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| author | Li RongQing <lirongqing@baidu.com> | 2020-06-11 08:11:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-25 16:33:05 +0300 |
| commit | d10a69cadbf73f07cb555c260026d3ec9bf921b3 (patch) | |
| tree | d51178e59b060d378722dad3512f8071764d76f2 /net | |
| parent | d3265977519b2c3d1d1b42120076acc9356ac004 (diff) | |
| download | linux-d10a69cadbf73f07cb555c260026d3ec9bf921b3.tar.xz | |
xdp: Fix xsk_generic_xmit errno
[ Upstream commit aa2cad0600ed2ca6a0ab39948d4db1666b6c962b ]
Propagate sock_alloc_send_skb error code, not set it to
EAGAIN unconditionally, when fail to allocate skb, which
might cause that user space unnecessary loops.
Fixes: 35fcde7f8deb ("xsk: support for Tx")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/1591852266-24017-1-git-send-email-lirongqing@baidu.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/xdp/xsk.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c index 72caa4fb13f4..9ff2ab63e639 100644 --- a/net/xdp/xsk.c +++ b/net/xdp/xsk.c @@ -233,10 +233,8 @@ static int xsk_generic_xmit(struct sock *sk, struct msghdr *m, len = desc.len; skb = sock_alloc_send_skb(sk, len, 1, &err); - if (unlikely(!skb)) { - err = -EAGAIN; + if (unlikely(!skb)) goto out; - } skb_put(skb, len); addr = desc.addr; |