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(parent: 6703052) | patch
usb: cdns3: gadget: clear trb->length as zero after preparing every trb
authorPeter Chen <peter.chen@nxp.com>
Wed, 25 Nov 2020 12:35:23 +0000 (20:35 +0800)
committerPeter Chen <peter.chen@nxp.com>
Mon, 30 Nov 2020 05:48:32 +0000 (13:48 +0800)
commit24fdaeeb294c14ea743ec99ada92380c060a428a
treea22f399405c2f51b62be853e78bdc9e9eb8a4391tree | snapshot
parent6703052fe30fa0d85f1fbbf50171486cb0148d2dcommit | diff
usb: cdns3: gadget: clear trb->length as zero after preparing every trb

It clears trb->length as zero before preparing td, but if scatter
buffer is used for td, there are several trbs within td, it needs to clear
every trb->length as zero, otherwise, the default value for trb->length
may not be zero after it begins to use the second round of trb rings.

Fixes: abc6b579048e ("usb: cdns3: gadget: using correct sg operations")
Signed-off-by: Peter Chen <peter.chen@nxp.com>
drivers/usb/cdns3/gadget.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)