[PATCH v3 07/15] blk-mq: remove unused queue mapping helpers

Daniel Wagner
2024-08-06T12:07:28Z

There are no users left of the pci and virtio queue mapping helpers.
Thus remove them.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
block/blk-mq-pci.c | 39 ---------------------------------------
block/blk-mq-virtio.c | 41 +----------------------------------------
include/linux/blk-mq-pci.h | 5 -----
include/linux/blk-mq-virtio.h | 5 -----
4 files changed, 1 insertion(+), 89 deletions(-)

diff --git a/block/blk-mq-pci.c b/block/blk-mq-pci.c
index 71a73238aeb2..b69dd52d8719 100644
--- a/block/blk-mq-pci.c
+++ b/block/blk-mq-pci.c
@@ -2,49 +2,10 @@
/*
* 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);
-
/**
* blk_mq_pci_get_queue_affinity - get affinity mask queue mapping for PCI device
* @dev_data: Pointer to struct pci_dev.
diff --git a/block/blk-mq-virtio.c b/block/blk-mq-virtio.c
index d3d33f8d69ce..0fd9f17a2f44 100644
--- a/block/blk-mq-virtio.c
+++ b/block/blk-mq-virtio.c
@@ -2,48 +2,9 @@
/*
* Copyright (c) 2016 Christoph Hellwig.
*/
-#include <linux/device.h>
#include <linux/blk-mq-virtio.h>
-#include <linux/virtio_config.h>
+#include <linux/virtio.h>
#include <linux/module.h>
-#include "blk-mq.h"
-
-/**
- * blk_mq_virtio_map_queues - provide a default queue mapping for virtio device
- * @qmap: CPU to hardware queue map.
- * @vdev: virtio device to provide a mapping for.
- * @first_vec: first interrupt vectors to use for queues (usually 0)
- *
- * This function assumes the virtio device @vdev 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_virtio_map_queues(struct blk_mq_queue_map *qmap,
- struct virtio_device *vdev, int first_vec)
-{
- const struct cpumask *mask;
- unsigned int queue, cpu;
-
- if (!vdev->config->get_vq_affinity)
- goto fallback;
-
- for (queue = 0; queue < qmap->nr_queues; queue++) {
- mask = vdev->config->get_vq_affinity(vdev, first_vec + queue);
- if (!mask)
- goto fallback;
-
- for_each_cpu(cpu, mask)
- qmap->mq_map[cpu] = qmap->queue_offset + queue;
- }
-
- return;
-
-fallback:
- blk_mq_map_queues(qmap);
-}
-EXPORT_SYMBOL_GPL(blk_mq_virtio_map_queues);

/**
* blk_mq_virtio_get_queue_affinity - get affinity mask queue mapping for virtio device
diff --git a/include/linux/blk-mq-pci.h b/include/linux/blk-mq-pci.h
index 2e701f6f6341..e6de88da8eea 100644
--- a/include/linux/blk-mq-pci.h
+++ b/include/linux/blk-mq-pci.h
@@ -2,11 +2,6 @@
#ifndef _LINUX_BLK_MQ_PCI_H
#define _LINUX_BLK_MQ_PCI_H

-struct blk_mq_queue_map;
-struct pci_dev;
-
-void blk_mq_pci_map_queues(struct blk_mq_queue_map *qmap, struct pci_dev *pdev,
- int offset);
const struct cpumask *blk_mq_pci_get_queue_affinity(void *dev_data, int offset,
int queue);

diff --git a/include/linux/blk-mq-virtio.h b/include/linux/blk-mq-virtio.h
index 9d3273ba4abf..de01dfb36c43 100644
--- a/include/linux/blk-mq-virtio.h
+++ b/include/linux/blk-mq-virtio.h
@@ -2,11 +2,6 @@
#ifndef _LINUX_BLK_MQ_VIRTIO_H
#define _LINUX_BLK_MQ_VIRTIO_H

-struct blk_mq_queue_map;
-struct virtio_device;
-
-void blk_mq_virtio_map_queues(struct blk_mq_queue_map *qmap,
- struct virtio_device *vdev, int first_vec);
const struct cpumask *blk_mq_virtio_get_queue_affinity(void *dev_data,
int offset,
int queue);

--
2.46.0