diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2024-02-28 09:55:42 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-03-04 14:33:51 +0100 |
| commit | 8ade3356b25ab2522892a21832a709e7ad5f8168 (patch) | |
| tree | 1e62fa0ea57e1bb3e46d600230c050b3ac2c24f2 /include/net | |
| parent | 22667035e5ddb7b68c7d473693b321fb9e20a397 (diff) | |
| download | linux-8ade3356b25ab2522892a21832a709e7ad5f8168.tar.gz | |
wifi: cfg80211: allow cfg80211_defragment_element() without output
If we just want to determine the length of the fragmented
data, we basically need the same logic, and really we want
it to be _literally_ the same logic, so it cannot be out
of sync in any way.
Allow calling cfg80211_defragment_element() without an output
buffer, where it then just returns the required output size.
Also add this to the tests, just to exercise it, using the
pre-calculated length to really do the defragmentation, which
checks that this is sufficient.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://msgid.link/20240228095718.6d6565b9e3f2.Ib441903f4b8644ba04b1c766f90580ee6f54fc66@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/cfg80211.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 53653d234d398..2e2be4fd2bb65 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -6908,8 +6908,8 @@ bool cfg80211_iter_rnr(const u8 *elems, size_t elems_len, * @elem: the element to defragment * @ies: elements where @elem is contained * @ieslen: length of @ies - * @data: buffer to store element data - * @data_len: length of @data + * @data: buffer to store element data, or %NULL to just determine size + * @data_len: length of @data, or 0 * @frag_id: the element ID of fragments * * Return: length of @data, or -EINVAL on error |