Re: [PATCH bpf-next v7 0/5] bpf: Add open-coded style process file iterator and bpf_fget_task() kfunc

[Juntong Deng]

On 2025/1/21 15:20, Juntong Deng wrote:
> I noticed that the errors in Kernel CI
>
> progs/iters_task_file.c: In function ‘test_bpf_iter_task_file’:
>    progs/iters_task_file.c:43:33: error: taking address of expression of 
> type ‘void’ [-Werror]
>       43 |         if (item->file->f_op != &pipefifo_fops) {
>          |                                 ^
>    progs/iters_task_file.c:59:33: error: taking address of expression of 
> type ‘void’ [-Werror]
>       59 |         if (item->file->f_op != &pipefifo_fops) {
>          |                                 ^
>    progs/iters_task_file.c:75:33: error: taking address of expression of 
> type ‘void’ [-Werror]
>       75 |         if (item->file->f_op != &socket_file_ops) {
>          |                                 ^
>
> These errors are caused by -Werror (treat all warnings as errors).
>
> In this test case, we do need to get the address of void type.

I found out that these errors were caused by removing the 'const'
in front of 'void'.

I will add back 'const' in the next version.