[PATCH] lib/zlib*: cleanups

This patch contains the following possible cleanups:
- #if 0 the following unused functions:
  - zlib_deflate/deflate.c: zlib_deflateSetDictionary
  - zlib_deflate/deflate.c: zlib_deflateParams
  - zlib_deflate/deflate.c: zlib_deflateCopy
  - zlib_inflate/infblock.c: zlib_inflate_set_dictionary
  - zlib_inflate/infblock.c: zlib_inflate_blocks_sync_point
  - zlib_inflate/inflate_sync.c: zlib_inflateSync
  - zlib_inflate/inflate_sync.c: zlib_inflateSyncPoint
- remove the following unneeded EXPORT_SYMBOL's:
  - zlib_deflate/deflate_syms.c: zlib_deflateCopy
  - zlib_deflate/deflate_syms.c: zlib_deflateParams
  - zlib_inflate/inflate_syms.c: zlib_inflateSync
  - zlib_inflate/inflate_syms.c: zlib_inflateSyncPoint

Signed-off-by: Adrian Bunk <[email protected]>
Cc: Matt Mackall <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: AdrianBunk

include/linux/zlib.h

@@ -442,9 +442,11 @@ extern int deflateInit2 (z_streamp strm,
    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
@@ -478,7 +480,10 @@ extern int zlib_deflateSetDictionary (z_streamp strm,
    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.
 
@@ -511,7 +516,9 @@ 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
@@ -571,7 +578,9 @@ extern int zlib_inflateSetDictionary (z_streamp strm,
    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
@@ -636,7 +645,9 @@ extern int zlib_inflateInit2_ (z_streamp strm, int  windowBits,
 #endif
 
 extern const char  * zlib_zError           (int err);
+#if 0
 extern int           zlib_inflateSyncPoint (z_streamp z);
+#endif
 extern const uLong * zlib_get_crc_table    (void);
 
 #endif /* _ZLIB_H */

lib/zlib_deflate/deflate.c

@@ -255,6 +255,7 @@ int zlib_deflateInit2_(
 }
 
 /* ========================================================================= */
+#if 0
 int zlib_deflateSetDictionary(
 	z_streamp strm,
 	const Byte *dictionary,
@@ -297,6 +298,7 @@ int zlib_deflateSetDictionary(
     if (hash_head) hash_head = 0;  /* to make compiler happy */
     return Z_OK;
 }
+#endif  /*  0  */
 
 /* ========================================================================= */
 int zlib_deflateReset(
@@ -330,6 +332,7 @@ int zlib_deflateReset(
 }
 
 /* ========================================================================= */
+#if 0
 int zlib_deflateParams(
 	z_streamp strm,
 	int level,
@@ -365,6 +368,7 @@ int zlib_deflateParams(
     s->strategy = strategy;
     return err;
 }
+#endif  /*  0  */
 
 /* =========================================================================
  * Put a short in the pending buffer. The 16-bit value is put in MSB order.
@@ -572,6 +576,7 @@ int zlib_deflateEnd(
 /* =========================================================================
  * Copy the source state to the destination state.
  */
+#if 0
 int zlib_deflateCopy (
 	z_streamp dest,
 	z_streamp source
@@ -624,6 +629,7 @@ int zlib_deflateCopy (
     return Z_OK;
 #endif
 }
+#endif  /*  0  */
 
 /* ===========================================================================
  * Read a new buffer from the current input stream, update the adler32

lib/zlib_deflate/deflate_syms.c

@@ -16,6 +16,4 @@ EXPORT_SYMBOL(zlib_deflateInit_);
 EXPORT_SYMBOL(zlib_deflateInit2_);
 EXPORT_SYMBOL(zlib_deflateEnd);
 EXPORT_SYMBOL(zlib_deflateReset);
-EXPORT_SYMBOL(zlib_deflateCopy);
-EXPORT_SYMBOL(zlib_deflateParams);
 MODULE_LICENSE("GPL");

lib/zlib_inflate/infblock.c

@@ -338,6 +338,7 @@ int zlib_inflate_blocks_free(
 }
 
 
+#if 0
 void zlib_inflate_set_dictionary(
 	inflate_blocks_statef *s,
 	const Byte *d,
@@ -347,15 +348,18 @@ void zlib_inflate_set_dictionary(
   memcpy(s->window, d, n);
   s->read = s->write = s->window + n;
 }
+#endif  /*  0  */
 
 
 /* Returns true if inflate is currently at the end of a block generated
  * by Z_SYNC_FLUSH or Z_FULL_FLUSH. 
  * IN assertion: s != NULL
  */
+#if 0
 int zlib_inflate_blocks_sync_point(
 	inflate_blocks_statef *s
 )
 {
   return s->mode == LENS;
 }
+#endif  /*  0  */

lib/zlib_inflate/infblock.h

@@ -33,12 +33,16 @@ extern int zlib_inflate_blocks_free (
     inflate_blocks_statef *,
     z_streamp);
 
+#if 0
 extern void zlib_inflate_set_dictionary (
     inflate_blocks_statef *s,
     const Byte *d,  /* dictionary */
     uInt  n);       /* dictionary length */
+#endif  /*  0  */
 
+#if 0
 extern int zlib_inflate_blocks_sync_point (
     inflate_blocks_statef *s);
+#endif  /*  0  */
 
 #endif /* _INFBLOCK_H */

lib/zlib_inflate/inflate_syms.c

@@ -15,8 +15,6 @@ EXPORT_SYMBOL(zlib_inflate);
 EXPORT_SYMBOL(zlib_inflateInit_);
 EXPORT_SYMBOL(zlib_inflateInit2_);
 EXPORT_SYMBOL(zlib_inflateEnd);
-EXPORT_SYMBOL(zlib_inflateSync);
 EXPORT_SYMBOL(zlib_inflateReset);
-EXPORT_SYMBOL(zlib_inflateSyncPoint);
 EXPORT_SYMBOL(zlib_inflateIncomp); 
 MODULE_LICENSE("GPL");

lib/zlib_inflate/inflate_sync.c

@@ -7,6 +7,7 @@
 #include "infblock.h"
 #include "infutil.h"
 
+#if 0
 int zlib_inflateSync(
 	z_streamp z
 )
@@ -57,6 +58,7 @@ int zlib_inflateSync(
   z->state->mode = BLOCKS;
   return Z_OK;
 }
+#endif  /*  0  */
 
 
 /* Returns true if inflate is currently at the end of a block generated
@@ -66,6 +68,7 @@ int zlib_inflateSync(
  * decompressing, PPP checks that at the end of input packet, inflate is
  * waiting for these length bytes.
  */
+#if 0
 int zlib_inflateSyncPoint(
 	z_streamp z
 )
@@ -74,6 +77,7 @@ int zlib_inflateSyncPoint(
     return Z_STREAM_ERROR;
   return zlib_inflate_blocks_sync_point(z->state->blocks);
 }
+#endif  /*  0  */
 
 /*
  * This subroutine adds the data at next_in/avail_in to the output history