Re: [PATCH] RDMA/siw: Mark expected switch fall-throughs

[Jason Gunthorpe <jgg@ziepe.ca>]

On Thu, Jul 11, 2019 at 11:12:18AM -0500, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warnings:
> 
> drivers/infiniband/sw/siw/siw_qp_rx.c: In function ‘siw_rdmap_complete’:
> drivers/infiniband/sw/siw/siw_qp_rx.c:1214:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    wqe->rqe.flags |= SIW_WQE_SOLICITED;
>    ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
> drivers/infiniband/sw/siw/siw_qp_rx.c:1215:2: note: here
>   case RDMAP_SEND:
>   ^~~~
> 
> drivers/infiniband/sw/siw/siw_qp_tx.c: In function ‘siw_qp_sq_process’:
> drivers/infiniband/sw/siw/siw_qp_tx.c:1044:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     siw_wqe_put_mem(wqe, tx_type);
>     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/infiniband/sw/siw/siw_qp_tx.c:1045:3: note: here
>    case SIW_OP_INVAL_STAG:
>    ^~~~
> drivers/infiniband/sw/siw/siw_qp_tx.c:1128:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     siw_wqe_put_mem(wqe, tx_type);
>     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/infiniband/sw/siw/siw_qp_tx.c:1129:3: note: here
>    case SIW_OP_INVAL_STAG:
>    ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> 
> NOTE: -Wimplicit-fallthrough will be enabled globally in v5.3. So, I
>       suggest you to take this patch for 5.3-rc1.

Okay, I queued this for the current merge window then

Jason