linux-kernel - Re: [PATCH] IB/hfi1: Add missing break in switch statement

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Date:   Thu, 21 Feb 2019 14:09:02 -0700
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     Kaike Wan <kaike.wan@...el.com>,
        Mike Marciniszyn <mike.marciniszyn@...el.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        Doug Ledford <dledford@...hat.com>, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org, Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH] IB/hfi1: Add missing break in switch statement

On Wed, Feb 20, 2019 at 07:02:33PM -0600, Gustavo A. R. Silva wrote:
> Fix the following warning by adding a missing break:
> 
> drivers/infiniband/hw/hfi1/tid_rdma.c: In function ‘hfi1_tid_rdma_wqe_interlock’:
> drivers/infiniband/hw/hfi1/tid_rdma.c:3251:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    switch (prev->wr.opcode) {
>    ^~~~~~
> drivers/infiniband/hw/hfi1/tid_rdma.c:3259:2: note: here
>   case IB_WR_RDMA_READ:
>   ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Fixes: c6c231175ccd ("IB/hfi1: Add interlock between TID RDMA WRITE and other requests")
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> Reviewed-by: Kaike Wan <Kaike.wan@...el.com>
> --
>  drivers/infiniband/hw/hfi1/tid_rdma.c | 1 +
>  1 file changed, 1 insertion(+)

Applied to for-next, thanks

Jason