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| author | Christoph Hellwig <hch@lst.de> | 2016-10-18 09:00:52 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-10-19 13:18:16 -0400 |
| commit | 17a51f12cfbd2814fd35966a069b242569c53e27 (patch) | |
| tree | ac00dfa3303d195b0dd8929d3f6c9c585b021351 /Documentation/devicetree | |
| parent | 1001354ca34179f3db924eb66672442a173147dc (diff) | |
ahci: only try to use multi-MSI mode if there is more than 1 port
We should only try to allocate multiple MSI or MSI-X vectors if the device
actually has multiple ports. Otherwise pci_alloc_irq_vectors will return
a single vector due to n_ports = 1, in which case we shouldn't set the
AHCI_HFLAG_MULTI_MSI flag.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Fixes: 0b9e2988 ("ahci: use pci_alloc_irq_vectors")
Reported-by: Emmanuel Benisty <benisty.e@gmail.com>
Tested-by: Emmanuel Benisty <benisty.e@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
0 files changed, 0 insertions, 0 deletions