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Subject[PATCH] pvcalls-front: 64-bit align flags
We are using test_and_* operations on the status and flag fields of
struct sock_mapping. However, these functions require the operand to be
64-bit aligned on arm64. Currently, only status is 64-bit aligned.

Make flags 64-bit aligned by introducing an explicit padding field.

Signed-off-by: Stefano Stabellini <stefano@aporeto.com>

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index ca5b773..aa07b2a 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -78,6 +78,7 @@ struct sock_mapping {
#define PVCALLS_STATUS_BIND 1
#define PVCALLS_STATUS_LISTEN 2
uint8_t status;
+ uint8_t pad[7];
/*
* Internal state-machine flags.
* Only one accept operation can be inflight for a socket.
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