Commit-ID:  b6140914fd079e43ea75a53429b47128584f033a
Gitweb:     http://git.kernel.org/tip/b6140914fd079e43ea75a53429b47128584f033a
Author:     Thomas Gleixner <t...@linutronix.de>
AuthorDate: Mon, 4 Jul 2016 17:39:22 +0900
Committer:  Thomas Gleixner <t...@linutronix.de>
CommitDate: Mon, 4 Jul 2016 12:25:12 +0200

genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP

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

Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Reviewed-by: Bart Van Assche <bart.vanass...@sandisk.com>
Cc: Christoph Hellwig <h...@lst.de>
Cc: linux-bl...@vger.kernel.org
Cc: linux-...@vger.kernel.org
Cc: linux-n...@lists.infradead.org
Cc: ax...@fb.com
Cc: agord...@redhat.com
Link: http://lkml.kernel.org/r/1467621574-8277-2-git-send-email-...@lst.de
Signed-off-by: Thomas Gleixner <t...@linutronix.de>

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

diff --git a/include/linux/msi.h b/include/linux/msi.h
index 8b425c6..c33abfa 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -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,
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 38e89ce..eb5bf2b 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -324,7 +324,7 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct 
device *dev,
        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_domain *domain, 
struct device *dev,
 
        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;

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