Messages in this thread | | | From | Linus Walleij <> | Date | Sun, 27 Dec 2020 22:37:09 +0100 | Subject | Re: [PATCH] gpiolib: cdev: fix frame size warning in gpio_ioctl() |
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On Sun, Dec 27, 2020 at 5:11 PM Kent Gibson <warthog618@gmail.com> wrote:
> The kernel test robot reports the following warning in [1]: > > drivers/gpio/gpiolib-cdev.c: In function 'gpio_ioctl': > >>drivers/gpio/gpiolib-cdev.c:1437:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=] > > Refactor gpio_ioctl() to handle each ioctl in its own helper function > and so reduce the variables stored on the stack to those explicitly > required to service the ioctl at hand. > > The lineinfo_get_v1() helper handles both the GPIO_GET_LINEINFO_IOCTL > and GPIO_GET_LINEINFO_WATCH_IOCTL, as per the corresponding v2 > implementation - lineinfo_get(). > > [1] https://lore.kernel.org/lkml/202012270910.VW3qc1ER-lkp@intel.com/ > > Fixes: aad955842d1c ("gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL") > Reported-by: kernel test robot <lkp@intel.com> > Signed-off-by: Kent Gibson <warthog618@gmail.com>
That's an interesting regression. Anyway the kernel look better after than before the patch, so Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Bartosz will pick patches for Torvalds this kernel cycle.
Yours, Linus Walleij
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