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| author | Robin Murphy <robin.murphy@arm.com> | 2022-06-21 16:14:27 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-06 12:55:53 +0200 |
| commit | 4d26ba671e3deed010311345e4426e6e11eaaf4c (patch) | |
| tree | 4bbef47511c6955e24595aac837dc5b12d63dbec /drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | |
| parent | b321a2fba2734cbac799034081e20dcdb321ef4f (diff) | |
| download | lwn-4d26ba671e3deed010311345e4426e6e11eaaf4c.tar.gz lwn-4d26ba671e3deed010311345e4426e6e11eaaf4c.zip | |
iommu: Clean up release_device checks
Since .release_device is now called through per-device ops, any call
which gets as far as a driver definitely *is* for that driver, for a
device which has successfully passed .probe_device, so all the checks to
that effect are now redundant and can be removed. In the same vein we
can also skip freeing fwspecs which are now managed by core code.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/02671dbfad7a3343fc25a44222350efcb455fe3c.1655822151.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c')
| -rw-r--r-- | drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 448e7b7ce0f2..d9c1623ec1a9 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2702,20 +2702,14 @@ err_free_master: static void arm_smmu_release_device(struct device *dev) { - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - struct arm_smmu_master *master; - - if (!fwspec || fwspec->ops != &arm_smmu_ops) - return; + struct arm_smmu_master *master = dev_iommu_priv_get(dev); - master = dev_iommu_priv_get(dev); if (WARN_ON(arm_smmu_master_sva_enabled(master))) iopf_queue_remove_device(master->smmu->evtq.iopf, dev); arm_smmu_detach_dev(master); arm_smmu_disable_pasid(master); arm_smmu_remove_master(master); kfree(master); - iommu_fwspec_free(dev); } static struct iommu_group *arm_smmu_device_group(struct device *dev) |