linux-kernel - Re: [PATCH] hwspinlock: sirf: Remove the redundant 'of_match

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Date:   Fri, 10 Jul 2020 18:08:14 +1200
From:   Barry Song <baohua@...nel.org>
To:     Baolin Wang <baolin.wang7@...il.com>
Cc:     Ohad Ben-Cohen <ohad@...ery.com>, bjorn.andersson@...aro.org,
        linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] hwspinlock: sirf: Remove the redundant 'of_match_ptr'

Baolin Wang <baolin.wang7@...il.com> 于2020年6月9日周二 上午12:22写道：
>
> Remove the the redundant 'of_match_ptr' macro to fix below warning
> when the CONFIG_OF is not selected.
>
> All warnings:
> drivers/hwspinlock/sirf_hwspinlock.c:87:34: warning: unused variable
> 'sirf_hwpinlock_ids' [-Wunused-const-variable]
>
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Baolin Wang <baolin.wang7@...il.com>
> ---
>  drivers/hwspinlock/sirf_hwspinlock.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hwspinlock/sirf_hwspinlock.c b/drivers/hwspinlock/sirf_hwspinlock.c
> index 823d3c4f621e..a3f77120bad7 100644
> --- a/drivers/hwspinlock/sirf_hwspinlock.c
> +++ b/drivers/hwspinlock/sirf_hwspinlock.c
> @@ -94,7 +94,7 @@ static struct platform_driver sirf_hwspinlock_driver = {
>         .probe = sirf_hwspinlock_probe,
>         .driver = {
>                 .name = "atlas7_hwspinlock",
> -               .of_match_table = of_match_ptr(sirf_hwpinlock_ids),
> +               .of_match_table = sirf_hwpinlock_ids,

is it better to do?

#ifdef CONFIG_OF
static const struct of_device_id sirf_hwpinlock_ids[] = {
        { .compatible = "sirf,hwspinlock", },
        {},
};
MODULE_DEVICE_TABLE(of, sirf_hwpinlock_ids);
#endif

>         },
>  };
>
> --
> 2.17.1

Thanks
barry