From: Yuri Benditovich <yuri.benditovich@daynix.com>
To: davem@davemloft.net, kuba@kernel.org, mst@redhat.com,
jasowang@redhat.com, ast@kernel.org, daniel@iogearbox.net,
andrii@kernel.org, kafai@fb.com, songliubraving@fb.com,
yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org,
rdunlap@infradead.org, willemb@google.com, gustavoars@kernel.org,
herbert@gondor.apana.org.au, steffen.klassert@secunet.com,
nogikh@google.com, pablo@netfilter.org, decui@microsoft.com,
cai@lca.pw, jakub@cloudflare.com, elver@google.com,
pabeni@redhat.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org, bpf@vger.kernel.org
Cc: yan@daynix.com
Subject: [RFC PATCH 4/7] tun: free bpf_program by bpf_prog_put instead of bpf_prog_destroy
Date: Tue, 12 Jan 2021 21:41:40 +0200 [thread overview]
Message-ID: <20210112194143.1494-5-yuri.benditovich@daynix.com> (raw)
In-Reply-To: <20210112194143.1494-1-yuri.benditovich@daynix.com>
The module never creates the bpf program with bpf_prog_create
so it shouldn't free it with bpf_prog_destroy.
The program is obtained by bpf_prog_get and should be freed
by bpf_prog_put. For BPF_PROG_TYPE_SOCKET_FILTER both
methods do the same but for other program types they don't.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
---
drivers/net/tun.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 455f7afc1f36..18c1baf1a6c1 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -2218,7 +2218,7 @@ static void tun_prog_free(struct rcu_head *rcu)
{
struct tun_prog *prog = container_of(rcu, struct tun_prog, rcu);
- bpf_prog_destroy(prog->prog);
+ bpf_prog_put(prog->prog);
kfree(prog);
}
--
2.17.1
next prev parent reply other threads:[~2021-01-12 19:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-12 19:41 [RFC PATCH 0/7] Support for virtio-net hash reporting Yuri Benditovich
2021-01-12 19:41 ` [RFC PATCH 1/7] skbuff: define field for hash report type Yuri Benditovich
2021-01-12 19:41 ` [RFC PATCH 2/7] vhost: support for hash report virtio-net feature Yuri Benditovich
2021-01-12 19:41 ` [RFC PATCH 3/7] tun: allow use of BPF_PROG_TYPE_SCHED_CLS program type Yuri Benditovich
2021-01-12 19:46 ` Alexei Starovoitov
2021-01-12 20:33 ` Yuri Benditovich
2021-01-12 20:40 ` Yuri Benditovich
2021-01-12 20:55 ` Yuri Benditovich
2021-01-18 9:16 ` Yuri Benditovich
2021-01-20 18:44 ` Alexei Starovoitov
2021-01-24 11:52 ` Yuri Benditovich
2021-01-12 19:41 ` Yuri Benditovich [this message]
2021-01-12 19:41 ` [RFC PATCH 5/7] tun: add ioctl code TUNSETHASHPOPULATION Yuri Benditovich
2021-01-12 19:41 ` [RFC PATCH 6/7] tun: populate hash in virtio-net header when needed Yuri Benditovich
2021-01-12 19:41 ` [RFC PATCH 7/7] tun: report new tun feature IFF_HASH Yuri Benditovich
2021-01-12 19:49 ` [RFC PATCH 0/7] Support for virtio-net hash reporting Yuri Benditovich
2021-01-12 20:28 ` Yuri Benditovich
2021-01-12 23:47 ` Willem de Bruijn
2021-01-13 4:05 ` Jason Wang
2021-01-13 14:33 ` Willem de Bruijn
2021-01-14 3:38 ` Jason Wang
2021-01-17 7:57 ` Yuri Benditovich
2021-01-18 2:46 ` Jason Wang
2021-01-18 9:09 ` Yuri Benditovich
2021-01-18 15:19 ` Willem de Bruijn
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