* [PATCH bpf-next] selftests/bpf: bring back (void *) cast to set_ipv4_csum in test_tc_tunnel
@ 2019-04-11 22:53 Stanislav Fomichev
2019-04-12 6:01 ` Song Liu
2019-04-16 8:27 ` Daniel Borkmann
0 siblings, 2 replies; 4+ messages in thread
From: Stanislav Fomichev @ 2019-04-11 22:53 UTC (permalink / raw)
To: netdev, bpf
Cc: davem, ast, daniel, Stanislav Fomichev, Alan Maguire, Willem de Bruijn
It was removed in commit 166b5a7f2ca3 ("selftests_bpf: extend
test_tc_tunnel for UDP encap") without any explanation.
Otherwise I see:
progs/test_tc_tunnel.c:160:17: warning: taking address of packed member 'ip' of class or structure
'v4hdr' may result in an unaligned pointer value [-Waddress-of-packed-member]
set_ipv4_csum(&h_outer.ip);
^~~~~~~~~~
1 warning generated.
Cc: Alan Maguire <alan.maguire@oracle.com>
Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Fixes: 166b5a7f2ca3 ("selftests_bpf: extend test_tc_tunnel for UDP encap")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
---
tools/testing/selftests/bpf/progs/test_tc_tunnel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
index bcb00d737e95..ab56a6a72b7a 100644
--- a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
+++ b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
@@ -157,7 +157,7 @@ static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto,
bpf_ntohs(h_outer.ip.tot_len));
h_outer.ip.protocol = encap_proto;
- set_ipv4_csum(&h_outer.ip);
+ set_ipv4_csum((void *)&h_outer.ip);
/* store new outer network header */
if (bpf_skb_store_bytes(skb, ETH_HLEN, &h_outer, olen,
--
2.21.0.392.gf8f6787159e-goog
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH bpf-next] selftests/bpf: bring back (void *) cast to set_ipv4_csum in test_tc_tunnel
2019-04-11 22:53 [PATCH bpf-next] selftests/bpf: bring back (void *) cast to set_ipv4_csum in test_tc_tunnel Stanislav Fomichev
@ 2019-04-12 6:01 ` Song Liu
2019-04-12 6:32 ` Alan Maguire
2019-04-16 8:27 ` Daniel Borkmann
1 sibling, 1 reply; 4+ messages in thread
From: Song Liu @ 2019-04-12 6:01 UTC (permalink / raw)
To: Stanislav Fomichev
Cc: Networking, bpf, David S . Miller, Alexei Starovoitov,
Daniel Borkmann, Alan Maguire, Willem de Bruijn
On Thu, Apr 11, 2019 at 4:08 PM Stanislav Fomichev <sdf@google.com> wrote:
>
> It was removed in commit 166b5a7f2ca3 ("selftests_bpf: extend
> test_tc_tunnel for UDP encap") without any explanation.
>
> Otherwise I see:
> progs/test_tc_tunnel.c:160:17: warning: taking address of packed member 'ip' of class or structure
> 'v4hdr' may result in an unaligned pointer value [-Waddress-of-packed-member]
> set_ipv4_csum(&h_outer.ip);
> ^~~~~~~~~~
> 1 warning generated.
>
> Cc: Alan Maguire <alan.maguire@oracle.com>
> Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
> Fixes: 166b5a7f2ca3 ("selftests_bpf: extend test_tc_tunnel for UDP encap")
> Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
> ---
> tools/testing/selftests/bpf/progs/test_tc_tunnel.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
> index bcb00d737e95..ab56a6a72b7a 100644
> --- a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
> +++ b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
> @@ -157,7 +157,7 @@ static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto,
> bpf_ntohs(h_outer.ip.tot_len));
> h_outer.ip.protocol = encap_proto;
>
> - set_ipv4_csum(&h_outer.ip);
> + set_ipv4_csum((void *)&h_outer.ip);
>
> /* store new outer network header */
> if (bpf_skb_store_bytes(skb, ETH_HLEN, &h_outer, olen,
> --
> 2.21.0.392.gf8f6787159e-goog
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH bpf-next] selftests/bpf: bring back (void *) cast to set_ipv4_csum in test_tc_tunnel
2019-04-12 6:01 ` Song Liu
@ 2019-04-12 6:32 ` Alan Maguire
0 siblings, 0 replies; 4+ messages in thread
From: Alan Maguire @ 2019-04-12 6:32 UTC (permalink / raw)
To: Song Liu
Cc: Stanislav Fomichev, Networking, bpf, David S . Miller,
Alexei Starovoitov, Daniel Borkmann, Alan Maguire,
Willem de Bruijn
On Thu, 11 Apr 2019, Song Liu wrote:
> On Thu, Apr 11, 2019 at 4:08 PM Stanislav Fomichev <sdf@google.com> wrote:
> >
> > It was removed in commit 166b5a7f2ca3 ("selftests_bpf: extend
> > test_tc_tunnel for UDP encap") without any explanation.
