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 <[email protected]>
Cc: Phillip Lougher <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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) */