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Date: Mon, 30 Nov 2009 19:58:24 +0000
From: Matt Fleming <matt@console-pimps.org>
To: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Cc: Paul Mundt <lethal@linux-sh.org>, Linux-SH <linux-sh@vger.kernel.org>
Subject: Re: [PATCH] sh: mach-ecovec24: update ecovec24 defconfig
Message-ID: <20091130195824.GA26460@console-pimps.org>
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diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 6bfd08d..8440b12 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -89,6 +89,8 @@ static inline void flush_cache_one(unsigned long start, unsigned long phys)
 {
 	unsigned long flags, exec_offset = 0;
 
+	WARN_ON(!(phys >= __MEMORY_START && phys < __MEMORY_START + __MEMORY_SIZE));
+
 	/*
 	 * All types of SH-4 require PC to be uncached to operate on the I-cache.
 	 * Some types of SH-4 require PC to be uncached to operate on the D-cache.