linux-kernel - Re: [PATCH 17/30] tracing: Improve panic/die notifiers

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Message-ID: <b81cf509-60d5-a733-0b06-374d9c146559@igalia.com>
Date:   Fri, 29 Apr 2022 11:44:43 -0300
From:   "Guilherme G. Piccoli" <gpiccoli@...lia.com>
To:     Steven Rostedt <rostedt@...dmis.org>
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Subject: Re: [PATCH 17/30] tracing: Improve panic/die notifiers

On 29/04/2022 10:56, Steven Rostedt wrote:
> [...]
> No. The fallthrough keyword is only needed when there's code between case
> labels. As it is very common to list multiple cases for the same code path.
> That is:
> 
> 	case DIE_OOPS:
>  	case PANIC_NOTIFIER:
>  		do_dump = 1;
>  		break;
> 
> Does not need a fall through label, as there's no code between the DIE_OOPS
> and the PANIC_NOTIFIER. But if you had:
> 
> 	case DIE_OOPS:
> 		x = true;
>  	case PANIC_NOTIFIER:
>  		do_dump = 1;
>  		break;
> 
> Then you do.
> 
> -- Steve

Thanks a bunch for the clarification, changed that for V2 =)