From: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Marc Zyngier <marc.zyngier@arm.com>,
Jason Cooper <jason@lakedaemon.net>
Cc: Doug Berger <opendmb@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Mans Rullgard <mans@mansr.com>,
LKML <linux-kernel@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Mason <slash.tmp@free.fr>
Subject: [PATCH v3] irqchip/tango: Don't use incorrect irq_mask_ack callback
Date: Tue, 25 Jul 2017 15:08:49 +0200 [thread overview]
Message-ID: <dddc01e3-b4f0-1f94-db6a-e3d4b31e6f4d@sigmadesigns.com> (raw)
In-Reply-To: <8d29fec9-35b8-c33b-3091-3e9a51c99ed7@gmail.com>
irq_gc_mask_disable_reg_and_ack() is not equivalent to
irq_gc_mask_disable_reg() and irq_gc_ack_set_bit().
Leave the irq_mask_ack callback undefined, and let the irqchip
framework use irq_mask and irq_ack instead.
Reported-by: Doug Berger <opendmb@gmail.com>
Fixes: 4bba66899ac6 ("irqchip/tango: Add support for Sigma Designs SMP86xx/SMP87xx interrupt controller")
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Cc: stable@vger.kernel.org
---
As discussed previously, it is acceptable for tango to rely
on mask_ack_irq() doing the right thing(TM).
---
drivers/irqchip/irq-tango.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/irqchip/irq-tango.c b/drivers/irqchip/irq-tango.c
index bdbb5c0ff7fe..825085cdab99 100644
--- a/drivers/irqchip/irq-tango.c
+++ b/drivers/irqchip/irq-tango.c
@@ -141,7 +141,6 @@ static void __init tangox_irq_init_chip(struct irq_chip_generic *gc,
for (i = 0; i < 2; i++) {
ct[i].chip.irq_ack = irq_gc_ack_set_bit;
ct[i].chip.irq_mask = irq_gc_mask_disable_reg;
- ct[i].chip.irq_mask_ack = irq_gc_mask_disable_reg_and_ack;
ct[i].chip.irq_unmask = irq_gc_unmask_enable_reg;
ct[i].chip.irq_set_type = tangox_irq_set_type;
ct[i].chip.name = gc->domain->name;
--
2.11.0
next prev parent reply other threads:[~2017-07-25 13:08 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-19 19:07 [PATCH v2 0/6] Add support for BCM7271 style interrupt controller Doug Berger
2017-07-19 19:07 ` [PATCH v2 1/6] genirq: generic chip: add irq_gc_mask_disable_and_ack_set() Doug Berger
2017-07-19 19:07 ` [PATCH v2 2/6] irqchip/tango: Use irq_gc_mask_disable_and_ack_set Doug Berger
2017-07-24 16:40 ` Marc Gonzalez
2017-07-24 17:54 ` Doug Berger
2017-07-25 13:08 ` Marc Gonzalez [this message]
2017-07-25 13:16 ` [PATCH v3] irqchip/tango: Don't use incorrect irq_mask_ack callback Måns Rullgård
2017-07-25 13:26 ` Marc Gonzalez
2017-07-25 13:29 ` Måns Rullgård
2017-07-26 18:20 ` Florian Fainelli
2017-07-26 19:13 ` Måns Rullgård
2017-07-27 18:17 ` Florian Fainelli
2017-07-28 14:06 ` Marc Gonzalez
2017-08-07 12:56 ` Marc Zyngier
2017-08-18 18:24 ` Florian Fainelli
2017-08-19 16:05 ` Måns Rullgård
2017-08-21 13:25 ` Marc Gonzalez
2017-09-18 8:49 ` Marc Gonzalez
2017-07-25 14:15 ` Marc Gonzalez
2017-07-19 19:07 ` [PATCH v2 3/6] genirq: generic chip: remove irq_gc_mask_disable_reg_and_ack() Doug Berger
2017-07-19 19:07 ` [PATCH v2 4/6] irqchip: brcmstb-l2: Remove some processing from the handler Doug Berger
2017-07-19 19:07 ` [PATCH v2 5/6] irqchip: brcmstb-l2: Abstract register accesses Doug Berger
2017-07-19 19:07 ` [PATCH v2 6/6] irqchip: brcmstb-l2: Add support for the BCM7271 L2 controller Doug Berger
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