Re: [PATCH v4 0/6] gpio: Refactor and add selftest

[Bartosz Golaszewski]

On Mon, 23 Feb 2026 07:17:20 +0100, Tzung-Bi Shih <tzungbi@xxxxxxxxxx> said:
> The series is separated from v3 to lessen the burden on the subsequent
> revocable work per suggestion in
> https://lore.kernel.org/all/CAMRc=MfQumD1ULx7yU4W2sx=35wyQf7-v4tSf44OqEu3JDBUAg@xxxxxxxxxxxxxx/.
>
> The series is based on v7.0-rc1 and applies after
> https://lore.kernel.org/all/20260205092840.2574840-1-tzungbi@xxxxxxxxxx.
>
> ---
> v4:
> - Separate the first 6 patches from v3.
>
> v3: https://lore.kernel.org/all/20260213092958.864411-1-tzungbi@xxxxxxxxxx
>
> Tzung-Bi Shih (6):
>   gpio: Access `gpio_bus_type` in gpiochip_setup_dev()
>   gpio: Remove redundant check for struct gpio_chip
>   gpio: sysfs: Remove redundant check for struct gpio_chip
>   gpio: Ensure struct gpio_chip for gpiochip_setup_dev()
>   gpio: cdev: Don't check struct gpio_chip in gpio_chrdev_open()
>   selftests: gpio: Add gpio-cdev-uaf tests
>
>  drivers/gpio/gpiolib-cdev.c                   |  20 +-
>  drivers/gpio/gpiolib-cdev.h                   |   2 +-
>  drivers/gpio/gpiolib-sysfs.c                  |  32 +-
>  drivers/gpio/gpiolib-sysfs.h                  |   8 +-
>  drivers/gpio/gpiolib.c                        |  46 +--
>  tools/testing/selftests/gpio/Makefile         |   5 +-
>  tools/testing/selftests/gpio/gpio-cdev-uaf.c  | 292 ++++++++++++++++++
>  tools/testing/selftests/gpio/gpio-cdev-uaf.sh |  63 ++++
>  8 files changed, 402 insertions(+), 66 deletions(-)
>  create mode 100644 tools/testing/selftests/gpio/gpio-cdev-uaf.c
>  create mode 100755 tools/testing/selftests/gpio/gpio-cdev-uaf.sh
>
> --
> 2.51.0
>
>

Hi Tzung-Bi!

This no longer applies on top of current linux-next. Could you please rabase
and resend?

Thanks!
Bart