On Fri, Dec 22, 2017 at 03:43:15PM +0800, lpc.li wrote: > Hi, > Ethernet Gadget (with CDC Ethernet support) and RNDIS support, device > is Hisilicon asic and host is PC Windows. Howerver, it has one > warning. In the rndis_add_header of the file f_rndis.c, > dev_kfree_skb_irq replaces dev_kfree_skb. And the waning is > eliminated. I think we can't use dev_kfree_skb in irq disable context, > because spin_lock_irqsave make sure we are always in irq disable > context, use dev_kfree_skb_irq instead of dev_kfree_skb is better than > dev_kfree_skb_any. Can you make up a patch for this please? > > #<--CO------------[ cut here ]------------ > WARNING: CPU: 0 PID: 22 at kernel/softirq.c:146 __local_bh_enable_ip+0x8c/0xb4() > Modules linked in: g_ether usb_f_ecm usb_f_rndis u_ether libcomposite configfs udc_hisi hi_gpio(O) hifb(O) hi3559_tde(PO) hi3559_sys(PO) hi3559_base(PO) hi_osal(O) hi_ipcm(O) > CPU: 0 PID: 22 Comm: kworker/0:1 Tainted: P O 3.18.20 #1 Note, 3.18 is _VERY_ old, are you sure this isn't resolved in a modern and secure kernel release? :) thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
