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iavf: Fix for setting queues to 0

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[ Upstream commit 9a6e9e483a9684a34573fd9f9e30ecfb047cb8cb ]

Now setting combine to 0 will be rejected with the
appropriate error code.
This has been implemented by adding a condition that checks
the value of combine equal to zero.
Without this patch, when the user requested it, no error was
returned and combine was set to the default value for VF.

Fixes: 5520deb15326 ("iavf: Enable support for up to 16 queues")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Grzegorz Szczurek 2021-06-04 09:49:00 -07:00 committed by Greg Kroah-Hartman
parent 366c1fd416
commit cbb81563f5
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/iavf/iavf_ethtool.c
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@ -1787,7 +1787,7 @@ static int iavf_set_channels(struct net_device *netdev,
/* All of these should have already been checked by ethtool before this
* even gets to us, but just to be sure.
*/
if (num_req > adapter->vsi_res->num_queue_pairs)
if (num_req == 0 || num_req > adapter->vsi_res->num_queue_pairs)
return -EINVAL;
if (num_req == adapter->num_active_queues)