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net/mlx5e: Initialize on stack link modes bitmap

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Initialize link modes bitmap on stack before using it, otherwise the
outcome of ethtool set link ksettings might have unexpected values.

Fixes: 4b95840a6c ("net/mlx5e: Fix matching of speed to PRM link modes")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Aya Levin 2019-10-23 12:57:54 +03:00 committed by Saeed Mahameed
parent 534e7366f4
commit 926b37f76f
1 changed files with 1 additions and 1 deletions
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drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
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@ -1021,7 +1021,7 @@ static bool ext_link_mode_requested(const unsigned long *adver)
{
#define MLX5E_MIN_PTYS_EXT_LINK_MODE_BIT ETHTOOL_LINK_MODE_50000baseKR_Full_BIT
int size = __ETHTOOL_LINK_MODE_MASK_NBITS - MLX5E_MIN_PTYS_EXT_LINK_MODE_BIT;
__ETHTOOL_DECLARE_LINK_MODE_MASK(modes);
__ETHTOOL_DECLARE_LINK_MODE_MASK(modes) = {0,};
bitmap_set(modes, MLX5E_MIN_PTYS_EXT_LINK_MODE_BIT, size);
return bitmap_intersects(modes, adver, __ETHTOOL_LINK_MODE_MASK_NBITS);