linux-kernel - [PATCH v2 0/7] PCI/MSI: Remove IMS (Interrupt Message Store) support for now

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Date: Wed, 10 Apr 2024 17:13:00 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: linux-pci@...r.kernel.org,
	Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Kevin Tian <kevin.tian@...el.com>,
	Marc Zyngier <maz@...nel.org>,
	Reinette Chatre <reinette.chatre@...el.com>,
	Jason Gunthorpe <jgg@...dia.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Dave Jiang <dave.jiang@...el.com>,
	Megha Dey <megha.dey@...el.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
	Robin Murphy <robin.murphy@....com>,
	David Woodhouse <dwmw2@...radead.org>,
	Lu Baolu <baolu.lu@...ux.intel.com>,
	iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH v2 0/7] PCI/MSI: Remove IMS (Interrupt Message Store) support for now

From: Bjorn Helgaas <bhelgaas@...gle.com>

IMS (Interrupt Message Store) support appeared in v6.2, but there are no
users yet.

Remove it for now.  We can add it back when a user comes along.

I propose to merge this via the PCI tree unless somebody else wants it.


Changes since v1 (https://lore.kernel.org/linux-pci/20240401232326.1794707-1-helgaas@kernel.org/):
  - Revert other IMS commits in IOMMU, apic, genirq, suggested by Kevin

Bjorn Helgaas (7):
  Revert "PCI/MSI: Provide stubs for IMS functions"
  Revert "PCI/MSI: Provide pci_ims_alloc/free_irq()"
  Revert "PCI/MSI: Provide IMS (Interrupt Message Store) support"
  Revert "iommu/amd: Enable PCI/IMS"
  Revert "iommu/vt-d: Enable PCI/IMS"
  Revert "x86/apic/msi: Enable PCI/IMS"
  Revert "genirq/msi: Provide constants for PCI/IMS support"

 arch/x86/kernel/apic/msi.c          |  5 ---
 drivers/iommu/amd/iommu.c           | 17 +--------
 drivers/iommu/intel/irq_remapping.c | 19 ++--------
 drivers/pci/msi/api.c               | 50 ------------------------
 drivers/pci/msi/irqdomain.c         | 59 -----------------------------
 include/linux/irqdomain_defs.h      |  1 -
 include/linux/msi.h                 |  2 -
 include/linux/msi_api.h             |  1 -
 include/linux/pci.h                 | 26 -------------
 9 files changed, 5 insertions(+), 175 deletions(-)

-- 
2.34.1