[ovs-git] [openvswitch/ovs] 8b3100: ovsdb-idlc: Use ALIGNED_CAST to avoid spurious war...

[GitHub]

  Branch: refs/heads/branch-2.10
  Home:   https://github.com/openvswitch/ovs
  Commit: 8b31008307bd9829c9d48c109f786dbe87cf6b24
      https://github.com/openvswitch/ovs/commit/8b31008307bd9829c9d48c109f786dbe87cf6b24
  Author: Ben Pfaff <blp at ovn.org>
  Date:   2018-09-17 (Mon, 17 Sep 2018)

  Changed paths:
    M ovsdb/ovsdb-idlc.in

  Log Message:
  -----------
  ovsdb-idlc: Use ALIGNED_CAST to avoid spurious warnings for index rows.

The *_index_init_row() function casts a generic ovsdb_idl_row pointer to
a specific type of row pointer.  This can cause an increase in required
alignment with some kinds of data on some architectures.  GCC complains,
e.g.:

    lib/vswitch-idl.c: In function 'ovsrec_flow_sample_collector_set_index_init_row'
    lib/vswitch-idl.c:9277:12: warning: cast increases required alignment of target

However, rows are always allocated with malloc(), which returns member
suitable for any type, so this is a false positive warning and this commit
suppresses it.

Signed-off-by: Ben Pfaff <blp at ovn.org>
Acked-by: Han Zhou <zhouhan at gmail.com>



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