mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-14 14:42:34 -04:00
Code Issues Packages Projects Releases Wiki Activity

iommu/arm-smmu: Retire probe deferral workaround

Browse Source 
This reverts commit 229e6ee43d.

Now that the fundamental ordering issue between arm_smmu_get_by_fwnode()
and iommu_device_register() is resolved, the race condition for client
probe no longer exists either, so retire the specific workaround.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/4167c5dfa052d4c8bb780f0a30af63dcfc4ce6c1.1733406914.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Robin Murphy
2024-12-05 16:33:56 +00:00
committed by Will Deacon
parent 7d835134d4
commit 97cb1fa027
1 changed files with 0 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/iommu/arm/arm-smmu/arm-smmu.c
View File

@@ -1437,17 +1437,6 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev)
goto out_free;
} else {
smmu = arm_smmu_get_by_fwnode(fwspec->iommu_fwnode);
/*
* Defer probe if the relevant SMMU instance hasn't finished
* probing yet. This is a fragile hack and we'd ideally
* avoid this race in the core code. Until that's ironed
* out, however, this is the most pragmatic option on the
* table.
*/
if (!smmu)
return ERR_PTR(dev_err_probe(dev, -EPROBE_DEFER,
"smmu dev has not bound yet\n"));
}
ret = -EINVAL;