netdev - Re: [net-next 11/15] net/mlx5: Add support for FW reporter dump

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 5 May 2019 17:49:02 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Saeed Mahameed <saeedm@...lanox.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Jiri Pirko <jiri@...lanox.com>,
        Moshe Shemesh <moshe@...lanox.com>,
        Eran Ben Elisha <eranbe@...lanox.com>
Subject: Re: [net-next 11/15] net/mlx5: Add support for FW reporter dump

Sun, May 05, 2019 at 02:33:27AM CEST, saeedm@...lanox.com wrote:
>From: Moshe Shemesh <moshe@...lanox.com>
>
>Add support of dump callback for mlx5 FW reporter.
>Once we trigger FW dump, the FW will write the core dump to its raw data
>buffer. The tracer translates the raw data to traces and save it to a
>buffer. Once dump is done, the saved traces data is filled as objects
>into the dump buffer.
>

[...]

>+static void mlx5_fw_tracer_save_trace(struct mlx5_fw_tracer *tracer,
>+				      u64 timestamp, bool lost,
>+				      u8 event_id, char *msg)
>+{
>+	char *saved_traces = tracer->sbuff.traces_buff;
>+	u32 offset;
>+
>+	mutex_lock(&tracer->sbuff.lock);
>+	offset = tracer->sbuff.saved_traces_index * TRACE_STR_LINE;
>+	snprintf(saved_traces + offset, TRACE_STR_LINE,
>+		 "%s [0x%llx] %d [0x%x] %s", dev_name(&tracer->dev->pdev->dev),
>+		 timestamp, lost, event_id, msg);

Please format this using fmsg helpers instead.


>+
>+	tracer->sbuff.saved_traces_index =
>+		(tracer->sbuff.saved_traces_index + 1) & (SAVED_TRACES_NUM - 1);
>+	mutex_unlock(&tracer->sbuff.lock);
>+}

[...]