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IB/core: Do not notify GID change event of an unregistered device

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When IB device is undergoing unregistration, the GID cache is always
cleaned up after all clients are unregistered with the below flow.

__ib_unregister_device()
  disable_device()
  ib_cache_cleanup_one()
    gid_table_cleanup_one()
      cleanup_gid_table_port()

There is no use in generating a GID change event at this stage, where
there is no active client of the device and device is nearly unregistered.

Link: https://lore.kernel.org/r/20191020065427.8772-4-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2019-10-20 09:54:27 +03:00 committed by Jason Gunthorpe
parent 3f89b01f4b
commit c4c8aff5a9
1 changed files with 1 additions and 7 deletions
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8
drivers/infiniband/core/cache.c
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@ -819,22 +819,16 @@ static void cleanup_gid_table_port(struct ib_device *ib_dev, u8 port,
struct ib_gid_table *table)
{
int i;
bool deleted = false;
if (!table)
return;
mutex_lock(&table->lock);
for (i = 0; i < table->sz; ++i) {
if (is_gid_entry_valid(table->data_vec[i])) {
if (is_gid_entry_valid(table->data_vec[i]))
del_gid(ib_dev, port, table, i);
deleted = true;
}
}
mutex_unlock(&table->lock);
if (deleted)
dispatch_gid_change_event(ib_dev, port);
}
void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,