Re: linux-next: build warning after merge of the rdma tree

From: Doug Ledford
Date: Wed Feb 13 2019 - 19:21:09 EST

On Thu, 2019-02-14 at 11:18 +1100, Stephen Rothwell wrote:
> Hi all,
> After merging the rdma tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
> drivers/infiniband/hw/hfi1/qp.c: In function 'hfi1_setup_wqe':
> drivers/infiniband/hw/hfi1/qp.c:328:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> hfi1_setup_tid_rdma_wqe(qp, wqe);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/infiniband/hw/hfi1/qp.c:329:2: note: here
> case IB_QPT_UC:
> ^~~~
> Introduced by commit
> f1ab4efa6d32 ("IB/hfi1: Enable TID RDMA READ protocol")
> I get this warning because I am building with -Wimplicit-fallthrough
> in attempt to catch new additions early. The gcc warning can be turned
> off by adding a /* fall through */ comment at the point the fall through
> happens (assuming that the fall through is intentional).

Thanks Stephen, we'll sort it and make an appropriate fixup patch.


Doug Ledford <dledford@xxxxxxxxxx>
GPG KeyID: B826A3330E572FDD
Key fingerprint = AE6B 1BDA 122B 23B4 265B 1274 B826 A333 0E57 2FDD

Attachment: signature.asc
Description: This is a digitally signed message part