[patch V2 07/15] locking/rtmutex: Inline chainwalk depth check

From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>, Will Deacon <will@kernel.org>,
	Waiman Long <longman@redhat.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: [patch V2 07/15] locking/rtmutex: Inline chainwalk depth check
Date: Fri, 26 Mar 2021 16:29:36 +0100	[thread overview]
Message-ID: <20210326153943.754254046@linutronix.de> (raw)
In-Reply-To: 20210326152929.709289883@linutronix.de

There is no point for this wrapper at all.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/locking/rtmutex.c |   11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -343,14 +343,9 @@ static void rt_mutex_adjust_prio(struct
 static bool rt_mutex_cond_detect_deadlock(struct rt_mutex_waiter *waiter,
 					  enum rtmutex_chainwalk chwalk)
 {
-	/*
-	 * This is just a wrapper function for the following call,
-	 * because debug_rt_mutex_detect_deadlock() smells like a magic
-	 * debug feature and I wanted to keep the cond function in the
-	 * main source file along with the comments instead of having
-	 * two of the same in the headers.
-	 */
-	return debug_rt_mutex_detect_deadlock(waiter, chwalk);
+	if (IS_ENABLED(CONFIG_DEBUG_RT_MUTEX))
+		return waiter != NULL;
+	return chwalk == RT_MUTEX_FULL_CHAINWALK;
 }
 
 /*

