linux-kernel - Re: [PATCH] spi/xilinx: Cast ioread32/iowrite32 function pointers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <2357790.QEsOKkOOBx@wuerfel>
Date:	Thu, 29 Jan 2015 23:28:15 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Cc:	"moderated list:ARM/S5P EXYNOS AR..." 
	<linux-arm-kernel@...ts.infradead.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Michal Simek <michal.simek@...inx.com>,
	Mark Brown <broonie@...nel.org>,
	Sören Brinkmann <soren.brinkmann@...inx.com>,
	linux-spi <linux-spi@...r.kernel.org>
Subject: Re: [PATCH] spi/xilinx: Cast ioread32/iowrite32 function pointers

On Thursday 29 January 2015 23:14:46 Ricardo Ribalda Delgado wrote:
> What about the different return type? u8 vs int

Too many drivers use all sorts of different types, I've given up
hope of changing drivers to agree on the same type here. Basically
you can think of 'void __iomem *' as the magic keyword for something
that gets returned from ioremap, can take an integer offset and gets
passed into readb/readw/readl/write..., but any other assumption beyond
that is dangerous.

	Arnd
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/