From 696c8b1282205caa5206264449f80ef756f14ef7 Mon Sep 17 00:00:00 2001 From: Felipe Balbi <felipe.balbi@linux.intel.com> Date: Wed, 30 Mar 2016 09:37:03 +0300 Subject: usb: dwc3: drop ev_buffs array we will be using a single event buffer and that renders ev_buffs array unnecessary. Let's remove it in favor of a single pointer to a single event buffer. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> --- drivers/usb/dwc3/core.c | 13 ++++--------- drivers/usb/dwc3/core.h | 2 +- drivers/usb/dwc3/gadget.c | 4 ++-- 3 files changed, 7 insertions(+), 12 deletions(-) --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -204,7 +204,7 @@ static void dwc3_free_event_buffers(stru { struct dwc3_event_buffer *evt; - evt = dwc->ev_buffs[0]; + evt = dwc->ev_buf; if (evt) dwc3_free_one_event_buffer(dwc, evt); } @@ -221,17 +221,12 @@ static int dwc3_alloc_event_buffers(stru { struct dwc3_event_buffer *evt; - dwc->ev_buffs = devm_kzalloc(dwc->dev, sizeof(*dwc->ev_buffs), - GFP_KERNEL); - if (!dwc->ev_buffs) - return -ENOMEM; - evt = dwc3_alloc_one_event_buffer(dwc, length); if (IS_ERR(evt)) { dev_err(dwc->dev, "can't allocate event buffer\n"); return PTR_ERR(evt); } - dwc->ev_buffs[0] = evt; + dwc->ev_buf = evt; return 0; } @@ -246,7 +241,7 @@ static int dwc3_event_buffers_setup(stru { struct dwc3_event_buffer *evt; - evt = dwc->ev_buffs[0]; + evt = dwc->ev_buf; dwc3_trace(trace_dwc3_core, "Event buf %p dma %08llx length %d\n", evt->buf, (unsigned long long) evt->dma, @@ -269,7 +264,7 @@ static void dwc3_event_buffers_cleanup(s { struct dwc3_event_buffer *evt; - evt = dwc->ev_buffs[0]; + evt = dwc->ev_buf; evt->lpos = 0; --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -748,7 +748,7 @@ struct dwc3 { struct platform_device *xhci; struct resource xhci_resources[DWC3_XHCI_RESOURCES_NUM]; - struct dwc3_event_buffer **ev_buffs; + struct dwc3_event_buffer *ev_buf; struct dwc3_ep *eps[DWC3_ENDPOINTS_NUM]; struct usb_gadget gadget; --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2563,7 +2563,7 @@ static irqreturn_t dwc3_process_event_bu int left; u32 reg; - evt = dwc->ev_buffs[0]; + evt = dwc->ev_buf; left = evt->count; if (!(evt->flags & DWC3_EVENT_PENDING)) @@ -2622,7 +2622,7 @@ static irqreturn_t dwc3_check_event_buf( u32 count; u32 reg; - evt = dwc->ev_buffs[0]; + evt = dwc->ev_buf; count = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(0)); count &= DWC3_GEVNTCOUNT_MASK;