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From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [DPDK/ethdev Bug 1511] net/tap build failure on Ubuntu 24.04 with LTO
Date: Sun, 04 Aug 2024 20:56:51 +0000
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X-Bugzilla-Component: ethdev
X-Bugzilla-Version: 24.07
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--17228050110.d954af2Ac.1569207
Date: Sun, 4 Aug 2024 22:56:51 +0200
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https://bugs.dpdk.org/show_bug.cgi?id=3D1511

            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=3Dtrue build && ninja -C build
[..]
[2109/2774] Linking target drivers/librte_net_tap.so.24.2
../drivers/net/tap/tap_netlink.c: In function =E2=80=98tap_flow_create_ipv6=
=E2=80=99:
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
[2755/2774] Linking target app/dpdk-test-pipeline
../drivers/net/tap/tap_netlink.c: In function =E2=80=98tap_flow_create_ipv6=
=E2=80=99:
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
[..]

OS: Ubuntu 24.04
Meson: 1.3.2
Compiler: gcc 13.2.0

--=20
You are receiving this mail because:
You are the assignee for the bug.=

--17228050110.d954af2Ac.1569207
Date: Sun, 4 Aug 2024 22:56:51 +0200
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<html>
    <head>
      <base href=3D"https://bugs.dpdk.org/">
    </head>
    <body><table border=3D"1" cellspacing=3D"0" cellpadding=3D"8" class=3D"=
bz_new_table">
        <tr>
          <th>Bug ID</th>
          <td><a class=3D"bz_bug_link=20
          bz_status_UNCONFIRMED "
   title=3D"UNCONFIRMED - net/tap build failure on Ubuntu 24.04 with LTO"
   href=3D"https://bugs.dpdk.org/show_bug.cgi?id=3D1511">1511</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>net/tap build failure on Ubuntu 24.04 with LTO
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DPDK
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>24.07
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>ethdev
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dev&#64;dpdk.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>alialnu&#64;nvidia.com
          </td>
        </tr>

        <tr>
          <th>Target Milestone</th>
          <td>---
          </td>
        </tr></table>
      <p>
        <div class=3D"bz_comment_block">
          <pre class=3D"bz_comment_text">$ meson --werror -Db_lto=3Dtrue bu=
ild &amp;&amp; ninja -C build
[..]
[2109/2774] Linking target drivers/librte_net_tap.so.24.2
../drivers/net/tap/tap_netlink.c: In function =E2=80=98tap_flow_create_ipv6=
=E2=80=99:
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
[2755/2774] Linking target app/dpdk-test-pipeline
../drivers/net/tap/tap_netlink.c: In function =E2=80=98tap_flow_create_ipv6=
=E2=80=99:
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
   20 |         struct nlmsghdr nh;
      |                         ^
../drivers/net/tap/tap_netlink.c:305:9: warning: writing 16 bytes into a re=
gion
of size 12 [-Wstringop-overflow=3D]
  305 |         memcpy(RTA_DATA(rta), data, data_len);
      |         ^
../drivers/net/tap/tap_netlink.h:20:25: note: at offset [4, 16] into
destination object =E2=80=98nh=E2=80=99 of size 16
[..]

OS: Ubuntu 24.04
Meson: 1.3.2
Compiler: gcc 13.2.0
          </pre>
        </div>
      </p>


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