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Message-Id: <20240811-const_dfc_done-v1-0-9d85e3f943cb@quicinc.com>
Date: Sun, 11 Aug 2024 10:24:51 +0800
From: Zijun Hu <zijun_hu@...oud.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Rafael J. Wysocki" <rafael@...nel.org>
Cc: Zijun Hu <zijun_hu@...oud.com>, linux-kernel@...r.kernel.org,
Zijun Hu <quic_zijuhu@...cinc.com>
Subject: [PATCH 00/27] driver core: Make device_find_child()'s match
function take a const pointer
This patch series is to constify the following core driver API:
struct device *device_find_child(struct device *dev, void *data,
int (*match)(struct device *dev, void *data));
to
struct device *device_find_child(struct device *dev, const void *data,
device_match_t match);
typedef int (*device_match_t)(struct device *dev, const void *data);
It mainly make various device_find_child()'s match functions take
const void * as match data type.
Why to constify the API?
(1) It does not make sense, also does not need to, for such device
finding operation to modify caller's match data which is mainly
used for comparison.
(2) It will make the API's match function parameter have the same
signature as all other APIs (bus|class|driver)_find_device().
Previous discussion link:
https://lore.kernel.org/lkml/917359cc-a421-41dd-93f4-d28937fe2325@icloud.com
Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
---
Zijun Hu (27):
driver core: Constify driver API device_find_child()
Bluetooth: hci_sysfs: Make device_find_child()'s match function take a const pointer
serial: core: Make device_find_child()'s match function take a const pointer
usb: typec: class: Make device_find_child()'s match function take a const pointer
gpio: sim: Make device_find_child()'s match function take a const pointer
slimbus: core: Make device_find_child()'s match function take a const pointer
scsi: iscsi: Make device_find_child()'s match function take a const pointer
scsi: iscsi: Constify driver API iscsi_find_flashnode_sess()
scsi: qla4xxx: Make iscsi_find_flashnode_sess()'s match function take a const pointer
pwm: Make device_find_child()'s match function take a const pointer
media: pci: mgb4: Make device_find_child()'s match function take a const pointer
range.h: Make range_contains() take const struct range * as parameter type
cxl/region: Make device_find_child()'s match function take a const pointer
cxl/pmem: Make device_find_child()'s match function take a const pointer
cxl/core/pci: Make device_find_child()'s match function take a const pointer
sparc: vio: Make device_find_child()'s match function take a const pointer
bus: fsl-mc: Make device_find_child()'s match function take a const pointer
block: sunvdc: Make device_find_child()'s match function take a const pointer
firmware: arm_scmi: Make device_find_child()'s match function take a const pointer
efi: dev-path-parser: Make device_find_child()'s match function take a const pointer
drm/mediatek: Make device_find_child()'s match function take a const pointer
nvdimm: Make device_find_child()'s match function take a const pointer
libnvdimm: Make device_find_child()'s match function take a const pointer
rpmsg: core: Make device_find_child()'s match function take a const pointer
thunderbolt: Make device_find_child()'s match function take a const pointer
net: dsa: Make device_find_child()'s match function take a const pointer
cxl/test: Make device_find_child()'s match function take a const pointer
arch/sparc/kernel/vio.c | 6 +++---
drivers/base/core.c | 11 +++--------
drivers/block/sunvdc.c | 8 ++++----
drivers/bus/fsl-mc/dprc-driver.c | 8 ++++----
drivers/cxl/core/pci.c | 4 ++--
drivers/cxl/core/pmem.c | 2 +-
drivers/cxl/core/region.c | 19 +++++++++++--------
drivers/firmware/arm_scmi/bus.c | 4 ++--
drivers/firmware/efi/dev-path-parser.c | 4 ++--
drivers/gpio/gpio-sim.c | 2 +-
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 +-
drivers/media/pci/mgb4/mgb4_core.c | 4 ++--
drivers/nvdimm/bus.c | 2 +-
drivers/nvdimm/claim.c | 4 ++--
drivers/pwm/core.c | 2 +-
drivers/rpmsg/rpmsg_core.c | 4 ++--
drivers/scsi/qla4xxx/ql4_os.c | 3 ++-
drivers/scsi/scsi_transport_iscsi.c | 10 +++++-----
drivers/slimbus/core.c | 11 ++++++-----
drivers/thunderbolt/retimer.c | 2 +-
drivers/thunderbolt/xdomain.c | 2 +-
drivers/tty/serial/serial_core.c | 4 ++--
drivers/usb/typec/class.c | 8 ++++----
include/linux/device.h | 4 ++--
include/linux/range.h | 3 ++-
include/scsi/scsi_transport_iscsi.h | 4 ++--
net/bluetooth/hci_sysfs.c | 2 +-
net/dsa/dsa.c | 2 +-
tools/testing/cxl/test/cxl.c | 2 +-
29 files changed, 72 insertions(+), 71 deletions(-)
---
base-commit: bfa54a793ba77ef696755b66f3ac4ed00c7d1248
change-id: 20240811-const_dfc_done-c5c206675c6b
prerequisite-change-id: 20240801-dev_match_api-415a755fcffb:v2
prerequisite-patch-id: 475b810c1ccacab955c654c223d5214f70c4f6c8
prerequisite-change-id: 20240811-const_dfc_prepare-3ff23c6598e5:v1
prerequisite-patch-id: 81a5ccaa144a7732cae29fc5ea1a13426becee5b
prerequisite-patch-id: 9b77254186b7366809f949f5643f9437fa2528a0
prerequisite-patch-id: 95308bb3eedcf8c4a5e30aa3071116148495329e
prerequisite-patch-id: ee643a52674e2aead02f7be3d011d88507970436
prerequisite-patch-id: 0625de1f03ef4350b1828f0faff7a9d9bdebae94
Best regards,
--
Zijun Hu <quic_zijuhu@...cinc.com>
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