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authorJohannes Berg <johannes.berg@intel.com>2024-02-28 09:55:42 +0100
committerJohannes Berg <johannes.berg@intel.com>2024-03-04 14:33:51 +0100
commit8ade3356b25ab2522892a21832a709e7ad5f8168 (patch)
tree1e62fa0ea57e1bb3e46d600230c050b3ac2c24f2 /include/net
parent22667035e5ddb7b68c7d473693b321fb9e20a397 (diff)
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.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 53653d234d39..2e2be4fd2bb6 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