_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8); --size; } return ~crc; } net-next plumbingsTobias Klauser
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authorColin Ian King <colin.king@canonical.com>2017-01-11 15:36:20 +0000
committerMark Brown <broonie@kernel.org>2017-01-18 16:32:44 +0000
commitb98acbff9a05b371c5f0ca6e44a3af8ce9274379 (patch)
treed6835885f859a456e62ce93621041138d6a54f9b /sound/soc/codecs/ak4554.c
parentd00b74613fb18dfd0a5aa99270ee2e72d5c808d7 (diff)
regulator: twl6030: fix range comparison, allowing vsel = 59
The range min_uV > 1350000 && min_uV <= 150000 is never reachable because of a typo in the previous range check and hence vsel = 59 is never reached. Fix the previous range check to enable the vsel = 59 setting. Fixes CoverityScan CID#728454 ("Logially dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/ak4554.c')