2021-02-04 23:24:03

by Jiapeng Chong

Subject: [PATCH] drm/komeda: convert sysfs sprintf/snprintf family to sysfs_emit

Fix the following coccicheck warning:

./drivers/gpu/drm/arm/display/komeda/komeda_dev.c:97:8-16: WARNING: use
scnprintf or sprintf.

./drivers/gpu/drm/arm/display/komeda/komeda_dev.c:88:8-16: WARNING: use
scnprintf or sprintf.

./drivers/gpu/drm/arm/display/komeda/komeda_dev.c:65:8-16: WARNING: use
scnprintf or sprintf.

Reported-by: Abaci Robot<[email protected]>
Signed-off-by: Jiapeng Chong <[email protected]>
---
drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
index ca891ae..cc7664c 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
@@ -62,7 +62,7 @@ static void komeda_debugfs_init(struct komeda_dev *mdev)
{
struct komeda_dev *mdev = dev_to_mdev(dev);

- return snprintf(buf, PAGE_SIZE, "0x%08x\n", mdev->chip.core_id);
+ return sysfs_emit(buf, "0x%08x\n", mdev->chip.core_id);
}
static DEVICE_ATTR_RO(core_id);

@@ -85,7 +85,7 @@ static void komeda_debugfs_init(struct komeda_dev *mdev)
if (pipe->layers[i]->layer_type == KOMEDA_FMT_RICH_LAYER)
config_id.n_richs++;
}
- return snprintf(buf, PAGE_SIZE, "0x%08x\n", config_id.value);
+ return sysfs_emit(buf, "0x%08x\n", config_id.value);
}
static DEVICE_ATTR_RO(config_id);

@@ -94,7 +94,7 @@ static void komeda_debugfs_init(struct komeda_dev *mdev)
{
struct komeda_dev *mdev = dev_to_mdev(dev);

- return snprintf(buf, PAGE_SIZE, "%lu\n", clk_get_rate(mdev->aclk));
+ return sysfs_emit(buf, "%lu\n", clk_get_rate(mdev->aclk));
}
static DEVICE_ATTR_RO(aclk_hz);

--
1.8.3.1

2021-02-05 08:58:40

by James Qian Wang

Subject: Re: [PATCH] drm/komeda: convert sysfs sprintf/snprintf family to sysfs_emit

On Thu, Feb 04, 2021 at 02:38:28PM +0800, Jiapeng Chong wrote:
> Fix the following coccicheck warning:
>
> ./drivers/gpu/drm/arm/display/komeda/komeda_dev.c:97:8-16: WARNING: use
> scnprintf or sprintf.
>
> ./drivers/gpu/drm/arm/display/komeda/komeda_dev.c:88:8-16: WARNING: use
> scnprintf or sprintf.
>
> ./drivers/gpu/drm/arm/display/komeda/komeda_dev.c:65:8-16: WARNING: use
> scnprintf or sprintf.
>
> Reported-by: Abaci Robot<[email protected]>
> Signed-off-by: Jiapeng Chong <[email protected]>
> ---

Looks good to me, thank you for the patch.

Reviewed-by: James Qian Wang <[email protected]>

> drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
> index ca891ae..cc7664c 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
> @@ -62,7 +62,7 @@ static void komeda_debugfs_init(struct komeda_dev *mdev)
> {
> struct komeda_dev *mdev = dev_to_mdev(dev);
>
> - return snprintf(buf, PAGE_SIZE, "0x%08x\n", mdev->chip.core_id);
> + return sysfs_emit(buf, "0x%08x\n", mdev->chip.core_id);
> }
> static DEVICE_ATTR_RO(core_id);
>
> @@ -85,7 +85,7 @@ static void komeda_debugfs_init(struct komeda_dev *mdev)
> if (pipe->layers[i]->layer_type == KOMEDA_FMT_RICH_LAYER)
> config_id.n_richs++;
> }
> - return snprintf(buf, PAGE_SIZE, "0x%08x\n", config_id.value);
> + return sysfs_emit(buf, "0x%08x\n", config_id.value);
> }
> static DEVICE_ATTR_RO(config_id);
>
> @@ -94,7 +94,7 @@ static void komeda_debugfs_init(struct komeda_dev *mdev)
> {
> struct komeda_dev *mdev = dev_to_mdev(dev);
>
> - return snprintf(buf, PAGE_SIZE, "%lu\n", clk_get_rate(mdev->aclk));
> + return sysfs_emit(buf, "%lu\n", clk_get_rate(mdev->aclk));
> }
> static DEVICE_ATTR_RO(aclk_hz);
>
> --
> 1.8.3.1