Function xhci_readl() is used to read 32bit xHC registers residing in MMIO address space. It takes as first argument a pointer to the xhci_hcd although it does not use it because internally it simply calls readl. This creates an illusion that xhci_readl() is an xhci specific function that has to be called in a context where a pointer to xhci_hcd is available. This patch replaces calls to xhci_readl() with calls to readl() in xhci-ring.c. This is done so that xhci_readl() can be removed completely and code can become more straight-forward. Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx> --- drivers/usb/host/xhci-ring.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index faff6fc..5c36c5b 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -287,7 +287,7 @@ void xhci_ring_cmd_db(struct xhci_hcd *xhci) xhci_dbg(xhci, "// Ding dong!\n"); xhci_writel(xhci, DB_VALUE_HOST, &xhci->dba->doorbell[0]); /* Flush PCI posted writes */ - xhci_readl(xhci, &xhci->dba->doorbell[0]); + readl(&xhci->dba->doorbell[0]); } static int xhci_abort_cmd_ring(struct xhci_hcd *xhci) @@ -1718,7 +1718,7 @@ static void handle_port_status(struct xhci_hcd *xhci, faked_port_index = find_faked_portnum_from_hw_portnum(hcd, xhci, port_id); - temp = xhci_readl(xhci, port_array[faked_port_index]); + temp = readl(port_array[faked_port_index]); if (hcd->state == HC_STATE_SUSPENDED) { xhci_dbg(xhci, "resume root hub\n"); usb_hcd_resume_root_hub(hcd); @@ -1727,7 +1727,7 @@ static void handle_port_status(struct xhci_hcd *xhci, if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_RESUME) { xhci_dbg(xhci, "port resume event for port %d\n", port_id); - temp1 = xhci_readl(xhci, &xhci->op_regs->command); + temp1 = readl(&xhci->op_regs->command); if (!(temp1 & CMD_RUN)) { xhci_warn(xhci, "xHC is not running.\n"); goto cleanup; @@ -2803,7 +2803,7 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd) spin_lock(&xhci->lock); /* Check if the xHC generated the interrupt, or the irq is shared */ - status = xhci_readl(xhci, &xhci->op_regs->status); + status = readl(&xhci->op_regs->status); if (status == 0xffffffff) goto hw_died; @@ -2832,7 +2832,7 @@ hw_died: if (hcd->irq) { u32 irq_pending; /* Acknowledge the PCI interrupt */ - irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); + irq_pending = readl(&xhci->ir_set->irq_pending); irq_pending |= IMAN_IP; xhci_writel(xhci, irq_pending, &xhci->ir_set->irq_pending); } @@ -3907,7 +3907,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, if (ret) return ret; - start_frame = xhci_readl(xhci, &xhci->run_regs->microframe_index); + start_frame = readl(&xhci->run_regs->microframe_index); start_frame &= 0x3fff; urb->start_frame = start_frame; -- 1.8.3.4 -- 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