linux-kernel - Re: [RFC PATCH] i2c: remove use of in

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Message-ID: <20190401151352.tf7ljaqpzic6hlj3@ninjato>
Date:   Mon, 1 Apr 2019 17:13:52 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        linux-i2c@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Frederic Weisbecker <fweisbec@...il.com>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC PATCH] i2c: remove use of in_atomic()


> Looking at kernel_restart_prepare(), we set SYSTEM_REBOOT in normal
> context, specifically it just did a blocking notifier call.
> 
> So no, you'll have to combine the two.

I see now. Combining the two is still readable, but I'll abstract this
away into some 'i2c_is_atomic_xfer_mode()' helper with proper
explanation. Thank you for the input!


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