unicode: make array 'token' static const, makes object smaller

Don't populate the array 'token' on the stack but instead make it
static const. Makes the object code smaller by 234 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
   5371	    272	      0	   5643	   160b	fs/unicode/utf8-core.o

After:
   text	   data	    bss	    dec	    hex	filename
   5041	    368	      0	   5409	   1521	fs/unicode/utf8-core.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <[email protected]>
Reviewed-by: Theodore Ts'o <[email protected]>
Signed-off-by: Gabriel Krisman Bertazi <[email protected]>

diff --git a/fs/unicode/utf8-core.c b/fs/unicode/utf8-core.c
index 71ca4d047d6543701dbbdcc2056348534a25e96f..2a878b739115d2e2734a62b04ec40d8c20a1e586 100644 (file)
--- a/fs/unicode/utf8-core.c
+++ b/fs/unicode/utf8-core.c
@@ -154,7 +154,7 @@ static int utf8_parse_version(const char *version, unsigned int *maj,
 {
        substring_t args[3];
        char version_string[12];
-       const struct match_token token[] = {
+       static const struct match_token token[] = {
                {1, "%d.%d.%d"},
                {0, NULL}
        };