From: Timur Tabi <timur@tabi.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: monstr@monstr.eu, Michal Simek <michal.simek@xilinx.com>,
linux-kernel@vger.kernel.org,
Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
linux-fbdev@vger.kernel.org
Subject: Re: [PATCH v3 7/8] video: xilinxfb: Fix sparse warnings
Date: Fri, 31 May 2013 15:06:43 +0000 [thread overview]
Message-ID: <51A8BC83.6050809@tabi.org> (raw)
In-Reply-To: <1466524.sgAzczhnBg@wuerfel>
On 05/31/2013 09:56 AM, Arnd Bergmann wrote:
> Yes, unfortunately, this is what all other frame buffer drivers do
> at the moment. It is technically not correct, but most architectures
> are able to call readl/writel on regular memory, or dereference
> __iomem tokens, so we often get away with it. It's probably not
> worth fixing it in the fbdev code base as that would be a huge
> change, and people are migrating to DRM/KMS.
But why bother fixing this bug if it just makes things worse? Sparse is
supposed to warn us about bad code. This patch doesn't fix the bug, it
just masks the warnings!
--
Timur Tabi
next prev parent reply other threads:[~2013-05-31 15:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-31 12:55 [PATCH v3 0/8] xilinxfb changes Michal Simek
[not found] ` <cover.1370004925.git.michal.simek-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
2013-05-31 12:55 ` [PATCH v3 1/8] video: xilinxfb: Fix OF probing on little-endian systems Michal Simek
2013-05-31 13:05 ` Timur Tabi
2013-05-31 13:09 ` Michal Simek
2013-05-31 12:55 ` [PATCH v3 2/8] video: xilinxfb: Do not name out_be32 in function name Michal Simek
2013-05-31 12:55 ` [PATCH v3 3/8] video: xilinxfb: Rename PLB_ACCESS_FLAG to BUS_ACCESS_FLAG Michal Simek
2013-05-31 12:55 ` [PATCH v3 4/8] video: xilinxfb: Use drvdata->regs_phys instead of physaddr Michal Simek
2013-05-31 12:55 ` [PATCH v3 5/8] video: xilinxfb: Group bus initialization Michal Simek
2013-05-31 12:55 ` [PATCH v3 6/8] video: xilinxfb: Add support for little endian accesses Michal Simek
2013-05-31 13:38 ` Arnd Bergmann
2013-05-31 12:55 ` [PATCH v3 7/8] video: xilinxfb: Fix sparse warnings Michal Simek
2013-05-31 13:26 ` Timur Tabi
2013-05-31 13:37 ` Michal Simek
2013-05-31 13:41 ` Timur Tabi
2013-05-31 14:22 ` Michal Simek
2013-05-31 14:56 ` Arnd Bergmann
2013-05-31 15:06 ` Timur Tabi [this message]
2013-05-31 15:29 ` Arnd Bergmann
2013-05-31 16:33 ` Michal Simek
2013-05-31 15:28 ` Arnd Bergmann
2013-05-31 12:55 ` [PATCH v3 8/8] video: xilinxfb: Use driver for Xilinx ARM Zynq Michal Simek
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