summaryrefslogtreecommitdiffstats
path: root/include/linux/zlib.h
diff options
context:
space:
mode:
authorSergey Senozhatsky <sergey.senozhatsky@gmail.com>2014-08-06 16:09:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 18:01:24 -0700
commit62e7ca5280fd8cbf523970757e13f0324ce0daa0 (patch)
tree868d7046eec27d64a88f6c3299eb85b2032538a3 /include/linux/zlib.h
parent0f9859ca92c9182bcb8f18c55cae1a04627cbb59 (diff)
downloadop-kernel-dev-62e7ca5280fd8cbf523970757e13f0324ce0daa0.zip
op-kernel-dev-62e7ca5280fd8cbf523970757e13f0324ce0daa0.tar.gz
zlib: clean up some dead code
Cleanup unused `if 0'-ed functions, which have been dead since 2006 (commits 87c2ce3b9305 ("lib/zlib*: cleanups") by Adrian Bunk and 4f3865fb57a0 ("zlib_inflate: Upgrade library code to a recent version") by Richard Purdie): - zlib_deflateSetDictionary - zlib_deflateParams - zlib_deflateCopy - zlib_inflateSync - zlib_syncsearch - zlib_inflateSetDictionary - zlib_inflatePrime Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/zlib.h')
-rw-r--r--include/linux/zlib.h118
1 files changed, 0 insertions, 118 deletions
diff --git a/include/linux/zlib.h b/include/linux/zlib.h
index 9c5a6b4..197abb2 100644
--- a/include/linux/zlib.h
+++ b/include/linux/zlib.h
@@ -493,64 +493,6 @@ extern int deflateInit2 (z_streamp strm,
method). msg is set to null if there is no error message. deflateInit2 does
not perform any compression: this will be done by deflate().
*/
-
-#if 0
-extern int zlib_deflateSetDictionary (z_streamp strm,
- const Byte *dictionary,
- uInt dictLength);
-#endif
-/*
- Initializes the compression dictionary from the given byte sequence
- without producing any compressed output. This function must be called
- immediately after deflateInit, deflateInit2 or deflateReset, before any
- call of deflate. The compressor and decompressor must use exactly the same
- dictionary (see inflateSetDictionary).
-
- The dictionary should consist of strings (byte sequences) that are likely
- to be encountered later in the data to be compressed, with the most commonly
- used strings preferably put towards the end of the dictionary. Using a
- dictionary is most useful when the data to be compressed is short and can be
- predicted with good accuracy; the data can then be compressed better than
- with the default empty dictionary.
-
- Depending on the size of the compression data structures selected by
- deflateInit or deflateInit2, a part of the dictionary may in effect be
- discarded, for example if the dictionary is larger than the window size in
- deflate or deflate2. Thus the strings most likely to be useful should be
- put at the end of the dictionary, not at the front.
-
- Upon return of this function, strm->adler is set to the Adler32 value
- of the dictionary; the decompressor may later use this value to determine
- which dictionary has been used by the compressor. (The Adler32 value
- applies to the whole dictionary even if only a subset of the dictionary is
- actually used by the compressor.)
-
- deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
- parameter is invalid (such as NULL dictionary) or the stream state is
- inconsistent (for example if deflate has already been called for this stream
- or if the compression method is bsort). deflateSetDictionary does not
- perform any compression: this will be done by deflate().
-*/
-
-#if 0
-extern int zlib_deflateCopy (z_streamp dest, z_streamp source);
-#endif
-
-/*
- Sets the destination stream as a complete copy of the source stream.
-
- This function can be useful when several compression strategies will be
- tried, for example when there are several ways of pre-processing the input
- data with a filter. The streams that will be discarded should then be freed
- by calling deflateEnd. Note that deflateCopy duplicates the internal
- compression state which can be quite large, so this strategy is slow and
- can consume lots of memory.
-
- deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
- (such as zalloc being NULL). msg is left unchanged in both source and
- destination.
-*/
extern int zlib_deflateReset (z_streamp strm);
/*
@@ -568,27 +510,6 @@ static inline unsigned long deflateBound(unsigned long s)
return s + ((s + 7) >> 3) + ((s + 63) >> 6) + 11;
}
-#if 0
-extern int zlib_deflateParams (z_streamp strm, int level, int strategy);
-#endif
-/*
- Dynamically update the compression level and compression strategy. The
- interpretation of level and strategy is as in deflateInit2. This can be
- used to switch between compression and straight copy of the input data, or
- to switch to a different kind of input data requiring a different
- strategy. If the compression level is changed, the input available so far
- is compressed with the old level (and may be flushed); the new level will
- take effect only at the next call of deflate().
-
- Before the call of deflateParams, the stream state must be set as for
- a call of deflate(), since the currently available input may have to
- be compressed and flushed. In particular, strm->avail_out must be non-zero.
-
- deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
- stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR
- if strm->avail_out was zero.
-*/
-
/*
extern int inflateInit2 (z_streamp strm, int windowBits);
@@ -631,45 +552,6 @@ extern int inflateInit2 (z_streamp strm, int windowBits);
and avail_out are unchanged.)
*/
-extern int zlib_inflateSetDictionary (z_streamp strm,
- const Byte *dictionary,
- uInt dictLength);
-/*
- Initializes the decompression dictionary from the given uncompressed byte
- sequence. This function must be called immediately after a call of inflate,
- if that call returned Z_NEED_DICT. The dictionary chosen by the compressor
- can be determined from the adler32 value returned by that call of inflate.
- The compressor and decompressor must use exactly the same dictionary (see
- deflateSetDictionary). For raw inflate, this function can be called
- immediately after inflateInit2() or inflateReset() and before any call of
- inflate() to set the dictionary. The application must insure that the
- dictionary that was used for compression is provided.
-
- inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
- parameter is invalid (such as NULL dictionary) or the stream state is
- inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
- expected one (incorrect adler32 value). inflateSetDictionary does not
- perform any decompression: this will be done by subsequent calls of
- inflate().
-*/
-
-#if 0
-extern int zlib_inflateSync (z_streamp strm);
-#endif
-/*
- Skips invalid compressed data until a full flush point (see above the
- description of deflate with Z_FULL_FLUSH) can be found, or until all
- available input is skipped. No output is provided.
-
- inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
- if no more input was provided, Z_DATA_ERROR if no flush point has been found,
- or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
- case, the application may save the current current value of total_in which
- indicates where valid compressed data was found. In the error case, the
- application may repeatedly call inflateSync, providing more input each time,
- until success or end of the input data.
-*/
-
extern int zlib_inflateReset (z_streamp strm);
/*
This function is equivalent to inflateEnd followed by inflateInit,
OpenPOWER on IntegriCloud