From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Cc: Mark Brown <broonie@kernel.org>, Jiri Kosina <trivial@kernel.org>,
Sergei Shtylyov <sergei.shtylyov@gmail.com>,
Pavel Machek <pavel@denx.de>,
linux-spi <linux-spi@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
Prabhakar <prabhakar.csengg@gmail.com>,
Chris Brandt <Chris.Brandt@renesas.com>
Subject: Re: [PATCH 2/2] spi: rpc-if: Remove CONFIG_PM_SLEEP ifdefery
Date: Mon, 4 Jan 2021 13:34:16 +0100 [thread overview]
Message-ID: <CAMuHMdVCD52-eTnEwftGz8ExMkZkJRyM=3M8zU11yhn1UNPxxA@mail.gmail.com> (raw)
In-Reply-To: <20201230145708.28544-3-prabhakar.mahadev-lad.rj@bp.renesas.com>
Hi Prabhakar,
On Wed, Dec 30, 2020 at 4:00 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Use __maybe_unused for the suspend()/resume() hooks and get rid of
> the CONFIG_PM_SLEEP ifdefery to improve the code.
>
> Suggested-by: Pavel Machek <pavel@denx.de>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Thanks for your patch!
> --- a/drivers/spi/spi-rpc-if.c
> +++ b/drivers/spi/spi-rpc-if.c
> @@ -176,15 +176,14 @@ static int rpcif_spi_remove(struct platform_device *pdev)
> return 0;
> }
>
> -#ifdef CONFIG_PM_SLEEP
> -static int rpcif_spi_suspend(struct device *dev)
> +static int __maybe_unused rpcif_spi_suspend(struct device *dev)
> {
> struct spi_controller *ctlr = dev_get_drvdata(dev);
>
> return spi_controller_suspend(ctlr);
> }
>
> -static int rpcif_spi_resume(struct device *dev)
> +static int __maybe_unused rpcif_spi_resume(struct device *dev)
> {
> struct spi_controller *ctlr = dev_get_drvdata(dev);
>
> @@ -192,17 +191,13 @@ static int rpcif_spi_resume(struct device *dev)
> }
>
> static SIMPLE_DEV_PM_OPS(rpcif_spi_pm_ops, rpcif_spi_suspend, rpcif_spi_resume);
> -#define DEV_PM_OPS (&rpcif_spi_pm_ops)
> -#else
> -#define DEV_PM_OPS NULL
> -#endif
>
> static struct platform_driver rpcif_spi_driver = {
> .probe = rpcif_spi_probe,
> .remove = rpcif_spi_remove,
> .driver = {
> .name = "rpc-if-spi",
> - .pm = DEV_PM_OPS,
> + .pm = &rpcif_spi_pm_ops,
You're aware rpcif_spi_pm_ops is now always referenced and thus emitted,
increasing kernel size by 92 bytes if CONFIG_PM_SLEEP=n?
This may matter for RZ/A SoCs running from internal SRAM.
> },
> };
> module_platform_driver(rpcif_spi_driver);
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2021-01-04 12:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 14:57 [PATCH 0/2] spi: rpc-if: Trivial fixes Lad Prabhakar
2020-12-30 14:57 ` [PATCH 1/2] spi: rpc-if: Avoid use of C++ style comments Lad Prabhakar
2020-12-30 16:27 ` Sergei Shtylyov
2020-12-30 23:16 ` Lad, Prabhakar
2020-12-30 14:57 ` [PATCH 2/2] spi: rpc-if: Remove CONFIG_PM_SLEEP ifdefery Lad Prabhakar
2020-12-30 18:05 ` Pavel Machek
2021-01-04 12:34 ` Geert Uytterhoeven [this message]
2021-01-04 21:25 ` Lad, Prabhakar
2021-01-04 21:30 ` Mark Brown
2021-01-04 23:40 ` Pavel Machek
2021-01-05 7:37 ` Geert Uytterhoeven
2021-01-05 10:42 ` Pavel Machek
2021-01-05 11:11 ` Geert Uytterhoeven
2020-12-31 13:29 ` (subset) [PATCH 0/2] spi: rpc-if: Trivial fixes Mark Brown
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