Re: [PATCH for-next] RDMA/rxe: Fix incorrect return value of rxe_odp_atomic_op()

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On Thu, Mar 13, 2025 at 03:45:40PM +0900, Daisuke Matsuda wrote:
> rxe_mr_do_atomic_op() returns enum resp_states numbers, so the ODP
> counterpart must not return raw errno codes.
> 
> Signed-off-by: Daisuke Matsuda <matsuda-daisuke@xxxxxxxxxxx>
> ---
>  drivers/infiniband/sw/rxe/rxe_odp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/infiniband/sw/rxe/rxe_odp.c b/drivers/infiniband/sw/rxe/rxe_odp.c
> index 94f7bbe14981..9f6e2bb2a269 100644
> --- a/drivers/infiniband/sw/rxe/rxe_odp.c
> +++ b/drivers/infiniband/sw/rxe/rxe_odp.c
> @@ -316,7 +316,7 @@ int rxe_odp_atomic_op(struct rxe_mr *mr, u64 iova, int opcode,
>  	err = rxe_odp_map_range_and_lock(mr, iova, sizeof(char),
>  					 RXE_PAGEFAULT_DEFAULT);
>  	if (err < 0)
> -		return err;
> +		return RESPST_ERR_RKEY_VIOLATION;

I applied this patch for now, but please work to remove enum
resp_states. It is very bad practice to hide original in-kernel errors.

thanks

>  
>  	err = rxe_odp_do_atomic_op(mr, iova, opcode, compare, swap_add,
>  				   orig_val);
> -- 
> 2.43.0
> 




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