From: "Németh Márton" <nm127@freemail.hu>
To: Grant Likely <grant.likely@secretlab.ca>,
Linus Walleij <linus.walleij@stericsson.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/2] gpio-pch: cleanup __iomem annotation usage
Date: Sun, 15 Jan 2012 11:32:24 +0100 [thread overview]
Message-ID: <4F12AB38.5040009@freemail.hu> (raw)
From: Márton Németh <nm127@freemail.hu>
The __iomem annotation is to be used together with pointers used
as iowrite32() parameter. For more details see [1] and [2].
This patch will remove the following sparse warnings ("make C=1"):
* warning: incorrect type in assignment (different address spaces)
* warning: incorrect type in argument 1 (different address spaces)
* warning: incorrect type in argument 2 (different address spaces)
References:
[1] A new I/O memory access mechanism (Sep 15, 2004)
http://lwn.net/Articles/102232/
[2] Being more anal about iospace accesses (Sep 15, 2004)
http://lwn.net/Articles/102240/
Signed-off-by: Márton Németh <nm127@freemail.hu>
---
drivers/gpio/gpio-pch.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index f060329..9061b55 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -231,7 +231,7 @@ static void pch_gpio_setup(struct pch_gpio *chip)
static int pch_irq_type(struct irq_data *d, unsigned int type)
{
u32 im;
- u32 *im_reg;
+ u32 __iomem *im_reg;
u32 ien;
u32 im_pos;
int ch;
--
1.7.2.5
next reply other threads:[~2012-01-15 10:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-15 10:32 Németh Márton [this message]
2012-01-17 8:14 ` [PATCH 1/2] gpio-pch: cleanup __iomem annotation usage Linus Walleij
2012-01-17 8:32 ` Németh Márton
2012-01-17 9:01 ` Linus Walleij
2012-01-17 20:43 ` [PATCH 1/2 v2] " Németh Márton
2012-01-17 22:49 ` [PATCH 1/2] " Grant Likely
2012-01-18 6:05 ` PATCH] use void __iomem * pointers for ioread32()/iowrite32() Németh Márton
2012-01-18 6:18 ` Al Viro
2012-01-18 21:07 ` Grant Likely
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