On 8/29/2017 1:34 PM, Roland Dreier wrote:
> From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
>
> For RoCE, ib_init_ah_from_wc() can follow the path
>
> ib_init_ah_from_wc() ->
> rdma_addr_find_l2_eth_by_grh() ->
> rdma_resolve_ip()
>
> and rdma_resolve_ip() will sleep in kzalloc() and wait_for_completion().
>
> However, developers will not see any warnings if they use ib_init_ah_from_wc()
> in an atomic context and test only on IB, because the function doesn't
> sleep in that case.
>
> Add a might_sleep() so that lockdep will catch bugs no matter what hardware is
> used to test.
>
> Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Thanks, will pick this up today too.
--
Doug Ledford <dledford@xxxxxxxxxx>
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