linux-kernel - Re: [PATCH v2 12/15] spi/xilinx: Remove iowrite/ioread wrappers

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Message-ID: <CAPybu_24k6v3GJG9G2adYL08X-Uv-S4CYs3Kit0k=9emDCcuUw@mail.gmail.com>
Date:	Fri, 30 Jan 2015 07:13:10 +0100
From:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
To:	Mark Brown <broonie@...nel.org>,
	Michal Simek <michal.simek@...inx.com>,
	Sören Brinkmann <soren.brinkmann@...inx.com>,
	linux-spi <linux-spi@...r.kernel.org>,
	"moderated list:ARM/S5P EXYNOS AR..." 
	<linux-arm-kernel@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>
Cc:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Subject: Re: [PATCH v2 12/15] spi/xilinx: Remove iowrite/ioread wrappers

Hello Mark

This patch has caused a lot of issues on linux-next :S, sorry.

The root of the issue is that iowrite/ioread behaves differently in
different arches.

1) It does not necesary need to be a symbol in all the arches. It can
be declared as a function macro:

#define iowrite32(a,b) iowrite32(a,b)

2) Sometimes, even the function has a different prototype.

 include/asm-generic/iomap.h
 extern unsigned int ioread16be(void __iomem *);

 include/asm-generic/io.h
 extern unsigned int ioread16be(void __iomem *);

Until this is fixed, please revert this patch.

Sorry for the mess.

-- 
Ricardo Ribalda
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