linux-hardening - [PATCH 050/141] RDMA/mlx5: Fix fall-through warnings for Clang

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Date:   Fri, 20 Nov 2020 12:31:49 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Leon Romanovsky <leon@...nel.org>,
        Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...pe.ca>
Cc:     linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: [PATCH 050/141] RDMA/mlx5: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding the new pseudo-keyword fallthrough; instead of
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
 drivers/infiniband/hw/mlx5/qp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 600e056798c0..ccaa4589331c 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2460,6 +2460,7 @@ static int check_qp_type(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr,
 	case IB_QPT_GSI:
 		if (dev->profile == &raw_eth_profile)
 			goto out;
+		fallthrough;
 	case IB_QPT_RAW_PACKET:
 	case IB_QPT_UD:
 	case MLX5_IB_QPT_REG_UMR:
-- 
2.27.0