[PATCH 3/5] crc16: Move standard CRC-16 implementation from ubifs to lib

[Stefan Roese]

On 4/12/22 11:20, Pali Rohár wrote:
> This implementation provides standard CRC-16 algorithm with polynomial
> x^16 + x^15 + x^2 + 1.
> 
> Signed-off-by: Pali Rohár <pali at kernel.org>

Reviewed-by: Stefan Roese <sr at denx.de>

Thanks,
Stefan

> ---
>   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

Viele Grüße,
Stefan Roese

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