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-rw-r--r--include/linux/zlib.h11
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/zlib.h b/include/linux/zlib.h
index 40c49cb3eb51..9c5a6b4de0a3 100644
--- a/include/linux/zlib.h
+++ b/include/linux/zlib.h
@@ -179,11 +179,16 @@ typedef z_stream *z_streamp;
/* basic functions */
-extern int zlib_deflate_workspacesize (void);
+extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
/*
Returns the number of bytes that needs to be allocated for a per-
- stream workspace. A pointer to this number of bytes should be
- returned in stream->workspace before calling zlib_deflateInit().
+ stream workspace with the specified parameters. A pointer to this
+ number of bytes should be returned in stream->workspace before
+ you call zlib_deflateInit() or zlib_deflateInit2(). If you call
+ zlib_deflateInit(), specify windowBits = MAX_WBITS and memLevel =
+ MAX_MEM_LEVEL here. If you call zlib_deflateInit2(), the windowBits
+ and memLevel parameters passed to zlib_deflateInit2() must not
+ exceed those passed here.
*/
/*
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