mkfs.ubifs: remove ZSTD_CLEVEL_DEFAULT for backwards compatibillity

Support for ZSTD compression has been added recently through the ZSTD
library, which is famously known for its incredibly well designed and
stable API.

This patch removes usage of ZSTD_CLEVEL_DEFAULT, which isn't exposed
in older versions of the ZSTD library, and replaces it with with the
constant parameter 0. According to the documentation this should then
use a reasonable default (which is defined internally).

Other possible approachs include defining ZSTD_CLEVEL_DEFAULT to 3
(the value it _currently_ has) if it isn't defined. This patch chooses
the approach of passing 0 since this seems to be encouraged by the
existing documentation.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

diff --git a/ubifs-utils/mkfs.ubifs/compr.c b/ubifs-utils/mkfs.ubifs/compr.c
index 62398357c53512bc9a7b16cf597de0ad34ac4539..9eade89ffcfb00d8abbf681fb69b4bccb4aa96ff 100644 (file)
--- a/ubifs-utils/mkfs.ubifs/compr.c
+++ b/ubifs-utils/mkfs.ubifs/compr.c
@@ -120,8 +120,7 @@ static int zstd_compress(void *in_buf, size_t in_len, void *out_buf,
 {
        size_t ret;
 
-       ret = ZSTD_compressCCtx(zctx, out_buf, *out_len, in_buf, in_len,
-                               ZSTD_CLEVEL_DEFAULT);
+       ret = ZSTD_compressCCtx(zctx, out_buf, *out_len, in_buf, in_len, 0);
        if (ZSTD_isError(ret)) {
                errcnt += 1;
                return -1;