[PATCH v2 0/3] driver core: Constify the signature of device_show/store_*()

From: Thomas Weißschuh

Date: Mon Sep 07 2026 - 01:49:30 EST

Prepare for the constification of 'struct dev_ext_attribute' instances
by changing the signature of the standard callback functions.
The first two patches prepare some drivers to handle both the const and
non-const callback variants.

Intended for the driver-core tree.

Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
---
Changes in v2:
- Rebase on v7.3-rc1.
- Cover a few more drivers in drivers/perf/.
- Link to v1: https://patch.msgid.link/20260714-sysfs-const-attr-dev_ext_attr-v1-0-6b2c0435d621@xxxxxxxxxxxxxx

---
Thomas Weißschuh (3):
x86/mce: Use __DEVICE_ATTR() macro to initialize dev_ext_attribute
drivers: perf: Use __DEVICE_ATTR() macro to initialize dev_ext_attribute
driver core: Constify the signature of device_show/store_*()

arch/powerpc/perf/hv-24x7.c | 2 +-
arch/x86/kernel/cpu/mce/core.c | 6 +++---
drivers/base/core.c | 30 ++++++++++++++---------------
drivers/perf/alibaba_uncore_drw_pmu.c | 2 +-
drivers/perf/arm-cci.c | 2 +-
drivers/perf/arm-ccn.c | 2 +-
drivers/perf/arm_cspmu/arm_cspmu.h | 2 +-
drivers/perf/arm_dsu_pmu.c | 2 +-
drivers/perf/arm_spe_pmu.c | 6 +++---
drivers/perf/cxl_pmu.c | 10 +++++-----
drivers/perf/fsl_imx8_ddr_perf.c | 2 +-
drivers/perf/fujitsu_uncore_pmu.c | 2 +-
drivers/perf/hisilicon/hisi_pcie_pmu.c | 2 +-
drivers/perf/hisilicon/hisi_uncore_pmu.h | 6 +++---
drivers/perf/hisilicon/hns3_pmu.c | 6 +++---
drivers/perf/nvidia_t410_c2c_pmu.c | 2 +-
drivers/perf/nvidia_t410_cmem_latency_pmu.c | 12 ++++++------
drivers/perf/qcom_l3_pmu.c | 8 ++++----
drivers/perf/starfive_starlink_pmu.c | 2 +-
drivers/perf/xgene_pmu.c | 2 +-
include/linux/device.h | 14 +++++++-------
21 files changed, 61 insertions(+), 61 deletions(-)
---
base-commit: cee9395acd8043be0644b25c34bfa86623f2b935
change-id: 20260712-sysfs-const-attr-dev_ext_attr-dbf669fdfd4e

Best regards,
--
Thomas Weißschuh <linux@xxxxxxxxxxxxxx>