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

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Date:   Mon, 20 Sep 2021 22:02:10 +0200
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH] media: hantro: Constify static struct v4l2_m2m_ops

The only usage of vpu_m2m_ops is to pass its address to v4l2_m2m_init()
which has a pointer to const struct 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/hantro/hantro_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index f23fc14b3562..fb82b9297a2b 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -179,7 +179,7 @@ static void device_run(void *priv)
 	hantro_job_finish_no_pm(ctx->dev, ctx, VB2_BUF_STATE_ERROR);
 }
 
-static struct v4l2_m2m_ops vpu_m2m_ops = {
+static const struct v4l2_m2m_ops vpu_m2m_ops = {
 	.device_run = device_run,
 };
 
-- 
2.33.0