[PATCH 3.5 30/96] scripts/link-vmlinux.sh: only filter kernel symbols for arm

[Luis Henriques]

3.5.7.29 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ming Lei <tom.leiming at gmail.com>

commit 7122c3e9154b5d9a7422f68f02d8acf050fad2b0 upstream.

Actually CONFIG_PAGE_OFFSET isn't same with PAGE_OFFSET, so
it isn't easy to figue out PAGE_OFFSET defined in header
file from scripts.

Because CONFIG_PAGE_OFFSET may not be defined in some ARCHs(
64bit ARCH), or defined as bogus value in !MMU case, so
this patch only applys the filter on ARM when CONFIG_PAGE_OFFSET
is defined as the original problem is only on ARM.

Cc: Rusty Russell <rusty at rustcorp.com.au>
Fixes: f6537f2f0eba4eba3354e48dbe3047db6d8b6254
Singed-off-by: Ming Lei <tom.leiming at gmail.com>
Signed-off-by: Rusty Russell <rusty at rustcorp.com.au>
[ luis: backported to 3.5: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 scripts/link-vmlinux.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 7a9f7f9..304c9f1 100644
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -78,7 +78,9 @@ kallsyms()
 		kallsymopt=--all-symbols
 	fi
 
-	kallsymopt="${kallsymopt} --page-offset=$CONFIG_PAGE_OFFSET"
+	if [ -n "${CONFIG_ARM}" ] && [ -n "${CONFIG_PAGE_OFFSET}" ]; then
+		kallsymopt="${kallsymopt} --page-offset=$CONFIG_PAGE_OFFSET"
+	fi
 
 	local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL}               \
 		      ${NOSTDINC_FLAGS} ${LINUXINCLUDE} ${KBUILD_CPPFLAGS}"
-- 
1.8.3.2