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Thu, 03 Sep 2026 09:26:32 -0700 (PDT) From: Gustavo Luiz Duarte Subject: [PATCH net-next v4 0/7] netconsole: validate a target's IP address configuration Date: Thu, 03 Sep 2026 17:25:59 +0100 Message-Id: <20260903-netcons_ipv6-v4-0-bdd183c844d3@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@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/13OSw6DIBQF0K00jEvDxyfSUffRNA0iKk39RCyxM e69SCfq8IV77mVGzgzWOHQ9zWgw3jrbteFIzieka9VWBtsi3IgRlhLBCW7NqLvWPW3vUwwpFAA lgGASBdIPprRTrLujkAzpaUSP/4v75C+jx7VtzdbWjd3wjcueRhFHMgL7EU8xwVQQxSGXrFD0V jXKvi+6a2K1ZxtMDz/0LGBeJKWWmVCSlEfMtzg5YB5wromkYDItYIeXZfkB/VdEez4BAAA= X-Change-ID: 20260730-netcons_ipv6-565d55f55729 To: Breno Leitao , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Jonathan Corbet , Shuah Khan Cc: Gustavo Luiz Duarte , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org 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 5-7 are follow-ups from previous reviews: move inet_addr from netpoll.h into netconsole.c, show an unset address as an empty string rather than "0.0.0.0", document local_ip auto-selection. Signed-off-by: Gustavo Luiz Duarte --- Changes in v4: - No changes, just reposting post merge window close. - Link to v3: https://patch.msgid.link/20260814-netcons_ipv6-v3-0-bc0915e8c75f@gmail.com Changes in v3: - Document local_ip auto-selection - Link to v2: https://patch.msgid.link/20260810-netcons_ipv6-v2-0-3d4fc987a90f@gmail.com 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 To: Jonathan Corbet To: Shuah Khan Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-doc@vger.kernel.org --- Gustavo Luiz Duarte (7): 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 docs: netconsole: document local_ip auto-selection Documentation/networking/netconsole.rst | 5 ++ drivers/net/netconsole.c | 132 ++++++++++++++++---------------- include/linux/netpoll.h | 5 -- 3 files changed, 70 insertions(+), 72 deletions(-) --- base-commit: 7042c8c193e5d634198b7c766bb3a01c8e3ee0e2 change-id: 20260730-netcons_ipv6-565d55f55729 Best regards, -- Gustavo Luiz Duarte