From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Fri, 24 Jun 2016 21:50:30 +0000 (-0700)
Subject: init/main.c: fix initcall_blacklisted on ia64, ppc64 and parisc64
X-Git-Tag: v4.7-rc5~11^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0fd5ed8d897cffdc74903931bd7fcc9d8d154460;p=platform%2Fkernel%2Flinux-exynos.git

init/main.c: fix initcall_blacklisted on ia64, ppc64 and parisc64

When I replaced kasprintf("%pf") with a direct call to
sprint_symbol_no_offset I must have broken the initcall blacklisting
feature on the arches where dereference_function_descriptor() is
non-trivial.

Fixes: c8cdd2be213f (init/main.c: simplify initcall_blacklisted())
Link: http://lkml.kernel.org/r/1466027283-4065-1-git-send-email-linux@rasmusvillemoes.dk
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Yang Shi <yang.shi@linaro.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Petr Mladek <pmladek@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/init/main.c b/init/main.c
index 4c17fda5c2ff..63a5afb54f25 100644
--- a/init/main.c
+++ b/init/main.c
@@ -708,11 +708,13 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
 {
 	struct blacklist_entry *entry;
 	char fn_name[KSYM_SYMBOL_LEN];
+	unsigned long addr;
 
 	if (list_empty(&blacklisted_initcalls))
 		return false;
 
-	sprint_symbol_no_offset(fn_name, (unsigned long)fn);
+	addr = (unsigned long) dereference_function_descriptor(fn);
+	sprint_symbol_no_offset(fn_name, addr);
 
 	list_for_each_entry(entry, &blacklisted_initcalls, next) {
 		if (!strcmp(fn_name, entry->buf)) {