kernel test robot <lkp@xxxxxxxxx> writes:
[+ io_uring list ]
>>> io_uring/register.c:175:24: warning: arithmetic between different
> enumeration types ('enum io_uring_register_restriction_op' and 'enum
> io_uring_register_op') [-Wenum-enum-conversion]
> 175 | if (!arg || nr_args > IORING_MAX_RESTRICTIONS)
> | ^~~~~~~~~~~~~~~~~~~~~~~
> io_uring/register.c:31:58: note: expanded from macro 'IORING_MAX_RESTRICTIONS'
> 31 | #define IORING_MAX_RESTRICTIONS (IORING_RESTRICTION_LAST + \
> | ~~~~~~~~~~~~~~~~~~~~~~~ ^
> 32 | IORING_REGISTER_LAST + IORING_OP_LAST)
> | ~~~~~~~~~~~~~~~~~~~~
> 14 warnings generated.
hm.
Do we want to fix? The arithmetic is safe here. I actually tried
triggering the warning with gcc, but even with -Wenum-conversion in
gcc-12 (which is in -Wextra and we don't use in the kernel build), I
couldn't do it. only llvm catches this.
can we explicit cast to int to silent it?
--
Gabriel Krisman Bertazi
