From: Tom Rini Date: Sun, 24 Nov 2024 21:41:32 +0000 (-0600) Subject: Merge patch series "Fix device removal order for Apple dart iommu" X-Git-Url: http://git.dujemihanovic.xyz/html/%7B%7B%20%28.OutputFormats.Get?a=commitdiff_plain;h=880fcc49eb40a78ed27ff575aa02034d7bd74e80;p=u-boot.git Merge patch series "Fix device removal order for Apple dart iommu" Janne Grunau says: Starting with v2024.10 dev_iommu_dma_unmap calls during device removal trigger a NULL pointer dereference in the Apple dart iommu driver. The iommu device is removed before its user. The sparsely used DM_FLAG_VITAL flag is intended to describe this dependency. Add it to the driver. Adding this flag is unfortunately not enough since the boot routines except the arm one simply remove all drivers. Add and use a new function which calls dm_remove_devioce_flags(DM_REMOVE_ACTIVE_ALL | DM_REMOVE_NON_VITAL); dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL); to ensure this order dependency is head consistently. Link: https://lore.kernel.org/r/20241123-iommu_apple_dart_ordering-v2-0-cc2ade6dde97@jannau.net --- 880fcc49eb40a78ed27ff575aa02034d7bd74e80