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.
Changelog[v2] [Address comments from Jakub Kicinski]
- Fix up commit log for patch 5/7 and drop unnecessary variable
- Format Fixes line properly (no wrapping, no blank lines)
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: serialize access to work queue
ibmvnic: check adapter->state under state_lock
ibmvnic: add comments about state_lock
drivers/net/ethernet/ibm/ibmvnic.c | 347 ++++++++++++++++++++---------
drivers/net/ethernet/ibm/ibmvnic.h | 70 +++++-
2 files changed, 306 insertions(+), 111 deletions(-)
--
2.26.2
