Commit f9108dee authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

vsock/virtio: reorder fields to reduce padding 



Reorder struct virtio_vsock fields to place the DMA buffer (event_list)
last. This eliminates the padding from aligning the struct size on
ARCH_DMA_MINALIGN.

Message-ID: <ce44f61af415521e00ab7492aa16d3d19f00bd5e.1769632071.git.mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent d08fda2c

net/vmw_vsock/virtio_transport.c

+9 −9
Original line number Diff line number Diff line
@@ -55,15 +55,6 @@ struct virtio_vsock { 
	int rx_buf_nr;

	int rx_buf_max_nr;



	/* The following fields are protected by event_lock.

	 * vqs[VSOCK_VQ_EVENT] must be accessed with event_lock held.

	 */

	struct mutex event_lock;

	bool event_run;

	__dma_from_device_group_begin();

	struct virtio_vsock_event event_list[8];

	__dma_from_device_group_end();



	u32 guest_cid;

	bool seqpacket_allow;
@@ -77,6 +68,15 @@ struct virtio_vsock { 
	 */

	struct scatterlist *out_sgs[MAX_SKB_FRAGS + 1];

	struct scatterlist out_bufs[MAX_SKB_FRAGS + 1];



	/* The following fields are protected by event_lock.

	 * vqs[VSOCK_VQ_EVENT] must be accessed with event_lock held.

	 */

	struct mutex event_lock;

	bool event_run;

	__dma_from_device_group_begin();

	struct virtio_vsock_event event_list[8];

	__dma_from_device_group_end();

};



static u32 virtio_transport_get_local_cid(void)