Commit aa4ec06c authored by Dmitry Antipov's avatar Dmitry Antipov Committed by Johannes Berg
Browse files

wifi: cfg80211: use __counted_by where appropriate 



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: default avatarDmitry Antipov <dmantipov@yandex.ru>
Link: https://msgid.link/20240517153332.18271-1-dmantipov@yandex.ru


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent f9a0757a

include/net/cfg80211.h

+4 −4
Original line number Diff line number Diff line
@@ -2200,7 +2200,7 @@ struct cfg80211_sar_sub_specs { 
struct cfg80211_sar_specs {

	enum nl80211_sar_type type;

	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;



	/* 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_ssid ssid;

	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 {

	int n_matches;

	struct cfg80211_wowlan_nd_match *matches[];

	struct cfg80211_wowlan_nd_match *matches[] __counted_by(n_matches);

};



/**