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Thu, 09 Jul 2026 17:13:42 -0700 (PDT) Received: from localhost ([2a03:2880:2ff:48::]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ccc9d3c99fsm51196295ad.68.2026.07.09.17.13.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jul 2026 17:13:42 -0700 (PDT) Date: Thu, 9 Jul 2026 17:13:03 -0700 From: Stanislav Fomichev To: Mahe Tardy Cc: bpf@vger.kernel.org, andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, jordan@jrife.io, martin.lau@linux.dev, yonghong.song@linux.dev, emil@etsalapatis.com, netdev@vger.kernel.org, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, davem@davemloft.net, horms@kernel.org Subject: Re: [PATCH bpf-next v11 4/5] selftests/bpf: add bpf_icmp_send recursion test Message-ID: References: <20260709144900.245904-1-mahe.tardy@gmail.com> <20260709144900.245904-5-mahe.tardy@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260709144900.245904-5-mahe.tardy@gmail.com> On 07/09, Mahe Tardy wrote: > This test is similar to test_icmp_send_unreach_cgroup but checks that, > in case of recursion, meaning that the BPF program calling the kfunc was > re-triggered by the icmp_send done by the kfunc, the kfunc will stop > early and return -EBUSY. > > The test attaches to the root cgroup to ensure the ICMP packet generated > by the kfunc re-triggers the BPF program. > > Reviewed-by: Emil Tsalapatis > Reviewed-by: Jordan Rife > Signed-off-by: Mahe Tardy Acked-by: Stanislav Fomichev