[tip:irq/core] genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP

From: tip-bot for Thomas Gleixner
Date: Mon Jul 04 2016 - 06:32:25 EST


Commit-ID: b6140914fd079e43ea75a53429b47128584f033a
Gitweb: http://git.kernel.org/tip/b6140914fd079e43ea75a53429b47128584f033a
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Mon, 4 Jul 2016 17:39:22 +0900
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
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 <tglx@xxxxxxxxxxxxx>
Reviewed-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: linux-block@xxxxxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linux-nvme@xxxxxxxxxxxxxxxxxxx
Cc: axboe@xxxxxx
Cc: agordeev@xxxxxxxxxx
Link: http://lkml.kernel.org/r/1467621574-8277-2-git-send-email-hch@xxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

---
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;