Rana Shahout 5283af899a
net/mlx5e: Avoid accessing NULL pointer at ndo_select_queue ...
To avoid multiply/division operations on the data path,
we hold a {channel, tc}==>txq mapping table.
We held this mapping table inside the channel object that is
being destroyed upon some configuration operations (e.g MTU change).
So in case ndo_select_queue occurs during such a configuration operation,
it may access a NULL channel pointer, resulting in kernel panic.
To fix this issue we moved the {channel, tc}==>txq mapping table
outside the channel object so that it will be available also
during such configuration operations.
Signed-off-by: Rana Shahout <ranas@mellanox.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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5283af899a