Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <[email protected]>
---
drivers/usb/atm/usbatm.c | 2 +-
drivers/usb/core/devio.c | 2 +-
drivers/usb/gadget/function/f_fs.c | 2 +-
drivers/usb/gadget/function/f_uvc.c | 2 +-
drivers/usb/gadget/function/u_ether.c | 8 ++++----
drivers/usb/gadget/function/uvc_v4l2.c | 6 +++---
drivers/usb/gadget/udc/omap_udc.c | 2 +-
drivers/usb/misc/usb251xb.c | 6 +++---
drivers/usb/storage/onetouch.c | 2 +-
drivers/usb/typec/tcpm/fusb302.c | 2 +-
drivers/usb/usbip/stub_main.c | 2 +-
11 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 362217189ef3..1cdb8758ae01 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -1026,7 +1026,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id,
/* public fields */
instance->driver = driver;
- strlcpy(instance->driver_name, driver->driver_name,
+ strscpy(instance->driver_name, driver->driver_name,
sizeof(instance->driver_name));
instance->usb_dev = usb_dev;
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index b5b85bf80329..837f3e57f580 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1434,7 +1434,7 @@ static int proc_getdriver(struct usb_dev_state *ps, void __user *arg)
if (!intf || !intf->dev.driver)
ret = -ENODATA;
else {
- strlcpy(gd.driver, intf->dev.driver->name,
+ strscpy(gd.driver, intf->dev.driver->name,
sizeof(gd.driver));
ret = (copy_to_user(arg, &gd, sizeof(gd)) ? -EFAULT : 0);
}
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index e0fa4b186ec6..98dc2291e9a1 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -3700,7 +3700,7 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name)
existing = _ffs_do_find_dev(name);
if (!existing)
- strlcpy(dev->name, name, ARRAY_SIZE(dev->name));
+ strscpy(dev->name, name, ARRAY_SIZE(dev->name));
else if (existing != dev)
ret = -EBUSY;
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index 71669e0e4d00..f4f6cf75930b 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -430,7 +430,7 @@ uvc_register_video(struct uvc_device *uvc)
uvc->vdev.vfl_dir = VFL_DIR_TX;
uvc->vdev.lock = &uvc->video.mutex;
uvc->vdev.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
- strlcpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));
+ strscpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));
video_set_drvdata(&uvc->vdev, uvc);
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index 7887def05dc2..e06022873df1 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -144,10 +144,10 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
{
struct eth_dev *dev = netdev_priv(net);
- strlcpy(p->driver, "g_ether", sizeof(p->driver));
- strlcpy(p->version, UETH__VERSION, sizeof(p->version));
- strlcpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version));
- strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info));
+ strscpy(p->driver, "g_ether", sizeof(p->driver));
+ strscpy(p->version, UETH__VERSION, sizeof(p->version));
+ strscpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version));
+ strscpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info));
}
/* REVISIT can also support:
diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
index fd8f73bb726d..511f106f9843 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.c
+++ b/drivers/usb/gadget/function/uvc_v4l2.c
@@ -67,9 +67,9 @@ uvc_v4l2_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
struct uvc_device *uvc = video_get_drvdata(vdev);
struct usb_composite_dev *cdev = uvc->func.config->cdev;
- strlcpy(cap->driver, "g_uvc", sizeof(cap->driver));
- strlcpy(cap->card, cdev->gadget->name, sizeof(cap->card));
- strlcpy(cap->bus_info, dev_name(&cdev->gadget->dev),
+ strscpy(cap->driver, "g_uvc", sizeof(cap->driver));
+ strscpy(cap->card, cdev->gadget->name, sizeof(cap->card));
+ strscpy(cap->bus_info, dev_name(&cdev->gadget->dev),
sizeof(cap->bus_info));
return 0;
}
diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index 61cabb9de6ae..b0567c63d754 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -2558,7 +2558,7 @@ omap_ep_setup(char *name, u8 addr, u8 type,
/* set up driver data structures */
BUG_ON(strlen(name) >= sizeof ep->name);
- strlcpy(ep->name, name, sizeof ep->name);
