FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-25 02:48:21 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

usb: dwc3: ep0: Handle requests greater than wMaxPacketSize

Browse Source 
To allow ep0 out transfers of upto bounce buffer size
instead of maxpacketsize, use the transfer size as multiple
of ep0 maxpacket size.

Cc: stable@vger.kernel.org
Signed-off-by: Moiz Sonasath <m-sonasath@ti.com>
Signed-off-by: Partha Basak <p-basak2@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Moiz Sonasath 2012-03-14 00:44:56 -05:00 committed by Felipe Balbi
parent 6d258a4c42
commit 566ccdda07
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/usb/dwc3/ep0.c
View File

@ -559,8 +559,12 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
length = trb->size & DWC3_TRB_SIZE_MASK;
if (dwc->ep0_bounced) {
unsigned transfer_size = ur->length;
unsigned maxp = ep0->endpoint.maxpacket;
transfer_size += (maxp - (transfer_size % maxp));
transferred = min_t(u32, ur->length,
ep0->endpoint.maxpacket - length);
transfer_size - length);
memcpy(ur->buf, dwc->ep0_bounce, transferred);
dwc->ep0_bounced = false;
} else {