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Mon, 10 Aug 2026 09:47:41 -0700 (PDT) From: Gustavo Luiz Duarte Subject: [PATCH net-next v2 0/6] netconsole: validate a target's IP address configuration Date: Mon, 10 Aug 2026 17:47:24 +0100 Message-Id: <20260810-netcons_ipv6-v2-0-3d4fc987a90f@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/1WNQQ6DIBREr2L+ujSAQWtXvUdjGkTU31QwQImN8 e5FuupyMm/mbeC1Q+3hWmzgdESP1qTATwWoSZpRE+xTBk55ReuSEqODssY/cIkVEZXohRiEqHk DabI4PeCa7+6QyESvAdpf49/dU6twvB3shD5Y98nmyPIiSy5U/EsiI5SwmspSdA3vJbuNs8TXW dkZ2n3fv/hxk5PEAAAA X-Change-ID: 20260730-netcons_ipv6-565d55f55729 To: Breno Leitao , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Gustavo Luiz Duarte X-Mailer: b4 0.15.2 This series adds two validations to the target configuration when the user tries to enable it: first whether remote_ip was set, and second whether local_ip and remote_ip address families match. Refuse to enable the target if any of those validations fail. These validations are already done for the target passed on the command-line, so this aligns dynamic targets with the command-line behavior. The first two patches replace the per-target 'ipv6' flag with a per-address 'family' field, which makes it easier to detect these error conditions. Patches 3 and 4 implement the actual validations. Patches 5 and 6 are follow-ups from review of v1: move inet_addr from netpoll.h into netconsole.c, and show an unset address as an empty string rather than "0.0.0.0". Signed-off-by: Gustavo Luiz Duarte --- Changes in v2: - Show empty string in configfs for an unset IP address - Moved inet_addr definition from netpoll.h to netconsole.c - Moved address checks out of rtnl_lock() - Link to v1: https://patch.msgid.link/20260805-netcons_ipv6-v1-0-170a35b92da1@gmail.com To: Breno Leitao To: Andrew Lunn To: "David S. Miller" To: Eric Dumazet To: Jakub Kicinski To: Paolo Abeni To: Simon Horman Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- Gustavo Luiz Duarte (6): netconsole: add an address family to struct inet_addr netconsole: use the address family instead of the ipv6 flag netconsole: reject enabling a target with no remote IP address netconsole: reject a target mixing IPv4 and IPv6 addresses netconsole: show empty string for an unset IP address netconsole: move struct inet_addr into netconsole.c drivers/net/netconsole.c | 132 +++++++++++++++++++++++------------------------ include/linux/netpoll.h | 5 -- 2 files changed, 65 insertions(+), 72 deletions(-) --- base-commit: a23b36233d4103def55dc8cf65698106d0bd1e62 change-id: 20260730-netcons_ipv6-565d55f55729 Best regards, -- Gustavo Luiz Duarte