From: Cyril Chemparathy <cyril@ti.com>
To: <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>,
Nicolas Pitre <nico@linaro.org>,
Stephen Boyd <sboyd@codeaurora.org>,
Giancarlo Asnaghi <giancarlo.asnaghi@st.com>,
<u.kleine-koenig@pengutronix.de>,
Cyril Chemparathy <cyril@ti.com>
Subject: [PATCH] ARM: fix type of PHYS_PFN_OFFSET to unsigned long
Date: Wed, 12 Sep 2012 11:43:32 -0400 [thread overview]
Message-ID: <1347464612-22727-1-git-send-email-cyril@ti.com> (raw)
On LPAE machines, PHYS_OFFSET evaluates to a phys_addr_t and this type is
inherited by the PHYS_PFN_OFFSET definition as well. Consequently, the kernel
build emits warnings of the form:
init/main.c: In function 'start_kernel':
init/main.c:588:7: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'phys_addr_t' [-Wformat]
This patch fixes this warning by pinning down the PFN type to unsigned long.
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
---
arch/arm/include/asm/memory.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 73cf03a..632dc23 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -207,7 +207,7 @@ static inline unsigned long __phys_to_virt(unsigned long x)
* direct-mapped view. We assume this is the first page
* of RAM in the mem_map as well.
*/
-#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
+#define PHYS_PFN_OFFSET ((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))
/*
* These are *only* valid on the kernel direct mapped RAM memory.
--
1.7.9.5
reply other threads:[~2012-09-12 15:43 UTC|newest]
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