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virtio_ring: pull in spinlock header

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we use a spinlock now pull in the correct header to
make virtio_ring.c self sufficient.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2021-08-10 12:26:05 -04:00
parent ea2f6af165
commit f8ce72632f
1 changed files with 1 additions and 0 deletions
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drivers/virtio/virtio_ring.c
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@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/hrtimer.h>
#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
#include <xen/xen.h>
#ifdef DEBUG