mdev: use option parser helper

function                                             old     new   delta
process_action                                         -    1051   +1051
mdev_main                                           1324     255   -1069
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 1051/-1069)        Total: -18 bytes

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/util-linux/mdev.c b/util-linux/mdev.c
index 8205a260a..e730548f7 100644
--- a/util-linux/mdev.c
+++ b/util-linux/mdev.c
@@ -249,6 +249,10 @@
 #endif
 
 
+enum {
+        MDEV_OPT_SCAN       = 1 << 0,
+};
+
 static const char keywords[] ALIGN1 = "add\0remove\0"; // "change\0"
 enum { OP_add, OP_remove };
 
@@ -1047,7 +1051,7 @@ static void signal_mdevs(unsigned my_pid)
         }
 }
 
-static void process_action(char *temp, unsigned my_pid)
+static NOINLINE void process_action(char *temp, unsigned my_pid)
 {
         char *fw;
         char *seq;
@@ -1130,6 +1134,7 @@ static void initial_scan(char *temp)
 int mdev_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int mdev_main(int argc UNUSED_PARAM, char **argv)
 {
+        int opt;
         RESERVE_CONFIG_BUFFER(temp, PATH_MAX + SCRATCH_SIZE);
 
         INIT_G();
@@ -1147,7 +1152,9 @@ int mdev_main(int argc UNUSED_PARAM, char **argv)
 
         xchdir("/dev");
 
-        if (argv[1] && strcmp(argv[1], "-s") == 0) {
+        opt = getopt32(argv, "s");
+
+        if (opt & MDEV_OPT_SCAN) {
                 /*
                  * Scan: mdev -s
                  */