From 4c82bf8e5689b1dddd9bcec70efc3b70edef1670 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Sat, 30 Jan 2010 19:55:09 -0500 Subject: [PATCH] mac80211: reduce stack usage in sta_ht_capa_read() The maximal size of the "ht_capa" file is 430 bytes. In most cases, it's much shorter. Use a 512 byte long buffer. 1024 bytes is too much and causes a warning with CONFIG_FRAME_WARN=1024. Signed-off-by: Pavel Roskin Signed-off-by: John W. Linville --- net/mac80211/debugfs_sta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 0d4a759ba72c..84865e7ef13b 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -165,7 +165,7 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, if (_cond) \ p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ } while (0) - char buf[1024], *p = buf; + char buf[512], *p = buf; int i; struct sta_info *sta = file->private_data; struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;