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| author | Alex Shi <alex.shi@linaro.org> | 2017-09-24 22:45:01 -0700 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2017-09-24 22:45:01 -0700 |
| commit | 1cfb9d628fa24c0a8b24cd604ae62dfa10a0d716 (patch) | |
| tree | 4e57e7465ce5fbc2a6cc838fd78e5e8a2b9799ff /block/blk-mq-pci.c | |
| parent | d595150285cf886cf2399fd74b0eeb43b444c706 (diff) | |
| parent | 7ecc9777c5c76d7b31c376ffd4f59c4a85472a1b (diff) | |
Merge branch 'linux-linaro-lsk-v4.9' into v4.9/topic/ionv4.9/topic/ion
Diffstat (limited to 'block/blk-mq-pci.c')
| -rw-r--r-- | block/blk-mq-pci.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/block/blk-mq-pci.c b/block/blk-mq-pci.c index 966c2169762e..ee9d3d958fbe 100644 --- a/block/blk-mq-pci.c +++ b/block/blk-mq-pci.c @@ -36,12 +36,18 @@ int blk_mq_pci_map_queues(struct blk_mq_tag_set *set, struct pci_dev *pdev) for (queue = 0; queue < set->nr_hw_queues; queue++) { mask = pci_irq_get_affinity(pdev, queue); if (!mask) - return -EINVAL; + goto fallback; for_each_cpu(cpu, mask) set->mq_map[cpu] = queue; } return 0; + +fallback: + WARN_ON_ONCE(set->nr_hw_queues > 1); + for_each_possible_cpu(cpu) + set->mq_map[cpu] = 0; + return 0; } EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues); |