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From:   Tao Zhou <tao.zhou@linux.dev>
To:     Daniel Bristot de Oliveira <bristot@kernel.org>
Cc:     Steven Rostedt <rostedt@goodmis.org>,
        Wim Van Sebroeck <wim@linux-watchdog.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Jonathan Corbet <corbet@lwn.net>,
        Ingo Molnar <mingo@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>,
        Will Deacon <will@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Marco Elver <elver@google.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Shuah Khan <skhan@linuxfoundation.org>,
        Gabriele Paoloni <gpaoloni@redhat.com>,
        Juri Lelli <juri.lelli@redhat.com>,
        Clark Williams <williams@redhat.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-trace-devel@vger.kernel.org, Tao Zhou <tao.zhou@linux.dev>
Subject: Re: [PATCH V9 03/16] rv/include: Add helper functions for
 deterministic automata
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References: <cover.1659052063.git.bristot@kernel.org>
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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.