Re: [PATCH 027/141] drbd: Fix fall-through warnings for Clang

From: Gustavo A. R. Silva
Date: Tue Apr 20 2021 - 16:25:51 EST


Hi all,

Friendly ping: who can take this, please?

Thanks
--
Gustavo

On 11/20/20 12:28, Gustavo A. R. Silva wrote:
> In preparation to enable -Wimplicit-fallthrough for Clang, fix a couple
> of warnings by explicitly adding a break statement instead of just
> letting the code fall through to the next, and by adding a fallthrough
> pseudo-keyword in places whre the code is intended to fall through.
>
> Link: https://github.com/KSPP/linux/issues/115
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
> ---
> drivers/block/drbd/drbd_receiver.c | 1 +
> drivers/block/drbd/drbd_req.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
> index dc333dbe5232..c19bb74ac935 100644
> --- a/drivers/block/drbd/drbd_receiver.c
> +++ b/drivers/block/drbd/drbd_receiver.c
> @@ -5863,6 +5863,7 @@ static int got_NegRSDReply(struct drbd_connection *connection, struct packet_inf
> switch (pi->cmd) {
> case P_NEG_RS_DREPLY:
> drbd_rs_failed_io(device, sector, size);
> + break;
> case P_RS_CANCEL:
> break;
> default:
> diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
> index 330f851cb8f0..9f212a923a3c 100644
> --- a/drivers/block/drbd/drbd_req.c
> +++ b/drivers/block/drbd/drbd_req.c
> @@ -750,6 +750,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
>
> case WRITE_ACKED_BY_PEER_AND_SIS:
> req->rq_state |= RQ_NET_SIS;
> + fallthrough;
> case WRITE_ACKED_BY_PEER:
> /* Normal operation protocol C: successfully written on peer.
> * During resync, even in protocol != C,
>