[0/3] w1: Constify w1_family_ops

Message

Rikard Falkeborn Oct. 4, 2020, 7:31 p.m. UTC

None of the current instances of struct w1_family_ops in the kernel is
modified. Constify these to let the compiler put them in read-only memory.

The first patch changes the fops field in w1_family struct to a pointer to
const and makes a local variable a pointer to const to avoid a compiler
warning. This patch is a prerequisite for the second and third patches
which constifies the static structs in drivers in w1 and power. These
changes was done with coccinelle (details in the commit messages).

With these changes applied, all instances of struct w1_family_ops in the
kernel are const.

Build-tested on x86 allmodconfig.

Rikard Falkeborn (3):
  w1: Constify struct w1_family_ops
  w1: Constify static w1_family_ops structs
  power: supply: Constify static w1_family_ops structs

 drivers/power/supply/bq27xxx_battery_hdq.c | 2 +-
 drivers/power/supply/ds2760_battery.c      | 2 +-
 drivers/power/supply/max1721x_battery.c    | 2 +-
 drivers/w1/slaves/w1_ds2405.c              | 2 +-
 drivers/w1/slaves/w1_ds2406.c              | 2 +-
 drivers/w1/slaves/w1_ds2408.c              | 2 +-
 drivers/w1/slaves/w1_ds2413.c              | 2 +-
 drivers/w1/slaves/w1_ds2423.c              | 2 +-
 drivers/w1/slaves/w1_ds2430.c              | 2 +-
 drivers/w1/slaves/w1_ds2431.c              | 2 +-
 drivers/w1/slaves/w1_ds2433.c              | 2 +-
 drivers/w1/slaves/w1_ds2438.c              | 2 +-
 drivers/w1/slaves/w1_ds250x.c              | 2 +-
 drivers/w1/slaves/w1_ds2780.c              | 2 +-
 drivers/w1/slaves/w1_ds2781.c              | 2 +-
 drivers/w1/slaves/w1_ds2805.c              | 2 +-
 drivers/w1/slaves/w1_ds28e04.c             | 2 +-
 drivers/w1/slaves/w1_ds28e17.c             | 2 +-
 drivers/w1/slaves/w1_therm.c               | 6 +++---
 drivers/w1/w1.c                            | 4 ++--
 include/linux/w1.h                         | 2 +-
 21 files changed, 24 insertions(+), 24 deletions(-)