Problems with uio_pci_generic in v4.18-rc8

[Harris, James R]

Hi,
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Using Linux kernel v4.18-rc8, I am unable to bind a PCI device to uio_pci_generic.ÂÂThis works fine with v4.18-rc4.ÂÂdmesg shows:
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[ÂÂ336.221585] genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq 33
[ÂÂ336.221681] uio_pci_generic: probe of 0000:04:00.0 failed with error -22
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This problem has been reproduced on multiple systems.
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This seems to be related to commit 9421e45f5 (âuio: use request_threaded_irq insteadâ) which was merged in -rc5.ÂÂReverting this commit fixes the issue (I also reverted 543af5861f and 57c5f4df0a which also touch uio.c - just to be safe).
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This seems like a serious regression to uio_pci_generic, but any tips or pointers would be appreciated.
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Thanks,
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Jim Harris