[PATCH 0/7] ibmvnic: Use more consistent locking
flat view
STALE2115d
SUPERSEDED
From: Sukadev Bhattiprolu <hidden>
Date: 2021-01-08 07:13:39
Subsystem:
ibm power sriov virtual nic device driver, linux for powerpc (32-bit and 64-bit), networking drivers, the rest · Maintainers:
Haren Myneni, Rick Lindsley, Madhavan Srinivasan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Status: Superseded by v2 (posted 2021-01-12). [go to v2]
Revision v1 (2 revisions archived).
Revisions (2)
- v1 current
- v2 [diff against previous]
Use more consistent locking when reading/writing the adapter->state field. This patch set fixes a race condition during ibmvnic_open() where the adapter could be left in the PROBED state if a reset occurs at the wrong time. This can cause networking to not come up during boot and potentially require manual intervention in bringing up applications that depend on the network. Sukadev Bhattiprolu (7): ibmvnic: restore state in change-param reset ibmvnic: update reset function prototypes ibmvnic: avoid allocating rwi entries ibmvnic: switch order of checks in ibmvnic_reset ibmvnic: use a lock to serialize remove/reset ibmvnic: check adapter->state under state_lock ibmvnic: add comments about adapter->state_lock drivers/net/ethernet/ibm/ibmvnic.c | 351 ++++++++++++++++++++--------- drivers/net/ethernet/ibm/ibmvnic.h | 70 +++++- 2 files changed, 308 insertions(+), 113 deletions(-) -- 2.26.2