Re: [PATCH v2 3/5] zstd: move ZSTD_MAX_CLEVEL to zstd_lib.h

[Sergey Senozhatsky]

On (26/07/28 17:29), Haoqin Huang wrote:
[..]
> diff --git a/include/linux/zstd_lib.h b/include/linux/zstd_lib.h
> index e295d4125dde..f4b26844e53a 100644
> --- a/include/linux/zstd_lib.h
> +++ b/include/linux/zstd_lib.h
> @@ -1241,6 +1241,7 @@ ZSTDLIB_API size_t ZSTD_sizeof_DDict(const ZSTD_DDict* ddict);
>  #define ZSTD_SEARCHLOG_MIN        1
>  #define ZSTD_MINMATCH_MAX         7   /* only for ZSTD_fast, other strategies are limited to 6 */
>  #define ZSTD_MINMATCH_MIN         3   /* only for ZSTD_btopt+, faster strategies are limited to 4 */
> +#define ZSTD_MAX_CLEVEL		22
>  #define ZSTD_TARGETLENGTH_MAX    ZSTD_BLOCKSIZE_MAX
>  #define ZSTD_TARGETLENGTH_MIN     0   /* note : comparing this constant to an unsigned results in a tautological test */
>  #define ZSTD_STRATEGY_MIN        ZSTD_fast
> diff --git a/lib/zstd/compress/clevels.h b/lib/zstd/compress/clevels.h
> index 6ab8be6532ef..06565e064456 100644
> --- a/lib/zstd/compress/clevels.h
> +++ b/lib/zstd/compress/clevels.h
> @@ -17,8 +17,6 @@
>  
>  /*-=====  Pre-defined compression levels  =====-*/
>  
> -#define ZSTD_MAX_CLEVEL     22
> -
>  __attribute__((__unused__))

Sashiko made a good point.  Can we use zstd_max_clevel() instead?