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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c 
 kernel/fs/cifs/cifs_debug.h
....@@ -1,26 +1,18 @@
1
+/* SPDX-License-Identifier: GPL-2.0-or-later */
12 /*
23  *
34  *   Copyright (c) International Business Machines  Corp., 2000,2002
45  *   Modified by Steve French (sfrench@us.ibm.com)
5
- *
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- *   This program is free software;  you can redistribute it and/or modify
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- *   it under the terms of the GNU General Public License as published by
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- *   the Free Software Foundation; either version 2 of the License, or
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- *   (at your option) any later version.
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- *
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- *   This program is distributed in the hope that it will be useful,
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- *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
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- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
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- *   the GNU General Public License for more details.
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- *
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- *   You should have received a copy of the GNU General Public License
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- *   along with this program;  if not, write to the Free Software
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- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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- *
206 */
217 
228 #ifndef _H_CIFS_DEBUG
239 #define _H_CIFS_DEBUG
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+
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+#ifdef pr_fmt
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+#undef pr_fmt
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+#endif
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+
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+#define pr_fmt(fmt) "CIFS: " fmt
2416 
2517 void cifs_dump_mem(char *label, void *data, int length);
2618 void cifs_dump_detail(void *buf, struct TCP_Server_Info *ptcp_info);
....@@ -47,28 +39,94 @@
4739  */
4840 #ifdef CONFIG_CIFS_DEBUG
4941 
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+
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+/*
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+ * When adding tracepoints and debug messages we have various choices.
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+ * Some considerations:
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+ *
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+ * Use cifs_dbg(VFS, ...) for things we always want logged, and the user to see
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+ *     cifs_info(...) slightly less important, admin can filter via loglevel > 6
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+ *     cifs_dbg(FYI, ...) minor debugging messages, off by default
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+ *     trace_smb3_*  ftrace functions are preferred for complex debug messages
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+ *                 intended for developers or experienced admins, off by default
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+ */
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+
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+/* Information level messages, minor events */
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+#define cifs_info_func(ratefunc, fmt, ...)				\
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+	pr_info_ ## ratefunc(fmt, ##__VA_ARGS__)
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+
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+#define cifs_info(fmt, ...)						\
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+	cifs_info_func(ratelimited, fmt, ##__VA_ARGS__)
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+
5061 /* information message: e.g., configuration, major event */
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-#define cifs_dbg_func(ratefunc, type, fmt, ...)			\
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-do {								\
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-	if ((type) & FYI && cifsFYI & CIFS_INFO) {		\
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-		pr_debug_ ## ratefunc("%s: "			\
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-				fmt, __FILE__, ##__VA_ARGS__);	\
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-	} else if ((type) & VFS) {				\
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-		pr_err_ ## ratefunc("CIFS VFS: "		\
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-				 fmt, ##__VA_ARGS__);		\
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-	} else if ((type) & NOISY && (NOISY != 0)) {		\
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-		pr_debug_ ## ratefunc(fmt, ##__VA_ARGS__);	\
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-	}							\
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+#define cifs_dbg_func(ratefunc, type, fmt, ...)				\
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+do {									\
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+	if ((type) & FYI && cifsFYI & CIFS_INFO) {			\
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+		pr_debug_ ## ratefunc("%s: " fmt,			\
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+				      __FILE__, ##__VA_ARGS__);		\
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+	} else if ((type) & VFS) {					\
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+		pr_err_ ## ratefunc("VFS: " fmt, ##__VA_ARGS__);	\
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+	} else if ((type) & NOISY && (NOISY != 0)) {			\
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+		pr_debug_ ## ratefunc(fmt, ##__VA_ARGS__);		\
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+	}								\
6272 } while (0)
6373 
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-#define cifs_dbg(type, fmt, ...) \
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-do {							\
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-	if ((type) & ONCE)				\
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-		cifs_dbg_func(once,			\
