linux-kernel - Re: [PATCH V9 03/16] rv/include: Add helper functions for deterministic automata

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Message-ID: <YuacJsPya8PSE8qt@geo.homenetwork>
Date:   Sun, 31 Jul 2022 23:13:42 +0800
From:   Tao Zhou <tao.zhou@...ux.dev>
To:     Daniel Bristot de Oliveira <bristot@...nel.org>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Jonathan Corbet <corbet@....net>,
        Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Marco Elver <elver@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Gabriele Paoloni <gpaoloni@...hat.com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Clark Williams <williams@...hat.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-trace-devel@...r.kernel.org, Tao Zhou <tao.zhou@...ux.dev>
Subject: Re: [PATCH V9 03/16] rv/include: Add helper functions for
 deterministic automata

On Fri, Jul 29, 2022 at 11:38:42AM +0200, Daniel Bristot de Oliveira wrote:

[...]

> +static inline type model_get_next_state_##name(enum states_##name curr_state,	\
> +					       enum events_##name event)	\
> +{										\
> +	if ((curr_state < 0) || (curr_state >= state_max_##name))		\
> +		return INVALID_STATE;						\
> +										\
> +	if ((event < 0) || (event >= event_max_##name))				\
> +		return INVALID_STATE;						\

Should define the INVALID_EVENT corresponding to event invalid case.