]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag
authorMathias Nyman <mathias.nyman@linux.intel.com>
Tue, 7 Jun 2022 19:11:33 +0000 (12:11 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 14 Jun 2022 16:41:48 +0000 (18:41 +0200)
commitc5ff742fbde3ceebb04a50f47e63b4912279fa17
tree786b73acb44816a034336f83bec02d1ed8179d7a
parent9cd5029759aa36eb949489628901968ab54bcaa0
Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag

commit c42e65664390be7c1ef3838cd84956d3a2739d60 upstream.

The bcm5974 driver does the allocation and dma mapping of the usb urb
data buffer, but driver does not set the URB_NO_TRANSFER_DMA_MAP flag
to let usb core know the buffer is already mapped.

usb core tries to map the already mapped buffer, causing a warning:
"xhci_hcd 0000:00:14.0: rejecting DMA map of vmalloc memory"

Fix this by setting the URB_NO_TRANSFER_DMA_MAP, letting usb core
know buffer is already mapped by bcm5974 driver

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215890
Link: https://lore.kernel.org/r/20220606113636.588955-1-mathias.nyman@linux.intel.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/input/mouse/bcm5974.c