Patch "genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP" has been added to the 4.7-stable tree

This is a note to let you know that I've just added the patch titled

genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP

to the 4.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
genirq-msi-remove-unused-msi_flag_identity_map.patch
and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Thomas Gleixner <[email protected]>
Date: Mon, 4 Jul 2016 17:39:22 +0900
Subject: genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP

From: Thomas Gleixner <[email protected]>

commit b6140914fd079e43ea75a53429b47128584f033a upstream.

No user and we definitely don't want to grow one.

---
 include/linux/msi.h |    6 ++----
 kernel/irq/msi.c    |    8 ++------
 2 files changed, 4 insertions(+), 10 deletions(-)

@@ -264,12 +264,10 @@ enum {
 	 * callbacks.
 	 */
 	MSI_FLAG_USE_DEF_CHIP_OPS	= (1 << 1),
-	/* Build identity map between hwirq and irq */
-	MSI_FLAG_IDENTITY_MAP		= (1 << 2),
 	/* Support multiple PCI MSI interrupts */
-	MSI_FLAG_MULTI_PCI_MSI		= (1 << 3),
+	MSI_FLAG_MULTI_PCI_MSI		= (1 << 2),
 	/* Support PCI MSIX interrupts */
-	MSI_FLAG_PCI_MSIX		= (1 << 4),
+	MSI_FLAG_PCI_MSIX		= (1 << 3),
 };
 
 int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,

@@ -324,7 +324,7 @@ int msi_domain_alloc_irqs(struct irq_dom
 	struct msi_domain_ops *ops = info->ops;
 	msi_alloc_info_t arg;
 	struct msi_desc *desc;
-	int i, ret, virq = -1;
+	int i, ret, virq;
 
 	ret = msi_domain_prepare_irqs(domain, dev, nvec, &arg);
 	if (ret)

@@ -332,12 +332,8 @@ int msi_domain_alloc_irqs(struct irq_dom
 
 	for_each_msi_entry(desc, dev) {
 		ops->set_desc(&arg, desc);
-		if (info->flags & MSI_FLAG_IDENTITY_MAP)
-			virq = (int)ops->get_hwirq(info, &arg);
-		else
-			virq = -1;
 
-		virq = __irq_domain_alloc_irqs(domain, virq, desc->nvec_used,
+		virq = __irq_domain_alloc_irqs(domain, -1, desc->nvec_used,
 					       dev_to_node(dev), &arg, false);
 		if (virq < 0) {
 			ret = -ENOSPC;

Patches currently in stable-queue which might be from [email protected] are

queue-4.7/x86-mm-disable-preemption-during-cr3-read-write.patch queue-4.7/genirq-msi-remove-unused-msi_flag_identity_map.patch queue-4.7/uprobes-x86-fix-rip-relative-handling-of-evex-encoded-instructions.patch queue-4.7/x86-platform-uv-skip-uv-runtime-services-mapping-in-the-efi_runtime_disabled-case.patch queue-4.7/efi-capsule-allocate-whole-capsule-into-virtual-memory.patch queue-4.7/genirq-msi-make-sure-pci-msis-are-activated-early.patch