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From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Thu, 4 Oct 2012 13:32:51 +0200
Subject: [PATCH] HACK: ARM: increase TASK_SIZE for !MMU
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is needed for strncpy_from_user and friends since
8c56cc8 (ARM: 7449/1: use generic strnlen_user and strncpy_from_user functions)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
arch/arm/include/asm/memory.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index e750a93..f0155d4 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -91,9 +91,12 @@
* It is difficult to define and perhaps will never meet the original meaning
* of this define that was meant to.
* Fortunately, there is no reference for this in noMMU mode, for now.
+ *
+ * HACK: copy_from_user must even handle copying from flash. So don't impose a
+ * limit at all. Not sure this is correct ...
*/
#ifndef TASK_SIZE
-#define TASK_SIZE (CONFIG_DRAM_SIZE)
+#define TASK_SIZE (~0UL)
#endif
#ifndef TASK_UNMAPPED_BASE
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