virtio: include asm/barrier explicitly

virtio_ring.h uses mb() and friends, make
it pull in asm/barrier.h itself, not rely
on other headers to do it.

---
 include/linux/virtio_ring.h | 1 +
 1 file changed, 1 insertion(+)

index ca3ad41..b300787 100644
@@ -1,6 +1,7 @@
 #ifndef _LINUX_VIRTIO_RING_H
 #define _LINUX_VIRTIO_RING_H
 
+#include <asm/barrier.h>
 #include <linux/irqreturn.h>
 #include <uapi/linux/virtio_ring.h>
 

MST

In particular this fixes warnings during test build:
[linux]$ make -C tools/virtio/
make: Entering directory `/home/mst/scm/linux/tools/virtio' cc -g -O2 -Wall -I. -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD
-U_FORTIFY_SOURCE -c -o virtio_test.o virtio_test.c
In file included from ./linux/virtio_ring.h:1:0,

                 from ../../usr/include/linux/vhost.h:17,
                 from virtio_test.c:14:

./linux/../../../include/linux/virtio_ring.h: In function ‘virtio_mb’:
./linux/../../../include/linux/virtio_ring.h:50:2: warning: implicit declaration of function ‘mb’ [-Wimplicit-function-declaration]

Applied.

Thanks,
Rusty.
PS. I'll squeeze these into this merge window, since they're trivial.

Hi Rusty,

s/'re trivial/fix bugs/ ;-)

Cheers,
Stephen Rothwell                    [email protected]

_______________________________________________
Virtualization mailing list
[email protected]
https://lists.linuxfoundation.org/mailman/listinfo/virtualization