Re: [PATCH] IB/hfi1: Fix logical condition in msix_request_irq

[Dennis Dalessandro]

On 1/16/2020 5:26 PM, Nathan Chancellor wrote:
> Clang warns:
>
> drivers/infiniband/hw/hfi1/msix.c:136:22: warning: overlapping
> comparisons always evaluate to false [-Wtautological-overlap-compare]
>          if (type < IRQ_SDMA && type >= IRQ_OTHER)
>              ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
>
> It is impossible for something to be less than 0 (IRQ_SDMA) and greater
> than or equal to 3 (IRQ_OTHER) at the same time. A logical OR should
> have been used to keep the same logic as before.
>
> Link: https://github.com/ClangBuiltLinux/linux/issues/841
> Fixes: 13d2a8384bd9 ("IB/hfi1: Decouple IRQ name from type")
> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>

Acked-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>