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authorMatthias Lange <matthias.lange@kernkonzept.com>2017-05-17 18:32:04 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-05-18 15:19:42 +0200
commit5db851cf20857c5504b146046e97cb7781f2a743 (patch)
tree4d7ebe5b63616bf9cb360e342ef1e219d3d9bb99
parent63aea0dbab90a2461faaae357cbc8cfd6c8de9fe (diff)
xhci: remove GFP_DMA flag from allocation
There is no reason to restrict allocations to the first 16MB ISA DMA addresses. It is causing problems in a virtualization setup with enabled IOMMU (x86_64). The result is that USB is not working in the VM. CC: <stable@vger.kernel.org> Signed-off-by: Matthias Lange <matthias.lange@kernkonzept.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/xhci-mem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 12b573cfb846..1f1687e888d6 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -56,7 +56,7 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci,
}
if (max_packet) {
- seg->bounce_buf = kzalloc(max_packet, flags | GFP_DMA);
+ seg->bounce_buf = kzalloc(max_packet, flags);
if (!seg->bounce_buf) {
dma_pool_free(xhci->segment_pool, seg->trbs, dma);
kfree(seg);