+ strscpy(ep->name, name, sizeof(ep->name));
INIT_LIST_HEAD(&ep->queue);
INIT_LIST_HEAD(&ep->iso);
ep->bEndpointAddress = addr;
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 04c4e3fed094..87035ac09834 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -547,7 +547,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
hub->boost_up = USB251XB_DEF_BOOST_UP;
cproperty_char = of_get_property(np, "manufacturer", NULL);
- strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
+ strscpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
sizeof(str));
hub->manufacturer_len = strlen(str) & 0xFF;
memset(hub->manufacturer, 0, USB251XB_STRING_BUFSIZE);
@@ -557,7 +557,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
USB251XB_STRING_BUFSIZE);
cproperty_char = of_get_property(np, "product", NULL);
- strlcpy(str, cproperty_char ? : data->product_str, sizeof(str));
+ strscpy(str, cproperty_char ? : data->product_str, sizeof(str));
hub->product_len = strlen(str) & 0xFF;
memset(hub->product, 0, USB251XB_STRING_BUFSIZE);
len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
@@ -566,7 +566,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
USB251XB_STRING_BUFSIZE);
cproperty_char = of_get_property(np, "serial", NULL);
- strlcpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
+ strscpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
sizeof(str));
hub->serial_len = strlen(str) & 0xFF;
memset(hub->serial, 0, USB251XB_STRING_BUFSIZE);
diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
index 1db2eefeea22..01f3c2779ccf 100644
--- a/drivers/usb/storage/onetouch.c
+++ b/drivers/usb/storage/onetouch.c
@@ -201,7 +201,7 @@ static int onetouch_connect_input(struct us_data *ss)
onetouch->dev = input_dev;
if (udev->manufacturer)
- strlcpy(onetouch->name, udev->manufacturer,
+ strscpy(onetouch->name, udev->manufacturer,
sizeof(onetouch->name));
if (udev->product) {
if (udev->manufacturer)
diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index 96c55eaf3f80..ab89c014606e 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -151,7 +151,7 @@ static void _fusb302_log(struct fusb302_chip *chip, const char *fmt,
if (fusb302_log_full(chip)) {
chip->logbuffer_head = max(chip->logbuffer_head - 1, 0);
- strlcpy(tmpbuffer, "overflow", sizeof(tmpbuffer));
+ strscpy(tmpbuffer, "overflow", sizeof(tmpbuffer));
}
if (chip->logbuffer_head < 0 ||
diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
index 77a5b3f8736a..e8c3131a8543 100644
--- a/drivers/usb/usbip/stub_main.c
+++ b/drivers/usb/usbip/stub_main.c
@@ -100,7 +100,7 @@ static int add_match_busid(char *busid)
for (i = 0; i < MAX_BUSID; i++) {
spin_lock(&busid_table[i].busid_lock);
if (!busid_table[i].name[0]) {
- strlcpy(busid_table[i].name, busid, BUSID_SIZE);
+ strscpy(busid_table[i].name, busid, BUSID_SIZE);
if ((busid_table[i].status != STUB_BUSID_ALLOC) &&
(busid_table[i].status != STUB_BUSID_REMOV))
busid_table[i].status = STUB_BUSID_ADDED;
--
2.35.1
On 8/18/22 3:01 PM, Wolfram Sang wrote:
> Follow the advice of the below link and prefer 'strscpy' in this
> subsystem. Conversion is 1:1 because the return value is not used.
> Generated by a coccinelle script.
>
Please elaborate and summarize why this change makses sense in the
commit log? It will be easier for reviewers - saves time checking
the link.
> Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
> Signed-off-by: Wolfram Sang <[email protected]>
> ---
> drivers/usb/atm/usbatm.c | 2 +-
> drivers/usb/core/devio.c | 2 +-
> drivers/usb/gadget/function/f_fs.c | 2 +-
> drivers/usb/gadget/function/f_uvc.c | 2 +-
> drivers/usb/gadget/function/u_ether.c | 8 ++++----
> drivers/usb/gadget/function/uvc_v4l2.c | 6 +++---
> drivers/usb/gadget/udc/omap_udc.c | 2 +-
> drivers/usb/misc/usb251xb.c | 6 +++---
> drivers/usb/storage/onetouch.c | 2 +-
> drivers/usb/typec/tcpm/fusb302.c | 2 +-
> drivers/usb/usbip/stub_main.c | 2 +-
I don't have any problems with the change itself. I would ike to
see the commit log clealrly state why this change is good. With
that for usbip change:
Acked-by: Shuah Khan <[email protected]>
thanks,
-- Shuah
Hi Wolfram,
Thank you for the patch.
