linux-kernel - [PATCH v2 5/6] usb: musb: Introduce musb_start

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Message-Id: <20190614164554.27679-6-matwey@sai.msu.ru>
Date:   Fri, 14 Jun 2019 19:45:53 +0300
From:   "Matwey V. Kornilov" <matwey@....msu.ru>
To:     b-liu@...com, gregkh@...uxfoundation.org, stern@...land.harvard.edu
Cc:     matwey.kornilov@...il.com,
        "Matwey V. Kornilov" <matwey@....msu.ru>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/6] usb: musb: Introduce musb_start_urb()

This function allows us to start arbitrary urb.

Signed-off-by: Matwey V. Kornilov <matwey@....msu.ru>
---
 drivers/usb/musb/musb_host.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 3a202a2a521d..ed99ecd4e63a 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -213,11 +213,10 @@ static struct musb_qh *musb_ep_get_qh(struct musb_hw_ep *ep, int is_in)
  * Context: controller locked, irqs blocked
  */
 static void
-musb_start_next_urb(struct musb *musb, int is_in, struct musb_qh *qh)
+musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh, struct urb *urb)
 {
 	u32			len;
 	void __iomem		*mbase =  musb->mregs;
-	struct urb		*urb = next_urb(qh);
 	void			*buf = urb->transfer_buffer;
 	u32			offset = 0;
 	struct musb_hw_ep	*hw_ep = qh->hw_ep;
@@ -293,6 +292,14 @@ musb_start_next_urb(struct musb *musb, int is_in, struct musb_qh *qh)
 	}
 }
 
+static void
+musb_start_next_urb(struct musb *musb, int is_in, struct musb_qh *qh)
+{
+	struct urb *urb = next_urb(qh);
+
+	musb_start_urb(musb, is_in, qh, urb);
+}
+
 /* Context: caller owns controller lock, IRQs are blocked */
 static void musb_giveback(struct musb *musb, struct urb *urb, int status)
 __releases(musb->lock)
-- 
2.16.4