From 98a1f8282b8c37378c1b947d661a58942331ca90 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 26 Aug 2015 12:22:14 +0200 Subject: [PATCH] mac80211: Do not use sizeof() on pointer type The rate_control_cap_mask() function takes a parameter mcs_mask, which GCC will take to be u8 * even though it was declared with a fixed size. This causes the following warning: net/mac80211/rate.c: In function 'rate_control_cap_mask': net/mac80211/rate.c:719:25: warning: 'sizeof' on array function parameter 'mcs_mask' will return size of 'u8 * {aka unsigned char *}' [-Wsizeof-array-argument] for (i = 0; i < sizeof(mcs_mask); i++) ^ net/mac80211/rate.c:684:10: note: declared here u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN], ^ This can be easily fixed by using the IEEE80211_HT_MCS_MASK_LEN directly within the loop condition. Signed-off-by: Thierry Reding Signed-off-by: Johannes Berg --- net/mac80211/rate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 9857693b91ec..9ce8883d5f44 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -716,7 +716,7 @@ static bool rate_control_cap_mask(struct ieee80211_sub_if_data *sdata, /* Filter out rates that the STA does not support */ *mask &= sta->supp_rates[sband->band]; - for (i = 0; i < sizeof(mcs_mask); i++) + for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) mcs_mask[i] &= sta->ht_cap.mcs.rx_mask[i]; sta_vht_cap = sta->vht_cap.vht_mcs.rx_mcs_map;