[zen-kernel-zen-kernel:5.14/futex2 1/8] kernel/futex2.c:65:21-28: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

[zen-kernel-zen-kernel:5.14/futex2 1/8] kernel/futex2.c:65:21-28: 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
TO: steven(a)liquorix.net

tree:   https://github.com/zen-kernel/zen-kernel 5.14/futex2
head:   fa99bbb4cf0a5c6ed18cf58ecca678e82e008cb9
commit: cc20b5f100d4f345e0b090a7a76daea256e6097d [1/8] futex2: Implement wait and wake functions
:::::: branch date: 4 days ago
:::::: commit date: 4 days ago
config: i386-randconfig-c021-20210906 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 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 >>)
>> kernel/futex2.c:65:21-28: 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] futex2: fix flexible_array.cocci warnings

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
TO: steven(a)liquorix.net

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

kernel/futex2.c:65:21-28: 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

CC: André Almeida <andrealmeid@collabora.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://github.com/zen-kernel/zen-kernel 5.14/futex2
head:   fa99bbb4cf0a5c6ed18cf58ecca678e82e008cb9
commit: cc20b5f100d4f345e0b090a7a76daea256e6097d [1/8] futex2: Implement wait and wake functions
:::::: branch date: 4 days ago
:::::: commit date: 4 days ago

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

 futex2.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/futex2.c
+++ b/kernel/futex2.c
@@ -62,7 +62,7 @@ struct futex_waiter {
 struct futex_waiter_head {
 	struct task_struct *task;
 	bool hint;
-	struct futex_waiter objects[0];
+	struct futex_waiter objects[];
 };
 
 /**