[merged] lib-lz4-make-arrays-static-const-reduces-object-code-size.patch removed from -mm tree

[merged] lib-lz4-make-arrays-static-const-reduces-object-code-size.patch removed from -mm tree

[akpm]

The patch titled
     Subject: lib/lz4: make arrays static const, reduces object code size
has been removed from the -mm tree.  Its filename was
     lib-lz4-make-arrays-static-const-reduces-object-code-size.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Colin Ian King <colin.king@canonical.com>
Subject: lib/lz4: make arrays static const, reduces object code size

Don't populate the read-only arrays dec32table and dec64table on the
stack, instead make them both static const.  Makes the object code smaller
by over 10K bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  31500	      0	      0	  31500	   7b0c	lib/lz4/lz4_decompress.o

After:
   text	   data	    bss	    dec	    hex	filename
  20237	    176	      0	  20413	   4fbd	lib/lz4/lz4_decompress.o

(gcc version 7.2.0 x86_64)

Link: http://lkml.kernel.org/r/20170921221939.20820-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/lz4/lz4_decompress.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN lib/lz4/lz4_decompress.c~lib-lz4-make-arrays-static-const-reduces-object-code-size lib/lz4/lz4_decompress.c
--- a/lib/lz4/lz4_decompress.c~lib-lz4-make-arrays-static-const-reduces-object-code-size
+++ a/lib/lz4/lz4_decompress.c
@@ -85,8 +85,8 @@ static FORCE_INLINE int LZ4_decompress_g
 	const BYTE * const lowLimit = lowPrefix - dictSize;
 
 	const BYTE * const dictEnd = (const BYTE *)dictStart + dictSize;
-	const unsigned int dec32table[] = { 0, 1, 2, 1, 4, 4, 4, 4 };
-	const int dec64table[] = { 0, 0, 0, -1, 0, 1, 2, 3 };
+	static const unsigned int dec32table[] = { 0, 1, 2, 1, 4, 4, 4, 4 };
+	static const int dec64table[] = { 0, 0, 0, -1, 0, 1, 2, 3 };
 
 	const int safeDecode = (endOnInput == endOnInputSize);
 	const int checkOffset = ((safeDecode) && (dictSize < (int)(64 * KB)));
_

Patches currently in -mm which might be from colin.king@canonical.com are