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From: Jakub Kicinski <kuba@kernel.org>
To: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: netdev@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
	"Jason Wang" <jasowang@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	"Björn Töpel" <bjorn.topel@intel.com>,
	"Magnus Karlsson" <magnus.karlsson@intel.com>,
	"Jonathan Lemon" <jonathan.lemon@gmail.com>,
	"Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Jesper Dangaard Brouer" <hawk@kernel.org>,
	"John Fastabend" <john.fastabend@gmail.com>,
	"Andrii Nakryiko" <andrii@kernel.org>,
	"Martin KaFai Lau" <kafai@fb.com>,
	"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
	"KP Singh" <kpsingh@kernel.org>,
	virtualization@lists.linux-foundation.org, bpf@vger.kernel.org
Subject: Re: [PATCH net-next v2 5/7] virtio-net, xsk: realize the function of xsk packet sending
Date: Fri, 15 Jan 2021 20:47:44 -0800	[thread overview]
Message-ID: <20210115204744.7256a4bc@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> (raw)
In-Reply-To: <9e1f5a4b633887ce1f66e39bc762b8497a379a43.1610765285.git.xuanzhuo@linux.alibaba.com>

On Sat, 16 Jan 2021 10:59:26 +0800 Xuan Zhuo wrote:
> +	idx = sq->xsk.hdr_con % sq->xsk.hdr_n;

The arguments here are 64 bit, this code will not build on 32 bit
machines:

ERROR: modpost: "__umoddi3" [drivers/net/virtio_net.ko] undefined!

There's also a sparse warning in this patch:

drivers/net/virtio_net.c:2704:16: warning: incorrect type in assignment (different address spaces)
drivers/net/virtio_net.c:2704:16:    expected struct virtnet_xsk_hdr *xskhdr
drivers/net/virtio_net.c:2704:16:    got struct virtnet_xsk_hdr [noderef] __rcu *

  reply	other threads:[~2021-01-16  4:48 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-05  9:11 [PATCH netdev 0/5] virtio-net support xdp socket zero copy xmit Xuan Zhuo
2021-01-05  9:11 ` [PATCH netdev 1/5] xsk: support get page for drv Xuan Zhuo
2021-01-05  9:11 ` [PATCH netdev 2/5] virtio-net: support XDP_TX when not more queues Xuan Zhuo
2021-01-05  9:11 ` [PATCH netdev 3/5] virtio-net, xsk: distinguish XDP_TX and XSK XMIT ctx Xuan Zhuo
2021-01-05  9:11 ` [PATCH netdev 4/5] xsk, virtio-net: prepare for support xsk Xuan Zhuo
2021-01-05  9:11 ` [PATCH netdev 5/5] virtio-net, xsk: virtio-net support xsk zero copy tx Xuan Zhuo
2021-01-05 13:21   ` Michael S. Tsirkin
2021-01-05  9:32 ` [PATCH netdev 0/5] virtio-net support xdp socket zero copy xmit Jason Wang
2021-01-05 12:25 ` Michael S. Tsirkin
2021-01-16  2:59 ` [PATCH net-next v2 0/7] " Xuan Zhuo
2021-01-16  2:59   ` [PATCH net-next v2 1/7] xsk: support get page for drv Xuan Zhuo
2021-01-16  2:59   ` [PATCH net-next v2 2/7] virtio-net, xsk: distinguish XDP_TX and XSK XMIT ctx Xuan Zhuo
2021-01-18  6:45     ` Jason Wang
2021-01-16  2:59   ` [PATCH net-next v2 3/7] xsk, virtio-net: prepare for support xsk zerocopy xmit Xuan Zhuo
2021-01-16  2:59   ` [PATCH net-next v2 4/7] virtio-net, xsk: support xsk enable/disable Xuan Zhuo
2021-01-16  2:59   ` [PATCH net-next v2 5/7] virtio-net, xsk: realize the function of xsk packet sending Xuan Zhuo
2021-01-16  4:47     ` Jakub Kicinski [this message]
2021-01-18  9:10     ` Jason Wang
2021-01-18 12:27       ` Michael S. Tsirkin
2021-01-16  2:59   ` [PATCH net-next v2 6/7] virtio-net, xsk: implement xsk wakeup callback Xuan Zhuo
2021-01-19  4:50     ` Jason Wang
2021-01-16  2:59   ` [PATCH net-next v2 7/7] virtio-net, xsk: set xsk completed when packet sent done Xuan Zhuo
2021-01-18  6:28   ` [PATCH net-next v2 0/7] virtio-net support xdp socket zero copy xmit Jason Wang
     [not found] <1610971432.9632509-2-xuanzhuo@linux.alibaba.com>
2021-01-20  3:38 ` [PATCH net-next v2 5/7] virtio-net, xsk: realize the function of xsk packet sending Jason Wang

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