Re: [PATCH 02/13] bus_find_device: Unify the match callback with class_find_device

From: Srinivas Kandagatla
Date: Thu Jun 06 2019 - 05:05:41 EST




On 05/06/2019 16:13, Suzuki K Poulose wrote:
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<alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Andrew Lunn<andrew@xxxxxxx>
Cc: Andreas Noever<andreas.noever@xxxxxxxxx>
Cc: Arnd Bergmann<arnd@xxxxxxxx>
Cc: Bjorn Helgaas<bhelgaas@xxxxxxxxxx>
Cc: Corey Minyard<minyard@xxxxxxx>
Cc: Christian Borntraeger<borntraeger@xxxxxxxxxx>
Cc: David Kershner<david.kershner@xxxxxxxxxx>
Cc: "David S. Miller"<davem@xxxxxxxxxxxxx>
Cc: David Airlie<airlied@xxxxxxxx>
Cc: Felipe Balbi<balbi@xxxxxxxxxx>
Cc: Frank Rowand<frowand.list@xxxxxxxxx>
Cc: Grygorii Strashko<grygorii.strashko@xxxxxx>
Cc: Harald Freudenberger<freude@xxxxxxxxxxxxx>
Cc: Hartmut Knaack<knaack.h@xxxxxx>
Cc: Heiko Stuebner<heiko@xxxxxxxxx>
Cc: Jason Gunthorpe<jgg@xxxxxxxx>
Cc: Jonathan Cameron<jic23@xxxxxxxxxx>
Cc: Jonathan Cameron<jic23@xxxxxxxxxx>
Cc: "James E.J. Bottomley"<jejb@xxxxxxxxxxxxx>
Cc: Len Brown<lenb@xxxxxxxxxx>
Cc: Mark Brown<broonie@xxxxxxxxxx>
Cc: Michael Ellerman<mpe@xxxxxxxxxxxxxx>
Cc: Michael Jamet<michael.jamet@xxxxxxxxx>
Cc: "Martin K. Petersen"<martin.petersen@xxxxxxxxxx>
Cc: Peter Oberparleiter<oberpar@xxxxxxxxxxxxx>
Cc: Rob Herring<robh+dt@xxxxxxxxxx>
Cc: Sebastian Ott<sebott@xxxxxxxxxxxxx>
Cc: Srinivas Kandagatla<srinivas.kandagatla@xxxxxxxxxx>
Cc: Yehezkel Bernat<YehezkelShB@xxxxxxxxx>
Cc: Wolfram Sang<wsa@xxxxxxxxxxxxx>
Cc:rafael@xxxxxxxxxx
Cc: Greg Kroah-Hartman<gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Suzuki K Poulose<suzuki.poulose@xxxxxxx>
---
arch/powerpc/platforms/pseries/ibmebus.c | 4 ++--
drivers/acpi/acpi_lpss.c | 4 ++--
drivers/acpi/sleep.c | 2 +-
drivers/acpi/utils.c | 4 ++--
drivers/base/bus.c | 6 +++---
drivers/base/devcon.c | 2 +-
drivers/char/ipmi/ipmi_si_platform.c | 2 +-
drivers/firmware/efi/dev-path-parser.c | 4 ++--
drivers/gpu/drm/drm_mipi_dsi.c | 2 +-
drivers/hwtracing/coresight/coresight.c | 6 +++---
drivers/hwtracing/coresight/of_coresight.c | 2 +-
drivers/hwtracing/intel_th/core.c | 5 ++---
drivers/i2c/i2c-core-acpi.c | 4 ++--
drivers/i2c/i2c-core-of.c | 4 ++--
drivers/iio/inkern.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 2 +-
drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 2 +-
drivers/net/ethernet/ti/cpsw-phy-sel.c | 4 ++--
drivers/net/ethernet/ti/davinci_emac.c | 2 +-
drivers/net/ethernet/toshiba/tc35815.c | 4 ++--
drivers/nvmem/core.c | 2 +-


For NVMEM changes,

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>


--srini