From: Rui Miguel Silva <rmfrfs@gmail.com>
To: Colin King <colin.king@canonical.com>
Cc: Steve Longerbeam <slongerbeam@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
linux-arm-kernel@lists.infradead.org,
kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] media: imx7-mipi-csis: make array 'registers' static const, makes object smaller
Date: Tue, 10 Sep 2019 09:43:01 +0100 [thread overview]
Message-ID: <m3y2ywley2.fsf@gmail.com> (raw)
In-Reply-To: <20190906150823.30859-1-colin.king@canonical.com>
Hi Colin,
Thanks for the patch.
On Fri 06 Sep 2019 at 16:08, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> Don't populate the array 'registers' on the stack but instead make it
> static const. Makes the object code smaller by 10 bytes.
>
>
> Before:
> text data bss dec hex filename
> 20138 5196 128 25462 6376 staging/media/imx/imx7-mipi-csis.o
>
> After:
> text data bss dec hex filename
> 20032 5292 128 25452 636c staging/media/imx/imx7-mipi-csis.o
>
> (gcc version 9.2.1, amd64)
>
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
Looks very good to me.
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Cheers,
Rui
> ---
> drivers/staging/media/imx/imx7-mipi-csis.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
> index 73d8354e618c..f8a97b7e2535 100644
> --- a/drivers/staging/media/imx/imx7-mipi-csis.c
> +++ b/drivers/staging/media/imx/imx7-mipi-csis.c
> @@ -293,7 +293,7 @@ static int mipi_csis_dump_regs(struct csi_state *state)
> struct device *dev = &state->pdev->dev;
> unsigned int i;
> u32 cfg;
> - struct {
> + static const struct {
> u32 offset;
> const char * const name;
> } registers[] = {
prev parent reply other threads:[~2019-09-10 8:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-06 15:08 [PATCH] media: imx7-mipi-csis: make array 'registers' static const, makes object smaller Colin King
2019-09-10 8:43 ` Rui Miguel Silva [this message]
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