linux-kernel - [PATCH] media: imx: Constify static struct v4l2_m2m

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Message-Id: <20211012214703.25433-1-rikard.falkeborn@gmail.com>
Date:   Tue, 12 Oct 2021 23:47:03 +0200
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH] media: imx: Constify static struct v4l2_m2m_ops

The only usage of m2m_ops is to pass its address to v4l2_m2m_init(),
which  takes a pointer to const v4l2_m2m_ops as argument. Make it const
to allow the compiler to put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/staging/media/imx/imx-media-csc-scaler.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/imx/imx-media-csc-scaler.c b/drivers/staging/media/imx/imx-media-csc-scaler.c
index eb6da9b9d8ba..1fd39a2fca98 100644
--- a/drivers/staging/media/imx/imx-media-csc-scaler.c
+++ b/drivers/staging/media/imx/imx-media-csc-scaler.c
@@ -820,7 +820,7 @@ static const struct v4l2_file_operations ipu_csc_scaler_fops = {
 	.mmap		= v4l2_m2m_fop_mmap,
 };
 
-static struct v4l2_m2m_ops m2m_ops = {
+static const struct v4l2_m2m_ops m2m_ops = {
 	.device_run	= device_run,
 	.job_abort	= job_abort,
 };
-- 
2.33.0