[PATCH] x86: work around gcc 3.4.x bug

[Jeremy Fitzhardinge]

gcc-3.4.x crashes when compiling pgd_prepopulate_pmd() when
PREALLOCATED_PMDS == 0 and CONFIG_DEBUG_INFO is enabled.  This seems
to avoid the problem.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Cc: Adrian Bunk <bunk@xxxxxxxxxx>
Cc: Simon Horman <horms@xxxxxxxxxxxx>
Cc: Dhaval Giani <dhaval@xxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/pgtable.c |    3 +++
1 file changed, 3 insertions(+)

===================================================================
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -207,6 +207,9 @@
	unsigned long addr;
	int i;

+	if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
+		return;
+
	pud = pud_offset(pgd, 0);

 	for (addr = i = 0; i < PREALLOCATED_PMDS;


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/