Re: [PATCH bpf 6/6] selftest/bpf: Introduce __attribute__((cleanup)) in create_pair()

[Michal Luczaj]

On 7/26/24 19:27, Jakub Sitnicki wrote:
> On Wed, Jul 24, 2024 at 01:32 PM +02, Michal Luczaj wrote:
>> +#define take_fd(fd)                                                         
>>    \
>> +    ({                                                                     \
>> +            __auto_type __val = (fd);                                      \
>> +            fd = -EBADF;                                                   \
>> +            __val;                                                         \
>> +    })
> 
> Probably should operate on a pointer to fd to avoid side effects, like
> __get_and_null macro in include/linux/cleanup.h. take_fd is effectively
> __get_and_null(fd, -EBADFD).
> [...]

OK, I'll just make use of stuff from cleanup.h.