linux-kernel - [patch 1/2] gpio-pch: add an _

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Date:	Tue, 18 Oct 2011 09:26:21 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch 1/2] gpio-pch: add an __iomem anotation

Adding an __iomem anotation here silences some Sparse warnings.

drivers/gpio/gpio-pch.c:246:24: warning: incorrect type in assignment (different address spaces)
drivers/gpio/gpio-pch.c:246:24:    expected unsigned int [usertype] *im_reg
drivers/gpio/gpio-pch.c:246:24:    got unsigned int [noderef] <asn:2>*<noident>
drivers/gpio/gpio-pch.c:249:24: warning: incorrect type in assignment (different address spaces)
drivers/gpio/gpio-pch.c:249:24:    expected unsigned int [usertype] *im_reg
drivers/gpio/gpio-pch.c:249:24:    got unsigned int [noderef] <asn:2>*<noident>
drivers/gpio/gpio-pch.c:282:23: warning: incorrect type in argument 1 (different address spaces)
drivers/gpio/gpio-pch.c:282:23:    expected void [noderef] <asn:2>*<noident>
drivers/gpio/gpio-pch.c:282:23:    got unsigned int [usertype] *im_reg
drivers/gpio/gpio-pch.c:283:47: warning: incorrect type in argument 2 (different address spaces)
drivers/gpio/gpio-pch.c:283:47:    expected void [noderef] <asn:2>*<noident>
drivers/gpio/gpio-pch.c:283:47:    got unsigned int [usertype] *im_reg

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 596e454..4068084 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;
--
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