> >
> > Otherwise I see:
> > progs/test_tc_tunnel.c:160:17: warning: taking address of packed member 'ip' of class or structure
> > 'v4hdr' may result in an unaligned pointer value [-Waddress-of-packed-member]
> > set_ipv4_csum(&h_outer.ip);
> > ^~~~~~~~~~
> > 1 warning generated.
> >
> > Cc: Alan Maguire <alan.maguire@oracle.com>
> > Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
> > Fixes: 166b5a7f2ca3 ("selftests_bpf: extend test_tc_tunnel for UDP encap")
> > Signed-off-by: Stanislav Fomichev <sdf@google.com>
>
> Acked-by: Song Liu <songliubraving@fb.com>
>
Thanks for fixing this Stanislav!
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
> > ---
> > tools/testing/selftests/bpf/progs/test_tc_tunnel.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
> > index bcb00d737e95..ab56a6a72b7a 100644
> > --- a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
> > +++ b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
> > @@ -157,7 +157,7 @@ static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto,
> > bpf_ntohs(h_outer.ip.tot_len));
> > h_outer.ip.protocol = encap_proto;
> >
> > - set_ipv4_csum(&h_outer.ip);
> > + set_ipv4_csum((void *)&h_outer.ip);
> >
> > /* store new outer network header */
> > if (bpf_skb_store_bytes(skb, ETH_HLEN, &h_outer, olen,
> > --
> > 2.21.0.392.gf8f6787159e-goog
> >
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH bpf-next] selftests/bpf: bring back (void *) cast to set_ipv4_csum in test_tc_tunnel
2019-04-11 22:53 [PATCH bpf-next] selftests/bpf: bring back (void *) cast to set_ipv4_csum in test_tc_tunnel Stanislav Fomichev
2019-04-12 6:01 ` Song Liu
@ 2019-04-16 8:27 ` Daniel Borkmann
1 sibling, 0 replies; 4+ messages in thread
From: Daniel Borkmann @ 2019-04-16 8:27 UTC (permalink / raw)
To: Stanislav Fomichev, netdev, bpf
Cc: davem, ast, Alan Maguire, Willem de Bruijn
On 04/12/2019 12:53 AM, Stanislav Fomichev wrote:
> It was removed in commit 166b5a7f2ca3 ("selftests_bpf: extend
> test_tc_tunnel for UDP encap") without any explanation.
>
> Otherwise I see:
> progs/test_tc_tunnel.c:160:17: warning: taking address of packed member 'ip' of class or structure
> 'v4hdr' may result in an unaligned pointer value [-Waddress-of-packed-member]
> set_ipv4_csum(&h_outer.ip);
> ^~~~~~~~~~
> 1 warning generated.
>
> Cc: Alan Maguire <alan.maguire@oracle.com>
> Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
> Fixes: 166b5a7f2ca3 ("selftests_bpf: extend test_tc_tunnel for UDP encap")
> Signed-off-by: Stanislav Fomichev <sdf@google.com>
Applied, thanks!
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-04-16 8:27 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2019-04-11 22:53 [PATCH bpf-next] selftests/bpf: bring back (void *) cast to set_ipv4_csum in test_tc_tunnel Stanislav Fomichev
2019-04-12 6:01 ` Song Liu
2019-04-12 6:32 ` Alan Maguire
2019-04-16 8:27 ` Daniel Borkmann
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