iommu_put_resv_regions(9)

okay bestie, welcome to the Kernel API Manual 💖 today’s main character is iommu_put_resv_regions(9) and she is here to release reserved regions. no cap, it’s giving responsible cleanup era.

✨ NAME ✨

iommu_put_resv_regions — release reserved regions

🦋 SYNOPSIS 🦋

void iommu_put_resv_regions (struct device *dev , struct list_head *list
       );

🎀 ARGUMENTS 🎀

• dev — the device for which to free reserved regions. like, whose reserved-region situation are we cleaning up? this device right here. 🫶
• list — the reserved region list for the device. the actual list we’re releasing, bestie. 💅

🌈 DESCRIPTION 🌈

This releases a reserved region list acquired by iommu_get_resv_regions.

That’s the whole plot. If you got a reserved region list from iommu_get_resv_regions, this is the matching “okay we’re done here” moment. it’s giving cleanup icon behavior, and honestly? obsessed. ✨

💖 SEE ALSO 💖

Kernel file: ./drivers/iommu/iommu.c

The iommu bestie roster, all invited to the group chat:

• iommu_device_register(9)
• iommu_insert_resv_region(9)
• iommu_group_alloc(9)
• iommu_group_get_iommudata(9)
• iommu_group_set_iommudata(9)
• iommu_group_set_name(9)
• iommu_group_add_device(9)
• iommu_group_remove_device(9)
• iommu_group_mutex_assert(9)
• iommu_group_for_each_dev(9)
• iommu_group_get(9)
• iommu_group_ref_get(9)
• iommu_group_put(9)
• iommu_group_id(9)
• device_iommu_capable(9)
• iommu_group_has_isolated_msi(9)
• iommu_set_fault_handler(9)
• iommu_paging_domain_alloc_flags(9)
• iommu_attach_device(9)
• iommu_get_domain_for_dev(9)
• iommu_driver_get_domain_for_dev(9)
• iommu_attach_group(9)
• iommu_unmap(9)
• iommu_unmap_fast(9)
• report_iommu_fault(9)
• iommu_get_resv_regions(9)
• iommu_setup_default_domain(9)
• iommu_device_use_default_domain(9)
• iommu_device_unuse_default_domain(9)
• iommu_group_claim_dma_owner(9)
• iommu_device_claim_dma_owner(9)
• iommu_group_release_dma_owner(9)
• iommu_device_release_dma_owner(9)
• iommu_group_dma_owner_claimed(9)
• iommu_replace_device_pasid(9)
• iommu_attach_handle_get(9)
• iommu_attach_group_handle(9)
• iommu_detach_group_handle(9)
• iommu_replace_group_handle(9)
• pci_dev_reset_iommu_prepare(9)
• pci_dev_reset_iommu_done(9)
• iommu_dma_prepare_msi(9)

okay bye bestie 🫶 this one’s signed from ./drivers/iommu and stamped October 2026 — that’s the source/version footer energy, and yes, we mentioned it instead of copy-pasting the line. periodt. 💅