kernel/bpf/task_iter.c:819:7-15: 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 <lkp@intel.com>]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Dave Marchevsky <davemarchevsky@fb.com>
CC: Andrii Nakryiko <andrii@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0fc810ae3ae110f9e2fcccce80fc8c8d62f97907
commit: 4ac4546821584736798aaa9e97da9f6eaf689ea3 bpf: Introduce task_vma open-coded iterator kfuncs
date:   1 year, 1 month ago
:::::: branch date: 8 hours ago
:::::: commit date: 1 year, 1 month ago
config: i386-randconfig-051-20241031 (https://download.01.org/0day-ci/archive/20241031/202410311319.sJYbhKzn-lkp@intel.com/config)
compiler: clang version 19.1.2 (https://github.com/llvm/llvm-project 7ba7d8e2f7b6445b60679da826210cdde29eaf8b)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Julia Lawall <julia.lawall@inria.fr>
| Closes: https://lore.kernel.org/r/202410311319.sJYbhKzn-lkp@intel.com/

cocci warnings: (new ones prefixed by >>)
>> kernel/bpf/task_iter.c:819:7-15: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

vim +819 kernel/bpf/task_iter.c

4ac454682158473 Dave Marchevsky 2023-10-13  814  
4ac454682158473 Dave Marchevsky 2023-10-13  815  struct bpf_iter_task_vma {
4ac454682158473 Dave Marchevsky 2023-10-13  816  	/* opaque iterator state; having __u64 here allows to preserve correct
4ac454682158473 Dave Marchevsky 2023-10-13  817  	 * alignment requirements in vmlinux.h, generated from BTF
4ac454682158473 Dave Marchevsky 2023-10-13  818  	 */
4ac454682158473 Dave Marchevsky 2023-10-13 @819  	__u64 __opaque[1];
4ac454682158473 Dave Marchevsky 2023-10-13  820  } __attribute__((aligned(8)));
4ac454682158473 Dave Marchevsky 2023-10-13  821  

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