On Wed, 22. Jan 02:42, Nikita Zhandarovich wrote: > @@ -880,6 +888,20 @@ static int rtl8150_probe(struct usb_interface *intf, > return -ENOMEM; > } > > + /* Verify that all required endpoints are present */ > + static const u8 bulk_ep_addr[] = { > + RTL8150_USB_EP_BULK_IN | USB_DIR_IN, > + RTL8150_USB_EP_BULK_OUT | USB_DIR_OUT, > + 0}; > + static const u8 int_ep_addr[] = { > + RTL8150_USB_EP_INT_IN | USB_DIR_IN, > + 0}; nit: It's better to avoid using mixed declarations and code, especially if the patch is considered to be a material for stable branches. When building old kernels which lack b5ec6fd286df ("kbuild: Drop -Wdeclaration-after-statement"), the following unnecessary warning occurs: drivers/net/usb/rtl8150.c: In function ‘rtl8150_probe’: drivers/net/usb/rtl8150.c:892:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 892 | static const u8 bulk_ep_addr[] = { | ^~~~~~ > + if (!usb_check_bulk_endpoints(intf, bulk_ep_addr) || > + !usb_check_int_endpoints(intf, int_ep_addr)) { > + dev_err(&intf->dev, "couldn't find required endpoints\n"); > + goto out; > + } > + > tasklet_setup(&dev->tl, rx_fixup); > spin_lock_init(&dev->rx_pool_lock); >