[PATCH] mkfs.ubifs: remove ZSTD_CLEVEL_DEFAULT for backwards compatibillity

[David Oberhollenzer <david.oberhollenzer@xxxxxxxxxxxxx>]

Support for ZSTD compression has been added recently through the ZSTD
library.

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@xxxxxxxxxxxxx>
---
 ubifs-utils/mkfs.ubifs/compr.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/ubifs-utils/mkfs.ubifs/compr.c b/ubifs-utils/mkfs.ubifs/compr.c
index 6239835..9eade89 100644
--- 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;
-- 
2.21.0


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