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-rw-r--r--block/blk-mq-pci.c46
1 files changed, 0 insertions, 46 deletions
diff --git a/block/blk-mq-pci.c b/block/blk-mq-pci.c
deleted file mode 100644
index d47b5c73c9eb..000000000000
--- a/block/blk-mq-pci.c
+++ /dev/null
@@ -1,46 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2016 Christoph Hellwig.
- */
-#include <linux/kobject.h>
-#include <linux/blkdev.h>
-#include <linux/blk-mq-pci.h>
-#include <linux/pci.h>
-#include <linux/module.h>
-
-#include "blk-mq.h"
-
-/**
- * blk_mq_pci_map_queues - provide a default queue mapping for PCI device
- * @qmap: CPU to hardware queue map.
- * @pdev: PCI device associated with @set.
- * @offset: Offset to use for the pci irq vector
- *
- * This function assumes the PCI device @pdev has at least as many available
- * interrupt vectors as @set has queues. It will then query the vector
- * corresponding to each queue for it's affinity mask and built queue mapping
- * that maps a queue to the CPUs that have irq affinity for the corresponding
- * vector.
- */
-void blk_mq_pci_map_queues(struct blk_mq_queue_map *qmap, struct pci_dev *pdev,
- int offset)
-{
- const struct cpumask *mask;
- unsigned int queue, cpu;
-
- for (queue = 0; queue < qmap->nr_queues; queue++) {
- mask = pci_irq_get_affinity(pdev, queue + offset);
- if (!mask)
- goto fallback;
-
- for_each_cpu(cpu, mask)
- qmap->mq_map[cpu] = qmap->queue_offset + queue;
- }
-
- return;
-
-fallback:
- WARN_ON_ONCE(qmap->nr_queues > 1);
- blk_mq_clear_mq_map(qmap);
-}
-EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues);