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of: overlay: update phandle cache on overlay apply and remove

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A comment in the review of the patch adding the phandle cache said that
the cache would have to be updated when modules are applied and removed.
This patch implements the cache updates.

Fixes: 0b3ce78e90 ("of: cache phandle nodes to reduce cost of of_find_node_by_phandle()")
Reported-by: Alan Tull <atull@kernel.org>
Suggested-by: Alan Tull <atull@kernel.org>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Frank Rowand
2018-07-12 14:00:07 -07:00
committed by Rob Herring
parent a47c9b3943
commit b9952b5218
3 changed files with 16 additions and 3 deletions
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2
drivers/of/of_private.h
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@@ -79,6 +79,8 @@ int of_resolve_phandles(struct device_node *tree);
#if defined(CONFIG_OF_OVERLAY)
void of_overlay_mutex_lock(void);
void of_overlay_mutex_unlock(void);
int of_free_phandle_cache(void);
void of_populate_phandle_cache(void);
#else
static inline void of_overlay_mutex_lock(void) {};
static inline void of_overlay_mutex_unlock(void) {};