linux-kernel - [PATCH v2 7/7] Revert "genirq/msi: Provide constants for PCI/IMS support"

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Date: Wed, 10 Apr 2024 17:13:07 -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 7/7] Revert "genirq/msi: Provide constants for PCI/IMS support"

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

This reverts commit e23d4192bf9b612bce5b24f22719fd3cc6edaa69.

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.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 include/linux/irqdomain_defs.h | 1 -
 include/linux/msi.h            | 2 --
 include/linux/msi_api.h        | 1 -
 3 files changed, 4 deletions(-)

diff --git a/include/linux/irqdomain_defs.h b/include/linux/irqdomain_defs.h
index 5c1fe6f1fcde..36653e2ee1c9 100644
--- a/include/linux/irqdomain_defs.h
+++ b/include/linux/irqdomain_defs.h
@@ -25,7 +25,6 @@ enum irq_domain_bus_token {
 	DOMAIN_BUS_PCI_DEVICE_MSIX,
 	DOMAIN_BUS_DMAR,
 	DOMAIN_BUS_AMDVI,
-	DOMAIN_BUS_PCI_DEVICE_IMS,
 	DOMAIN_BUS_DEVICE_MSI,
 	DOMAIN_BUS_WIRED_TO_MSI,
 };
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 26d07e23052e..84859a9aa091 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -573,8 +573,6 @@ enum {
 	MSI_FLAG_MSIX_CONTIGUOUS	= (1 << 19),
 	/* PCI/MSI-X vectors can be dynamically allocated/freed post MSI-X enable */
 	MSI_FLAG_PCI_MSIX_ALLOC_DYN	= (1 << 20),
-	/* Support for PCI/IMS */
-	MSI_FLAG_PCI_IMS		= (1 << 21),
 };
 
 /**
diff --git a/include/linux/msi_api.h b/include/linux/msi_api.h
index 391087ad99b1..5ae72d1912c4 100644
--- a/include/linux/msi_api.h
+++ b/include/linux/msi_api.h
@@ -15,7 +15,6 @@ struct device;
  */
 enum msi_domain_ids {
 	MSI_DEFAULT_DOMAIN,
-	MSI_SECONDARY_DOMAIN,
 	MSI_MAX_DEVICE_IRQDOMAINS,
 };
 
-- 
2.34.1