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-rw-r--r--include/net/mac80211.h7
-rw-r--r--net/mac80211/key.c12
2 files changed, 11 insertions, 8 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 58d719d..29c7be8 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1270,8 +1270,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev);
*
* @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
* driver to indicate that it requires IV generation for this
- * particular key. Setting this flag does not necessarily mean that SKBs
- * will have sufficient tailroom for ICV or MIC.
+ * particular key.
* @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
* the driver for a TKIP key if it requires Michael MIC
* generation in software.
@@ -1283,9 +1282,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev);
* @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver
* if space should be prepared for the IV, but the IV
* itself should not be generated. Do not set together with
- * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does
- * not necessarily mean that SKBs will have sufficient tailroom for ICV or
- * MIC.
+ * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key.
* @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received
* management frames. The flag can help drivers that have a hardware
* crypto implementation that doesn't deal with management frames
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 0bb7038..bd4e46e 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -140,7 +140,9 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
if (!ret) {
key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
- if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
+ if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
sdata->crypto_tx_tailroom_needed_cnt--;
WARN_ON((key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) &&
@@ -188,7 +190,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
sta = key->sta;
sdata = key->sdata;
- if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
+ if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
increment_tailroom_need_count(sdata);
ret = drv_set_key(key->local, DISABLE_KEY, sdata,
@@ -884,7 +888,9 @@ void ieee80211_remove_key(struct ieee80211_key_conf *keyconf)
if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
- if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
+ if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
increment_tailroom_need_count(key->sdata);
}
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