linux-kernel - [2.6 patch] fix mm/mm

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Date:	Mon, 4 Aug 2008 21:19:15 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Mel Gorman <mel@....ul.ie>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [2.6 patch] fix mm/mm_init.c compilation

This patch fixes the following compile error with gcc 3.2:

<--  snip  -->

...
  CC      mm/mm_init.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/mm_init.c:77:1: directives may not be used inside a macro argument
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/mm_init.c:76:47: unterminated argument list invoking macro "mminit_dprintk"
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/mm_init.c: In function `mminit_verify_pageflags_layout':
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/mm_init.c:80: `mminit_dprintk' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/mm_init.c:80: (Each undeclared identifier is reported only once
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/mm_init.c:80: for each function it appears in.)
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/mm_init.c:80: syntax error before numeric constant
make[2]: *** [mm/mm_init.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@...nel.org>
Signed-off-by: Adrian Bunk <bunk@...nel.org>

---

 mm/mm_init.c |   13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -63,6 +63,13 @@ void __init mminit_verify_pageflags_layout(void)
 {
 	int shift, width;
 	unsigned long or_mask, add_mask;
+	int sections_shift;
+
+#ifdef SECTIONS_SHIFT
+	sections_shift = SECTIONS_SHIFT;
+#else
+	sections_shift = 0;
+#endif

 	shift = 8 * sizeof(unsigned long);
 	width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH;
@@ -74,11 +81,7 @@ void __init mminit_verify_pageflags_layout(void)
 		NR_PAGEFLAGS);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_shifts",
 		"Section %d Node %d Zone %d\n",
-#ifdef SECTIONS_SHIFT
-		SECTIONS_SHIFT,
-#else
-		0,
-#endif
+		sections_shift,
 		NODES_SHIFT,
 		ZONES_SHIFT);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_offsets",

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