v4.19.13 snapshot.
diff --git a/net/mac80211/debug.h b/net/mac80211/debug.h
new file mode 100644
index 0000000..d90a8f9
--- /dev/null
+++ b/net/mac80211/debug.h
@@ -0,0 +1,201 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __MAC80211_DEBUG_H
+#define __MAC80211_DEBUG_H
+#include <net/cfg80211.h>
+
+#ifdef CONFIG_MAC80211_OCB_DEBUG
+#define MAC80211_OCB_DEBUG 1
+#else
+#define MAC80211_OCB_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+#define MAC80211_IBSS_DEBUG 1
+#else
+#define MAC80211_IBSS_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_PS_DEBUG
+#define MAC80211_PS_DEBUG 1
+#else
+#define MAC80211_PS_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+#define MAC80211_HT_DEBUG 1
+#else
+#define MAC80211_HT_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MPL_DEBUG
+#define MAC80211_MPL_DEBUG 1
+#else
+#define MAC80211_MPL_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MPATH_DEBUG
+#define MAC80211_MPATH_DEBUG 1
+#else
+#define MAC80211_MPATH_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MHWMP_DEBUG
+#define MAC80211_MHWMP_DEBUG 1
+#else
+#define MAC80211_MHWMP_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MESH_SYNC_DEBUG
+#define MAC80211_MESH_SYNC_DEBUG 1
+#else
+#define MAC80211_MESH_SYNC_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MESH_CSA_DEBUG
+#define MAC80211_MESH_CSA_DEBUG 1
+#else
+#define MAC80211_MESH_CSA_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MESH_PS_DEBUG
+#define MAC80211_MESH_PS_DEBUG 1
+#else
+#define MAC80211_MESH_PS_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_TDLS_DEBUG
+#define MAC80211_TDLS_DEBUG 1
+#else
+#define MAC80211_TDLS_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_STA_DEBUG
+#define MAC80211_STA_DEBUG 1
+#else
+#define MAC80211_STA_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MLME_DEBUG
+#define MAC80211_MLME_DEBUG 1
+#else
+#define MAC80211_MLME_DEBUG 0
+#endif
+
+#ifdef CONFIG_MAC80211_MESSAGE_TRACING
+void __sdata_info(const char *fmt, ...) __printf(1, 2);
+void __sdata_dbg(bool print, const char *fmt, ...) __printf(2, 3);
+void __sdata_err(const char *fmt, ...) __printf(1, 2);
+void __wiphy_dbg(struct wiphy *wiphy, bool print, const char *fmt, ...)
+	__printf(3, 4);
+
+#define _sdata_info(sdata, fmt, ...)					\
+	__sdata_info("%s: " fmt, (sdata)->name, ##__VA_ARGS__)
+#define _sdata_dbg(print, sdata, fmt, ...)				\
+	__sdata_dbg(print, "%s: " fmt, (sdata)->name, ##__VA_ARGS__)
+#define _sdata_err(sdata, fmt, ...)					\
+	__sdata_err("%s: " fmt, (sdata)->name, ##__VA_ARGS__)
+#define _wiphy_dbg(print, wiphy, fmt, ...)				\
+	__wiphy_dbg(wiphy, print, fmt, ##__VA_ARGS__)
+#else
+#define _sdata_info(sdata, fmt, ...)					\
+do {									\
+	pr_info("%s: " fmt,						\
+		(sdata)->name, ##__VA_ARGS__);				\
+} while (0)
+
+#define _sdata_dbg(print, sdata, fmt, ...)				\
+do {									\
+	if (print)							\
+		pr_debug("%s: " fmt,					\
+			 (sdata)->name, ##__VA_ARGS__);			\
+} while (0)
+
+#define _sdata_err(sdata, fmt, ...)					\
+do {									\
+	pr_err("%s: " fmt,						\
+	       (sdata)->name, ##__VA_ARGS__);				\
+} while (0)
+
+#define _wiphy_dbg(print, wiphy, fmt, ...)				\
+do {									\
+	if (print)							\
+		wiphy_dbg((wiphy), fmt, ##__VA_ARGS__);			\
+} while (0)
+#endif
+
+#define sdata_info(sdata, fmt, ...)					\
+	_sdata_info(sdata, fmt, ##__VA_ARGS__)
+#define sdata_err(sdata, fmt, ...)					\
+	_sdata_err(sdata, fmt, ##__VA_ARGS__)
+#define sdata_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(1, sdata, fmt, ##__VA_ARGS__)
+
+#define ht_dbg(sdata, fmt, ...)						\
+	_sdata_dbg(MAC80211_HT_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define ht_dbg_ratelimited(sdata, fmt, ...)				\
+	_sdata_dbg(MAC80211_HT_DEBUG && net_ratelimit(),		\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define ocb_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_OCB_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define ibss_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_IBSS_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define ps_dbg(sdata, fmt, ...)						\
+	_sdata_dbg(MAC80211_PS_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define ps_dbg_hw(hw, fmt, ...)						\
+	_wiphy_dbg(MAC80211_PS_DEBUG,					\
+		   (hw)->wiphy, fmt, ##__VA_ARGS__)
+
+#define ps_dbg_ratelimited(sdata, fmt, ...)				\
+	_sdata_dbg(MAC80211_PS_DEBUG && net_ratelimit(),		\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define mpl_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MPL_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define mpath_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MPATH_DEBUG,				\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define mhwmp_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MHWMP_DEBUG,				\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define msync_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MESH_SYNC_DEBUG,				\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define mcsa_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MESH_CSA_DEBUG,				\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define mps_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MESH_PS_DEBUG,				\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define tdls_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_TDLS_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define sta_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_STA_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define mlme_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MLME_DEBUG,					\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#define mlme_dbg_ratelimited(sdata, fmt, ...)				\
+	_sdata_dbg(MAC80211_MLME_DEBUG && net_ratelimit(),		\
+		   sdata, fmt, ##__VA_ARGS__)
+
+#endif /* __MAC80211_DEBUG_H */