lib/decompress_bunzip2.c: fix checkstack warning

Fix checkstack error:

lib/decompress_bunzip2.c: In function `get_next_block':
lib/decompress_bunzip2.c:511: warning: the frame size of 1932 bytes is larger than 1024 bytes

byteCount, symToByte, and mtfSymbol cannot be declared static or allocated
dynamically so place them in the bunzip_data struct.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Phillip Lougher <phillip@lougher.demon.co.uk>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c
index a4e971dee102..81c8bb1cc6aa 100644
--- a/lib/decompress_bunzip2.c
+++ b/lib/decompress_bunzip2.c
@@ -107,6 +107,8 @@ struct bunzip_data {
         unsigned char selectors[32768];         /* nSelectors = 15 bits */
         struct group_data groups[MAX_GROUPS];   /* Huffman coding tables */
         int io_error;                   /* non-zero if we have IO error */
+        int byteCount[256];
+        unsigned char symToByte[256], mtfSymbol[256];
 };
 
 
@@ -158,14 +160,16 @@ static int INIT get_next_block(struct bunzip_data *bd)
         int *base = NULL;
         int *limit = NULL;
         int dbufCount, nextSym, dbufSize, groupCount, selector,
-                i, j, k, t, runPos, symCount, symTotal, nSelectors,
-                byteCount[256];
-        unsigned char uc, symToByte[256], mtfSymbol[256], *selectors;
+                i, j, k, t, runPos, symCount, symTotal, nSelectors, *byteCount;
+        unsigned char uc, *symToByte, *mtfSymbol, *selectors;
         unsigned int *dbuf, origPtr;
 
         dbuf = bd->dbuf;
         dbufSize = bd->dbufSize;
         selectors = bd->selectors;
+        byteCount = bd->byteCount;
+        symToByte = bd->symToByte;
+        mtfSymbol = bd->mtfSymbol;
 
         /* Read in header signature and CRC, then validate signature.
            (last block signature means CRC is for whole file, return now) */