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From:   Yuri Benditovich <yuri.benditovich@daynix.com>
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Cc:     yan@daynix.com
Subject: [RFC PATCH 3/7] tun: allow use of BPF_PROG_TYPE_SCHED_CLS program type
Date:   Tue, 12 Jan 2021 21:41:39 +0200
Message-Id: <20210112194143.1494-4-yuri.benditovich@daynix.com>
In-Reply-To: <20210112194143.1494-1-yuri.benditovich@daynix.com>
References: <20210112194143.1494-1-yuri.benditovich@daynix.com>
Precedence: bulk

This program type can set skb hash value. It will be useful
when the tun will support hash reporting feature if virtio-net.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
---
 drivers/net/tun.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 7959b5c2d11f..455f7afc1f36 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -2981,6 +2981,8 @@ static int tun_set_ebpf(struct tun_struct *tun, struct tun_prog __rcu **prog_p,
 		prog = NULL;
 	} else {
 		prog = bpf_prog_get_type(fd, BPF_PROG_TYPE_SOCKET_FILTER);
+		if (IS_ERR(prog))
+			prog = bpf_prog_get_type(fd, BPF_PROG_TYPE_SCHED_CLS);
 		if (IS_ERR(prog))
 			return PTR_ERR(prog);
 	}
-- 
2.17.1