| Message ID | 1560534863-15115-7-git-send-email-suzuki.poulose@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drivers: Consolidate device lookup helpers | expand |
Hi On 14/06/2019 21:31, Wolfram Sang wrote: >> + >> +int device_match_of_node(struct device *dev, const void *np) >> +{ >> + return dev->of_node == np; >> +} >> +EXPORT_SYMBOL_GPL(device_match_of_node); > > Is it an option to 'static inline' this simple function in the header, > saving the EXPORT? > No. This is supposed to be passed on as a call back function pointer for the APIs. Having it as a static inline, would simply replicate the same function through the driver subsystems, which is one of the issues that series is trying to solve. Also, by having them exported, we can convert the new specialized device lookup functions, *_find_device_by_<property> to be static inlines. Suzuki
> > Is it an option to 'static inline' this simple function in the header, > > saving the EXPORT? > > > > No. OK, thanks for the explanation!
diff --git a/drivers/base/core.c b/drivers/base/core.c index fd7511e..9211908 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3328,3 +3328,9 @@ void device_set_of_node_from_dev(struct device *dev, const struct device *dev2) dev->of_node_reused = true; } EXPORT_SYMBOL_GPL(device_set_of_node_from_dev); + +int device_match_of_node(struct device *dev, const void *np) +{ + return dev->of_node == np; +} +EXPORT_SYMBOL_GPL(device_match_of_node); diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c index 75f64ab..e405309 100644 --- a/drivers/fpga/of-fpga-region.c +++ b/drivers/fpga/of-fpga-region.c @@ -22,11 +22,6 @@ static const struct of_device_id fpga_region_of_match[] = { }; MODULE_DEVICE_TABLE(of, fpga_region_of_match); -static int fpga_region_of_node_match(struct device *dev, const void *data) -{ - return dev->of_node == data; -} - /** * of_fpga_region_find - find FPGA region * @np: device node of FPGA Region @@ -37,7 +32,7 @@ static int fpga_region_of_node_match(struct device *dev, const void *data) */ static struct fpga_region *of_fpga_region_find(struct device_node *np) { - return fpga_region_class_find(NULL, np, fpga_region_of_node_match); + return fpga_region_class_find(NULL, np, device_match_of_node); } /** diff --git a/include/linux/device.h b/include/linux/device.h index 4d7c881..7093085 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -163,6 +163,8 @@ void subsys_dev_iter_init(struct subsys_dev_iter *iter, struct device *subsys_dev_iter_next(struct subsys_dev_iter *iter); void subsys_dev_iter_exit(struct subsys_dev_iter *iter); +int device_match_of_node(struct device *dev, const void *np); + int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); struct device *bus_find_device(struct bus_type *bus, struct device *start,
Add a helper to match device by the of_node. This will be later used to provide wrappers to the device iterators for {bus/class/driver}_find_device(). Convert other users to reuse this new helper. Cc: Alan Tull <atull@kernel.org> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: "David S. Miller" <davem@davemloft.net> Cc: devicetree@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: Jiri Slaby <jslaby@suse.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: linux-fpga@vger.kernel.org Cc: linux-i2c@vger.kernel.org Cc: linux-spi@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Mark Brown <broonie@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Moritz Fischer <mdf@kernel.org> Cc: Peter Rosin <peda@axentia.se> Cc: Rob Herring <robh+dt@kernel.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Thor Thayer <thor.thayer@linux.intel.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Joe Perches <joe@perches.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- drivers/base/core.c | 6 ++++++ drivers/fpga/of-fpga-region.c | 7 +------ include/linux/device.h | 2 ++ 3 files changed, 9 insertions(+), 6 deletions(-)