On Thu, Aug 18, 2022 at 11:01:15PM +0200, Wolfram Sang wrote:
> Follow the advice of the below link and prefer 'strscpy' in this
> subsystem. Conversion is 1:1 because the return value is not used.
> Generated by a coccinelle script.
>
> Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
> Signed-off-by: Wolfram Sang <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
> ---
> drivers/usb/atm/usbatm.c | 2 +-
> drivers/usb/core/devio.c | 2 +-
> drivers/usb/gadget/function/f_fs.c | 2 +-
> drivers/usb/gadget/function/f_uvc.c | 2 +-
> drivers/usb/gadget/function/u_ether.c | 8 ++++----
> drivers/usb/gadget/function/uvc_v4l2.c | 6 +++---
> drivers/usb/gadget/udc/omap_udc.c | 2 +-
> drivers/usb/misc/usb251xb.c | 6 +++---
> drivers/usb/storage/onetouch.c | 2 +-
> drivers/usb/typec/tcpm/fusb302.c | 2 +-
> drivers/usb/usbip/stub_main.c | 2 +-
> 11 files changed, 18 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
> index 362217189ef3..1cdb8758ae01 100644
> --- a/drivers/usb/atm/usbatm.c
> +++ b/drivers/usb/atm/usbatm.c
> @@ -1026,7 +1026,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id,
> /* public fields */
>
> instance->driver = driver;
> - strlcpy(instance->driver_name, driver->driver_name,
> + strscpy(instance->driver_name, driver->driver_name,
> sizeof(instance->driver_name));
>
> instance->usb_dev = usb_dev;
> diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
> index b5b85bf80329..837f3e57f580 100644
> --- a/drivers/usb/core/devio.c
> +++ b/drivers/usb/core/devio.c
> @@ -1434,7 +1434,7 @@ static int proc_getdriver(struct usb_dev_state *ps, void __user *arg)
> if (!intf || !intf->dev.driver)
> ret = -ENODATA;
> else {
> - strlcpy(gd.driver, intf->dev.driver->name,
> + strscpy(gd.driver, intf->dev.driver->name,
> sizeof(gd.driver));
> ret = (copy_to_user(arg, &gd, sizeof(gd)) ? -EFAULT : 0);
> }
> diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
> index e0fa4b186ec6..98dc2291e9a1 100644
> --- a/drivers/usb/gadget/function/f_fs.c
> +++ b/drivers/usb/gadget/function/f_fs.c
> @@ -3700,7 +3700,7 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name)
>
> existing = _ffs_do_find_dev(name);
> if (!existing)
> - strlcpy(dev->name, name, ARRAY_SIZE(dev->name));
> + strscpy(dev->name, name, ARRAY_SIZE(dev->name));
> else if (existing != dev)
> ret = -EBUSY;
>
> diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
> index 71669e0e4d00..f4f6cf75930b 100644
> --- a/drivers/usb/gadget/function/f_uvc.c
> +++ b/drivers/usb/gadget/function/f_uvc.c
> @@ -430,7 +430,7 @@ uvc_register_video(struct uvc_device *uvc)
> uvc->vdev.vfl_dir = VFL_DIR_TX;
> uvc->vdev.lock = &uvc->video.mutex;
> uvc->vdev.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
> - strlcpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));
> + strscpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));
>
> video_set_drvdata(&uvc->vdev, uvc);
>
> diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
> index 7887def05dc2..e06022873df1 100644
> --- a/drivers/usb/gadget/function/u_ether.c
> +++ b/drivers/usb/gadget/function/u_ether.c
> @@ -144,10 +144,10 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
> {
> struct eth_dev *dev = netdev_priv(net);
>
> - strlcpy(p->driver, "g_ether", sizeof(p->driver));
> - strlcpy(p->version, UETH__VERSION, sizeof(p->version));
> - strlcpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version));
> - strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info));
> + strscpy(p->driver, "g_ether", sizeof(p->driver));
> + strscpy(p->version, UETH__VERSION, sizeof(p->version));
> + strscpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version));
> + strscpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info));
> }
>
> /* REVISIT can also support:
> diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
> index fd8f73bb726d..511f106f9843 100644
> --- a/drivers/usb/gadget/function/uvc_v4l2.c
> +++ b/drivers/usb/gadget/function/uvc_v4l2.c
> @@ -67,9 +67,9 @@ uvc_v4l2_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
> struct uvc_device *uvc = video_get_drvdata(vdev);
> struct usb_composite_dev *cdev = uvc->func.config->cdev;
>
> - strlcpy(cap->driver, "g_uvc", sizeof(cap->driver));
> - strlcpy(cap->card, cdev->gadget->name, sizeof(cap->card));
> - strlcpy(cap->bus_info, dev_name(&cdev->gadget->dev),
> + strscpy(cap->driver, "g_uvc", sizeof(cap->driver));
> + strscpy(cap->card, cdev->gadget->name, sizeof(cap->card));
> + strscpy(cap->bus_info, dev_name(&cdev->gadget->dev),
> sizeof(cap->bus_info));
> return 0;
> }
> diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
> index 61cabb9de6ae..b0567c63d754 100644
> --- a/drivers/usb/gadget/udc/omap_udc.c
> +++ b/drivers/usb/gadget/udc/omap_udc.c
> @@ -2558,7 +2558,7 @@ omap_ep_setup(char *name, u8 addr, u8 type,
>
> /* set up driver data structures */
> BUG_ON(strlen(name) >= sizeof ep->name);
> - strlcpy(ep->name, name, sizeof ep->name);
> + strscpy(ep->name, name, sizeof(ep->name));
> INIT_LIST_HEAD(&ep->queue);
> INIT_LIST_HEAD(&ep->iso);
> ep->bEndpointAddress = addr;
> diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
> index 04c4e3fed094..87035ac09834 100644
> --- a/drivers/usb/misc/usb251xb.c
> +++ b/drivers/usb/misc/usb251xb.c
> @@ -547,7 +547,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
> hub->boost_up = USB251XB_DEF_BOOST_UP;
>
> cproperty_char = of_get_property(np, "manufacturer", NULL);
> - strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
> + strscpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
> sizeof(str));
> hub->manufacturer_len = strlen(str) & 0xFF;
> memset(hub->manufacturer, 0, USB251XB_STRING_BUFSIZE);
> @@ -557,7 +557,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
> USB251XB_STRING_BUFSIZE);
>
> cproperty_char = of_get_property(np, "product", NULL);
> - strlcpy(str, cproperty_char ? : data->product_str, sizeof(str));
> + strscpy(str, cproperty_char ? : data->product_str, sizeof(str));
> hub->product_len = strlen(str) & 0xFF;
> memset(hub->product, 0, USB251XB_STRING_BUFSIZE);
> len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
> @@ -566,7 +566,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
> USB251XB_STRING_BUFSIZE);
>
> cproperty_char = of_get_property(np, "serial", NULL);
> - strlcpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
> + strscpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
> sizeof(str));
> hub->serial_len = strlen(str) & 0xFF;
> memset(hub->serial, 0, USB251XB_STRING_BUFSIZE);
> diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
> index 1db2eefeea22..01f3c2779ccf 100644
> --- a/drivers/usb/storage/onetouch.c
> +++ b/drivers/usb/storage/onetouch.c
> @@ -201,7 +201,7 @@ static int onetouch_connect_input(struct us_data *ss)
> onetouch->dev = input_dev;
>
> if (udev->manufacturer)
> - strlcpy(onetouch->name, udev->manufacturer,
> + strscpy(onetouch->name, udev->manufacturer,
> sizeof(onetouch->name));
> if (udev->product) {
> if (udev->manufacturer)
> diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
> index 96c55eaf3f80..ab89c014606e 100644
> --- a/drivers/usb/typec/tcpm/fusb302.c
