Re: [PATCH] gpiolib: demote the hogging log messages to debug

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On Mon, Jun 5, 2023 at 6:53 AM Bartosz Golaszewski <brgl@xxxxxxxx> wrote:
>
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> Drivers should be silent when they work correctly. There's no reason to
> emit info messages when GPIO lines are hogged. Demote the message to
> debug.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> Suggested-by: Kent Gibson <warthog618@xxxxxxxxx>
> ---
>  drivers/gpio/gpiolib.c |  2 +-
>  drivers/of/unittest.c  | 16 ++++++++--------
>  2 files changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> index a7220e04a93e..e4515bda8915 100644
> --- a/drivers/gpio/gpiolib.c
> +++ b/drivers/gpio/gpiolib.c
> @@ -4243,7 +4243,7 @@ int gpiod_hog(struct gpio_desc *desc, const char *name,
>         /* Mark GPIO as hogged so it can be identified and removed later */
>         set_bit(FLAG_IS_HOGGED, &desc->flags);
>
> -       gpiod_info(desc, "hogged as %s%s\n",
> +       gpiod_dbg(desc, "hogged as %s%s\n",
>                 (dflags & GPIOD_FLAGS_BIT_DIR_OUT) ? "output" : "input",
>                 (dflags & GPIOD_FLAGS_BIT_DIR_OUT) ?
>                   (dflags & GPIOD_FLAGS_BIT_DIR_VAL) ? "/high" : "/low" : "");
> diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
> index 2191c0136531..0060334a98a7 100644
> --- a/drivers/of/unittest.c
> +++ b/drivers/of/unittest.c
> @@ -1849,19 +1849,19 @@ static void __init of_unittest_overlay_gpio(void)
>          * driver is registered
>          */
>
> -       EXPECT_BEGIN(KERN_INFO,
> +       EXPECT_BEGIN(KERN_DEBUG,
>                      "gpio-<<int>> (line-B-input): hogged as input\n");

As debug messages are normally off, I think you can just remove these.

Rob




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