Re: [PATCH] [ARM] 5435/1: fix compile warning in sanity_check_meminfo()

From: Russell King
Date: Sun Mar 29 2009 - 04:53:42 EST


From: Mikael Pettersson <mikpe@xxxxxxxx>

Compiling recent 2.6.29-rc kernels for ARM gives me the following warning:

arch/arm/mm/mmu.c: In function 'sanity_check_meminfo':
arch/arm/mm/mmu.c:697: warning: comparison between pointer and integer

This is because commit 3fd9825c42c784a59b3b90bdf073f49d4bb42a8d
"[ARM] 5402/1: fix a case of wrap-around in sanity_check_meminfo()"
in 2.6.29-rc5-git4 added a comparison of a pointer with PAGE_OFFSET,
which is an integer.

Fixed by casting PAGE_OFFSET to void *.

Signed-off-by: Mikael Pettersson <mikpe@xxxxxxxx>
Acked-by: Nicolas Pitre <nico@xxxxxxx>
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
---
arch/arm/mm/mmu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index d4d082c..5a89e57 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -694,7 +694,7 @@ static void __init sanity_check_meminfo(void)
* the vmalloc area.
*/
if (__va(bank->start) >= VMALLOC_MIN ||
- __va(bank->start) < PAGE_OFFSET) {
+ __va(bank->start) < (void *)PAGE_OFFSET) {
printk(KERN_NOTICE "Ignoring RAM at %.8lx-%.8lx "
"(vmalloc region overlap).\n",
bank->start, bank->start + bank->size - 1);
--
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