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genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP

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

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-block@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-nvme@lists.infradead.org
Cc: axboe@fb.com
Cc: agordeev@redhat.com
Link: http://lkml.kernel.org/r/1467621574-8277-2-git-send-email-hch@lst.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2016-07-04 17:39:22 +09:00
parent a99cde438d
commit b6140914fd
2 changed files with 4 additions and 10 deletions
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6
include/linux/msi.h
View File

@ -264,12 +264,10 @@ enum {
* callbacks. * callbacks.
*/ */
MSI_FLAG_USE_DEF_CHIP_OPS = (1 << 1), 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 */ /* Support multiple PCI MSI interrupts */
MSI_FLAG_MULTI_PCI_MSI = (1 << 3), MSI_FLAG_MULTI_PCI_MSI = (1 << 2),
/* Support PCI MSIX interrupts */ /* 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, int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,

8
kernel/irq/msi.c
View File

@ -324,7 +324,7 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
struct msi_domain_ops *ops = info->ops; struct msi_domain_ops *ops = info->ops;
msi_alloc_info_t arg; msi_alloc_info_t arg;
struct msi_desc *desc; struct msi_desc *desc;
int i, ret, virq = -1; int i, ret, virq;
ret = msi_domain_prepare_irqs(domain, dev, nvec, &arg); ret = msi_domain_prepare_irqs(domain, dev, nvec, &arg);
if (ret) if (ret)
@ -332,12 +332,8 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
for_each_msi_entry(desc, dev) { for_each_msi_entry(desc, dev) {
ops->set_desc(&arg, desc); 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); dev_to_node(dev), &arg, false);
if (virq < 0) { if (virq < 0) {
ret = -ENOSPC; ret = -ENOSPC;