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mac80211: mark expected switch fall-throughs

Browse source 
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Notice that in some cases I replaced "fall through on else" and
"otherwise fall through" comments with just a "fall through" comment,
which is what GCC is expecting to find.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Gustavo A. R. Silva 2017-10-17 18:14:50 -05:00 • committed by Johannes Berg
parent 51e18a453f
commit 02049ce27e
10 changed files with 14 additions and 4 deletions
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3
net/mac80211/cfg.c
View file

@ -573,10 +573,12 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
case WLAN_CIPHER_SUITE_BIP_CMAC_256:
BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
offsetof(typeof(kseq), aes_cmac));
/* fall through */
case WLAN_CIPHER_SUITE_BIP_GMAC_128:
case WLAN_CIPHER_SUITE_BIP_GMAC_256:
BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
offsetof(typeof(kseq), aes_gmac));
/* fall through */
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
@ -2205,6 +2207,7 @@ static int ieee80211_scan(struct wiphy *wiphy,
* for now fall through to allow scanning only when
* beaconing hasn't been configured yet
*/
/* fall through */
case NL80211_IFTYPE_AP:
/*
* If the scan has been forced (and the driver supports

1
net/mac80211/ht.c
View file

@ -493,6 +493,7 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
case IEEE80211_SMPS_AUTOMATIC:
case IEEE80211_SMPS_NUM_MODES:
WARN_ON(1);
/* fall through */
case IEEE80211_SMPS_OFF:
action_frame->u.action.u.ht_smps.smps_control =
WLAN_HT_SMPS_CONTROL_DISABLED;

2
net/mac80211/iface.c
View file

@ -1633,7 +1633,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
goto out_unlock;
}
}
/* otherwise fall through */
/* fall through */
default:
/* assign a new address if possible -- try n_addresses first */
for (i = 0; i < local->hw.wiphy->n_addresses; i++) {

2
net/mac80211/mesh.c
View file

@ -989,8 +989,10 @@ ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata,
switch (sdata->vif.bss_conf.chandef.width) {
case NL80211_CHAN_WIDTH_20_NOHT:
sta_flags |= IEEE80211_STA_DISABLE_HT;
/* fall through */
case NL80211_CHAN_WIDTH_20:
sta_flags |= IEEE80211_STA_DISABLE_40MHZ;
/* fall through */
case NL80211_CHAN_WIDTH_40:
sta_flags |= IEEE80211_STA_DISABLE_VHT;
break;

1
net/mac80211/mesh_hwmp.c
View file

@ -1250,6 +1250,7 @@ void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)
break;
case IEEE80211_PROACTIVE_PREQ_WITH_PREP:
flags |= IEEE80211_PREQ_PROACTIVE_PREP_FLAG;
/* fall through */
case IEEE80211_PROACTIVE_PREQ_NO_PREP:
interval = ifmsh->mshcfg.dot11MeshHWMPactivePathToRootTimeout;
target_flags |= IEEE80211_PREQ_TO_FLAG |

2
net/mac80211/mesh_plink.c
View file

@ -672,7 +672,7 @@ void mesh_plink_timer(struct timer_list *t)
break;
}
reason = WLAN_REASON_MESH_MAX_RETRIES;
/* fall through on else */
/* fall through */
case NL80211_PLINK_CNF_RCVD:
/* confirm timer */
if (!reason)

1
net/mac80211/mlme.c
View file

@ -473,6 +473,7 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
case IEEE80211_SMPS_AUTOMATIC:
case IEEE80211_SMPS_NUM_MODES:
WARN_ON(1);
/* fall through */
case IEEE80211_SMPS_OFF:
cap |= WLAN_HT_CAP_SM_PS_DISABLED <<
IEEE80211_HT_CAP_SM_PS_SHIFT;

4
net/mac80211/offchannel.c
View file

@ -801,14 +801,14 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
case NL80211_IFTYPE_ADHOC:
if (!sdata->vif.bss_conf.ibss_joined)
need_offchan = true;
/* fall through */
#ifdef CONFIG_MAC80211_MESH
/* fall through */
case NL80211_IFTYPE_MESH_POINT:
if (ieee80211_vif_is_mesh(&sdata->vif) &&
!sdata->u.mesh.mesh_id_len)
need_offchan = true;
/* fall through */
#endif
/* fall through */
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_P2P_GO:

1
net/mac80211/tdls.c
View file

@ -236,6 +236,7 @@ static enum ieee80211_ac_numbers ieee80211_ac_from_wmm(int ac)
switch (ac) {
default:
WARN_ON_ONCE(1);
/* fall through */
case 0:
return IEEE80211_AC_BE;
case 1:

1
net/mac80211/wme.c
View file

@ -165,6 +165,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
qos = sta->sta.wme;
break;
}
/* fall through */
case NL80211_IFTYPE_AP:
ra = skb->data;
break;