[PATCH 0/6] fix pthread mutexes for multi-process

[Stephen Hemminger <stephen@networkplumber.org>]

Several drivers and the ethdev layer initialize pthread mutexes
in shared memory with default (process-private) attributes.
This is undefined behavior when secondary processes use them.

This series adds PTHREAD_PROCESS_SHARED to all affected mutexes.
All are on control paths (firmware mailbox, hotplug, flow ops,
PHY negotiation) where sleeping is acceptable.

See POSIX spec:
https://pubs.opengroup.org/onlinepubs/009696899/functions/pthread_mutexattr_getpshared.html

Bugzilla ID: 662

Stephen Hemminger (6):
  ethdev: fix flow_ops_mutex for multi-process
  net/failsafe: fix hotplug_mutex for multi-process
  net/atlantic: fix mbox_mutex for multi-process
  net/axgbe: fix mutexes for multi-process
  net/bnxt: fix mutexes for multi-process
  net/hinic: fix mutexes for multi-process

 drivers/net/atlantic/atl_ethdev.c      | 14 +++++++++++++-
 drivers/net/axgbe/axgbe_ethdev.c       | 19 +++++++++++++++----
 drivers/net/bnxt/bnxt_ethdev.c         | 11 ++++++-----
 drivers/net/bnxt/bnxt_txq.c            |  3 ++-
 drivers/net/bnxt/bnxt_util.c           | 13 +++++++++++++
 drivers/net/bnxt/bnxt_util.h           |  2 ++
 drivers/net/bnxt/tf_ulp/bnxt_ulp.c     |  2 +-
 drivers/net/bnxt/tf_ulp/bnxt_ulp_tf.c  |  2 +-
 drivers/net/bnxt/tf_ulp/bnxt_ulp_tfc.c |  2 +-
 drivers/net/failsafe/failsafe.c        | 15 ++++++++++++---
 drivers/net/hinic/base/hinic_compat.h  | 13 ++++++++++++-
 lib/ethdev/ethdev_driver.c             | 18 +++++++++++++++++-
 12 files changed, 95 insertions(+), 19 deletions(-)

-- 
2.53.0