From 77ab21adae509c5540956729e2d03bc1a59bc82a Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Sat, 8 Feb 2014 09:01:11 +0100
Subject: [PATCH] Kbuild, lto, workaround: Don't warn for initcall_reference in
modpost
This reference is discarded, but can cause warnings when it refers to
exit. Ignore for now.
This is a workaround and can be removed once we get rid of
-fno-toplevel-reorder
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391846481-31491-7-git-send-email-ak@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
scripts/mod/modpost.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 40610984a1b5..1f1b1549f33f 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1455,6 +1455,10 @@ static void check_section_mismatch(const char *modname, struct elf_info *elf,
to = find_elf_symbol(elf, r->r_addend, sym);
tosym = sym_name(elf, to);
+ if (!strncmp(fromsym, "reference___initcall",
+ sizeof("reference___initcall")-1))
+ return;
+
/* check whitelist - we may ignore it */
if (secref_whitelist(mismatch,
fromsec, fromsym, tosec, tosym)) {
--
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