drivers/net/ethernet/smsc/smc91x.c:953: warning: No description found for return value of 'smc_phy_reset' drivers/net/ethernet/smsc/smc91x.c:2205: warning: No description found for return value of 'try_toggle_control_gpio' drivers/net/ethernet/smsc/smc91x.c:941: warning: No description found for return value of 'smc_phy_reset' drivers/net/ethernet/smsc/smc91x.c:2183: warning: No description found for return value of 'try_toggle_control_gpio'