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authorStephen Boyd <swboyd@chromium.org>2019-05-14 23:40:53 +0300
committerRob Herring <robh@kernel.org>2019-05-25 00:39:27 +0300
commit7c71650f9a3640464dd907bd7a6510cc7ea02ba6 (patch)
treec1535955444800778e8910844471594bcf088aa0 /drivers/of/fdt.c
parent9b4d2b635bd0cf8dfc45223f66fd85792fd2dc7b (diff)
downloadlinux-7c71650f9a3640464dd907bd7a6510cc7ea02ba6.tar.xz
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>
Diffstat (limited to 'drivers/of/fdt.c')
-rw-r--r--drivers/of/fdt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 918098c9f72a..3d36b5afd9bd 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -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