linux-kernel - Re: [PATCH] printk/nbcon: Restore IRQ in atomic flush after each emitted record

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Message-ID: <20251202162639.GD724103@e132581.arm.com>
Date: Tue, 2 Dec 2025 16:26:39 +0000
From: Leo Yan <leo.yan@....com>
To: John Ogness <john.ogness@...utronix.de>
Cc: Petr Mladek <pmladek@...e.com>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Breno Leitao <leitao@...ian.org>, linux@...linux.org.uk,
	paulmck@...nel.org, usamaarif642@...il.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel-team@...a.com, rmikey@...a.com
Subject: Re: [PATCH] printk/nbcon: Restore IRQ in atomic flush after each
 emitted record

On Tue, Dec 02, 2025 at 03:39:54PM +0106, John Ogness wrote:

[...]

> I am not really happy about all the local_irq_restore() usage. Using
> guard syntax would be nice here, but AFAICT there is no guard for
> local_irq_save()/_restore().

Sorry for suddenly jumping in.  Wouldn't guard(irqsave)() be helpful
here?