2022-09-15 08:15:31

by Rex-BC Chen (陳柏辰)

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Subject: [PATCH 3/3] drm/mediatek: dp: Fix warning in mtk_dp_video_mute()

Warning:
../drivers/gpu/drm/mediatek/mtk_dp.c: In function ‘mtk_dp_video_mute’:
../drivers/gpu/drm/mediatek/mtk_dp.c:947:23: warning: format ‘%x’
expects argument of type ‘unsigned int’, but argument 4 has type ‘long
unsigned int’ [-Wformat=]
947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../include/linux/dev_printk.h:129:27: note: in definition of macro ‘dev_printk’
129 | _dev_printk(level, dev, fmt, ##__VA_ARGS__); \
| ^~~
../include/linux/dev_printk.h:163:31: note: in expansion of macro ‘dev_fmt’
163 | dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
| ^~~~~~~
../drivers/gpu/drm/mediatek/mtk_dp.c:947:2: note: in expansion of
macro ‘dev_dbg’
947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
| ^~~~~~~
../drivers/gpu/drm/mediatek/mtk_dp.c:947:36: note: format string is defined here
947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
| ~^
| |
| unsigned int
| %lx

To fix this issue, we use %s to replace 0x%x.

Reported-by: Chun-Kuang Hu <[email protected]>
Signed-off-by: Bo-Chen Chen <[email protected]>
---
drivers/gpu/drm/mediatek/mtk_dp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index c72c646e25e9..d58e98b2f83a 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -1222,8 +1222,8 @@ static void mtk_dp_video_mute(struct mtk_dp *mtk_dp, bool enable)
mtk_dp->data->smc_cmd, enable,
0, 0, 0, 0, 0, &res);

- dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
- mtk_dp->data->smc_cmd, enable, res.a0, res.a1);
+ dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: %s, ret: 0x%lx-0x%lx\n",
+ mtk_dp->data->smc_cmd, enable ? "enable" : "disable", res.a0, res.a1);
}

static void mtk_dp_audio_mute(struct mtk_dp *mtk_dp, bool mute)
--
2.18.0


Subject: Re: [PATCH 3/3] drm/mediatek: dp: Fix warning in mtk_dp_video_mute()

Il 15/09/22 09:50, Bo-Chen Chen ha scritto:
> Warning:
> ../drivers/gpu/drm/mediatek/mtk_dp.c: In function ‘mtk_dp_video_mute’:
> ../drivers/gpu/drm/mediatek/mtk_dp.c:947:23: warning: format ‘%x’
> expects argument of type ‘unsigned int’, but argument 4 has type ‘long
> unsigned int’ [-Wformat=]
> 947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ../include/linux/dev_printk.h:129:27: note: in definition of macro ‘dev_printk’
> 129 | _dev_printk(level, dev, fmt, ##__VA_ARGS__); \
> | ^~~
> ../include/linux/dev_printk.h:163:31: note: in expansion of macro ‘dev_fmt’
> 163 | dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
> | ^~~~~~~
> ../drivers/gpu/drm/mediatek/mtk_dp.c:947:2: note: in expansion of
> macro ‘dev_dbg’
> 947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
> | ^~~~~~~
> ../drivers/gpu/drm/mediatek/mtk_dp.c:947:36: note: format string is defined here
> 947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
> | ~^
> | |
> | unsigned int
> | %lx
>
> To fix this issue, we use %s to replace 0x%x.
>
> Reported-by: Chun-Kuang Hu <[email protected]>
> Signed-off-by: Bo-Chen Chen <[email protected]>

Please add a Fixes tag to this commit.

Thanks,
Angelo.


2022-09-15 16:08:30

by Matthias Brugger

[permalink] [raw]
Subject: Re: [PATCH 3/3] drm/mediatek: dp: Fix warning in mtk_dp_video_mute()



On 15/09/2022 09:50, Bo-Chen Chen wrote:
> Warning:
> ../drivers/gpu/drm/mediatek/mtk_dp.c: In function ‘mtk_dp_video_mute’:
> ../drivers/gpu/drm/mediatek/mtk_dp.c:947:23: warning: format ‘%x’
> expects argument of type ‘unsigned int’, but argument 4 has type ‘long
> unsigned int’ [-Wformat=]
> 947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ../include/linux/dev_printk.h:129:27: note: in definition of macro ‘dev_printk’
> 129 | _dev_printk(level, dev, fmt, ##__VA_ARGS__); \
> | ^~~
> ../include/linux/dev_printk.h:163:31: note: in expansion of macro ‘dev_fmt’
> 163 | dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
> | ^~~~~~~
> ../drivers/gpu/drm/mediatek/mtk_dp.c:947:2: note: in expansion of
> macro ‘dev_dbg’
> 947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
> | ^~~~~~~
> ../drivers/gpu/drm/mediatek/mtk_dp.c:947:36: note: format string is defined here
> 947 | dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
> | ~^
> | |
> | unsigned int
> | %lx
>
> To fix this issue, we use %s to replace 0x%x.
>
> Reported-by: Chun-Kuang Hu <[email protected]>
> Signed-off-by: Bo-Chen Chen <[email protected]>

Reviewed-by: Matthias Brugger <[email protected]>

> ---
> drivers/gpu/drm/mediatek/mtk_dp.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
> index c72c646e25e9..d58e98b2f83a 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dp.c
> @@ -1222,8 +1222,8 @@ static void mtk_dp_video_mute(struct mtk_dp *mtk_dp, bool enable)
> mtk_dp->data->smc_cmd, enable,
> 0, 0, 0, 0, 0, &res);
>
> - dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
> - mtk_dp->data->smc_cmd, enable, res.a0, res.a1);
> + dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: %s, ret: 0x%lx-0x%lx\n",
> + mtk_dp->data->smc_cmd, enable ? "enable" : "disable", res.a0, res.a1);
> }
>
> static void mtk_dp_audio_mute(struct mtk_dp *mtk_dp, bool mute)