lib/lz4: remove back-compat wrappers

Remove the functions introduced as wrappers for providing backwards
compatibility to the prior LZ4 version.  They're not needed anymore
since there's no callers left.

Link: http://lkml.kernel.org/r/1486321748-19085-6-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 23 deletions

diff --git a/lib/lz4/lz4hc_compress.c b/lib/lz4/lz4hc_compress.c
index e1fbf1561e55..176f03b83e56 100644
--- a/lib/lz4/lz4hc_compress.c
+++ b/lib/lz4/lz4hc_compress.c
@@ -765,28 +765,5 @@ int LZ4_saveDictHC(
 }
 EXPORT_SYMBOL(LZ4_saveDictHC);
 
-/*-******************************
- *	For backwards compatibility
- ********************************/
-int lz4hc_compress(const unsigned char *src, size_t src_len,
-	unsigned char *dst, size_t *dst_len, void *wrkmem)
-{
-	*dst_len = LZ4_compress_HC(src, dst, src_len,
-		*dst_len, LZ4HC_DEFAULT_CLEVEL, wrkmem);
-
-	/*
-	 * Prior lz4hc_compress will return -1 in case of error
-	 * and 0 on success
-	 * while new LZ4_compress_HC
-	 * returns 0 in case of error
-	 * and the output length on success
-	 */
-	if (!*dst_len)
-		return -1;
-	else
-		return 0;
-}
-EXPORT_SYMBOL(lz4hc_compress);
-
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DESCRIPTION("LZ4 HC compressor");