[PATCH] iommu/arm-smmu: Demote error messages to debug in shutdown callback

Sai Prakash Ranjan
2020-03-27T13:29:24Z

Currently on reboot/shutdown, the following messages are
displayed on the console as error messages before the
system reboots/shutdown.

On SC7180:

arm-smmu 15000000.iommu: removing device with active domains!
arm-smmu 5040000.iommu: removing device with active domains!

Demote the log level to debug since it does not offer much
help in identifying/fixing any issue as the system is anyways
going down and reduce spamming the kernel log.

Reported-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
---
drivers/iommu/arm-smmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 16c4b87af42b..0a865e32054a 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -2250,7 +2250,7 @@ static int arm_smmu_device_remove(struct platform_device *pdev)
return -ENODEV;

if (!bitmap_empty(smmu->context_map, ARM_SMMU_MAX_CBS))
- dev_err(&pdev->dev, "removing device with active domains!\n");
+ dev_dbg(&pdev->dev, "removing device with active domains!\n");

arm_smmu_bus_init(NULL);
iommu_device_unregister(&smmu->iommu);
--
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