Commit fd7d58f0dbc3 ("ARM: multi_v7_defconfig: renormalize based on recent additions") removed explicit enable line for CONFIG_DEBUG_FS, because that feature has been selected by other enabled options: CONFIG_TRACING, which were enabled by CONFIG_PERF_EVENTS. In meantime, commit 0e4a459f56c3 ("tracing: Remove unnecessary DEBUG_FS dependency") removed the dependency between CONFIG_DEBUG_FS and CONFIG_TRACING, so CONFIG_DEBUG_FS is no longer enabled in default builds. Enable it again explicitly, as debugfs support is essential for various automated testing tools. Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> --- arch/arm/configs/multi_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index 24962d0e71c7..0ffa957f2c94 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -1121,3 +1121,4 @@ CONFIG_CRYPTO_DEV_ROCKCHIP=m CONFIG_CMA_SIZE_MBYTES=64 CONFIG_PRINTK_TIME=y CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_FS=y -- 2.17.1