> +++ b/drivers/usb/typec/tcpm/fusb302.c
> @@ -151,7 +151,7 @@ static void _fusb302_log(struct fusb302_chip *chip, const char *fmt,
>
> if (fusb302_log_full(chip)) {
> chip->logbuffer_head = max(chip->logbuffer_head - 1, 0);
> - strlcpy(tmpbuffer, "overflow", sizeof(tmpbuffer));
> + strscpy(tmpbuffer, "overflow", sizeof(tmpbuffer));
> }
>
> if (chip->logbuffer_head < 0 ||
> diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
> index 77a5b3f8736a..e8c3131a8543 100644
> --- a/drivers/usb/usbip/stub_main.c
> +++ b/drivers/usb/usbip/stub_main.c
> @@ -100,7 +100,7 @@ static int add_match_busid(char *busid)
> for (i = 0; i < MAX_BUSID; i++) {
> spin_lock(&busid_table[i].busid_lock);
> if (!busid_table[i].name[0]) {
> - strlcpy(busid_table[i].name, busid, BUSID_SIZE);
> + strscpy(busid_table[i].name, busid, BUSID_SIZE);
> if ((busid_table[i].status != STUB_BUSID_ALLOC) &&
> (busid_table[i].status != STUB_BUSID_REMOV))
> busid_table[i].status = STUB_BUSID_ADDED;
--
Regards,
Laurent Pinchart
Hi Wolfram,
On Thu, Aug 18, 2022 at 11:01:15PM +0200, Wolfram Sang wrote:
> Follow the advice of the below link and prefer 'strscpy' in this
> subsystem. Conversion is 1:1 because the return value is not used.
> Generated by a coccinelle script.
>
> Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
> Signed-off-by: Wolfram Sang <[email protected]>
> ---
> drivers/usb/atm/usbatm.c | 2 +-
> drivers/usb/core/devio.c | 2 +-
> drivers/usb/gadget/function/f_fs.c | 2 +-
> drivers/usb/gadget/function/f_uvc.c | 2 +-
> drivers/usb/gadget/function/u_ether.c | 8 ++++----
> drivers/usb/gadget/function/uvc_v4l2.c | 6 +++---
> drivers/usb/gadget/udc/omap_udc.c | 2 +-
> drivers/usb/misc/usb251xb.c | 6 +++---
Thanks for taking usb251xb into account.
Please feel free to add
Reviewed-by: Richard Leitner <[email protected]>
> drivers/usb/storage/onetouch.c | 2 +-
> drivers/usb/typec/tcpm/fusb302.c | 2 +-
> drivers/usb/usbip/stub_main.c | 2 +-
> 11 files changed, 18 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
> index 362217189ef3..1cdb8758ae01 100644
> --- a/drivers/usb/atm/usbatm.c
> +++ b/drivers/usb/atm/usbatm.c
> @@ -1026,7 +1026,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id,
> /* public fields */
>
> instance->driver = driver;
> - strlcpy(instance->driver_name, driver->driver_name,
> + strscpy(instance->driver_name, driver->driver_name,
> sizeof(instance->driver_name));
>
> instance->usb_dev = usb_dev;
> diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
> index b5b85bf80329..837f3e57f580 100644
> --- a/drivers/usb/core/devio.c
> +++ b/drivers/usb/core/devio.c
> @@ -1434,7 +1434,7 @@ static int proc_getdriver(struct usb_dev_state *ps, void __user *arg)
> if (!intf || !intf->dev.driver)
> ret = -ENODATA;
> else {
> - strlcpy(gd.driver, intf->dev.driver->name,
> + strscpy(gd.driver, intf->dev.driver->name,
> sizeof(gd.driver));
> ret = (copy_to_user(arg, &gd, sizeof(gd)) ? -EFAULT : 0);
> }
> diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
> index e0fa4b186ec6..98dc2291e9a1 100644
> --- a/drivers/usb/gadget/function/f_fs.c
> +++ b/drivers/usb/gadget/function/f_fs.c
> @@ -3700,7 +3700,7 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name)
>
> existing = _ffs_do_find_dev(name);
> if (!existing)
> - strlcpy(dev->name, name, ARRAY_SIZE(dev->name));
> + strscpy(dev->name, name, ARRAY_SIZE(dev->name));
> else if (existing != dev)
> ret = -EBUSY;
>
> diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
> index 71669e0e4d00..f4f6cf75930b 100644
> --- a/drivers/usb/gadget/function/f_uvc.c
