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author | Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-16 10:05:06 -0800 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-16 10:05:06 -0800 |
commit | 36facadd9ea98f8415d0dbb63e0763b7ee9d3911 (patch) | |
tree | 99dea00b332ed852f2b0a4923b581dd723f03634 /drivers/usb/gadget/u_ether.c | |
parent | 2faa83e2a519abea1055d156ce1b42b8fa57e87b (diff) | |
parent | 0b83ae960cd7d4a5ee02786ecf41ab45688999bf (diff) | |
download | op-kernel-dev-36facadd9ea98f8415d0dbb63e0763b7ee9d3911.zip op-kernel-dev-36facadd9ea98f8415d0dbb63e0763b7ee9d3911.tar.gz |
Merge branch 'usb-next' into musb-merge
* usb-next: (132 commits)
USB: uas: Use GFP_NOIO instead of GFP_KERNEL in I/O submission path
USB: uas: Ensure we only bind to a UAS interface
USB: uas: Rename sense pipe and sense urb to status pipe and status urb
USB: uas: Use kzalloc instead of kmalloc
USB: uas: Fix up the Sense IU
usb: musb: core: kill unneeded #include's
DA8xx: assign name to MUSB IRQ resource
usb: gadget: g_ncm added
usb: gadget: f_ncm.c added
usb: gadget: u_ether: prepare for NCM
usb: pch_udc: Fix setup transfers with data out
usb: pch_udc: Fix compile error, warnings and checkpatch warnings
usb: add ab8500 usb transceiver driver
USB: gadget: Implement runtime PM for MSM bus glue driver
USB: gadget: Implement runtime PM for ci13xxx gadget
USB: gadget: Add USB controller driver for MSM SoC
USB: gadget: Introduce ci13xxx_udc_driver struct
USB: gadget: Initialize ci13xxx gadget device's coherent DMA mask
USB: gadget: Fix "scheduling while atomic" bugs in ci13xxx_udc
USB: gadget: Separate out PCI bus code from ci13xxx_udc
...
Diffstat (limited to 'drivers/usb/gadget/u_ether.c')
-rw-r--r-- | drivers/usb/gadget/u_ether.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index fbe86ca..e3454fe 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -240,6 +240,9 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags) size += out->maxpacket - 1; size -= size % out->maxpacket; + if (dev->port_usb->is_fixed) + size = max(size, dev->port_usb->fixed_out_len); + skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags); if (skb == NULL) { DBG(dev, "no rx skb\n"); @@ -578,12 +581,19 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb, req->context = skb; req->complete = tx_complete; + /* NCM requires no zlp if transfer is dwNtbInMaxSize */ + if (dev->port_usb->is_fixed && + length == dev->port_usb->fixed_in_len && + (length % in->maxpacket) == 0) + req->zero = 0; + else + req->zero = 1; + /* use zlp framing on tx for strict CDC-Ether conformance, * though any robust network rx path ignores extra padding. * and some hardware doesn't like to write zlps. */ - req->zero = 1; - if (!dev->zlp && (length % in->maxpacket) == 0) + if (req->zero && !dev->zlp && (length % in->maxpacket) == 0) length++; req->length = length; |