From: Paul Gortmaker <paul.gortmaker@windriver.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Alexandre Courbot <gnurou@gmail.com>,
Stephen Warren <swarren@wwwdotorg.org>,
Vinod Koul <vinod.koul@intel.com>,
linux-kernel@vger.kernel.org,
Haojian Zhuang <haojian.zhuang@gmail.com>,
dmaengine@vger.kernel.org, Laxman Dewangan <ldewangan@nvidia.com>,
Thierry Reding <thierry.reding@gmail.com>,
Daniel Mack <daniel@zonque.org>,
linux-tegra@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Robert Jarzmik <robert.jarzmik@free.fr>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/6] drivers/dma: drop modular code from non modular drivers
Date: Wed, 9 Dec 2015 19:17:42 -0500 [thread overview]
Message-ID: <20151210001741.GT22885@windriver.com> (raw)
In-Reply-To: <7162994.ydt4N8UgZZ@wuerfel>
[Re: [PATCH 0/6] drivers/dma: drop modular code from non modular drivers] On 10/12/2015 (Thu 00:29) Arnd Bergmann wrote:
> On Wednesday 09 December 2015 18:21:56 Paul Gortmaker wrote:
> > This series of commits is a slice of a larger project to ensure
> > people don't have dead code for module removal in non-modular
> > drivers. Overall there is roughly 5k lines of dead code in the
> > kernel due to this.
> >
> > There is a quasi-separate theme, in that some of the drivers were
> > allowing an unbind implicitly since it is enabled by default. But
> > for core DMA infrastructure drivers, this doesn't seem useful -- so
> > we also disable that here which allows us to delete any ".remove"
> > functions from the drivers that would otherwise be called during the
> > (impossible to trigger) module removal.
> >
> > Since ARM covers these files the best of all architectures, each
> > file was build tested for allmodconfig on ARM, which at the same
> > time confirms that the files are not built with "CC [M]" -- hence
> > genuinely non-modular.
> >
> > My testing and the larger patch series in general has been done
> > against the latest linux-next tree.
> >
> >
>
> We are in the process of changing the DMA drivers to a new way of
> passing the "filter" function around. We can soon build them
> all as loadable modules again.
Hi Arnd,
Thanks for the feedback -- just to clarify, you are suggesting I hold
on the series until I see what emerges in the next merge window?
Paul.
--
>
> Arnd
next prev parent reply other threads:[~2015-12-10 0:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-09 23:21 [PATCH 0/6] drivers/dma: drop modular code from non modular drivers Paul Gortmaker
2015-12-09 23:22 ` [PATCH 6/6] drivers/dma: make tegra20-apb-dma.c explicitly non-modular Paul Gortmaker
[not found] ` <1449703322-17762-1-git-send-email-paul.gortmaker-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>
2015-12-09 23:29 ` [PATCH 0/6] drivers/dma: drop modular code from non modular drivers Arnd Bergmann
2015-12-10 0:17 ` Paul Gortmaker [this message]
[not found] ` <20151210001741.GT22885-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>
2015-12-10 3:12 ` Vinod Koul
2015-12-10 9:01 ` Arnd Bergmann
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