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| author | Joerg Roedel <jroedel@suse.de> | 2021-03-17 10:10:37 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-03-18 10:46:49 +0100 |
| commit | 4b8ef157ca832f812b3302b1800548bd92c207de (patch) | |
| tree | d62618dcfc582d352dda0bfb64e4a866d12a8d80 | |
| parent | 9f81ca8d1fd68f5697c201f26632ed622e9e462f (diff) | |
| download | linux-stericsson-4b8ef157ca832f812b3302b1800548bd92c207de.tar.gz | |
iommu/amd: Keep track of amd_iommu_irq_remap state
The amd_iommu_irq_remap variable is set to true in amd_iommu_prepare().
But if initialization fails it is not set to false. Fix that and
correctly keep track of whether irq remapping is enabled or not.
References: https://bugzilla.kernel.org/show_bug.cgi?id=212133
References: https://bugzilla.suse.com/show_bug.cgi?id=1183132
Fixes: b34f10c2dc59 ("iommu/amd: Stop irq_remapping_select() matching when remapping is disabled")
Cc: stable@vger.kernel.org # v5.11
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20210317091037.31374-4-joro@8bytes.org
Acked-by: Huang Rui <ray.huang@amd.com>
| -rw-r--r-- | drivers/iommu/amd/init.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 61dae1800b7fa0..321f5906e6ed3a 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -3002,8 +3002,11 @@ int __init amd_iommu_prepare(void) amd_iommu_irq_remap = true; ret = iommu_go_to_state(IOMMU_ACPI_FINISHED); - if (ret) + if (ret) { + amd_iommu_irq_remap = false; return ret; + } + return amd_iommu_irq_remap ? 0 : -ENODEV; } |