From: Simon Horman <horms@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: "Jakub Kicinski" <kuba@kernel.org>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
"Björn Töpel" <bjorn@kernel.org>,
"Alexei Starovoitov" <ast@kernel.org>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Eric Dumazet" <edumazet@google.com>,
"Hao Luo" <haoluo@google.com>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"Jiri Olsa" <jolsa@kernel.org>,
"John Fastabend" <john.fastabend@gmail.com>,
"Jonathan Lemon" <jonathan.lemon@gmail.com>,
"KP Singh" <kpsingh@kernel.org>,
"Maciej Fijalkowski" <maciej.fijalkowski@intel.com>,
"Magnus Karlsson" <magnus.karlsson@intel.com>,
"Martin KaFai Lau" <martin.lau@linux.dev>,
"Paolo Abeni" <pabeni@redhat.com>, "Song Liu" <song@kernel.org>,
"Stanislav Fomichev" <sdf@google.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Yonghong Song" <yonghong.song@linux.dev>
Subject: Re: [PATCH bpf-next v2] net: Add a warning if NAPI cb missed xdp_do_flush().
Date: Sun, 8 Oct 2023 15:48:24 +0200 [thread overview]
Message-ID: <20231008134824.GG831234@kernel.org> (raw)
In-Reply-To: <20231006154933.mQgxQHHt@linutronix.de>
On Fri, Oct 06, 2023 at 05:49:33PM +0200, Sebastian Andrzej Siewior wrote:
> A few drivers were missing a xdp_do_flush() invocation after
> XDP_REDIRECT.
>
> Add three helper functions each for one of the per-CPU lists. Return
> true if the per-CPU list is non-empty and flush the list.
> Add xdp_do_check_flushed() which invokes each helper functions and
> creats a warning if one of the functions had a non-empty list.
nit: creates
> Hide everything behind CONFIG_DEBUG_NET.
>
> Suggested-by: Jesper Dangaard Brouer <hawk@kernel.org>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
...
prev parent reply other threads:[~2023-10-08 13:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-29 16:58 [PATCH bpf-next] net: Add a warning if NAPI cb missed xdp_do_flush() Sebastian Andrzej Siewior
2023-09-29 17:52 ` Toke Høiland-Jørgensen
2023-10-04 14:09 ` Jakub Kicinski
2023-10-06 15:49 ` [PATCH bpf-next v2] " Sebastian Andrzej Siewior
2023-10-06 17:21 ` kernel test robot
2023-10-06 19:31 ` Jakub Kicinski
2023-10-07 15:43 ` [PATCH bpf-next v3] " Sebastian Andrzej Siewior
2023-10-10 6:57 ` [PATCH bpf-next -v4] " Sebastian Andrzej Siewior
2023-10-11 4:42 ` John Fastabend
2023-10-16 11:56 ` Daniel Borkmann
2023-10-16 12:57 ` [PATCH bpf-next -v5] " Sebastian Andrzej Siewior
2023-10-17 13:10 ` patchwork-bot+netdevbpf
2023-10-08 13:48 ` Simon Horman [this message]
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