From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
Joerg Roedel <jroedel@suse.de>,
iommu@lists.linux-foundation.org, Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.4 057/134] iommu/arm-smmu-v3: Don't display an error when IRQ lines are missing
Date: Wed, 11 Dec 2019 10:10:33 -0500 [thread overview]
Message-ID: <20191211151150.19073-57-sashal@kernel.org> (raw)
In-Reply-To: <20191211151150.19073-1-sashal@kernel.org>
From: Jean-Philippe Brucker <jean-philippe@linaro.org>
[ Upstream commit f7aff1a93f52047739af31072de0ad8d149641f3 ]
Since commit 7723f4c5ecdb ("driver core: platform: Add an error message
to platform_get_irq*()"), platform_get_irq_byname() displays an error
when the IRQ isn't found. Since the SMMUv3 driver uses that function to
query which interrupt method is available, the message is now displayed
during boot for any SMMUv3 that doesn't implement the combined
interrupt, or that implements MSIs.
[ 20.700337] arm-smmu-v3 arm-smmu-v3.7.auto: IRQ combined not found
[ 20.706508] arm-smmu-v3 arm-smmu-v3.7.auto: IRQ eventq not found
[ 20.712503] arm-smmu-v3 arm-smmu-v3.7.auto: IRQ priq not found
[ 20.718325] arm-smmu-v3 arm-smmu-v3.7.auto: IRQ gerror not found
Use platform_get_irq_byname_optional() to avoid displaying a spurious
error.
Fixes: 7723f4c5ecdb ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/arm-smmu-v3.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 8da93e730d6fd..ed90361b84dc7 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -3611,19 +3611,19 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
/* Interrupt lines */
- irq = platform_get_irq_byname(pdev, "combined");
+ irq = platform_get_irq_byname_optional(pdev, "combined");
if (irq > 0)
smmu->combined_irq = irq;
else {
- irq = platform_get_irq_byname(pdev, "eventq");
+ irq = platform_get_irq_byname_optional(pdev, "eventq");
if (irq > 0)
smmu->evtq.q.irq = irq;
- irq = platform_get_irq_byname(pdev, "priq");
+ irq = platform_get_irq_byname_optional(pdev, "priq");
if (irq > 0)
smmu->priq.q.irq = irq;
- irq = platform_get_irq_byname(pdev, "gerror");
+ irq = platform_get_irq_byname_optional(pdev, "gerror");
if (irq > 0)
smmu->gerr_irq = irq;
}
--
2.20.1
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prev parent reply other threads:[~2019-12-11 15:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191211151150.19073-1-sashal@kernel.org>
2019-12-11 15:09 ` [PATCH AUTOSEL 5.4 014/134] iommu: rockchip: Free domain on .domain_free Sasha Levin
2019-12-11 15:09 ` [PATCH AUTOSEL 5.4 015/134] iommu/tegra-smmu: Fix page tables in > 4 GiB memory Sasha Levin
2019-12-11 15:10 ` Sasha Levin [this message]
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