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From: =?UTF-8?q?=C5=81ukasz=20Bartosik?= <lb@semihalf.com>
To: Jason Baron <jbaron@akamai.com>,
	Jim Cromie <jim.cromie@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Kees Cook <keescook@chromium.org>,
	Douglas Anderson <dianders@chromium.org>
Cc: Guenter Roeck <groeck@google.com>,
	Yaniv Tzoreff <yanivt@google.com>,
	Benson Leung <bleung@google.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Vincent Whitchurch <vincent.whitchurch@axis.com>,
	Pekka Paalanen <ppaalanen@gmail.com>,
	Sean Paul <seanpaul@chromium.org>,
	Daniel Vetter <daniel@ffwll.ch>,
	Simon Ser <contact@emersion.fr>,
	John Ogness <john.ogness@linutronix.de>,
	Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	linux-kernel@vger.kernel.org,
	upstream@semihalf.com
Subject: [PATCH v3 22/22] dyndbg: id the bad word in parse-flags err msg
Date: Sat, 23 Dec 2023 02:51:31 +0100
Message-ID: <20231223015131.2836090-23-lb@semihalf.com>
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From: Jim Cromie <jim.cromie@gmail.com>

If ddebug_parse_flags() rejects user input, identify that input value
in the error message.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
 lib/dynamic_debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 4718e8faa719..d834581c785b 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -936,7 +936,7 @@ static int ddebug_exec_query(char *query_string, const char *modname)
 
 	/* check flags 1st (last arg) so query is pairs of spec,val */
 	if (ddebug_parse_flags(words[nwords-1], &modifiers)) {
-		pr_err("flags parse failed\n");
+		pr_err("flags parse failed on word-%d: %s\n", nwords-1, words[nwords-1]);
 		goto err;
 	}
 
-- 
2.43.0.472.g3155946c3a-goog