[PATCH v2 00/17] use __atomic operations returning previous value

[Tyler Retzlaff]

This series replaces uses of __atomic_{add,and,or,sub,xor}_fetch with
__atomic_fetch_{add,and,or,sub,xor} intrinsics.  The latter omits generation
of code that is only needed if the returned value is actually used.

Additionally, this change simplifies adapting dpdk to standard atomics
planned for 23.07 since __atomic_fetch_xxx can be trivially replaced with
atomic_fetch_xxx whereas __atomic_xxx_fetch has no standard equivalent.


v2:
  net/iavf patch had one incorrect change to __atomic_fetch_sub
  from __atomic_sub_fetch the new value was assigned to a variable
  on the previous line so revert the change from the patch.

Series-acked-by: Morten Brørup <mb at smartsharesystems.com>

Tyler Retzlaff (17):
  vhost: use previous value atomic fetch operations
  telemetry: use previous value atomic fetch operations
  stack: use previous value atomic fetch operations
  eal: use previous value atomic fetch operations
  distributor: use previous value atomic fetch operations
  bbdev: use previous value atomic fetch operations
  examples/vhost: use previous value atomic fetch operations
  net/virtio: use previous value atomic fetch operations
  net/octeontx: use previous value atomic fetch operations
  net/mlx5: use previous value atomic fetch operations
  net/iavf: use previous value atomic fetch operations
  net/cxgbe: use previous value atomic fetch operations
  drivers/event: use previous value atomic fetch operations
  dma/skeleton: use previous value atomic fetch operations
  drivers/common: use previous value atomic fetch operations
  app/test: use previous value atomic fetch operations
  test-eventdev: use previous value atomic fetch operations

 app/test-eventdev/test_order_common.h            |  2 +-
 app/test/test_lcores.c                           |  2 +-
 app/test/test_service_cores.c                    |  4 ++--
 drivers/common/cnxk/roc_nix_inl_dev.c            |  2 +-
 drivers/common/mlx5/mlx5_common_mr.c             |  2 +-
 drivers/common/mlx5/mlx5_common_utils.c          | 10 +++++-----
 drivers/common/mlx5/mlx5_malloc.c                | 16 ++++++++--------
 drivers/dma/skeleton/skeleton_dmadev.c           |  2 +-
 drivers/event/cnxk/cnxk_eventdev_selftest.c      | 12 ++++++------
 drivers/event/cnxk/cnxk_tim_worker.h             |  6 +++---
 drivers/event/dsw/dsw_event.c                    |  6 +++---
 drivers/event/octeontx/timvf_worker.h            |  6 +++---
 drivers/net/cxgbe/clip_tbl.c                     |  2 +-
 drivers/net/cxgbe/cxgbe_main.c                   | 12 ++++++------
 drivers/net/cxgbe/l2t.c                          |  4 ++--
 drivers/net/cxgbe/mps_tcam.c                     |  2 +-
 drivers/net/cxgbe/smt.c                          |  4 ++--
 drivers/net/iavf/iavf_vchnl.c                    |  4 ++--
 drivers/net/mlx5/linux/mlx5_verbs.c              |  2 +-
 drivers/net/mlx5/mlx5_flow.c                     |  6 +++---
 drivers/net/mlx5/mlx5_flow_dv.c                  |  4 ++--
 drivers/net/mlx5/mlx5_flow_flex.c                |  6 +++---
 drivers/net/mlx5/mlx5_flow_hw.c                  | 10 +++++-----
 drivers/net/mlx5/mlx5_flow_meter.c               | 20 ++++++++++----------
 drivers/net/mlx5/mlx5_rx.h                       |  2 +-
 drivers/net/octeontx/octeontx_ethdev.c           |  2 +-
 drivers/net/virtio/virtio_user/virtio_user_dev.c |  2 +-
 examples/vhost/main.c                            | 12 ++++++------
 examples/vhost/virtio_net.c                      |  4 ++--
 lib/bbdev/rte_bbdev.c                            |  2 +-
 lib/distributor/rte_distributor.c                |  2 +-
 lib/eal/common/eal_common_trace.c                |  8 ++++----
 lib/eal/common/rte_service.c                     |  8 ++++----
 lib/eal/ppc/include/rte_atomic.h                 | 16 ++++++++--------
 lib/stack/rte_stack_lf_c11.h                     |  2 +-
 lib/telemetry/telemetry.c                        |  6 +++---
 lib/vhost/virtio_net.c                           |  6 +++---
 37 files changed, 109 insertions(+), 109 deletions(-)

-- 
1.8.3.1