From: Arnd Bergmann <a...@arndb.de> Date: Thu, 28 Jan 2016 17:39:24 +0100
> When CONFIG_PROC_FS, CONFIG_IP_PNP_BOOTP, CONFIG_IP_PNP_DHCP and > CONFIG_IP_PNP_RARP are all disabled, we get a warning about the > ic_proto_used variable being unused: > > net/ipv4/ipconfig.c:146:12: error: 'ic_proto_used' defined but not used > [-Werror=unused-variable] > > This avoids the warning, by making the definition conditional on > whether a dynamic IP configuration protocol is configured. If not, > we know that the value is always zero, so we can optimize away the > variable and all code that depends on it. > > Signed-off-by: Arnd Bergmann <a...@arndb.de> Applied.
