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[80.230.31.118]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4324ea830fesm100331450f8f.20.2026.01.05.00.23.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Jan 2026 00:23:44 -0800 (PST) Date: Mon, 5 Jan 2026 03:23:41 -0500 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Cong Wang , Jonathan Corbet , Olivia Mackall , Herbert Xu , Jason Wang , Paolo Bonzini , Stefan Hajnoczi , Eugenio =?utf-8?B?UMOpcmV6?= , "James E.J. Bottomley" , "Martin K. Petersen" , Gerd Hoffmann , Xuan Zhuo , Marek Szyprowski , Robin Murphy , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Petr Tesarik , Leon Romanovsky , Jason Gunthorpe , Bartosz Golaszewski , linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, virtualization@lists.linux.dev, linux-scsi@vger.kernel.org, iommu@lists.linux.dev, kvm@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v2 13/15] vsock/virtio: reorder fields to reduce padding Message-ID: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent 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. Signed-off-by: Michael S. Tsirkin --- net/vmw_vsock/virtio_transport.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index ef983c36cb66..964d25e11858 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -60,9 +60,7 @@ struct virtio_vsock { */ 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; @@ -76,6 +74,10 @@ struct virtio_vsock { */ struct scatterlist *out_sgs[MAX_SKB_FRAGS + 1]; struct scatterlist out_bufs[MAX_SKB_FRAGS + 1]; + + __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) -- MST