diff options
| author | John W. Linville <linville@tuxdriver.com> | 2011-06-06 22:35:27 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-06-06 23:23:53 +0400 |
| commit | ab6a44ce1da48d35fe7ec95fa068aa617bd7e8dd (patch) | |
| tree | fa8cc877e369e5da15a6daead490d3a87f15909f /net/mac80211/key.c | |
| parent | d2ac49fe3c7c4730323c1042fb53a2e008643b6a (diff) | |
| download | linux-ab6a44ce1da48d35fe7ec95fa068aa617bd7e8dd.tar.xz | |
Revert "mac80211: Skip tailroom reservation for full HW-crypto devices"
This reverts commit aac6af5534fade2b18682a0b9efad1a6c04c34c6.
Conflicts:
net/mac80211/key.c
That commit has a race that causes a warning, as documented in the thread
here:
http://marc.info/?l=linux-wireless&m=130717684914101&w=2
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/key.c')
| -rw-r--r-- | net/mac80211/key.c | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 31afd712930d..f825e2f0a57e 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -101,11 +101,6 @@ 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) || - (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))) - key->local->crypto_tx_tailroom_needed_cnt--; - return 0; } @@ -161,10 +156,6 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) key->conf.keyidx, sta ? sta->addr : bcast_addr, ret); key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; - - if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || - (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))) - key->local->crypto_tx_tailroom_needed_cnt++; } void ieee80211_key_removed(struct ieee80211_key_conf *key_conf) @@ -403,10 +394,8 @@ static void __ieee80211_key_destroy(struct ieee80211_key *key) ieee80211_aes_key_free(key->u.ccmp.tfm); if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC) ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm); - if (key->local) { + if (key->local) ieee80211_debugfs_key_remove(key); - key->local->crypto_tx_tailroom_needed_cnt--; - } kfree(key); } @@ -468,8 +457,6 @@ int ieee80211_key_link(struct ieee80211_key *key, ieee80211_debugfs_key_add(key); - key->local->crypto_tx_tailroom_needed_cnt++; - ret = ieee80211_key_enable_hw_accel(key); mutex_unlock(&sdata->local->key_mtx); @@ -511,12 +498,8 @@ void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata) mutex_lock(&sdata->local->key_mtx); - sdata->local->crypto_tx_tailroom_needed_cnt = 0; - - list_for_each_entry(key, &sdata->key_list, list) { - sdata->local->crypto_tx_tailroom_needed_cnt++; + list_for_each_entry(key, &sdata->key_list, list) ieee80211_key_enable_hw_accel(key); - } mutex_unlock(&sdata->local->key_mtx); } |