Frank Rowand f948d6d8b7 of: overlay: avoid race condition between applying multiple overlays ... The process of applying an overlay consists of: - unflatten an overlay FDT (flattened device tree) into an EDT (expanded device tree) - fixup the phandle values in the overlay EDT to fit in a range above the phandle values in the live device tree - create the overlay changeset to reflect the contents of the overlay EDT - apply the overlay changeset, to modify the live device tree, potentially changing the maximum phandle value in the live device tree There is currently no protection against two overlay applies concurrently determining what range of phandle values are in use in the live device tree, and subsequently changing that range. Add a mutex to prevent multiple overlay applies from occurring simultaneously. Move of_resolve_phandles() into of_overlay_apply() so that it does not have to be duplicated by each caller of of_overlay_apply(). The test in of_resolve_phandles() that the overlay tree is detached is temporarily disabled so that old style overlay unittests do not fail. Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>		2017-10-17 20:47:27 -05:00
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drm	of: overlay: avoid race condition between applying multiple overlays	2017-10-17 20:47:27 -05:00
host1x	drm/tegra: Changes for v4.14-rc1	2017-08-21 17:37:33 +10:00
ipu-v3	main drm pull request for 4.14 merge window	2017-09-03 17:02:26 -07:00
vga	sched/wait: Rename wait_queue_t => wait_queue_entry_t	2017-06-20 12:18:27 +02:00
Makefile