| commit | c9d29f4658a5a6d2c2ba2afeb20ff763fc6286f9 | [log] [tgz] |
|---|---|---|
| author | Mauricio Vasquez B <mauricio.vasquez@polito.it> | Thu Oct 18 15:16:14 2018 +0200 |
| committer | Alexei Starovoitov <ast@kernel.org> | Fri Oct 19 13:24:31 2018 -0700 |
| tree | 7e6d5a147223d0816abf33e881bd0bb0ea511904 | |
| parent | 144991602e6a14d667b295f1b099e609ce857772 [diff] |
bpf/syscall: allow key to be null in map functions This commit adds the required logic to allow key being NULL in case the key_size of the map is 0. A new __bpf_copy_key function helper only copies the key from userpsace when key_size != 0, otherwise it enforces that key must be null. Signed-off-by: Mauricio Vasquez B <mauricio.vasquez@polito.it> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>