[DPDK/ethdev Bug 1511] net/tap build failure on Ubuntu 24.04 with LTO

[bugzilla@dpdk.org]

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https://bugs.dpdk.org/show_bug.cgi?id=1511

            Bug ID: 1511
           Summary: net/tap build failure on Ubuntu 24.04 with LTO
           Product: DPDK
           Version: 24.07
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: alialnu@nvidia.com
  Target Milestone: ---

$ meson --werror -Db_lto=true build && ninja -C build
[..]
[2109/2774] Linking target drivers/librte_net_tap.so.24.2
../drivers/net/tap/tap_netlink.c: In function ‘tap_flow_create_ipv6’:
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
[2755/2774] Linking target app/dpdk-test-pipeline
../drivers/net/tap/tap_netlink.c: In function ‘tap_flow_create_ipv6’:
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a region
of size 12 [-Wstringop-overflow=]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object ‘nh’ of size 16
[..]

OS: Ubuntu 24.04
Meson: 1.3.2
Compiler: gcc 13.2.0

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