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add consts where appropriate in fs/nls/*

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Add const modifiers to a few struct nls_table's member pointers in
include/linux/nls.h and adds a lot of const's in fs/nls/*.c files.

Resulting changes as visible by size:

   text    data     bss     dec     hex filename
 113612  481216    2368  597196   91ccc nls.org/built-in.o
 593548    3296     288  597132   91c8c nls/built-in.o

Apparently compiler managed to optimize code a bit better
because of const-ness.

No other changes are made.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Denys Vlasenko
2007-10-16 23:29:54 -07:00
committed by Linus Torvalds
parent 37c42524d6
commit b9ec0339d8
40 changed files with 1174 additions and 1174 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/nls/nls_cp857.c
+8 -8
View File
@@ -13,7 +13,7 @@
#include <linux/nls.h>
#include <linux/errno.h>
static wchar_t charset2uni[256] = {
static const wchar_t charset2uni[256] = {
/* 0x00*/
0x0000, 0x0001, 0x0002, 0x0003,
0x0004, 0x0005, 0x0006, 0x0007,
@@ -96,7 +96,7 @@ static wchar_t charset2uni[256] = {
0x00b3, 0x00b2, 0x25a0, 0x00a0,
};
static unsigned char page00[256] = {
static const unsigned char page00[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
@@ -132,7 +132,7 @@ static unsigned char page00[256] = {
0x9b, 0x97, 0xa3, 0x96, 0x81, 0x00, 0x00, 0xed, /* 0xf8-0xff */
};
static unsigned char page01[256] = {
static const unsigned char page01[256] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
@@ -147,7 +147,7 @@ static unsigned char page01[256] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, 0x9f, /* 0x58-0x5f */
};
static unsigned char page25[256] = {
static const unsigned char page25[256] = {
0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
@@ -172,7 +172,7 @@ static unsigned char page25[256] = {
0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
};
static unsigned char *page_uni2charset[256] = {
static const unsigned char *const page_uni2charset[256] = {
page00, page01, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
@@ -180,7 +180,7 @@ static unsigned char *page_uni2charset[256] = {
NULL, NULL, NULL, NULL, NULL, page25, NULL, NULL,
};
static unsigned char charset2lower[256] = {
static const unsigned char charset2lower[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
@@ -216,7 +216,7 @@ static unsigned char charset2lower[256] = {
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
};
static unsigned char charset2upper[256] = {
static const unsigned char charset2upper[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
@@ -254,7 +254,7 @@ static unsigned char charset2upper[256] = {
static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
{
unsigned char *uni2charset;
const unsigned char *uni2charset;
unsigned char cl = uni & 0x00ff;
unsigned char ch = (uni & 0xff00) >> 8;