linux-kernel - linux-next: build failure after merge of the asm-generic tree

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Date:   Fri, 16 Mar 2018 09:13:55 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Aaron Wu <aaron.wu@...log.com>, Bin Liu <b-liu@...com>
Subject: linux-next: build failure after merge of the asm-generic tree

Hi Arnd,

After merging the asm-generic tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

drivers/usb/musb/musb_host.c: In function 'musb_rx_reinit':
drivers/usb/musb/musb_host.c:577:10: error: 'struct musb' has no member named 'double_buffer_not_ok'
  if (musb->double_buffer_not_ok)
          ^~
drivers/usb/musb/musb_host.c: In function 'musb_ep_program':
drivers/usb/musb/musb_host.c:807:12: error: 'struct musb' has no member named 'double_buffer_not_ok'
    if (musb->double_buffer_not_ok) {
            ^~

Caused by commit

  8312c0cad792 ("usb: musb: remove blackfin port")

I have applied the following patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Fri, 16 Mar 2018 08:58:41 +1100
Subject: [PATCH] usb: musb: more blackfin removal

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/usb/musb/musb_gadget.c | 21 +++++++--------------
 drivers/usb/musb/musb_host.c   | 12 +++---------
 2 files changed, 10 insertions(+), 23 deletions(-)

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 58a41b54763b..e564695c6c8d 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -995,15 +995,11 @@ static int musb_gadget_enable(struct usb_ep *ep,
 		/* Set TXMAXP with the FIFO size of the endpoint
 		 * to disable double buffering mode.
 		 */
-		if (musb->double_buffer_not_ok) {
-			musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx);
-		} else {
-			if (can_bulk_split(musb, musb_ep->type))
-				musb_ep->hb_mult = (hw_ep->max_packet_sz_tx /
-							musb_ep->packet_sz) - 1;
-			musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz
-					| (musb_ep->hb_mult << 11));
-		}
+		if (can_bulk_split(musb, musb_ep->type))
+			musb_ep->hb_mult = (hw_ep->max_packet_sz_tx /
+						musb_ep->packet_sz) - 1;
+		musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz
+				| (musb_ep->hb_mult << 11));
 
 		csr = MUSB_TXCSR_MODE | MUSB_TXCSR_CLRDATATOG;
 		if (musb_readw(regs, MUSB_TXCSR)
@@ -1038,11 +1034,8 @@ static int musb_gadget_enable(struct usb_ep *ep,
 		/* Set RXMAXP with the FIFO size of the endpoint
 		 * to disable double buffering mode.
 		 */
-		if (musb->double_buffer_not_ok)
-			musb_writew(regs, MUSB_RXMAXP, hw_ep->max_packet_sz_tx);
-		else
-			musb_writew(regs, MUSB_RXMAXP, musb_ep->packet_sz
-					| (musb_ep->hb_mult << 11));
+		musb_writew(regs, MUSB_RXMAXP, musb_ep->packet_sz
+				| (musb_ep->hb_mult << 11));
 
 		/* force shared fifo to OUT-only mode */
 		if (hw_ep->is_shared_fifo) {
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 45ed32c2cba9..3a8451a15f7f 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -574,11 +574,8 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, u8 epnum)
 	/* Set RXMAXP with the FIFO size of the endpoint
 	 * to disable double buffer mode.
 	 */
-	if (musb->double_buffer_not_ok)
-		musb_writew(ep->regs, MUSB_RXMAXP, ep->max_packet_sz_rx);
-	else
-		musb_writew(ep->regs, MUSB_RXMAXP,
-				qh->maxpacket | ((qh->hb_mult - 1) << 11));
+	musb_writew(ep->regs, MUSB_RXMAXP,
+			qh->maxpacket | ((qh->hb_mult - 1) << 11));
 
 	ep->rx_reinit = 0;
 }
@@ -804,10 +801,7 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
 		/* protocol/endpoint/interval/NAKlimit */
 		if (epnum) {
 			musb_writeb(epio, MUSB_TXTYPE, qh->type_reg);
-			if (musb->double_buffer_not_ok) {
-				musb_writew(epio, MUSB_TXMAXP,
-						hw_ep->max_packet_sz_tx);
-			} else if (can_bulk_split(musb, qh->type)) {
+			if (can_bulk_split(musb, qh->type)) {
 				qh->hb_mult = hw_ep->max_packet_sz_tx
 						/ packet_sz;
 				musb_writew(epio, MUSB_TXMAXP, packet_sz
-- 
2.16.1

-- 
Cheers,
Stephen Rothwell

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