Hi Rafał, [auto build test WARNING on usb/usb-next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Hauke-Mehrtens/usb-bcma-add-USB-3-0-support/20151019-015012 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> drivers/usb/host/xhci.c:129:52: sparse: Using plain integer as NULL pointer vim +129 drivers/usb/host/xhci.c 113 ret = xhci_handshake(&xhci->op_regs->status, 114 STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC); 115 if (!ret) { 116 xhci->xhc_state |= XHCI_STATE_HALTED; 117 xhci->cmd_ring_state = CMD_RING_STATE_STOPPED; 118 } else 119 xhci_warn(xhci, "Host not halted after %u microseconds.\n", 120 XHCI_MAX_HALT_USEC); 121 return ret; 122 } 123 124 static int xhci_fake_doorbell(struct xhci_hcd *xhci, int slot_id) 125 { 126 u32 temp; 127 128 /* alloc a virt device for slot */ > 129 if (!xhci_alloc_virt_device(xhci, slot_id, 0, GFP_NOIO)) { 130 xhci_warn(xhci, "Could not allocate xHCI USB device data structures\n"); 131 return -ENOMEM; 132 } 133 134 /* ring fake doorbell for slot_id ep 0 */ 135 xhci_ring_ep_doorbell(xhci, slot_id, 0, 0); 136 usleep_range(1000, 1500); 137 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation -- 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
