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bus_find_device: Unify the match callback with class_find_device

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There is an arbitrary difference between the prototypes of
bus_find_device() and class_find_device() preventing their callers
from passing the same pair of data and match() arguments to both of
them, which is the const qualifier used in the prototype of
class_find_device().  If that qualifier is also used in the
bus_find_device() prototype, it will be possible to pass the same
match() callback function to both bus_find_device() and
class_find_device(), which will allow some optimizations to be made in
order to avoid code duplication going forward.  Also with that, constify
the "data" parameter as it is passed as a const to the match function.

For this reason, change the prototype of bus_find_device() to match
the prototype of class_find_device() and adjust its callers to use the
const qualifier in accordance with the new prototype of it.

Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Lunn <[email protected]>
Cc: Andreas Noever <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Corey Minyard <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: David Kershner <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Felipe Balbi <[email protected]>
Cc: Frank Rowand <[email protected]>
Cc: Grygorii Strashko <[email protected]>
Cc: Harald Freudenberger <[email protected]>
Cc: Hartmut Knaack <[email protected]>
Cc: Heiko Stuebner <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michael Jamet <[email protected]>
Cc: "Martin K. Petersen" <[email protected]>
Cc: Peter Oberparleiter <[email protected]>
Cc: Sebastian Ott <[email protected]>
Cc: Srinivas Kandagatla <[email protected]>
Cc: Yehezkel Bernat <[email protected]>
Cc: [email protected]
Acked-by: Corey Minyard <[email protected]>
Acked-by: David Kershner <[email protected]>
Acked-by: Mark Brown <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Acked-by: Srinivas Kandagatla <[email protected]>
Acked-by: Wolfram Sang <[email protected]> # for the I2C parts
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Suzuki K Poulose <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Suzuki K Poulose 2019-06-14 18:53:59 +01:00 • committed by Greg Kroah-Hartman
commit 418e3ea157
39 changed files with 67 additions and 68 deletions
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4
drivers/i2c/i2c-core-acpi.c
View file

@ -318,7 +318,7 @@ u32 i2c_acpi_find_bus_speed(struct device *dev)
}
EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
static int i2c_acpi_find_match_adapter(struct device *dev, void *data)
static int i2c_acpi_find_match_adapter(struct device *dev, const void *data)
{
struct i2c_adapter *adapter = i2c_verify_adapter(dev);
@ -328,7 +328,7 @@ static int i2c_acpi_find_match_adapter(struct device *dev, void *data)
return ACPI_HANDLE(dev) == (acpi_handle)data;
}
static int i2c_acpi_find_match_device(struct device *dev, void *data)
static int i2c_acpi_find_match_device(struct device *dev, const void *data)
{
return ACPI_COMPANION(dev) == data;
}

4
drivers/i2c/i2c-core-of.c
View file

@ -112,12 +112,12 @@ void of_i2c_register_devices(struct i2c_adapter *adap)
of_node_put(bus);
}
static int of_dev_node_match(struct device *dev, void *data)
static int of_dev_node_match(struct device *dev, const void *data)
{
return dev->of_node == data;
}
static int of_dev_or_parent_node_match(struct device *dev, void *data)
static int of_dev_or_parent_node_match(struct device *dev, const void *data)
{
if (dev->of_node == data)
return 1;