Commit 7c71650f authored May 14, 2019 by Stephen Boyd Committed by Rob Herring May 24, 2019

of/fdt: Mark initial_boot_params as __ro_after_init



The FDT pointer, i.e. initial_boot_params, shouldn't be changed after
init. It's only set by boot code and then the only user of the FDT is
the raw sysfs reading API. Mark this pointer with __ro_after_init so
that the pointer can't be changed after init.

Cc: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Herring <robh@kernel.org>

parent 9b4d2b63

drivers/of/fdt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -516,7 +516,7 @@ EXPORT_SYMBOL_GPL(of_fdt_unflatten_tree);
		int __initdata dt_root_addr_cells;
		int __initdata dt_root_size_cells;

		void *initial_boot_params;
		void *initial_boot_params __ro_after_init;

		#ifdef CONFIG_OF_EARLY_FLATTREE

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