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author | Jesse Brandeburg | 2015-11-18 15:47:06 -0800 |
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committer | Jeff Kirsher | 2015-12-03 13:43:06 -0800 |
commit | 8ddb33268902c80ecd9a0e1bc766a2dc4bc9fede (patch) | |
tree | d01fe095c8d1511a4cc7abaca47f07532eca2839 /Documentation/kernel-docs.txt | |
parent | 6e80a18c561485b5168a94b2637ceefb0133d4b5 (diff) |
i40e/i40evf: avoid mutex re-init
If the driver were to happen to have a mutex held while
the i40e_init_adminq call was called, the init_adminq might
inadvertently call mutex_init on a lock that was held
which is a violation of the calling semantics.
Fix this by avoiding adminq.c code allocating/freeing this memory, and
then do the same work only once in probe/remove.
Testing Hints (Required if no HSD): for VF, load i40evf in bare metal
and echo 32 > sriov_numvfs; echo 0 > sriov_numvfs in a loop. Yes this
is a horrible thing to do.
Change-ID: Ida263c51b34e195252179e7e5e400d73a99be7a2
Reported-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'Documentation/kernel-docs.txt')
0 files changed, 0 insertions, 0 deletions