btrfs-progs: update CHANGES for v4.13.2

[platform/upstream/btrfs-progs.git] / help.c

diff --git a/help.c b/help.c
index b571804..99097db 100644 (file)
--- a/help.c
+++ b/help.c
@@ -218,6 +218,7 @@ void usage_command(const struct cmd_struct *cmd, int full, int err)
        usage_command_usagestr(cmd->usagestr, cmd->token, full, err);
 }
 
+__attribute__((noreturn))
 void usage(const char * const *usagestr)
 {
        usage_command_usagestr(usagestr, NULL, 1, 1);
@@ -325,6 +326,7 @@ void usage_command_group(const struct cmd_group *grp, int full, int err)
                fprintf(outf, "%s\n", grp->infostr);
 }
 
+__attribute__((noreturn))
 void help_unknown_token(const char *arg, const struct cmd_group *grp)
 {
        fprintf(stderr, "%s: unknown token '%s'\n", get_argv0_buf(), arg);
@@ -332,6 +334,7 @@ void help_unknown_token(const char *arg, const struct cmd_group *grp)
        exit(1);
 }
 
+__attribute__((noreturn))
 void help_ambiguous_token(const char *arg, const struct cmd_group *grp)
 {
        const struct cmd_struct *cmd = grp->commands;
@@ -359,12 +362,3 @@ void help_command_group(const struct cmd_group *grp, int argc, char **argv)
        usage_command_group(grp, full, 0);
 }
 
-int prefixcmp(const char *str, const char *prefix)
-{
-       for (; ; str++, prefix++)
-               if (!*prefix)
-                       return 0;
-               else if (*str != *prefix)
-                       return (unsigned char)*prefix - (unsigned char)*str;
-}
-