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-			 type, fmt, ##__VA_ARGS__);	\
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-	else						\
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-		cifs_dbg_func(ratelimited,		\
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-			type, fmt, ##__VA_ARGS__);	\
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+#define cifs_dbg(type, fmt, ...)					\
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+do {									\
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+	if ((type) & ONCE)						\
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+		cifs_dbg_func(once, type, fmt, ##__VA_ARGS__);		\
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+	else								\
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+		cifs_dbg_func(ratelimited, type, fmt, ##__VA_ARGS__);	\
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+} while (0)
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+
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+#define cifs_server_dbg_func(ratefunc, type, fmt, ...)			\
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+do {									\
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+	const char *sn = "";						\
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+	if (server && server->hostname)					\
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+		sn = server->hostname;					\
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+	if ((type) & FYI && cifsFYI & CIFS_INFO) {			\
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+		pr_debug_ ## ratefunc("%s: \\\\%s " fmt,		\
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+				      __FILE__, sn, ##__VA_ARGS__);	\
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+	} else if ((type) & VFS) {					\
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+		pr_err_ ## ratefunc("VFS: \\\\%s " fmt,			\
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+				    sn, ##__VA_ARGS__);			\
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+	} else if ((type) & NOISY && (NOISY != 0)) {			\
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+		pr_debug_ ## ratefunc("\\\\%s " fmt,			\
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+				      sn, ##__VA_ARGS__);		\
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+	}								\
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+} while (0)
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+
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+#define cifs_server_dbg(type, fmt, ...)					\
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+do {									\
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+	if ((type) & ONCE)						\
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+		cifs_server_dbg_func(once, type, fmt, ##__VA_ARGS__);	\
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+	else								\
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+		cifs_server_dbg_func(ratelimited, type, fmt,		\
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+				     ##__VA_ARGS__);			\
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+} while (0)
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+
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+#define cifs_tcon_dbg_func(ratefunc, type, fmt, ...)			\
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+do {									\
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+	const char *tn = "";						\
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+	if (tcon && tcon->treeName)					\
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+		tn = tcon->treeName;					\
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+	if ((type) & FYI && cifsFYI & CIFS_INFO) {			\
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+		pr_debug_ ## ratefunc("%s: %s "	fmt,			\
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+				      __FILE__, tn, ##__VA_ARGS__);	\
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+	} else if ((type) & VFS) {					\
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+		pr_err_ ## ratefunc("VFS: %s " fmt, tn, ##__VA_ARGS__);	\
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+	} else if ((type) & NOISY && (NOISY != 0)) {			\
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+		pr_debug_ ## ratefunc("%s " fmt, tn, ##__VA_ARGS__);	\
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+	}								\
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+} while (0)
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+
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+#define cifs_tcon_dbg(type, fmt, ...)					\
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+do {									\
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+	if ((type) & ONCE)						\
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+		cifs_tcon_dbg_func(once, type, fmt, ##__VA_ARGS__);	\
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+	else								\
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+		cifs_tcon_dbg_func(ratelimited, type, fmt,		\
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+				   ##__VA_ARGS__);			\
72130 } while (0)
73131 
74132 /*
....@@ -81,6 +139,22 @@
81139 	if (0)								\
82140 		pr_debug(fmt, ##__VA_ARGS__);				\
83141 } while (0)
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+
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+#define cifs_server_dbg(type, fmt, ...)					\
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+do {									\
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+	if (0)								\
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+		pr_debug("\\\\%s " fmt,					\
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+			 server->hostname, ##__VA_ARGS__);		\
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+} while (0)
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+
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+#define cifs_tcon_dbg(type, fmt, ...)					\
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+do {									\
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+	if (0)								\
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+		pr_debug("%s " fmt, tcon->treeName, ##__VA_ARGS__);	\
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+} while (0)
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+
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+#define cifs_info(fmt, ...)						\
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+	pr_info(fmt, ##__VA_ARGS__)
84158 #endif
85159 
86160 #endif				/* _H_CIFS_DEBUG */