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[81.108.45.148]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4873bbcac33sm118488235e9.15.2026.03.30.18.28.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Mar 2026 18:28:15 -0700 (PDT) From: Prathamesh Deshpande To: Leon Romanovsky , Jason Gunthorpe Cc: Haggai Eran , Doug Ledford , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Prathamesh Deshpande Subject: [PATCH] IB/mlx5: Clarify success return path in mlx5_ib_alloc_transport_domain Date: Tue, 31 Mar 2026 02:28:06 +0100 Message-ID: <20260331012806.10077-1-prathameshdeshpande7@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In mlx5_ib_alloc_transport_domain(), the function returns 'err' if loopback enablement is skipped. At this point, 'err' is always 0 because the preceding transport domain allocation succeeded. Smatch warns that this is a "missing error code" because returning a variable instead of a literal 0 in an early-exit path is ambiguous. Explicitly return 0 to clarify that this is an intentional success path and to improve code robustness. Signed-off-by: Prathamesh Deshpande --- drivers/infiniband/hw/mlx5/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5= /main.c index 635002e684a5..ae4c8ed1c87d 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -2068,7 +2068,7 @@ static int mlx5_ib_alloc_transport_domain(struct mlx5= _ib_dev *dev, u32 *tdn, if ((MLX5_CAP_GEN(dev->mdev, port_type) !=3D MLX5_CAP_PORT_TYPE_ETH) || (!MLX5_CAP_GEN(dev->mdev, disable_local_lb_uc) && !MLX5_CAP_GEN(dev->mdev, disable_local_lb_mc))) - return err; + return 0; =20 return mlx5_ib_enable_lb(dev, true, false); } --=20 2.43.0