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authorEric Biggers <ebiggers@kernel.org>2026-04-07 20:06:47 -0700
committerJohannes Berg <johannes.berg@intel.com>2026-04-08 08:55:15 +0200
commit613c83766884503f0f6bfdc45964c84b5286091c (patch)
treea612b482d484953640eff73f8b954ef0483d818d /include/linux
parentea06baf59bd4b83c2cb13698411909e5e6be001e (diff)
wifi: mac80211, cfg80211: Export michael_mic() and move it to cfg80211
Export michael_mic() so that the ath11k and ath12k drivers can call it. In addition, move it from mac80211 to cfg80211 so that the ipw2x00 drivers, which depend on cfg80211 but not mac80211, can also call it. Currently these drivers have their own local implementations of michael_mic() based on crypto_shash, which is redundant and inefficient. By consolidating all the Michael MIC code into cfg80211, we'll be able to remove the duplicate Michael MIC code in the crypto/ directory. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Link: https://patch.msgid.link/20260408030651.80336-3-ebiggers@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/ieee80211.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index ffa8f9f77efe..23f9df9be837 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1921,6 +1921,11 @@ enum ieee80211_radio_measurement_actioncode {
#define PMK_MAX_LEN 64
#define SAE_PASSWORD_MAX_LEN 128
+#define MICHAEL_MIC_LEN 8
+
+void michael_mic(const u8 *key, struct ieee80211_hdr *hdr,
+ const u8 *data, size_t data_len, u8 *mic);
+
/* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
enum ieee80211_pub_actioncode {
WLAN_PUB_ACTION_20_40_BSS_COEX = 0,