* [PATCH] usb: dwc3: simplify dwc3_lsp_write()
@ 2026-08-04 13:49 Dmitry Antipov
2026-08-05 1:17 ` Thinh Nguyen
0 siblings, 1 reply; 2+ messages in thread
From: Dmitry Antipov @ 2026-08-04 13:49 UTC (permalink / raw)
To: Thinh Nguyen; +Cc: Greg Kroah-Hartman, linux-usb, Dmitry Antipov
Simplify 'dwc3_lsp_write()' by using the convenient
'kstrtou32_from_user()'.
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
---
drivers/usb/dwc3/debugfs.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index 65d909e4b785..01ebd73198e0 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -367,14 +367,10 @@ static ssize_t dwc3_lsp_write(struct file *file, const char __user *ubuf,
struct seq_file *s = file->private_data;
struct dwc3 *dwc = s->private;
unsigned long flags;
- char buf[32] = { 0 };
u32 sel;
int ret;
- if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
- ret = kstrtouint(buf, 0, &sel);
+ ret = kstrtou32_from_user(ubuf, count, 0, &sel);
if (ret)
return ret;
--
2.55.0
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] usb: dwc3: simplify dwc3_lsp_write()
2026-08-04 13:49 [PATCH] usb: dwc3: simplify dwc3_lsp_write() Dmitry Antipov
@ 2026-08-05 1:17 ` Thinh Nguyen
0 siblings, 0 replies; 2+ messages in thread
From: Thinh Nguyen @ 2026-08-05 1:17 UTC (permalink / raw)
To: Dmitry Antipov
Cc: Thinh Nguyen, Greg Kroah-Hartman, linux-usb@vger.kernel.org
On Tue, Aug 04, 2026, Dmitry Antipov wrote:
> Simplify 'dwc3_lsp_write()' by using the convenient
> 'kstrtou32_from_user()'.
>
> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
> ---
> drivers/usb/dwc3/debugfs.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
> index 65d909e4b785..01ebd73198e0 100644
> --- a/drivers/usb/dwc3/debugfs.c
> +++ b/drivers/usb/dwc3/debugfs.c
> @@ -367,14 +367,10 @@ static ssize_t dwc3_lsp_write(struct file *file, const char __user *ubuf,
> struct seq_file *s = file->private_data;
> struct dwc3 *dwc = s->private;
> unsigned long flags;
> - char buf[32] = { 0 };
> u32 sel;
> int ret;
>
> - if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
> - return -EFAULT;
> -
> - ret = kstrtouint(buf, 0, &sel);
> + ret = kstrtou32_from_user(ubuf, count, 0, &sel);
> if (ret)
> return ret;
>
> --
> 2.55.0
>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
BR,
Thinh
^ permalink raw reply [flat|nested] 2+ messages in thread
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2026-08-04 13:49 [PATCH] usb: dwc3: simplify dwc3_lsp_write() Dmitry Antipov
2026-08-05 1:17 ` Thinh Nguyen
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