UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Mark Rustad 2014-03-01 05:21:00 +00:00 committed by Jeff Kirsher
parent 10bdd67b4a
commit 19458bd425
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
View File

@ -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;