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Date:   Fri, 12 Apr 2019 15:04:38 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Raul E Rangel <rrangel@...omium.org>
Cc:     linux-trace-devel@...r.kernel.org, eballetbo@...il.com,
        zwisler@...omium.org, djkurtz@...omium.org,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        linux-kernel@...r.kernel.org, Benson Leung <bleung@...omium.org>
Subject: Re: [PATCH v2] chrome/platform: cros_ec_proto:: Add trace event to
 trace EC commands

On Fri, 12 Apr 2019 12:49:44 -0600
Raul E Rangel <rrangel@...omium.org> wrote:

> +#define ec_cmds \
> +	{EC_CMD_PROTO_VERSION, "PROTO_VERSION"}, \
> +	{EC_CMD_HELLO, "HELLO"}, \
> +	{EC_CMD_GET_VERSION, "GET_VERSION"}, \
> +	{EC_CMD_READ_TEST, "READ_TEST"}, \
> +	{EC_CMD_GET_BUILD_INFO, "GET_BUILD_INFO"}, \
> +	{EC_CMD_GET_CHIP_INFO, "GET_CHIP_INFO"}, \
> +	{EC_CMD_GET_BOARD_VERSION, "GET_BOARD_VERSION"}, \
> +	{EC_CMD_READ_MEMMAP, "READ_MEMMAP"}, \
> +	{EC_CMD_GET_CMD_VERSIONS, "GET_CMD_VERSIONS"}, \
> +	{EC_CMD_GET_COMMS_STATUS, "GET_COMMS_STATUS"}, \
> +	{EC_CMD_TEST_PROTOCOL, "TEST_PROTOCOL"}, \
> +	{EC_CMD_GET_PROTOCOL_INFO, "GET_PROTOCOL_INFO"}, \
> +	{EC_CMD_GSV_PAUSE_IN_S5, "GSV_PAUSE_IN_S5"}, \
> +	{EC_CMD_GET_FEATURES, "GET_FEATURES"}, \

Usually, if I have something like this, I would do:


#define ec_cmds \
	EC(PROTO_VERSION), \
	EC(HELLO), \
	EC(GET_VERSION), \
	EC(READ_TEST), \
	[...]

Then:

#define EC(a) {EC_CMD_##a, #a}

and then ec_cmds ends up with the same result with much less typing and
little risk for copy past errors.

-- Steve

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