lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <175691234810.1920.10556521436506250097.tip-bot2@tip-bot2>
Date: Wed, 03 Sep 2025 15:12:28 -0000
From: "tip-bot2 for Brian Norris" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Guenter Roeck <linux@...ck-us.net>,
 Brian Norris <briannorris@...omium.org>, Thomas Gleixner <tglx@...utronix.de>,
 David Gow <davidgow@...gle.com>, x86@...nel.org, linux-kernel@...r.kernel.org,
 maz@...nel.org
Subject:
 [tip: irq/core] genirq/test: Drop CONFIG_GENERIC_IRQ_MIGRATION assumptions

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     add03fdb9d52411cabb3872fb7692df6f4c67586
Gitweb:        https://git.kernel.org/tip/add03fdb9d52411cabb3872fb7692df6f4c67586
Author:        Brian Norris <briannorris@...omium.org>
AuthorDate:    Fri, 22 Aug 2025 11:59:06 -07:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Wed, 03 Sep 2025 17:04:52 +02:00

genirq/test: Drop CONFIG_GENERIC_IRQ_MIGRATION assumptions

Not all platforms use the generic IRQ migration code, even if they select
GENERIC_IRQ_MIGRATION. (See, for example, powerpc / pseries_cpu_disable().)

If such platforms don't perform managed shutdown the same way, the interrupt
may not actually shut down, and these tests fail:

[    4.357022][  T101]     # irq_cpuhotplug_test: EXPECTATION FAILED at kernel/irq/irq_test.c:211
[    4.357022][  T101]     Expected irqd_is_activated(data) to be false, but is true
[    4.358128][  T101]     # irq_cpuhotplug_test: EXPECTATION FAILED at kernel/irq/irq_test.c:212
[    4.358128][  T101]     Expected irqd_is_started(data) to be false, but is true
[    4.375558][  T101]     # irq_cpuhotplug_test: EXPECTATION FAILED at kernel/irq/irq_test.c:216
[    4.375558][  T101]     Expected irqd_is_activated(data) to be false, but is true
[    4.376088][  T101]     # irq_cpuhotplug_test: EXPECTATION FAILED at kernel/irq/irq_test.c:217
[    4.376088][  T101]     Expected irqd_is_started(data) to be false, but is true
[    4.377851][    T1]     # irq_cpuhotplug_test: pass:0 fail:1 skip:0 total:1
[    4.377901][    T1]     not ok 4 irq_cpuhotplug_test
[    4.378073][    T1] # irq_test_cases: pass:3 fail:1 skip:0 total:4

Rather than test that PowerPC performs migration the same way as the
unterrupt core, just drop the state checks. The point of the test was to
ensure that the code kept |depth| balanced, which still can be tested for.

Fixes: 66067c3c8a1e ("genirq: Add kunit tests for depth counts")
Reported-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Brian Norris <briannorris@...omium.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Guenter Roeck <linux@...ck-us.net>
Reviewed-by: David Gow <davidgow@...gle.com>
Link: https://lore.kernel.org/all/20250822190140.2154646-6-briannorris@chromium.org

---
 kernel/irq/irq_test.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/kernel/irq/irq_test.c b/kernel/irq/irq_test.c
index 56baeb5..bbb89a3 100644
--- a/kernel/irq/irq_test.c
+++ b/kernel/irq/irq_test.c
@@ -203,13 +203,9 @@ static void irq_cpuhotplug_test(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, desc->depth, 1);
 
 	KUNIT_EXPECT_EQ(test, remove_cpu(1), 0);
-	KUNIT_EXPECT_FALSE(test, irqd_is_activated(data));
-	KUNIT_EXPECT_FALSE(test, irqd_is_started(data));
 	KUNIT_EXPECT_GE(test, desc->depth, 1);
 	KUNIT_EXPECT_EQ(test, add_cpu(1), 0);
 
-	KUNIT_EXPECT_FALSE(test, irqd_is_activated(data));
-	KUNIT_EXPECT_FALSE(test, irqd_is_started(data));
 	KUNIT_EXPECT_EQ(test, desc->depth, 1);
 
 	enable_irq(virq);

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