diff options
| author | Kees Cook <keescook@chromium.org> | 2022-05-08 13:22:17 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-05-10 13:21:51 +0300 |
| commit | dc5306a8c0eace6c113aded2e36ae5e15fdca4d7 (patch) | |
| tree | 9871932c6b1920bdf99797282deb89d92f2de435 /net/decnet/dn_route.c | |
| parent | 1809c30b6e5a83a1de1435fe01aaa4de4d626a7c (diff) | |
| download | linux-dc5306a8c0eace6c113aded2e36ae5e15fdca4d7.tar.xz | |
decnet: Use container_of() for struct dn_neigh casts
Clang's structure layout randomization feature gets upset when it sees
struct neighbor (which is randomized) cast to struct dn_neigh:
net/decnet/dn_route.c:1123:15: error: casting from randomized structure pointer type 'struct neighbour *' to 'struct dn_neigh *'
gateway = ((struct dn_neigh *)neigh)->addr;
^
Update all the open-coded casts to use container_of() to do the conversion
instead of depending on strict member ordering.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202205041247.WKBEHGS5-lkp@intel.com
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Yajun Deng <yajun.deng@linux.dev>
Cc: Zheng Yongjun <zhengyongjun3@huawei.com>
Cc: Bill Wendling <morbo@google.com>
Cc: linux-decnet-user@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220508102217.2647184-1-keescook@chromium.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/decnet/dn_route.c')
| -rw-r--r-- | net/decnet/dn_route.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c index 7e85f2a1ae25..d1d78a463a06 100644 --- a/net/decnet/dn_route.c +++ b/net/decnet/dn_route.c @@ -1120,7 +1120,7 @@ source_ok: /* Ok then, we assume its directly connected and move on */ select_source: if (neigh) - gateway = ((struct dn_neigh *)neigh)->addr; + gateway = container_of(neigh, struct dn_neigh, n)->addr; if (gateway == 0) gateway = fld.daddr; if (fld.saddr == 0) { @@ -1429,7 +1429,7 @@ static int dn_route_input_slow(struct sk_buff *skb) /* Use the default router if there is one */ neigh = neigh_clone(dn_db->router); if (neigh) { - gateway = ((struct dn_neigh *)neigh)->addr; + gateway = container_of(neigh, struct dn_neigh, n)->addr; goto make_route; } |