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| author | Mitch Williams <mitch.a.williams@intel.com> | 2016-09-13 00:18:43 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-09-25 08:50:05 +0300 |
| commit | a4fa59cc5bb028ebb8048e8dcb6f92b2a1ea07f6 (patch) | |
| tree | 5f63446a5142d39d7707bacff267d89fd235ebdb /drivers/net/ethernet/intel | |
| parent | 1eb846ac90b956e52f4269d80f13cfbe1df6850b (diff) | |
| download | linux-a4fa59cc5bb028ebb8048e8dcb6f92b2a1ea07f6.tar.xz | |
i40e: don't configure zero-size RSS table
In some rare cases, we might get a VSI with no queues. In this case, we
cannot configure RSS on this VSI as it will try to divide by zero when
configuring the lookup table.
Change-ID: I6ae173a7dd3481a081e079eb10eb80275de2adb0
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index b434d07d98cd..8176596932be 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -8282,6 +8282,8 @@ static int i40e_pf_config_rss(struct i40e_pf *pf) if (!vsi->rss_size) vsi->rss_size = min_t(int, pf->alloc_rss_size, vsi->num_queue_pairs); + if (!vsi->rss_size) + return -EINVAL; lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); if (!lut) |