linux-kernel - [PATCH 4.5 03/88] net/mlx5_core: Fix caching ATOMIC endian mode capability

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Message-Id: <20160509071952.300673117@linuxfoundation.org>
Date:	Mon,  9 May 2016 09:20:52 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Leon Romanovsky <leonro@...lanox.com>,
	Saeed Mahameed <saeedm@...lanox.com>,
	Doug Ledford <dledford@...hat.com>
Subject: [PATCH 4.5 03/88] net/mlx5_core: Fix caching ATOMIC endian mode capability

4.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Leon Romanovsky <leonro@...lanox.com>

commit 91d9ed8443b88cc50b81cf5ec900172515270f6f upstream.

Add caching of maximum device capability of ATOMIC endian mode.

Fixes: f91e6d8941bf ('net/mlx5_core: Add setting ATOMIC endian mode')
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
Reviewed-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Doug Ledford <dledford@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/ethernet/mellanox/mlx5/core/main.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -423,6 +423,10 @@ static int handle_hca_cap_atomic(struct
 					 HCA_CAP_OPMOD_GET_CUR);
 		if (err)
 			return err;
+		err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC,
+					 HCA_CAP_OPMOD_GET_MAX);
+		if (err)
+			return err;
 	} else {
 		return 0;
 	}