From: Dave Young <dyoung@redhat.com>
Date: Tue, 13 Dec 2016 00:46:14 +0000 (-0800)
Subject: lib/Kconfig.debug: make CONFIG_STRICT_DEVMEM depend on CONFIG_DEVMEM
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6b2a65c7ff612035deb1012388738b54e08ab2a6;p=linux-beck.git

lib/Kconfig.debug: make CONFIG_STRICT_DEVMEM depend on CONFIG_DEVMEM

With CONFIG_DEVMEM not set, CONFIG_STRICT_DEVMEM will be useless even if
it is set =y, thus let's update the dependency in Kconfig.

Link: http://lkml.kernel.org/r/20161006051217.GA31027@dhcp-128-65.nay.redhat.com
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 65a619e0ad5d..e40a0715f422 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -2005,7 +2005,7 @@ config ARCH_HAS_DEVMEM_IS_ALLOWED
 
 config STRICT_DEVMEM
 	bool "Filter access to /dev/mem"
-	depends on MMU
+	depends on MMU && DEVMEM
 	depends on ARCH_HAS_DEVMEM_IS_ALLOWED
 	default y if TILE || PPC
 	---help---