netifd: Fix printf calls + function declarations.

cppcheck found printf functions with signed instead of unsigned
formats. Fix those as well as some non-matching function
declarations.

Signed-off by: Rosen Penev <rosenp@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/system.h b/system.h
index c8ddbad..1a3d023 100644
--- a/system.h
+++ b/system.h
@@ -216,6 +216,6 @@ time_t system_get_rtime(void);
 
 void system_fd_set_cloexec(int fd);
 
-int system_update_ipv6_mtu(struct device *device, int mtu);
+int system_update_ipv6_mtu(struct device *dev, int mtu);
 
 #endif