dev: Constify `ifname' parameter to device_up_and_running()

The parameter `ifname' to device_up_and_running() is never modified
inside the function, thus mark it as const.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 1 insertions, 1 deletions

diff --git a/dev.h b/dev.h
index 87751c6..7bd1fb3 100644
--- a/dev.h
+++ b/dev.h
@@ -10,7 +10,7 @@ extern int device_ifindex(const char *ifname);
 extern int device_type(const char *ifname);
 extern short device_get_flags(const char *ifname);
 extern void device_set_flags(const char *ifname, const short flags);
-extern int device_up_and_running(char *ifname);
+extern int device_up_and_running(const char *ifname);
 extern u32 device_bitrate(const char *ifname);
 
 #endif /* DEV_H */