From: <gregkh@linuxfoundation.org>
To: matthias.lange@kernkonzept.com, gregkh@linuxfoundation.org,
mathias.nyman@linux.intel.com
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "xhci: remove GFP_DMA flag from allocation" has been added to the 4.11-stable tree
Date: Tue, 23 May 2017 14:14:19 +0200 [thread overview]
Message-ID: <1495541659189149@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
xhci: remove GFP_DMA flag from allocation
to the 4.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xhci-remove-gfp_dma-flag-from-allocation.patch
and it can be found in the queue-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 5db851cf20857c5504b146046e97cb7781f2a743 Mon Sep 17 00:00:00 2001
From: Matthias Lange <matthias.lange@kernkonzept.com>
Date: Wed, 17 May 2017 18:32:04 +0300
Subject: xhci: remove GFP_DMA flag from allocation
From: Matthias Lange <matthias.lange@kernkonzept.com>
commit 5db851cf20857c5504b146046e97cb7781f2a743 upstream.
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.
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>
---
drivers/usb/host/xhci-mem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -56,7 +56,7 @@ static struct xhci_segment *xhci_segment
}
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);
Patches currently in stable-queue which might be from matthias.lange@kernkonzept.com are
queue-4.11/xhci-remove-gfp_dma-flag-from-allocation.patch
reply other threads:[~2017-05-23 12:14 UTC|newest]
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