Hi Thierry, your commit e3cf5bf687df ("soc/tegra: fuse: Add Tegra210 support") is in today's linux-next tree (i.e., next-20150514). The following lines in the commit reference a Kconfig option that is not defined, so that the driver and the affected #ifdef blocks cannot be compiled: drivers/soc/tegra/fuse/Makefile:10:obj-$(CONFIG_ARCH_TEGRA_210_SOC) += speedo-tegra210.o drivers/soc/tegra/fuse/fuse-tegra.c:104:#ifdef CONFIG_ARCH_TEGRA_210_SOC drivers/soc/tegra/fuse/fuse-tegra30.c:49: defined(CONFIG_ARCH_TEGRA_210_SOC) drivers/soc/tegra/fuse/fuse-tegra30.c:148:#if defined(CONFIG_ARCH_TEGRA_210_SOC) drivers/soc/tegra/fuse/fuse.h:84:#ifdef CONFIG_ARCH_TEGRA_210_SOC drivers/soc/tegra/fuse/fuse.h:104:#ifdef CONFIG_ARCH_TEGRA_210_SOC Is there a patch queued somewhere to add this option? I detected this issue with scripts/checkkconfigsymbols.py by diffing yesterday's and today's linux-next tree. You can also use the script to check specific commits for Kconfig related issues. Kind regards, Valentin -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html