[AFS]: Make the match_*() functions take const options.

Make the match_*() functions take a const pointer to the options table
and make strings pointers in the options table const too.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/parser.h b/include/linux/parser.h
index fa33328..86676f6 100644 (file)
--- a/include/linux/parser.h
+++ b/include/linux/parser.h
@@ -11,10 +11,10 @@
 /* associates an integer enumerator with a pattern string. */
 struct match_token {
        int token;
-       char *pattern;
+       const char *pattern;
 };
 
-typedef struct match_token match_table_t[];
+typedef const struct match_token match_table_t[];
 
 /* Maximum number of arguments that match_token will find in a pattern */
 enum {MAX_OPT_ARGS = 3};
@@ -29,5 +29,5 @@ int match_token(char *, match_table_t table, substring_t args[]);
 int match_int(substring_t *, int *result);
 int match_octal(substring_t *, int *result);
 int match_hex(substring_t *, int *result);
-void match_strcpy(char *, substring_t *);
-char *match_strdup(substring_t *);
+void match_strcpy(char *, const substring_t *);
+char *match_strdup(const substring_t *);

diff --git a/lib/parser.c b/lib/parser.c
index 7ad2a48..703c8c1 100644 (file)
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -22,7 +22,7 @@
  * match extremely simple token=arg style patterns. If the pattern is found,
  * the location(s) of the arguments will be returned in the @args array.
  */
-static int match_one(char *s, char *p, substring_t args[])
+static int match_one(char *s, const char *p, substring_t args[])
 {
        char *meta;
        int argc = 0;
@@ -43,7 +43,7 @@ static int match_one(char *s, char *p, substring_t args[])
                p = meta + 1;
 
                if (isdigit(*p))
-                       len = simple_strtoul(p, &p, 10);
+                       len = simple_strtoul(p, (char **) &p, 10);
                else if (*p == '%') {
                        if (*s++ != '%')
                                return 0;
@@ -102,7 +102,7 @@ static int match_one(char *s, char *p, substring_t args[])
  */
 int match_token(char *s, match_table_t table, substring_t args[])
 {
-       struct match_token *p;
+       const struct match_token *p;
 
        for (p = table; !match_one(s, p->pattern, args) ; p++)
                ;
@@ -190,7 +190,7 @@ int match_hex(substring_t *s, int *result)
  * &substring_t @s to the c-style string @to. Caller guarantees that @to is
  * large enough to hold the characters of @s.
  */
-void match_strcpy(char *to, substring_t *s)
+void match_strcpy(char *to, const substring_t *s)
 {
        memcpy(to, s->from, s->to - s->from);
        to[s->to - s->from] = '\0';
@@ -204,7 +204,7 @@ void match_strcpy(char *to, substring_t *s)
  * the &substring_t @s. The caller is responsible for freeing the returned
  * string with kfree().
  */
-char *match_strdup(substring_t *s)
+char *match_strdup(const substring_t *s)
 {
        char *p = kmalloc(s->to - s->from + 1, GFP_KERNEL);
        if (p)