Created attachment 288165 [details] attaching a .config that causes this i encountered an issue while building unmodified mainline 5.6.0 kernel. some option in my config file triggered building of drivers/soc/tegra/pmc.c but the build failed with the following drivers/soc/tegra/pmc.c:1764:3: error: 'const struct pinconf_ops' has no member named 'is_generic' 1764 | .is_generic = true, | ^~~~~~~~~~ drivers/soc/tegra/pmc.c:1764:16: warning: initialization of 'int (*)(struct pinctrl_dev *, unsigned int, long unsigned int *)' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1764 | .is_generic = true, | ^~~~ drivers/soc/tegra/pmc.c:1764:16: note: (near initialization for 'tegra_io_pad_pinconf_ops.pin_config_group_get') make[3]: *** [scripts/Makefile.build:268: drivers/soc/tegra/pmc.o] Error 1 make[2]: *** [scripts/Makefile.build:505: drivers/soc/tegra] Error 2 make[1]: *** [scripts/Makefile.build:505: drivers/soc] Error 2 make[1]: *** Waiting for unfinished jobs.... ... make: *** [Makefile:1683: drivers] Error 2 make: *** Waiting for unfinished jobs.... after some investigation on this i noticed that struct pinconf_ops has member is_generic only if CONFIG_GENERIC_PINCONF is defined and i think that it's a bug that this option is not defined as a dependency of the option that triggered building of this file. some useful references: drivers/soc/tegra/pmc.c:1764 - build fails here include/linux/pinctrl/pinconf.h:38 - definition of struct pinconf_ops my rough guess is that PINCTRL_TEGRA (i found it in generated .config from a defconfig) should depends on GENERIC_PINCONF since it already depends on PINCONF attaching a .config that causes this