07/07/2026 16:01, Alexey Simakov:
> The literal '1' is a signed 32-bit int. Shifting it by bar->bitsize
> is undefined behavior when bitsize >= 31, and sign-extends when
> bitsize == 31 (producing a wrong upper-bound check). BAR aperture
> sizes from hardware can exceed this range.
>
> Fix by using RTE_BIT64() which produces a 64-bit unsigned value,
> matching the type of the operands (uint64_t base, uint64_t offset).
>
> Fixes: c7e9729da6b5 ("net/nfp: support CPP")
> Fixes: 1fbe51cd9c3a ("net/nfp: extend usage of BAR from 8 to 24")
> Cc: [email protected]
>
> Signed-off-by: Alexey Simakov <[email protected]>
Applied, thanks.
