From bfe2c7b1cce4a1e13669e74796a172d7dcbf9d27 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 26 Oct 2016 14:42:21 +0200 Subject: [PATCH] nl80211: use nla_parse_nested() instead of nla_parse() It's just an inline doing the same thing, but the code is nicer with it. Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 85 ++++++++++++++++++------------------------ 1 file changed, 37 insertions(+), 48 deletions(-) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 1d07a51c3f2b..7e746c90156e 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2319,10 +2319,9 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) nla_for_each_nested(nl_txq_params, info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], rem_txq_params) { - result = nla_parse(tb, NL80211_TXQ_ATTR_MAX, - nla_data(nl_txq_params), - nla_len(nl_txq_params), - txq_params_policy); + result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX, + nl_txq_params, + txq_params_policy); if (result) return result; result = parse_txq_params(tb, &txq_params); @@ -3572,8 +3571,8 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info, sband = rdev->wiphy.bands[band]; if (sband == NULL) return -EINVAL; - err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), - nla_len(tx_rates), nl80211_txattr_policy); + err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates, + nl80211_txattr_policy); if (err) return err; if (tb[NL80211_TXRATE_LEGACY]) { @@ -6329,9 +6328,8 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], rem_reg_rules) { - r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, - nla_data(nl_reg_rule), nla_len(nl_reg_rule), - reg_rule_policy); + r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX, + nl_reg_rule, reg_rule_policy); if (r) goto bad_reg; r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); @@ -6398,8 +6396,8 @@ static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy, if (!nla_ok(nest, nla_len(nest))) return -EINVAL; - err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest), - nla_len(nest), nl80211_bss_select_policy); + err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest, + nl80211_bss_select_policy); if (err) return err; @@ -6789,9 +6787,8 @@ nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans, if (WARN_ON(i >= n_plans)) return -EINVAL; - err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX, - nla_data(attr), nla_len(attr), - nl80211_plan_policy); + err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX, + attr, nl80211_plan_policy); if (err) return err; @@ -6880,9 +6877,9 @@ nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, tmp) { struct nlattr *rssi; - err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, - nla_data(attr), nla_len(attr), - nl80211_match_policy); + err = nla_parse_nested(tb, + NL80211_SCHED_SCAN_MATCH_ATTR_MAX, + attr, nl80211_match_policy); if (err) return ERR_PTR(err); /* add other standalone attributes here */ @@ -7053,9 +7050,9 @@ nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, tmp) { struct nlattr *ssid, *rssi; - err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, - nla_data(attr), nla_len(attr), - nl80211_match_policy); + err = nla_parse_nested(tb, + NL80211_SCHED_SCAN_MATCH_ATTR_MAX, + attr, nl80211_match_policy); if (err) goto out_free; ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; @@ -9755,9 +9752,8 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, if (!rdev->wiphy.wowlan->tcp) return -EINVAL; - err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, - nla_data(attr), nla_len(attr), - nl80211_wowlan_tcp_policy); + err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr, + nl80211_wowlan_tcp_policy); if (err) return err; @@ -9902,9 +9898,7 @@ static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev, goto out; } - err = nla_parse(tb, NL80211_ATTR_MAX, - nla_data(attr), nla_len(attr), - nl80211_policy); + err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy); if (err) goto out; @@ -9938,10 +9932,9 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) goto set_wakeup; } - err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, - nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), - nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), - nl80211_wowlan_policy); + err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG, + info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS], + nl80211_wowlan_policy); if (err) return err; @@ -10023,8 +10016,8 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) rem) { u8 *mask_pat; - nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), - nla_len(pat), NULL); + nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, + NULL); err = -EINVAL; if (!pat_tb[NL80211_PKTPAT_MASK] || !pat_tb[NL80211_PKTPAT_PATTERN]) @@ -10234,8 +10227,8 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, int rem, pat_len, mask_len, pkt_offset, n_patterns = 0; struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; - err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule), - nla_len(rule), nl80211_coalesce_policy); + err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule, + nl80211_coalesce_policy); if (err) return err; @@ -10273,8 +10266,7 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, rem) { u8 *mask_pat; - nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), - nla_len(pat), NULL); + nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL); if (!pat_tb[NL80211_PKTPAT_MASK] || !pat_tb[NL80211_PKTPAT_PATTERN]) return -EINVAL; @@ -10393,10 +10385,9 @@ static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) if (!info->attrs[NL80211_ATTR_REKEY_DATA]) return -EINVAL; - err = nla_parse(tb, MAX_NL80211_REKEY_DATA, - nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), - nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), - nl80211_rekey_policy); + err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA, + info->attrs[NL80211_ATTR_REKEY_DATA], + nl80211_rekey_policy); if (err) return err; @@ -10705,10 +10696,9 @@ static int nl80211_nan_add_func(struct sk_buff *skb, wdev->owner_nlportid != info->snd_portid) return -ENOTCONN; - err = nla_parse(tb, NL80211_NAN_FUNC_ATTR_MAX, - nla_data(info->attrs[NL80211_ATTR_NAN_FUNC]), - nla_len(info->attrs[NL80211_ATTR_NAN_FUNC]), - nl80211_nan_func_policy); + err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX, + info->attrs[NL80211_ATTR_NAN_FUNC], + nl80211_nan_func_policy); if (err) return err; @@ -10803,10 +10793,9 @@ static int nl80211_nan_add_func(struct sk_buff *skb, if (tb[NL80211_NAN_FUNC_SRF]) { struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR]; - err = nla_parse(srf_tb, NL80211_NAN_SRF_ATTR_MAX, - nla_data(tb[NL80211_NAN_FUNC_SRF]), - nla_len(tb[NL80211_NAN_FUNC_SRF]), - nl80211_nan_srf_policy); + err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX, + tb[NL80211_NAN_FUNC_SRF], + nl80211_nan_srf_policy); if (err) goto out;