[PATCH V2] MIPS: change type of asid_cache to unsigned long

[Yong Zhang]

asid_cache must be unsigned long otherwise on 64bit system
it will become 0 if the value in get_new_mmu_context()
reaches 0xffffffff and in the end the assumption of
ASID_FIRST_VERSION is not true anymore thus leads to
more dangerous things.

Reported-by: libin <huawei.libin@xxxxxxxxxx>
Signed-off-by: Yong Zhang <yong.zhang@xxxxxxxxxxxxx>
---

V2<-V1: Add the reporter.

 arch/mips/include/asm/cpu-info.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index f6299be..ebcc2ed 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -40,7 +40,7 @@ struct cache_desc {
 
 struct cpuinfo_mips {
 	unsigned int		udelay_val;
-	unsigned int		asid_cache;
+	unsigned long		asid_cache;
 
 	/*
 	 * Capability and feature descriptor structure for MIPS CPU
-- 
1.7.9.5

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