> +++ b/drivers/usb/gadget/function/f_uvc.c
> @@ -430,7 +430,7 @@ uvc_register_video(struct uvc_device *uvc)
> uvc->vdev.vfl_dir = VFL_DIR_TX;
> uvc->vdev.lock = &uvc->video.mutex;
> uvc->vdev.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
> - strlcpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));
> + strscpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));
>
> video_set_drvdata(&uvc->vdev, uvc);
>
> diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
> index 7887def05dc2..e06022873df1 100644
> --- a/drivers/usb/gadget/function/u_ether.c
> +++ b/drivers/usb/gadget/function/u_ether.c
> @@ -144,10 +144,10 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
> {
> struct eth_dev *dev = netdev_priv(net);
>
> - strlcpy(p->driver, "g_ether", sizeof(p->driver));
> - strlcpy(p->version, UETH__VERSION, sizeof(p->version));
> - strlcpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version));
> - strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info));
> + strscpy(p->driver, "g_ether", sizeof(p->driver));
> + strscpy(p->version, UETH__VERSION, sizeof(p->version));
> + strscpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version));
> + strscpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info));
> }
>
> /* REVISIT can also support:
> diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
> index fd8f73bb726d..511f106f9843 100644
> --- a/drivers/usb/gadget/function/uvc_v4l2.c
> +++ b/drivers/usb/gadget/function/uvc_v4l2.c
> @@ -67,9 +67,9 @@ uvc_v4l2_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
> struct uvc_device *uvc = video_get_drvdata(vdev);
> struct usb_composite_dev *cdev = uvc->func.config->cdev;
>
> - strlcpy(cap->driver, "g_uvc", sizeof(cap->driver));
> - strlcpy(cap->card, cdev->gadget->name, sizeof(cap->card));
> - strlcpy(cap->bus_info, dev_name(&cdev->gadget->dev),
> + strscpy(cap->driver, "g_uvc", sizeof(cap->driver));
> + strscpy(cap->card, cdev->gadget->name, sizeof(cap->card));
> + strscpy(cap->bus_info, dev_name(&cdev->gadget->dev),
> sizeof(cap->bus_info));
> return 0;
> }
> diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
> index 61cabb9de6ae..b0567c63d754 100644
> --- a/drivers/usb/gadget/udc/omap_udc.c
> +++ b/drivers/usb/gadget/udc/omap_udc.c
> @@ -2558,7 +2558,7 @@ omap_ep_setup(char *name, u8 addr, u8 type,
>
> /* set up driver data structures */
> BUG_ON(strlen(name) >= sizeof ep->name);
> - strlcpy(ep->name, name, sizeof ep->name);
> + strscpy(ep->name, name, sizeof(ep->name));
> INIT_LIST_HEAD(&ep->queue);
> INIT_LIST_HEAD(&ep->iso);
> ep->bEndpointAddress = addr;
> diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
> index 04c4e3fed094..87035ac09834 100644
> --- a/drivers/usb/misc/usb251xb.c
> +++ b/drivers/usb/misc/usb251xb.c
> @@ -547,7 +547,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
> hub->boost_up = USB251XB_DEF_BOOST_UP;
>
> cproperty_char = of_get_property(np, "manufacturer", NULL);
> - strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
> + strscpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
> sizeof(str));
> hub->manufacturer_len = strlen(str) & 0xFF;
> memset(hub->manufacturer, 0, USB251XB_STRING_BUFSIZE);
> @@ -557,7 +557,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
> USB251XB_STRING_BUFSIZE);
>
> cproperty_char = of_get_property(np, "product", NULL);
> - strlcpy(str, cproperty_char ? : data->product_str, sizeof(str));
> + strscpy(str, cproperty_char ? : data->product_str, sizeof(str));
> hub->product_len = strlen(str) & 0xFF;
> memset(hub->product, 0, USB251XB_STRING_BUFSIZE);
