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Wed, 11 Jun 2025 07:37:36 -0700 (PDT) Received: from localhost ([2a03:2880:20ff:71::]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7d250e70898sm861571885a.20.2025.06.11.07.37.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jun 2025 07:37:36 -0700 (PDT) From: Gustavo Luiz Duarte Date: Wed, 11 Jun 2025 07:36:03 -0700 Subject: [PATCH net-next 1/5] netconsole: introduce 'msgid' as a new sysdata field Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250611-netconsole-msgid-v1-1-1784a51feb1e@gmail.com> References: <20250611-netconsole-msgid-v1-0-1784a51feb1e@gmail.com> In-Reply-To: <20250611-netconsole-msgid-v1-0-1784a51feb1e@gmail.com> To: Breno Leitao , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan , Simon Horman , Jonathan Corbet Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org, Gustavo Luiz Duarte X-Mailer: b4 0.13.0 This adds a new sysdata field to enable assigning a per-target unique id to each message sent to that target. This id can later be appended as part of sysdata, allowing targets to detect dropped netconsole messages. Update count_extradata_entries() to take the new field into account. Signed-off-by: Gustavo Luiz Duarte --- drivers/net/netconsole.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index 21077aff061c..787d170c3a0b 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -113,6 +113,8 @@ enum sysdata_feature { SYSDATA_TASKNAME = BIT(1), /* Kernel release/version as part of sysdata */ SYSDATA_RELEASE = BIT(2), + /* Include a per-target message ID as part of sysdata */ + SYSDATA_MSGID = BIT(3), }; /** @@ -782,6 +784,8 @@ static size_t count_extradata_entries(struct netconsole_target *nt) entries += 1; if (nt->sysdata_fields & SYSDATA_RELEASE) entries += 1; + if (nt->sysdata_fields & SYSDATA_MSGID) + entries += 1; return entries; } -- 2.47.1