Re: [PATCH resend] gpiolib: Let gpiod_add_lookup_table() call gpiod_add_lookup_tables()

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On Fri, Dec 3, 2021 at 2:48 PM Geert Uytterhoeven
<geert+renesas@xxxxxxxxx> wrote:
>
> This saves 20 bytes on arm32, and 44 bytes on arm64.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> ---
> Interestingly, making gpiod_add_lookup_table() a static inline function
> in <linux/gpio/machine.h> instead would increase the caller's code size
> by 68 bytes on arm32...
> ---
>  drivers/gpio/gpiolib.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> index abfbf546d1599ebc..85168f88a7fec774 100644
> --- a/drivers/gpio/gpiolib.c
> +++ b/drivers/gpio/gpiolib.c
> @@ -3487,11 +3487,7 @@ EXPORT_SYMBOL_GPL(gpiod_set_array_value_cansleep);
>   */
>  void gpiod_add_lookup_table(struct gpiod_lookup_table *table)
>  {
> -       mutex_lock(&gpio_lookup_lock);
> -
> -       list_add_tail(&table->list, &gpio_lookup_list);
> -
> -       mutex_unlock(&gpio_lookup_lock);
> +       gpiod_add_lookup_tables(&table, 1);
>  }
>  EXPORT_SYMBOL_GPL(gpiod_add_lookup_table);
>
> --
> 2.25.1
>

Applied, thanks!

Bart



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