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Message-ID: <20180704210553.GA7869@embeddedor.com>
Date: Wed, 4 Jul 2018 16:05:53 -0500
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: Johannes Berg <johannes@...solutions.net>,
"David S. Miller" <davem@...emloft.net>
Cc: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] wireless: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Warning level 2 was used: -Wimplicit-fallthrough=2
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
net/wireless/chan.c | 2 ++
net/wireless/nl80211.c | 9 +++++++++
net/wireless/wext-compat.c | 2 ++
3 files changed, 13 insertions(+)
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 2db713d..145cb51 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -747,6 +747,7 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
case NL80211_CHAN_WIDTH_20:
if (!ht_cap->ht_supported)
return false;
+ /* else: fall through */
case NL80211_CHAN_WIDTH_20_NOHT:
prohibited_flags |= IEEE80211_CHAN_NO_20MHZ;
width = 20;
@@ -769,6 +770,7 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
return false;
+ /* else: fall through */
case NL80211_CHAN_WIDTH_80:
if (!vht_cap->vht_supported)
return false;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e4e5f02..59b0ac5 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1676,6 +1676,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start++;
if (state->split)
break;
+ /* else: fall through */
case 1:
if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
sizeof(u32) * rdev->wiphy.n_cipher_suites,
@@ -1722,6 +1723,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start++;
if (state->split)
break;
+ /* else: fall through */
case 2:
if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
rdev->wiphy.interface_modes))
@@ -1729,6 +1731,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start++;
if (state->split)
break;
+ /* else: fall through */
case 3:
nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
if (!nl_bands)
@@ -1754,6 +1757,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->chan_start++;
if (state->split)
break;
+ /* else: fall through */
default:
/* add frequencies */
nl_freqs = nla_nest_start(
@@ -1807,6 +1811,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start++;
if (state->split)
break;
+ /* else: fall through */
case 4:
nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
if (!nl_cmds)
@@ -1833,6 +1838,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start++;
if (state->split)
break;
+ /* else: fall through */
case 5:
if (rdev->ops->remain_on_channel &&
(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
@@ -1850,6 +1856,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start++;
if (state->split)
break;
+ /* else: fall through */
case 6:
#ifdef CONFIG_PM
if (nl80211_send_wowlan(msg, rdev, state->split))
@@ -1872,6 +1879,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
state->split_start++;
if (state->split)
break;
+ /* else: fall through */
case 8:
if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
@@ -4466,6 +4474,7 @@ static int parse_station_flags(struct genl_info *info,
params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
BIT(NL80211_STA_FLAG_MFP) |
BIT(NL80211_STA_FLAG_AUTHORIZED);
+ /* fall through */
default:
return -EINVAL;
}
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 167f702..9db3920 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1333,6 +1333,7 @@ static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
wstats.qual.qual = sig + 110;
break;
}
+ /* else: fall through */
case CFG80211_SIGNAL_TYPE_UNSPEC:
if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL)) {
wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
@@ -1341,6 +1342,7 @@ static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
wstats.qual.qual = sinfo.signal;
break;
}
+ /* else: fall through */
default:
wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
--
2.7.4
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