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lib/zstd: convert constants to defines 

These constants are really used internally by zstd and including
linux/zstd.h into users results in the following warnings:

In file included from fs/btrfs/zstd.c:19:
./include/linux/zstd.h:798:21: warning: ‘ZSTD_skippableHeaderSize’ defined but not used [-Wunused-const-variable=]
  798 | static const size_t ZSTD_skippableHeaderSize = 8;
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/zstd.h:796:21: warning: ‘ZSTD_frameHeaderSize_max’ defined but not used [-Wunused-const-variable=]
  796 | static const size_t ZSTD_frameHeaderSize_max = ZSTD_FRAMEHEADERSIZE_MAX;
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/zstd.h:795:21: warning: ‘ZSTD_frameHeaderSize_min’ defined but not used [-Wunused-const-variable=]
  795 | static const size_t ZSTD_frameHeaderSize_min = ZSTD_FRAMEHEADERSIZE_MIN;
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/zstd.h:794:21: warning: ‘ZSTD_frameHeaderSize_prefix’ defined but not used [-Wunused-const-variable=]
  794 | static const size_t ZSTD_frameHeaderSize_prefix = 5;

So fix those warnings by turning the constants into defines.

Reviewed-by: Nick Terrell <terrelln@fb.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2021-01-22 11:58:04 +02:00 committed by David Sterba
parent 8c31a3dbaa
commit 71c36788b9
1 changed files with 4 additions and 4 deletions
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8
include/linux/zstd.h
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@ -791,11 +791,11 @@ size_t ZSTD_DStreamOutSize(void);
/* for static allocation */
#define ZSTD_FRAMEHEADERSIZE_MAX 18
#define ZSTD_FRAMEHEADERSIZE_MIN 6
static const size_t ZSTD_frameHeaderSize_prefix = 5;
static const size_t ZSTD_frameHeaderSize_min = ZSTD_FRAMEHEADERSIZE_MIN;
static const size_t ZSTD_frameHeaderSize_max = ZSTD_FRAMEHEADERSIZE_MAX;
#define ZSTD_frameHeaderSize_prefix 5
#define ZSTD_frameHeaderSize_min ZSTD_FRAMEHEADERSIZE_MIN
#define ZSTD_frameHeaderSize_max ZSTD_FRAMEHEADERSIZE_MAX
/* magic number + skippable frame length */
static const size_t ZSTD_skippableHeaderSize = 8;
#define ZSTD_skippableHeaderSize 8
/*-*************************************