ath9k: separate debugfs support from CONFIG_ATH_DEBUG

In my setups, ath9k's debugfs files are most of the time much more
useful than the messages generated by enabling CONFIG_ATH_DEBUG along
with the right debug flags.
Since CONFIG_ATH_DEBUG comes with a noticeable overhead on embedded
systems, this patch makes it possible to use the debugfs files without
that option.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 608fa06e531c..b66f72dbf7b9 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -31,6 +31,8 @@ static int ath9k_debugfs_open(struct inode *inode, struct file *file)
         return 0;
 }
 
+#ifdef CONFIG_ATH_DEBUG
+
 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
                              size_t count, loff_t *ppos)
 {
@@ -71,6 +73,8 @@ static const struct file_operations fops_debug = {
         .owner = THIS_MODULE
 };
 
+#endif
+
 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
                              size_t count, loff_t *ppos)
 {
@@ -563,10 +567,12 @@ int ath9k_init_debug(struct ath_hw *ah)
         if (!sc->debug.debugfs_phy)
                 goto err;
 
+#ifdef CONFIG_ATH_DEBUG
         sc->debug.debugfs_debug = debugfs_create_file("debug",
                 S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_debug);
         if (!sc->debug.debugfs_debug)
                 goto err;
+#endif
 
         sc->debug.debugfs_dma = debugfs_create_file("dma", S_IRUSR,
                                        sc->debug.debugfs_phy, sc, &fops_dma);