linux-kernel - [PATCH] livepatch: Fix the error message about unresolvable ambiguity

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Date:	Wed,  9 Mar 2016 15:20:59 +0100
From:	Petr Mladek <pmladek@...e.com>
To:	Josh Poimboeuf <jpoimboe@...hat.com>,
	Jiri Kosina <jikos@...nel.org>
Cc:	Jessica Yu <jeyu@...hat.com>, Miroslav Benes <mbenes@...e.cz>,
	live-patching@...r.kernel.org, linux-kernel@...r.kernel.org,
	Chris J Arges <chris.j.arges@...onical.com>,
	Petr Mladek <pmladek@...e.com>
Subject: [PATCH] livepatch: Fix the error message about unresolvable ambiguity

klp_find_callback() stops the search when sympos is not defined and
a second symbol of the same name is found. It means that the current
error message about the unresolvable ambiguity always prints "(2 matches)".

Let's remove this information. The total number of occurrences is
not much helpful. The author of the patch still must put a non-trivial
effort into searching the right position in the object file.

Signed-off-by: Petr Mladek <pmladek@...e.com>
---
 kernel/livepatch/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index bc2c85c064c1..f2eda09e8357 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -190,8 +190,8 @@ static int klp_find_object_symbol(const char *objname, const char *name,
 	if (args.addr == 0)
 		pr_err("symbol '%s' not found in symbol table\n", name);
 	else if (args.count > 1 && sympos == 0) {
-		pr_err("unresolvable ambiguity (%lu matches) on symbol '%s' in object '%s'\n",
-		       args.count, name, objname);
+		pr_err("unresolvable ambiguity on symbol '%s' in object '%s'\n",
+		       name, objname);
 	} else if (sympos != args.count && sympos > 0) {
 		pr_err("symbol position %lu for symbol '%s' in object '%s' not found\n",
 		       sympos, name, objname ? objname : "vmlinux");
-- 
1.8.5.6