linux-kernel - [tip: irq/urgent] irqchip/irq-mvebu-sei: Move misplaced select() callback to SEI CP domain

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Message-ID: <173264767413.412.14263736309702033127.tip-bot2@tip-bot2>
Date: Tue, 26 Nov 2024 19:01:14 -0000
From: "tip-bot2 for Russell King (Oracle)" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
 Thomas Gleixner <tglx@...utronix.de>, stable@...r.kernel.org, x86@...nel.org,
 linux-kernel@...r.kernel.org, maz@...nel.org
Subject: [tip: irq/urgent] irqchip/irq-mvebu-sei: Move misplaced select()
 callback to SEI CP domain

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

Commit-ID:     81b9e4c6910fd779b679d7674ec7d3730c7f0e2c
Gitweb:        https://git.kernel.org/tip/81b9e4c6910fd779b679d7674ec7d3730c7f0e2c
Author:        Russell King (Oracle) <rmk+kernel@...linux.org.uk>
AuthorDate:    Thu, 21 Nov 2024 12:48:25 
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Tue, 26 Nov 2024 19:50:42 +01:00

irqchip/irq-mvebu-sei: Move misplaced select() callback to SEI CP domain

Commit fbdf14e90ce4 ("irqchip/irq-mvebu-sei: Switch to MSI parent")
introduced in v6.11-rc1 broke Mavell Armada platforms (and possibly others)
by incorrectly switching irq-mvebu-sei to MSI parent.

In the above commit, msi_parent_ops is set for the sei->cp_domain, but
rather than adding a .select method to mvebu_sei_cp_domain_ops (which is
associated with sei->cp_domain), it was added to mvebu_sei_domain_ops which
is associated with sei->sei_domain, which doesn't have any
msi_parent_ops. This makes the call to msi_lib_irq_domain_select() always
fail.

This bug manifests itself with the following kernel messages on Armada 8040
based systems:

 platform f21e0000.interrupt-controller:interrupt-controller@50: deferred probe pending: (reason unknown)
 platform f41e0000.interrupt-controller:interrupt-controller@50: deferred probe pending: (reason unknown)

Move the select callback to mvebu_sei_cp_domain_ops to cure it.

Fixes: fbdf14e90ce4 ("irqchip/irq-mvebu-sei: Switch to MSI parent")
Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: stable@...r.kernel.org
---
 drivers/irqchip/irq-mvebu-sei.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c
index f8c70f2..065166a 100644
--- a/drivers/irqchip/irq-mvebu-sei.c
+++ b/drivers/irqchip/irq-mvebu-sei.c
@@ -192,7 +192,6 @@ static void mvebu_sei_domain_free(struct irq_domain *domain, unsigned int virq,
 }
 
 static const struct irq_domain_ops mvebu_sei_domain_ops = {
-	.select	= msi_lib_irq_domain_select,
 	.alloc	= mvebu_sei_domain_alloc,
 	.free	= mvebu_sei_domain_free,
 };
@@ -306,6 +305,7 @@ static void mvebu_sei_cp_domain_free(struct irq_domain *domain,
 }
 
 static const struct irq_domain_ops mvebu_sei_cp_domain_ops = {
+	.select	= msi_lib_irq_domain_select,
 	.alloc	= mvebu_sei_cp_domain_alloc,
 	.free	= mvebu_sei_cp_domain_free,
 };