From bd79f94758c011bdffd8d4afcfb578d169cb5e93 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 23 Apr 2019 18:38:08 +0200
Subject: asm-generic: provide entirely generic nommu uaccess

Move the code to implement uaccess using memcpy or direct loads and
stores to asm-generic/uaccess.h and make it selectable kconfig option.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 lib/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/Kconfig')

diff --git a/lib/Kconfig b/lib/Kconfig
index a9e56539bd11..7a3f01ac45e8 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -591,6 +591,10 @@ config ARCH_NO_SG_CHAIN
 config ARCH_HAS_PMEM_API
 	bool
 
+# use memcpy to implement user copies for nommu architectures
+config UACCESS_MEMCPY
+	bool
+
 config ARCH_HAS_UACCESS_FLUSHCACHE
 	bool
 
-- 
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