diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_debug.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c index 8cef1edcc621..dc79afd7e151 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c @@ -291,26 +291,15 @@ static ssize_t read_file_slot(struct file *file, char __user *user_buf, { struct ath9k_htc_priv *priv = file->private_data; char buf[512]; - unsigned int len = 0; + unsigned int len; spin_lock_bh(&priv->tx.tx_lock); - - len += scnprintf(buf + len, sizeof(buf) - len, "TX slot bitmap : "); - - len += bitmap_scnprintf(buf + len, sizeof(buf) - len, - priv->tx.tx_slot, MAX_TX_BUF_NUM); - - len += scnprintf(buf + len, sizeof(buf) - len, "\n"); - - len += scnprintf(buf + len, sizeof(buf) - len, - "Used slots : %d\n", - bitmap_weight(priv->tx.tx_slot, MAX_TX_BUF_NUM)); - + len = scnprintf(buf, sizeof(buf), + "TX slot bitmap : %*pb\n" + "Used slots : %d\n", + MAX_TX_BUF_NUM, priv->tx.tx_slot, + bitmap_weight(priv->tx.tx_slot, MAX_TX_BUF_NUM)); spin_unlock_bh(&priv->tx.tx_lock); - - if (len > sizeof(buf)) - len = sizeof(buf); - return simple_read_from_buffer(user_buf, count, ppos, buf, len); } |