Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (22 commits)
  WUSB: correct format of wusb_chid sysfs file
  WUSB: fix oops when completing URBs for disconnected devices
  WUSB: disconnect all devices when stopping a WUSB HCD
  USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep()
  USB: whci-hcd: provide a endpoint_reset method
  USB: add reset endpoint operations
  USB device codes for Motorola phone.
  usb-storage: fix mistake in Makefile
  USB: usb-serial ch341: support for DTR/RTS/CTS
  Revert USB: usb-serial ch341: support for DTR/RTS/CTS
  USB: musb: fix possible panic while resuming
  USB: musb: fix isochronous TXDMA (take 2)
  USB: musb: sanitize clearing TXCSR DMA bits (take 2)
  USB: musb: bugfixes for multi-packet TXDMA support
  USB: musb_host, fix ep0 fifo flushing
  USB: usb-storage: augment unusual_devs entry for Simple Tech/Datafab
  USB: musb_host, minor enqueue locking fix (v2)
  USB: fix oops in cdc-wdm in case of malformed descriptors
  USB: qcserial: Add extra device IDs
  USB: option: Add ids for D-Link DWM-652 3.5G modem
  ...

1 files changed, 2 insertions, 21 deletions

diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 569ef0fed0f6..1976e9b41800 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -579,6 +579,7 @@ cppi_next_tx_segment(struct musb *musb, struct cppi_channel *tx)
          * trigger the "send a ZLP?" confusion.
          */
         rndis = (maxpacket & 0x3f) == 0
+                && length > maxpacket
                 && length < 0xffff
                 && (length % maxpacket) != 0;
 
@@ -1228,27 +1229,7 @@ void cppi_completion(struct musb *musb, u32 rx, u32 tx)
 
                                 hw_ep = tx_ch->hw_ep;
 
-                                /* Peripheral role never repurposes the
-                                 * endpoint, so immediate completion is
-                                 * safe.  Host role waits for the fifo
-                                 * to empty (TXPKTRDY irq) before going
-                                 * to the next queued bulk transfer.
-                                 */
-                                if (is_host_active(cppi->musb)) {
-#if 0
-                                        /* WORKAROUND because we may
-                                         * not always get TXKPTRDY ...
-                                         */
-                                        int     csr;
-
-                                        csr = musb_readw(hw_ep->regs,
-                                                MUSB_TXCSR);
-                                        if (csr & MUSB_TXCSR_TXPKTRDY)
-#endif
-                                                completed = false;
-                                }
-                                if (completed)
-                                        musb_dma_completion(musb, index + 1, 1);
+                                musb_dma_completion(musb, index + 1, 1);
 
                         } else {
                                 /* Bigger transfer than we could fit in