On 64bit arches, struct u64_stats_sync is empty and provides no help
against load/store tearing. memcpy() and struct copying should not be
considered tear-free. Use u64_stats_reads() instead.

v1: https://lore.kernel.org/r/20260120092137.2161162-1-mmyangfl@gmail.com
  - rename to u64_stats_reads() to clarify data flow direction
  - refine the implementation
  - add docs
  - fix struct copying too

David Yang (7):
  u64_stats: Introduce u64_stats_reads()
  u64_stats: Doc incorrect usage with plain variables
  net: bridge: mcast: fix memcpy with u64_stats
  net: openvswitch: fix load tearing with u64_stats
  macsec: fix memcpy with u64_stats
  mpls: Fix load tearing with u64_stats
  vxlan: vnifilter: fix memcpy with u64_stats

 drivers/net/macsec.c                |  6 ++--
 drivers/net/vxlan/vxlan_vnifilter.c |  2 +-
 include/linux/u64_stats_sync.h      | 56 ++++++++++++++++++++++++-----
 net/bridge/br_multicast.c           |  2 +-
 net/mpls/af_mpls.c                  |  2 +-
 net/openvswitch/datapath.c          |  3 +-
 6 files changed, 55 insertions(+), 16 deletions(-)

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2.51.0