2021-05-09 08:32:37

by Wei Ming Chen

Subject: [PATCH] i40iw: Use fallthrough pseudo-keyword

Add pseudo-keyword macro fallthrough[1]

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Wei Ming Chen <[email protected]>
---
drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 1 +
drivers/infiniband/hw/i40iw/i40iw_uk.c | 1 +
2 files changed, 2 insertions(+)

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
index eaea5d545eb8..c6081283217c 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -2454,6 +2454,7 @@ static enum i40iw_status_code i40iw_sc_qp_init(struct i40iw_sc_qp *qp,
return ret_code;
break;
case 5: /* fallthrough until next ABI version */
+ fallthrough;
default:
if (qp->qp_uk.max_rq_frag_cnt > I40IW_MAX_WQ_FRAGMENT_COUNT)
return I40IW_ERR_INVALID_FRAG_COUNT;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c b/drivers/infiniband/hw/i40iw/i40iw_uk.c
index f521be16bf31..e1c318c291c0 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_uk.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c
@@ -1004,6 +1004,7 @@ enum i40iw_status_code i40iw_qp_uk_init(struct i40iw_qp_uk *qp,
i40iw_get_wqe_shift(info->max_rq_frag_cnt, 0, &rqshift);
break;
case 5: /* fallthrough until next ABI version */
+ fallthrough;
default:
rqshift = I40IW_MAX_RQ_WQE_SHIFT;
break;
--
2.25.1

2021-05-09 10:55:38

by Leon Romanovsky

Subject: Re: [PATCH] i40iw: Use fallthrough pseudo-keyword

On Sun, May 09, 2021 at 04:31:35PM +0800, Wei Ming Chen wrote:
> Add pseudo-keyword macro fallthrough[1]
>
> [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
>
> Signed-off-by: Wei Ming Chen <[email protected]>
> ---
> drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 1 +
> drivers/infiniband/hw/i40iw/i40iw_uk.c | 1 +
> 2 files changed, 2 insertions(+)

What exactly are you fixing?
"case" without any code doesn't need "fallthrough".

Thanks

>
> diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
> index eaea5d545eb8..c6081283217c 100644
> --- a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
> +++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
> @@ -2454,6 +2454,7 @@ static enum i40iw_status_code i40iw_sc_qp_init(struct i40iw_sc_qp *qp,
> return ret_code;
> break;
> case 5: /* fallthrough until next ABI version */
> + fallthrough;
> default:
> if (qp->qp_uk.max_rq_frag_cnt > I40IW_MAX_WQ_FRAGMENT_COUNT)
> return I40IW_ERR_INVALID_FRAG_COUNT;
> diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c b/drivers/infiniband/hw/i40iw/i40iw_uk.c
> index f521be16bf31..e1c318c291c0 100644
> --- a/drivers/infiniband/hw/i40iw/i40iw_uk.c
> +++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c
> @@ -1004,6 +1004,7 @@ enum i40iw_status_code i40iw_qp_uk_init(struct i40iw_qp_uk *qp,
> i40iw_get_wqe_shift(info->max_rq_frag_cnt, 0, &rqshift);
> break;
> case 5: /* fallthrough until next ABI version */
> + fallthrough;
> default:
> rqshift = I40IW_MAX_RQ_WQE_SHIFT;
> break;
> --
> 2.25.1
>