[0/2] video: omap*: Remove in_interrupt() usage.

Message ID	20210127172902.145335-1-bigeasy@linutronix.de (mailing list archive)
Headers	show Return-Path: <linux-omap-owner@kernel.org> From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> To: linux-omap@vger.kernel.org Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, Thomas Gleixner <tglx@linutronix.de> Subject: [PATCH 0/2] video: omap*: Remove in_interrupt() usage. Date: Wed, 27 Jan 2021 18:29:00 +0100 Message-Id: <20210127172902.145335-1-bigeasy@linutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk
Series	video: omap: Remove in_interrupt() usage. \| expand [0/2] video: omap: Remove in_interrupt() usage. [1/2] video: omap: Remove in_interrupt() usage. [2/2] video: omapfb: Remove WARN_ON(in_interrupt()).

Message ID

20210127172902.145335-1-bigeasy@linutronix.de (mailing list archive)

Headers

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-omap@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
        Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 0/2] video: omap*: Remove in_interrupt() usage.
Date: Wed, 27 Jan 2021 18:29:00 +0100
Message-Id: <20210127172902.145335-1-bigeasy@linutronix.de>
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

Series

video: omap*: Remove in_interrupt() usage. | expand

Message

Sebastian Andrzej Siewior Jan. 27, 2021, 5:29 p.m. UTC

Folks,

in the discussion about preempt count consistency across kernel
configurations:

 https://lore.kernel.org/r/20200914204209.256266093@linutronix.de/

it was concluded that the usage of in_interrupt() and related context
checks should be removed from non-core code.

In the long run, usage of 'preemptible, in_*irq etc.' should be banned from
driver code completely.

This series targets the video subsystem.

Sebastian