ath9k: Add initial layout for an ath9k specific debugfs mechanism

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 23 insertions, 3 deletions

diff --git a/drivers/net/wireless/ath9k/debug.c b/drivers/net/wireless/ath9k/debug.c
index 31af7cc0fa34..c146e484ef54 100644
--- a/drivers/net/wireless/ath9k/debug.c
+++ b/drivers/net/wireless/ath9k/debug.c
@@ -24,7 +24,7 @@ void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
         if (!sc)
                 return;
 
-        if (sc->sc_debug & dbg_mask) {
+        if (sc->sc_debug.debug_mask & dbg_mask) {
                 va_list args;
 
                 va_start(args, fmt);
@@ -34,7 +34,27 @@ void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
         }
 }
 
-void ath9k_init_debug(struct ath_softc *sc)
+int ath9k_init_debug(struct ath_softc *sc)
 {
-        sc->sc_debug = ath9k_debug;
+        sc->sc_debug.debug_mask = ath9k_debug;
+
+        sc->sc_debug.debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
+        if (!sc->sc_debug.debugfs_root)
+                goto err;
+
+        sc->sc_debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
+                                                      sc->sc_debug.debugfs_root);
+        if (!sc->sc_debug.debugfs_phy)
+                goto err;
+
+        return 0;
+err:
+        ath9k_exit_debug(sc);
+        return -ENOMEM;
+}
+
+void ath9k_exit_debug(struct ath_softc *sc)
+{
+        debugfs_remove(sc->sc_debug.debugfs_phy);
+        debugfs_remove(sc->sc_debug.debugfs_root);
 }