linux-kernel - [PATCH] include/asm-generic/pgtable.h: fix sparse warnings

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Date:	Thu, 16 Apr 2009 22:12:18 -0400
From:	"H Hartley Sweeten" <hartleys@...ionengravers.com>
To:	<linux-kernel@...r.kernel.org>
Subject: [PATCH] include/asm-generic/pgtable.h: fix sparse warnings

Fix a number of sparse warnings due to macro expansion.

  warning: symbol '__pte' shadows an earlier one

These sparse warning show up in the following sources:

  mm/fremap.c
  mm/mremap.c
  mm/memory.c
  mm/rmap.c

This trivial patch fixes all the warnings.

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>

---

diff --git a/include/asm-generic/pgtable.h
b/include/asm-generic/pgtable.h
index 8e6d0ca..c51b173 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -53,9 +53,9 @@
 #ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define ptep_get_and_clear(__mm, __address, __ptep)
\
 ({
\
-	pte_t __pte = *(__ptep);
\
+	pte_t ___pte = *(__ptep);
\
 	pte_clear((__mm), (__address), (__ptep));
\
-	__pte;
\
+	___pte;
\
 })
 #endif
  
--
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