net/ipv6/rpl_iptunnel.c:16:24-27: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

net/ipv6/rpl_iptunnel.c:16:24-27: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Denis Efremov <efremov@linux.com>
CC: Julia Lawall <Julia.Lawall@lip6.fr>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   303392fd5c160822bf778270b28ec5ea50cab2b4
commit: 7b36c1398fb63f9c38cc83dc75f143d2e5995062 coccinelle: misc: add flexible_array.cocci script
date:   9 months ago
:::::: branch date: 11 hours ago
:::::: commit date: 9 months ago
config: s390-allmodconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>


cocci warnings: (new ones prefixed by >>)
>> net/ipv6/rpl_iptunnel.c:16:24-27: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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[PATCH] coccinelle: misc: fix flexible_array.cocci warnings

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Denis Efremov <efremov@linux.com>
CC: Julia Lawall <Julia.Lawall@lip6.fr>
CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
CC: Jakub Kicinski <kuba@kernel.org>
CC: netdev(a)vger.kernel.org
CC: linux-kernel(a)vger.kernel.org

From: kernel test robot <lkp@intel.com>

net/ipv6/rpl_iptunnel.c:16:24-27: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)


 Zero-length and one-element arrays are deprecated, see
 Documentation/process/deprecated.rst
 Flexible-array members should be used instead.

Generated by: scripts/coccinelle/misc/flexible_array.cocci

Fixes: 7b36c1398fb6 ("coccinelle: misc: add flexible_array.cocci script")
CC: Denis Efremov <efremov@linux.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   303392fd5c160822bf778270b28ec5ea50cab2b4
commit: 7b36c1398fb63f9c38cc83dc75f143d2e5995062 coccinelle: misc: add flexible_array.cocci script
:::::: branch date: 11 hours ago
:::::: commit date: 9 months ago

Please take the patch only if it's a positive warning. Thanks!

 rpl_iptunnel.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv6/rpl_iptunnel.c
+++ b/net/ipv6/rpl_iptunnel.c
@@ -13,7 +13,7 @@
 #include <net/rpl.h>
 
 struct rpl_iptunnel_encap {
-	struct ipv6_rpl_sr_hdr srh[0];
+	struct ipv6_rpl_sr_hdr srh[];
 };
 
 struct rpl_lwt {