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Subject[PATCH 4.18 039/228] IB/mlx5: Fix GRE flow specification
Date
4.18-stable review patch.  If anyone has any objections, please let me know.

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

From: Maor Gottlieb <maorg@mellanox.com>

[ Upstream commit a93b632c4531ff50c43d658447a45cbc11f488fd ]

Currently the driver sets the mask of the gre_protocol to 0xffff
without consideration in the user request.

Fix it by copy the mask from the verbs spec.

Fixes: da2f22ae7707 ("IB/mlx5: Add support for GRE flow specification")
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/infiniband/hw/mlx5/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -2699,7 +2699,7 @@ static int parse_flow_attr(struct mlx5_c
IPPROTO_GRE);

MLX5_SET(fte_match_set_misc, misc_params_c, gre_protocol,
- 0xffff);
+ ntohs(ib_spec->gre.mask.protocol));
MLX5_SET(fte_match_set_misc, misc_params_v, gre_protocol,
ntohs(ib_spec->gre.val.protocol));


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