> len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
> @@ -566,7 +566,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
> USB251XB_STRING_BUFSIZE);
>
> cproperty_char = of_get_property(np, "serial", NULL);
> - strlcpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
> + strscpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
> sizeof(str));
> hub->serial_len = strlen(str) & 0xFF;
> memset(hub->serial, 0, USB251XB_STRING_BUFSIZE);
> diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
> index 1db2eefeea22..01f3c2779ccf 100644
> --- a/drivers/usb/storage/onetouch.c
> +++ b/drivers/usb/storage/onetouch.c
> @@ -201,7 +201,7 @@ static int onetouch_connect_input(struct us_data *ss)
> onetouch->dev = input_dev;
>
> if (udev->manufacturer)
> - strlcpy(onetouch->name, udev->manufacturer,
> + strscpy(onetouch->name, udev->manufacturer,
> sizeof(onetouch->name));
> if (udev->product) {
> if (udev->manufacturer)
> diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
> index 96c55eaf3f80..ab89c014606e 100644
> --- a/drivers/usb/typec/tcpm/fusb302.c
> +++ b/drivers/usb/typec/tcpm/fusb302.c
> @@ -151,7 +151,7 @@ static void _fusb302_log(struct fusb302_chip *chip, const char *fmt,
>
> if (fusb302_log_full(chip)) {
> chip->logbuffer_head = max(chip->logbuffer_head - 1, 0);
> - strlcpy(tmpbuffer, "overflow", sizeof(tmpbuffer));
> + strscpy(tmpbuffer, "overflow", sizeof(tmpbuffer));
> }
>
> if (chip->logbuffer_head < 0 ||
> diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
> index 77a5b3f8736a..e8c3131a8543 100644
> --- a/drivers/usb/usbip/stub_main.c
> +++ b/drivers/usb/usbip/stub_main.c
> @@ -100,7 +100,7 @@ static int add_match_busid(char *busid)
> for (i = 0; i < MAX_BUSID; i++) {
> spin_lock(&busid_table[i].busid_lock);
> if (!busid_table[i].name[0]) {
> - strlcpy(busid_table[i].name, busid, BUSID_SIZE);
> + strscpy(busid_table[i].name, busid, BUSID_SIZE);
> if ((busid_table[i].status != STUB_BUSID_ALLOC) &&
> (busid_table[i].status != STUB_BUSID_REMOV))
> busid_table[i].status = STUB_BUSID_ADDED;
> --
> 2.35.1
>
Hi Shuah,
> Please elaborate and summarize why this change makses sense in the
> commit log? It will be easier for reviewers - saves time checking
> the link.
Okay. Will do this to all follow-ups / resends of this series.
> Acked-by: Shuah Khan <[email protected]>
Thanks,
Wolfram
On Thu, Aug 18, 2022 at 11:01:15PM +0200, Wolfram Sang wrote:
> Follow the advice of the below link and prefer 'strscpy' in this
> subsystem. Conversion is 1:1 because the return value is not used.
> Generated by a coccinelle script.
>
> Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
> Signed-off-by: Wolfram Sang <[email protected]>
You might want to fix up your email server, b4 doesn't think it is
sending out valid emails:
Grabbing thread from lore.kernel.org/all/20220818210116.7517-1-wsa%2Brenesas%40sang-engineering.com/t.mbox.gz
Analyzing 5 messages in the thread
Checking attestation on all messages, may take a moment...
---
✗ [PATCH] usb: move from strlcpy with unused retval to strscpy
+ Reviewed-by: Richard Leitner <[email protected]> (✓ DKIM/skidata.com)
+ Reviewed-by: Laurent Pinchart <[email protected]> (✓ DKIM/ideasonboard.com)
+ Acked-by: Shuah Khan <[email protected]> (✓ DKIM/linuxfoundation.org)
---
✗ BADSIG: DKIM/sang-engineering.com
---
Total patches: 1
> ✗ BADSIG: DKIM/sang-engineering.com
Strange. When I save the message into a file and check locally, it seems
OK. I also never received a similar report from other b4 users.
===
$ cat message | dkimverify
signature ok