diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2023-08-28 09:54:39 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-09-11 11:27:23 +0200 |
| commit | e8c1841278a78362f7034f3de415096ddb19f097 (patch) | |
| tree | 2c5068e9417c0a71d8cf3ca199bd667657af2498 /net/wireless | |
| parent | wifi: mac80211: fix BA session teardown race (diff) | |
| download | linux-e8c1841278a78362f7034f3de415096ddb19f097.tar.xz linux-e8c1841278a78362f7034f3de415096ddb19f097.zip | |
wifi: cfg80211: annotate iftype_data pointer with sparse
There were are a number of cases in mac80211 and iwlwifi (at
least) that used the sband->iftype_data pointer directly,
instead of using the accessors to find the right array entry
to use.
Make sparse warn when such a thing is done.
To not have a lot of casts, add two helper functions/macros
- ieee80211_set_sband_iftype_data()
- for_each_sband_iftype_data()
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/chan.c | 5 | ||||
| -rw-r--r-- | net/wireless/core.c | 8 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 6 |
3 files changed, 8 insertions, 11 deletions
diff --git a/net/wireless/chan.c b/net/wireless/chan.c index 2af3aaee7493..842190dfa100 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -6,7 +6,7 @@ * * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright 2018-2022 Intel Corporation + * Copyright 2018-2023 Intel Corporation */ #include <linux/export.h> @@ -1162,8 +1162,7 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy, if (!sband) return false; - for (i = 0; i < sband->n_iftype_data; i++) { - iftd = &sband->iftype_data[i]; + for_each_sband_iftype_data(sband, i, iftd) { if (!iftd->eht_cap.has_eht) continue; diff --git a/net/wireless/core.c b/net/wireless/core.c index c419177278da..b0f6ae3ce78f 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -5,7 +5,7 @@ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright 2015-2017 Intel Deutschland GmbH - * Copyright (C) 2018-2022 Intel Corporation + * Copyright (C) 2018-2023 Intel Corporation */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -821,6 +821,7 @@ int wiphy_register(struct wiphy *wiphy) /* sanity check supported bands/channels */ for (band = 0; band < NUM_NL80211_BANDS; band++) { + const struct ieee80211_sband_iftype_data *iftd; u16 types = 0; bool have_he = false; @@ -877,14 +878,11 @@ int wiphy_register(struct wiphy *wiphy) return -EINVAL; } - for (i = 0; i < sband->n_iftype_data; i++) { - const struct ieee80211_sband_iftype_data *iftd; + for_each_sband_iftype_data(sband, i, iftd) { bool has_ap, has_non_ap; u32 ap_bits = BIT(NL80211_IFTYPE_AP) | BIT(NL80211_IFTYPE_P2P_GO); - iftd = &sband->iftype_data[i]; - if (WARN_ON(!iftd->types_mask)) return -EINVAL; if (WARN_ON(types & iftd->types_mask)) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 71a0a6e34bdb..ab0aea7dca7d 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1913,20 +1913,20 @@ static int nl80211_send_band_rateinfo(struct sk_buff *msg, struct nlattr *nl_iftype_data = nla_nest_start_noflag(msg, NL80211_BAND_ATTR_IFTYPE_DATA); + const struct ieee80211_sband_iftype_data *iftd; int err; if (!nl_iftype_data) return -ENOBUFS; - for (i = 0; i < sband->n_iftype_data; i++) { + for_each_sband_iftype_data(sband, i, iftd) { struct nlattr *iftdata; iftdata = nla_nest_start_noflag(msg, i + 1); if (!iftdata) return -ENOBUFS; - err = nl80211_send_iftype_data(msg, sband, - &sband->iftype_data[i]); + err = nl80211_send_iftype_data(msg, sband, iftd); if (err) return err; |