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wifi: cfg80211: use __counted_by where appropriate

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Annotate 'sub_specs' of 'struct cfg80211_sar_specs', 'channels'
of 'struct cfg80211_sched_scan_request', 'channels' of 'struct
cfg80211_wowlan_nd_match', and 'matches' of 'struct
cfg80211_wowlan_nd_info' with '__counted_by' attribute. Briefly
tested with clang 18.1.1 and CONFIG_UBSAN_BOUNDS running iwlwifi.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://msgid.link/20240517153332.18271-1-dmantipov@yandex.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Dmitry Antipov 2024-05-17 18:33:31 +03:00 committed by Johannes Berg
parent f9a0757a4b
commit aa4ec06c45
1 changed files with 4 additions and 4 deletions
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8
include/net/cfg80211.h
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@ -2200,7 +2200,7 @@ struct cfg80211_sar_sub_specs {
struct cfg80211_sar_specs { struct cfg80211_sar_specs {
enum nl80211_sar_type type; enum nl80211_sar_type type;
u32 num_sub_specs; u32 num_sub_specs;
struct cfg80211_sar_sub_specs sub_specs[]; struct cfg80211_sar_sub_specs sub_specs[] __counted_by(num_sub_specs);
}; };
@ -2838,7 +2838,7 @@ struct cfg80211_sched_scan_request {
struct list_head list; struct list_head list;
/* keep last */ /* keep last */
struct ieee80211_channel *channels[]; struct ieee80211_channel *channels[] __counted_by(n_channels);
}; };
/** /**
@ -3582,7 +3582,7 @@ struct cfg80211_coalesce {
struct cfg80211_wowlan_nd_match { struct cfg80211_wowlan_nd_match {
struct cfg80211_ssid ssid; struct cfg80211_ssid ssid;
int n_channels; int n_channels;
u32 channels[]; u32 channels[] __counted_by(n_channels);
}; };
/** /**
@ -3596,7 +3596,7 @@ struct cfg80211_wowlan_nd_match {
*/ */
struct cfg80211_wowlan_nd_info { struct cfg80211_wowlan_nd_info {
int n_matches; int n_matches;
struct cfg80211_wowlan_nd_match *matches[]; struct cfg80211_wowlan_nd_match *matches[] __counted_by(n_matches);
}; };
/** /**