linux-kernel - [patch 20/20] genirq/msi: Remove unused alloc/free interfaces

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Date:   Fri, 11 Nov 2022 14:57:09 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>, linux-pci@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marc Zyngier <maz@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Ashok Raj <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
        Allen Hubbe <allenbh@...il.com>,
        "Ahmed S. Darwish" <darwi@...utronix.de>,
        Reinette Chatre <reinette.chatre@...el.com>
Subject: [patch 20/20] genirq/msi: Remove unused alloc/free interfaces

Now that all users are converted remove the old interfaces.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 include/linux/msi.h |    7 ----
 kernel/irq/msi.c    |   73 ----------------------------------------------------
 2 files changed, 80 deletions(-)

--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -475,13 +475,6 @@ int msi_domain_set_affinity(struct irq_d
 struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode,
 					 struct msi_domain_info *info,
 					 struct irq_domain *parent);
-int msi_domain_alloc_irqs_descs_locked(struct irq_domain *domain, struct device *dev,
-				       int nvec);
-int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
-			  int nvec);
-
-void msi_domain_free_irqs_descs_locked(struct irq_domain *domain, struct device *dev);
-void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev);
 
 int msi_domain_alloc_irqs_range_locked(struct device *dev, unsigned int domid,
 				       unsigned int first, unsigned int last);
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -1176,51 +1176,6 @@ int msi_domain_alloc_irqs_all_locked(str
 	return msi_domain_alloc_locked(dev, &ctrl);
 }
 
-/**
- * msi_domain_alloc_irqs_descs_locked - Allocate interrupts from a MSI interrupt domain
- * @domain:	The domain to allocate from
- * @dev:	Pointer to device struct of the device for which the interrupts
- *		are allocated
- * @nvec:	The number of interrupts to allocate
- *
- * Must be invoked from within a msi_lock_descs() / msi_unlock_descs()
- * pair. Use this for MSI irqdomains which implement their own vector
- * allocation/free.
- *
- * Return: %0 on success or an error code.
- */
-int msi_domain_alloc_irqs_descs_locked(struct irq_domain *domain, struct device *dev,
-				       int nvec)
-{
-	struct msi_ctrl ctrl = {
-		.domid	= MSI_DEFAULT_DOMAIN,
-		.first	= 0,
-		.last	= MSI_MAX_INDEX,
-		.nirqs	= nvec,
-	};
-
-	return msi_domain_alloc_locked(dev, &ctrl);
-}
-
-/**
- * msi_domain_alloc_irqs - Allocate interrupts from a MSI interrupt domain
- * @domain:	The domain to allocate from
- * @dev:	Pointer to device struct of the device for which the interrupts
- *		are allocated
- * @nvec:	The number of interrupts to allocate
- *
- * Return: %0 on success or an error code.
- */
-int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev, int nvec)
-{
-	int ret;
-
-	msi_lock_descs(dev);
-	ret = msi_domain_alloc_irqs_descs_locked(domain, dev, nvec);
-	msi_unlock_descs(dev);
-	return ret;
-}
-
 static void __msi_domain_free_irqs(struct device *dev, struct irq_domain *domain,
 				   struct msi_ctrl *ctrl)
 {
@@ -1347,34 +1302,6 @@ void msi_domain_free_irqs_all(struct dev
 	msi_unlock_descs(dev);
 }
 
-/**
- * msi_domain_free_irqs_descs_locked - Free interrupts from a MSI interrupt @domain associated to @dev
- * @domain:	The domain to managing the interrupts
- * @dev:	Pointer to device struct of the device for which the interrupts
- *		are free
- *
- * Must be invoked from within a msi_lock_descs() / msi_unlock_descs()
- * pair. Use this for MSI irqdomains which implement their own vector
- * allocation.
- */
-void msi_domain_free_irqs_descs_locked(struct irq_domain *domain, struct device *dev)
-{
-	msi_domain_free_irqs_range_locked(dev, MSI_DEFAULT_DOMAIN, 0, MSI_MAX_INDEX);
-}
-
-/**
- * msi_domain_free_irqs - Free interrupts from a MSI interrupt @domain associated to @dev
- * @domain:	The domain to managing the interrupts
- * @dev:	Pointer to device struct of the device for which the interrupts
- *		are free
- */
-void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev)
-{
-	msi_lock_descs(dev);
-	msi_domain_free_irqs_descs_locked(domain, dev);
-	msi_unlock_descs(dev);
-}
-
 /**
  * msi_get_domain_info - Get the MSI interrupt domain info for @domain
  * @domain:	The interrupt domain to retrieve data from