linux-kernel - Re: [PATCH 4.19 83/92] mfd: dln2: Run event handler loop under spinlock

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Date:   Fri, 21 Aug 2020 09:21:23 +0200
From:   Pavel Machek <pavel@...x.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: Re: [PATCH 4.19 83/92] mfd: dln2: Run event handler loop under
 spinlock

Hi!

> From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> 
> [ Upstream commit 3d858942250820b9adc35f963a257481d6d4c81d ]
> 
> The event handler loop must be run with interrupts disabled.
> Otherwise we will have a warning:
...
> Recently xHCI driver switched to tasklets in the commit 36dc01657b49
> ("usb: host: xhci: Support running urb giveback in tasklet
> context").

AFAICT, 36dc01657b49 is not included in 4.19.141, so this commit
should not be needed, either.

Best regards,
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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