From: David S. Miller <davem@davemloft.net>
Date: Tue, 29 Apr 2014 19:58:03 +0000 (-0700)
Subject: sparc64: Fix range check in kern_addr_valid().
X-Git-Tag: submit/tizen/20160607.132125~4625^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ee73887e92a69ae0a5cda21c68ea75a27804c944;p=sdk%2Femulator%2Femulator-kernel.git

sparc64: Fix range check in kern_addr_valid().

In commit b2d438348024b75a1ee8b66b85d77f569a5dfed8 ("sparc64: Make
PAGE_OFFSET variable."), the MAX_PHYS_ADDRESS_BITS value was increased
(to 47).

This constant reference to '41UL' was missed.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index ac5f708..ff97960 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -916,7 +916,7 @@ static inline bool kern_addr_valid(unsigned long addr)
 {
 	unsigned long paddr = __pa(addr);
 
-	if ((paddr >> 41UL) != 0UL)
+	if ((paddr >> MAX_PHYS_ADDRESS_BITS) != 0UL)
 		return false;
 	return test_bit(paddr >> 22, sparc64_valid_addr_bitmap);
 }