ath9k: create a common debugfs_root for all device instances
The driver are trying to create an 'ath9k' directory in debugfs for each
device currently. If there are more than one device in the system, the
second try will always fail.
Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/debug.c b/drivers/net/wireless/ath9k/debug.c
index 8d914221..0f7e249 100644
--- a/drivers/net/wireless/ath9k/debug.c
+++ b/drivers/net/wireless/ath9k/debug.c
@@ -19,6 +19,8 @@
static unsigned int ath9k_debug = DBG_DEFAULT;
module_param_named(debug, ath9k_debug, uint, 0);
+static struct dentry *ath9k_debugfs_root;
+
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
{
if (!sc)
@@ -491,12 +493,8 @@
{
sc->debug.debug_mask = ath9k_debug;
- sc->debug.debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (!sc->debug.debugfs_root)
- goto err;
-
sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
- sc->debug.debugfs_root);
+ ath9k_debugfs_root);
if (!sc->debug.debugfs_phy)
goto err;
@@ -538,5 +536,19 @@
debugfs_remove(sc->debug.debugfs_interrupt);
debugfs_remove(sc->debug.debugfs_dma);
debugfs_remove(sc->debug.debugfs_phy);
- debugfs_remove(sc->debug.debugfs_root);
+}
+
+int ath9k_debug_create_root(void)
+{
+ ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
+ if (!ath9k_debugfs_root)
+ return -ENOENT;
+
+ return 0;
+}
+
+void ath9k_debug_remove_root(void)
+{
+ debugfs_remove(ath9k_debugfs_root);
+ ath9k_debugfs_root = NULL;
}