[PATCH 0/8] nvmem: make reg_write() take a const void *

[Link Mauve]

This callback used to take a mutable void * for no reason, which causes
the compiler to be unaware that the val buffer should never be modified
by the callback.

This was found while drafting the nvmem-provider Rust abstraction.

I’ve split this series based on the subsystem each patch affects, but I
think it should go through the nvmem tree in one go after gathering the
acks from the other subsystem maintainers.

I’ve been told previously to not include too many maintainers in Cc, but
I don’t know which ones to remove from the get_maintainers.pl output, so
I’ve still included everyone, sorry about that.

Thanks,

Link Mauve (8):
  nvmem: core: make reg_write() take a const void *
  nvmem: make all reg_write callbacks take const void *
  rtc: make all reg_write callbacks take const void *
  misc: make all reg_write callbacks take const void *
  iio: pressure: bmp280: make reg_write callback take const void *
  firmware: meson_sm: make reg_write callback take const void *
  mfd: twl-core: make reg_write callback take const void *
  media: ov2740: remove NULL reg_write callback

 drivers/firmware/meson/meson_sm.c                 | 2 +-
 drivers/iio/pressure/bmp280-core.c                | 6 +++---
 drivers/media/i2c/ov2740.c                        | 1 -
 drivers/mfd/twl-core.c                            | 2 +-
 drivers/misc/ds1682.c                             | 2 +-
 drivers/misc/eeprom/at24.c                        | 4 ++--
 drivers/misc/eeprom/at25.c                        | 2 +-
 drivers/misc/eeprom/eeprom_93xx46.c               | 4 ++--
 drivers/misc/eeprom/m24lr.c                       | 2 +-
 drivers/misc/keba/cp500.c                         | 2 +-
 drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c | 8 ++++----
 drivers/nvmem/bcm-ocotp.c                         | 4 ++--
 drivers/nvmem/core.c                              | 2 +-
 drivers/nvmem/imx-ocotp-scu.c                     | 4 ++--
 drivers/nvmem/imx-ocotp.c                         | 4 ++--
 drivers/nvmem/lan9662-otpc.c                      | 4 ++--
 drivers/nvmem/lpc18xx_eeprom.c                    | 4 ++--
 drivers/nvmem/max77759-nvmem.c                    | 2 +-
 drivers/nvmem/meson-efuse.c                       | 4 ++--
 drivers/nvmem/qcom-spmi-sdam.c                    | 2 +-
 drivers/nvmem/qfprom.c                            | 4 ++--
 drivers/nvmem/rave-sp-eeprom.c                    | 4 ++--
 drivers/nvmem/snvs_lpgpr.c                        | 2 +-
 drivers/nvmem/sprd-efuse.c                        | 4 ++--
 drivers/nvmem/stm32-bsec-optee-ta.c               | 2 +-
 drivers/nvmem/stm32-bsec-optee-ta.h               | 4 ++--
 drivers/nvmem/stm32-romem.c                       | 6 +++---
 drivers/nvmem/zynqmp_nvmem.c                      | 4 ++--
 drivers/rtc/rtc-abx80x.c                          | 4 ++--
 drivers/rtc/rtc-cmos.c                            | 2 +-
 drivers/rtc/rtc-ds1305.c                          | 4 ++--
 drivers/rtc/rtc-ds1307.c                          | 2 +-
 drivers/rtc/rtc-ds1343.c                          | 2 +-
 drivers/rtc/rtc-ds1511.c                          | 2 +-
 drivers/rtc/rtc-ds1553.c                          | 4 ++--
 drivers/rtc/rtc-ds1685.c                          | 4 ++--
 drivers/rtc/rtc-ds1742.c                          | 4 ++--
 drivers/rtc/rtc-ds3232.c                          | 2 +-
 drivers/rtc/rtc-isl12026.c                        | 4 ++--
 drivers/rtc/rtc-isl1208.c                         | 2 +-
 drivers/rtc/rtc-m48t59.c                          | 4 ++--
 drivers/rtc/rtc-m48t86.c                          | 2 +-
 drivers/rtc/rtc-max31335.c                        | 2 +-
 drivers/rtc/rtc-meson.c                           | 2 +-
 drivers/rtc/rtc-omap.c                            | 4 ++--
 drivers/rtc/rtc-pcf2127.c                         | 2 +-
 drivers/rtc/rtc-pcf85063.c                        | 2 +-
 drivers/rtc/rtc-pcf85363.c                        | 4 ++--
 drivers/rtc/rtc-rp5c01.c                          | 4 ++--
 drivers/rtc/rtc-rv3028.c                          | 6 +++---
 drivers/rtc/rtc-rv3029c2.c                        | 2 +-
 drivers/rtc/rtc-rv3032.c                          | 4 ++--
 drivers/rtc/rtc-rv8803.c                          | 4 ++--
 drivers/rtc/rtc-rx8581.c                          | 4 ++--
 drivers/rtc/rtc-s35390a.c                         | 4 ++--
 drivers/rtc/rtc-stk17ta8.c                        | 4 ++--
 drivers/rtc/rtc-sun6i.c                           | 4 ++--
 drivers/rtc/rtc-ti-k3.c                           | 2 +-
 drivers/rtc/rtc-twl.c                             | 2 +-
 include/linux/firmware/meson/meson_sm.h           | 2 +-
 include/linux/mfd/twl.h                           | 4 ++--
 include/linux/nvmem-provider.h                    | 2 +-
 62 files changed, 100 insertions(+), 101 deletions(-)

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2.55.0