From f9108dee782fe45318a2c9f007fb72ab370d476d Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 29 Dec 2025 18:58:05 -0500 Subject: [PATCH] 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: Signed-off-by: Michael S. Tsirkin --- net/vmw_vsock/virtio_transport.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 999a0839726a0..b333a7591b26b 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -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) -- 2.47.3