../drivers/mfd/zl3073x-core.c:98:28: warning: symbol 'zl3073x_regmap_config' was not declared. Should it be static? ../drivers/mfd/zl3073x-core.c:102:28: warning: symbol 'zl3073x_regmap_config' was not declared. Should it be static? ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?