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Some devices use 255 as default value of Interrupt Line register, and this maybe causes pdev->irq is set as IRQ_NOTCONNECTED in some scenarios. For example, NVMe controller connects to Intel Volume Management Device (VMD). In this situation, IRQ_NOTCONNECTED means INTx line is not connected, not fault. If bind uio_pci_generic to these devices, uio frame will return -ENOTCONN through request_irq. This patch allows binding uio_pci_generic to device with dev->irq of IRQ_NOTCONNECTED. Acked-by: Kyungsan Kim <ks0204.kim@samsung.com> Signed-off-by: Jie Li <jie6.li@samsung.com> Link: https://lore.kernel.org/r/1612153559-17028-1-git-send-email-jie6.li@samsung.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| uio_aec.c | ||
| uio_cif.c | ||
| uio_dmem_genirq.c | ||
| uio_fsl_elbc_gpcm.c | ||
| uio_hv_generic.c | ||
| uio_mf624.c | ||
| uio_netx.c | ||
| uio_pci_generic.c | ||
| uio_pdrv_genirq.c | ||
| uio_pruss.c | ||
| uio_sercos3.c | ||
| uio.c | ||