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 <[email protected]> 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.
