b754b0c721
Removed upstreamed: backport-5.10/850-v5.17-0004-PCI-aardvark-Clear-all-MSIs-at-setup.patch pending-5.10/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch All other patches automatically rebased. Build system: x86_64 Build-tested: bcm2711/RPi4B Signed-off-by: John Audia <therealgraysky@proton.me>
32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From 69c1f2c6f45a556361fd8e8d2d4eb20e2c8d3d95 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
|
|
Date: Thu, 18 Mar 2021 17:04:32 +0100
|
|
Subject: [PATCH] PCI: aardvark: Check return value of
|
|
generic_handle_domain_irq() when processing INTx IRQ
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
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(-)
|
|
|
|
--- a/drivers/pci/controller/pci-aardvark.c
|
|
+++ b/drivers/pci/controller/pci-aardvark.c
|
|
@@ -1438,7 +1438,9 @@ static void advk_pcie_handle_int(struct
|
|
PCIE_ISR1_REG);
|
|
|
|
virq = irq_find_mapping(pcie->irq_domain, i);
|
|
- generic_handle_irq(virq);
|
|
+ if (generic_handle_irq(virq) == -EINVAL)
|
|
+ dev_err_ratelimited(&pcie->pdev->dev, "unexpected INT%c IRQ\n",
|
|
+ (char)i + 'A');
|
|
}
|
|
}
|
|
|