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[ Upstream commit46db63abb7] This is currently off and that's not desirable: default imx config is meant to be generally useful for development and debugging. Running git bisect between v5.4 and v5.5-rc1 finds this started from commit0e4a459f56("tracing: Remove unnecessary DEBUG_FS dependency") Explicit CONFIG_DEBUG_FS=y was earlier removed by commitc29d541f59("ARM: imx_v6_v7_defconfig: Remove unneeded options") A very similar fix was required before: commit7e9eb62688("ARM: imx_v6_v7_defconfig: Explicitly restore CONFIG_DEBUG_FS") Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>