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, 42 deletions

diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c
index b5e00a19a7b4..bd3574312b82 100644
--- a/lib/lz4/lz4_decompress.c
+++ b/lib/lz4/lz4_decompress.c
@@ -493,46 +493,6 @@ int LZ4_decompress_fast_usingDict(const char *source, char *dest,
 		originalSize, 0, dictStart, dictSize);
 }
 
-/*-******************************
- *	For backwards compatibility
- ********************************/
-int lz4_decompress_unknownoutputsize(const unsigned char *src,
-	size_t src_len, unsigned char *dest, size_t *dest_len) {
-	*dest_len = LZ4_decompress_safe(src, dest,
-		src_len, *dest_len);
-
-	/*
-	 * Prior lz4_decompress_unknownoutputsize will return
-	 * 0 for success and a negative result for error
-	 * new LZ4_decompress_safe returns
-	 * - the length of data read on success
-	 * - and also a negative result on error
-	 * meaning when result > 0, we just return 0 here
-	 */
-	if (src_len > 0)
-		return 0;
-	else
-		return -1;
-}
-
-int lz4_decompress(const unsigned char *src, size_t *src_len,
-	unsigned char *dest, size_t actual_dest_len) {
-	*src_len = LZ4_decompress_fast(src, dest, actual_dest_len);
-
-	/*
-	 * Prior lz4_decompress will return
-	 * 0 for success and a negative result for error
-	 * new LZ4_decompress_fast returns
-	 * - the length of data read on success
-	 * - and also a negative result on error
-	 * meaning when result > 0, we just return 0 here
-	 */
-	if (*src_len > 0)
-		return 0;
-	else
-		return -1;
-}
-
 #ifndef STATIC
 EXPORT_SYMBOL(LZ4_decompress_safe);
 EXPORT_SYMBOL(LZ4_decompress_safe_partial);
@@ -542,8 +502,6 @@ EXPORT_SYMBOL(LZ4_decompress_safe_continue);
 EXPORT_SYMBOL(LZ4_decompress_fast_continue);
 EXPORT_SYMBOL(LZ4_decompress_safe_usingDict);
 EXPORT_SYMBOL(LZ4_decompress_fast_usingDict);
-EXPORT_SYMBOL(lz4_decompress_unknownoutputsize);
-EXPORT_SYMBOL(lz4_decompress);
 
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DESCRIPTION("LZ4 decompressor");