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lib/lz4: remove back-compat wrappers

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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 <[email protected]>
Cc: Bongkyu Kim <[email protected]>
Cc: Rui Salvaterra <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Anton Vorontsov <[email protected]>
Cc: Colin Cross <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Tony Luck <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Sven Schmidt 2017-02-24 15:01:25 -08:00 • committed by Linus Torvalds
commit 69c78423b8
4 changed files with 0 additions and 156 deletions
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22
lib/lz4/lz4_compress.c
View file

@ -936,27 +936,5 @@ int LZ4_compress_fast_continue(LZ4_stream_t *LZ4_stream, const char *source,
}
EXPORT_SYMBOL(LZ4_compress_fast_continue);
/*-******************************
* For backwards compatibility
********************************/
int lz4_compress(const unsigned char *src, size_t src_len, unsigned char *dst,
size_t *dst_len, void *wrkmem) {
*dst_len = LZ4_compress_default(src, dst, src_len,
*dst_len, wrkmem);
/*
* Prior lz4_compress will return -1 in case of error
* and 0 on success
* while new LZ4_compress_fast/default
* returns 0 in case of error
* and the output length on success
*/
if (!*dst_len)
return -1;
else
return 0;
}
EXPORT_SYMBOL(lz4_compress);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("LZ4 compressor");

42
lib/lz4/lz4_decompress.c
View file

@ -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");

23
lib/lz4/lz4hc_compress.c
View file

@ -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");