From b295d484b97081feba72b071ffcb72fb4638ccfd Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 4 Oct 2022 12:21:25 +0300 Subject: device property: Allow const parameter to dev_fwnode() It's not fully correct to take a const parameter pointer to a struct and return a non-const pointer to a member of that struct. Instead, introduce a const version of the dev_fwnode() API which takes and returns const pointers and use it where it's applicable. With this, convert dev_fwnode() to be a macro wrapper on top of const and non-const APIs that chooses one based on the type. Suggested-by: Sakari Ailus Fixes: aade55c86033 ("device property: Add const qualifier to device_get_match_data() parameter") Signed-off-by: Andy Shevchenko Acked-by: Heikki Krogerus Reviewed-by: Sakari Ailus Link: https://lore.kernel.org/r/20221004092129.19412-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/base/property.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/base/property.c') diff --git a/drivers/base/property.c b/drivers/base/property.c index 4d6278a84868..d77302d28566 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -17,12 +17,19 @@ #include #include -struct fwnode_handle *dev_fwnode(const struct device *dev) +struct fwnode_handle *__dev_fwnode(struct device *dev) { return IS_ENABLED(CONFIG_OF) && dev->of_node ? of_fwnode_handle(dev->of_node) : dev->fwnode; } -EXPORT_SYMBOL_GPL(dev_fwnode); +EXPORT_SYMBOL_GPL(__dev_fwnode); + +const struct fwnode_handle *__dev_fwnode_const(const struct device *dev) +{ + return IS_ENABLED(CONFIG_OF) && dev->of_node ? + of_fwnode_handle(dev->of_node) : dev->fwnode; +} +EXPORT_SYMBOL_GPL(__dev_fwnode_const); /** * device_property_present - check if a property of a device is present -- cgit v1.2.3