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| author |   Mark Rustad <mark.d.rustad@intel.com> | 2014-03-01 05:21:00 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-03-21 01:46:03 -0700 |
| commit | 19458bd425c0ee21bb35958c60d3682f9c42f274 (patch) | |
| tree | 928db2c9f651913dd938de90445f19d14ce00ffe /drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | |
| parent | i40evf: clean up init error messages (diff) | |
| download | linux-dev-19458bd425c0ee21bb35958c60d3682f9c42f274.tar.xz linux-dev-19458bd425c0ee21bb35958c60d3682f9c42f274.zip | |
ixgbe: Break recursion in case of removal
When an adapter is removed and registers all read as all one's,
an infinite recursion can happen between ixgbe_clear_vmdq_generic
and ixgbe_clear_rar_generic. Adding a check for removal breaks
this recursion.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c index 911b711b6ba1..24fba39e194e 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c @@ -2913,6 +2913,9 @@ s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq) mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar)); mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar)); + if (ixgbe_removed(hw->hw_addr)) + goto done; + if (!mpsar_lo && !mpsar_hi) goto done; |