This implementation provides standard CRC-16 algorithm with polynomial x^16 + x^15 + x^2 + 1.
Signed-off-by: Pali Rohár pali@kernel.org --- fs/ubifs/Makefile | 2 +- include/u-boot/crc.h | 3 +++ lib/Makefile | 1 + {fs/ubifs => lib}/crc16.c | 0 4 files changed, 5 insertions(+), 1 deletion(-) rename {fs/ubifs => lib}/crc16.c (100%)
diff --git a/fs/ubifs/Makefile b/fs/ubifs/Makefile index 64d64472945e..631ba5f438cf 100644 --- a/fs/ubifs/Makefile +++ b/fs/ubifs/Makefile @@ -9,5 +9,5 @@
obj-y := ubifs.o io.o super.o sb.o master.o lpt.o obj-y += lpt_commit.o scan.o lprops.o -obj-y += tnc.o tnc_misc.o debug.o crc16.o budget.o +obj-y += tnc.o tnc_misc.o debug.o budget.o obj-y += log.o orphan.o recovery.o replay.o gc.o diff --git a/include/u-boot/crc.h b/include/u-boot/crc.h index eba8edfb4f31..5174bd7ac413 100644 --- a/include/u-boot/crc.h +++ b/include/u-boot/crc.h @@ -25,6 +25,9 @@ */ unsigned int crc8(unsigned int crc_start, const unsigned char *vptr, int len);
+/* lib/crc16.c - 16 bit CRC with polynomial x^16 + x^15 + x^2 + 1 */ +uint16_t crc16(uint16_t crc, const unsigned char *buffer, size_t len); + /* lib/crc16-ccitt.c - 16 bit CRC with polynomial x^16+x^12+x^5+1 (CRC-CCITT) */ uint16_t crc16_ccitt(uint16_t crc_start, const unsigned char *s, int len); /** diff --git a/lib/Makefile b/lib/Makefile index b4f03cc149d3..0d0261b8986f 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -37,6 +37,7 @@ obj-$(CONFIG_CIRCBUF) += circbuf.o endif
obj-y += crc8.o +obj-y += crc16.o obj-y += crc16-ccitt.o obj-$(CONFIG_ERRNO_STR) += errno_str.o obj-$(CONFIG_FIT) += fdtdec_common.o diff --git a/fs/ubifs/crc16.c b/lib/crc16.c similarity index 100% rename from fs/ubifs/crc16.c rename to lib/crc16.c