From a412c8040d83366dcc24962207b8beed52f29344 Mon Sep 17 00:00:00 2001 From: Frank Seidel Date: Sun, 1 Mar 2009 20:25:38 +0100 Subject: iwlwifi: reduce stack size Reduce stack memory footprint of iwlwifi. (From >1000 bytes for each *_table_read on i386 down to 32) Signed-off-by: Frank Seidel Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/net/wireless/iwlwifi/iwl-3945-rs.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c index 7db8198..a266458 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c @@ -846,11 +846,16 @@ static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { - char buff[1024]; + char *buff; int desc = 0; int j; + ssize_t ret; struct iwl3945_rs_sta *lq_sta = file->private_data; + buff = kmalloc(1024, GFP_KERNEL); + if (!buff) + return -ENOMEM; + desc += sprintf(buff + desc, "tx packets=%d last rate index=%d\n" "rate=0x%X flush time %d\n", lq_sta->tx_packets, @@ -863,7 +868,9 @@ static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, lq_sta->win[j].success_counter, lq_sta->win[j].success_ratio); } - return simple_read_from_buffer(user_buf, count, ppos, buff, desc); + ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); + kfree(buff); + return ret; } static const struct file_operations rs_sta_dbgfs_stats_table_ops = { -- cgit v1.1