[PATCH V5 0/1] xHCI: Supporting MSI/MSI-X

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This is the V5 for xHCI MSI/MSI-X patch.

diff from V4:
- Fixed warning message for legacy interrupt.
- Check the legacy INTx before free IRQ for MSI/MSI-X.
- Add the condition when the request_irq failed for MSI.  When the MSI
requests IRQ failed, the original PCI pin-based irq number could have
been given to a different device (see Documentation/PCI/MSI-HOWTO.txt,
section 4.2.3). Modified the patch to free_irq before trying to
enable MSI or MSI-X, and try to reallocate the interrupt if those fail.

Regards,
Dong



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