From: Andi Kleen <ak@linux.intel.com>
Date: Sat, 8 Feb 2014 08:01:11 +0000 (+0100)
Subject: Kbuild, lto, workaround: Don't warn for initcall_reference in modpost
X-Git-Tag: v3.15-rc1~169^2~5
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=77ab21adae509c5540956729e2d03bc1a59bc82a;p=linux.git

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>
---

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)) {