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From: Josh Cartwright <josh.cartwright@ni.com>
Date: Wed, 28 Jan 2015 13:08:45 -0600
Subject: lockdep: selftest: fix warnings due to missing PREEMPT_RT conditionals
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.17-rt32.tar.xz
"lockdep: Selftest: Only do hardirq context test for raw spinlock"
disabled the execution of certain tests with PREEMPT_RT, but did
not prevent the tests from still being defined. This leads to warnings
like:
./linux/lib/locking-selftest.c:574:1: warning: 'irqsafe1_hard_rlock_12' defined but not used [-Wunused-function]
./linux/lib/locking-selftest.c:574:1: warning: 'irqsafe1_hard_rlock_21' defined but not used [-Wunused-function]
./linux/lib/locking-selftest.c:577:1: warning: 'irqsafe1_hard_wlock_12' defined but not used [-Wunused-function]
./linux/lib/locking-selftest.c:577:1: warning: 'irqsafe1_hard_wlock_21' defined but not used [-Wunused-function]
./linux/lib/locking-selftest.c:580:1: warning: 'irqsafe1_soft_spin_12' defined but not used [-Wunused-function]
...
Fixed by wrapping the test definitions in #ifndef CONFIG_PREEMPT_RT
conditionals.
Signed-off-by: Josh Cartwright <josh.cartwright@ni.com>
Signed-off-by: Xander Huff <xander.huff@ni.com>
Acked-by: Gratian Crisan <gratian.crisan@ni.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
lib/locking-selftest.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -786,6 +786,8 @@ GENERATE_TESTCASE(init_held_rtmutex);
#include "locking-selftest-spin-hardirq.h"
GENERATE_PERMUTATIONS_2_EVENTS(irqsafe1_hard_spin)
+#ifndef CONFIG_PREEMPT_RT
+
#include "locking-selftest-rlock-hardirq.h"
GENERATE_PERMUTATIONS_2_EVENTS(irqsafe1_hard_rlock)
@@ -801,9 +803,12 @@ GENERATE_PERMUTATIONS_2_EVENTS(irqsafe1_
#include "locking-selftest-wlock-softirq.h"
GENERATE_PERMUTATIONS_2_EVENTS(irqsafe1_soft_wlock)
+#endif
+
#undef E1
#undef E2
+#ifndef CONFIG_PREEMPT_RT
/*
* Enabling hardirqs with a softirq-safe lock held:
*/
@@ -836,6 +841,8 @@ GENERATE_PERMUTATIONS_2_EVENTS(irqsafe2A
#undef E1
#undef E2
+#endif
+
/*
* Enabling irqs with an irq-safe lock held:
*/
@@ -859,6 +866,8 @@ GENERATE_PERMUTATIONS_2_EVENTS(irqsafe2A
#include "locking-selftest-spin-hardirq.h"
GENERATE_PERMUTATIONS_2_EVENTS(irqsafe2B_hard_spin)
+#ifndef CONFIG_PREEMPT_RT
+
#include "locking-selftest-rlock-hardirq.h"
GENERATE_PERMUTATIONS_2_EVENTS(irqsafe2B_hard_rlock)
@@ -874,6 +883,8 @@ GENERATE_PERMUTATIONS_2_EVENTS(irqsafe2B
#include "locking-selftest-wlock-softirq.h"
GENERATE_PERMUTATIONS_2_EVENTS(irqsafe2B_soft_wlock)
+#endif
+
#undef E1
#undef E2
@@ -905,6 +916,8 @@ GENERATE_PERMUTATIONS_2_EVENTS(irqsafe2B
#include "locking-selftest-spin-hardirq.h"
GENERATE_PERMUTATIONS_3_EVENTS(irqsafe3_hard_spin)
+#ifndef CONFIG_PREEMPT_RT
+
#include "locking-selftest-rlock-hardirq.h"
GENERATE_PERMUTATIONS_3_EVENTS(irqsafe3_hard_rlock)
@@ -920,6 +933,8 @@ GENERATE_PERMUTATIONS_3_EVENTS(irqsafe3_
#include "locking-selftest-wlock-softirq.h"
GENERATE_PERMUTATIONS_3_EVENTS(irqsafe3_soft_wlock)
+#endif
+
#undef E1
#undef E2
#undef E3
@@ -953,6 +968,8 @@ GENERATE_PERMUTATIONS_3_EVENTS(irqsafe3_
#include "locking-selftest-spin-hardirq.h"
GENERATE_PERMUTATIONS_3_EVENTS(irqsafe4_hard_spin)
+#ifndef CONFIG_PREEMPT_RT
+
#include "locking-selftest-rlock-hardirq.h"
GENERATE_PERMUTATIONS_3_EVENTS(irqsafe4_hard_rlock)
@@ -968,10 +985,14 @@ GENERATE_PERMUTATIONS_3_EVENTS(irqsafe4_
#include "locking-selftest-wlock-softirq.h"
GENERATE_PERMUTATIONS_3_EVENTS(irqsafe4_soft_wlock)
+#endif
+
#undef E1
#undef E2
#undef E3
+#ifndef CONFIG_PREEMPT_RT
+
/*
* read-lock / write-lock irq inversion.
*
@@ -1161,6 +1182,11 @@ GENERATE_PERMUTATIONS_3_EVENTS(W1W2_R2R3
#undef E1
#undef E2
#undef E3
+
+#endif
+
+#ifndef CONFIG_PREEMPT_RT
+
/*
* read-lock / write-lock recursion that is actually safe.
*/
@@ -1207,6 +1233,8 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_
#undef E2
#undef E3
+#endif
+
/*
* read-lock / write-lock recursion that is unsafe.
*/
|
