From: "Marek Behún" <kabel@kernel.org>
To: Marc Zyngier <maz@kernel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <helgaas@kernel.org>
Cc: pali@kernel.org, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
"Marek Behún" <kabel@kernel.org>
Subject: [PATCH v2 05/23] PCI: aardvark: Check return value of generic_handle_domain_irq() when processing INTx IRQ
Date: Mon, 10 Jan 2022 02:50:00 +0100 [thread overview]
Message-ID: <20220110015018.26359-6-kabel@kernel.org> (raw)
In-Reply-To: <20220110015018.26359-1-kabel@kernel.org>
From: Pali Rohár <pali@kernel.org>
It is possible that we receive spurious INTx interrupt. Check for the
return value of generic_handle_domain_irq() when processing INTx IRQ.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
---
drivers/pci/controller/pci-aardvark.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 315147f2812f..252033a46e1e 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1434,7 +1434,9 @@ static void advk_pcie_handle_int(struct advk_pcie *pcie)
advk_writel(pcie, PCIE_ISR1_INTX_ASSERT(i),
PCIE_ISR1_REG);
- generic_handle_domain_irq(pcie->irq_domain, i);
+ if (generic_handle_domain_irq(pcie->irq_domain, i) == -EINVAL)
+ dev_err_ratelimited(&pcie->pdev->dev, "unexpected INT%c IRQ\n",
+ (char)i + 'A');
}
}
--
2.34.1
next prev parent reply other threads:[~2022-01-10 1:50 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-10 1:49 [PATCH v2 00/23] PCI: aardvark controller fixes BATCH 4 Marek Behún
2022-01-10 1:49 ` [PATCH v2 01/23] PCI: aardvark: Replace custom PCIE_CORE_INT_* macros with PCI_INTERRUPT_* Marek Behún
2022-01-10 17:07 ` Bjorn Helgaas
2022-01-10 1:49 ` [PATCH v2 02/23] PCI: aardvark: Fix reading MSI interrupt number Marek Behún
2022-02-04 17:24 ` Lorenzo Pieralisi
2022-02-05 10:53 ` Marc Zyngier
2022-01-10 1:49 ` [PATCH v2 03/23] PCI: aardvark: Fix support for MSI interrupts Marek Behún
2022-01-10 1:49 ` [PATCH v2 04/23] PCI: aardvark: Rewrite IRQ code to chained IRQ handler Marek Behún
2022-01-10 1:50 ` Marek Behún [this message]
2022-01-10 1:50 ` [PATCH v2 06/23] PCI: aardvark: Make MSI irq_chip structures static driver structures Marek Behún
2022-01-10 1:50 ` [PATCH v2 07/23] PCI: aardvark: Make msi_domain_info structure a static driver structure Marek Behún
2022-01-10 1:50 ` [PATCH v2 08/23] PCI: aardvark: Use dev_fwnode() instead of of_node_to_fwnode(dev->of_node) Marek Behún
2022-01-10 1:50 ` [PATCH v2 09/23] PCI: aardvark: Refactor unmasking summary MSI interrupt Marek Behún
2022-01-10 1:50 ` [PATCH v2 10/23] PCI: aardvark: Add support for masking MSI interrupts Marek Behún
2022-01-10 1:50 ` [PATCH v2 11/23] PCI: aardvark: Fix setting MSI address Marek Behún
2022-02-17 17:14 ` Bjorn Helgaas
2022-02-18 14:43 ` Marek Behún
2022-02-23 18:13 ` Bjorn Helgaas
2022-02-24 12:59 ` Pali Rohár
2022-02-24 19:43 ` Bjorn Helgaas
2022-01-10 1:50 ` [PATCH v2 12/23] PCI: aardvark: Enable MSI-X support Marek Behún
2022-01-10 1:50 ` [PATCH v2 13/23] PCI: aardvark: Add support for ERR interrupt on emulated bridge Marek Behún
2022-01-10 1:50 ` [PATCH v2 14/23] PCI: aardvark: Fix reading PCI_EXP_RTSTA_PME bit " Marek Behún
2022-01-10 1:50 ` [PATCH v2 15/23] PCI: aardvark: Optimize writing PCI_EXP_RTCTL_PMEIE and PCI_EXP_RTSTA_PME " Marek Behún
2022-01-10 1:50 ` [PATCH v2 16/23] PCI: aardvark: Add support for PME interrupts Marek Behún
2022-01-10 1:50 ` [PATCH v2 17/23] PCI: aardvark: Fix support for PME requester on emulated bridge Marek Behún
2022-01-10 1:50 ` [PATCH v2 18/23] PCI: aardvark: Use separate INTA interrupt for emulated root bridge Marek Behún
2022-01-10 1:50 ` [PATCH v2 19/23] PCI: aardvark: Remove irq_mask_ack callback for INTx interrupts Marek Behún
2022-01-10 1:50 ` [PATCH v2 20/23] PCI: aardvark: Don't mask irq when mapping Marek Behún
2022-01-10 1:50 ` [PATCH v2 21/23] PCI: aardvark: Drop __maybe_unused from advk_pcie_disable_phy() Marek Behún
2022-01-10 1:50 ` [PATCH v2 22/23] PCI: aardvark: Update comment about link going down after link-up Marek Behún
2022-01-10 1:50 ` [PATCH v2 23/23] PCI: aardvark: Make main irq_chip structure a static driver structure Marek Behún
2022-01-10 9:28 ` Marc Zyngier
2022-01-10 10:23 ` Marek Behún
2022-01-10 10:53 ` Pali Rohár
2022-01-10 14:44 ` Marc Zyngier
2022-01-10 15:19 ` Marek Behún
2022-02-08 10:50 ` (subset) [PATCH v2 00/23] PCI: aardvark controller fixes BATCH 4 Lorenzo Pieralisi
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