1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/include/linux/sunrpc/debug.h
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Debugging support for sunrpc module
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun #ifndef _LINUX_SUNRPC_DEBUG_H_
10*4882a593Smuzhiyun #define _LINUX_SUNRPC_DEBUG_H_
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <uapi/linux/sunrpc/debug.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun /*
15*4882a593Smuzhiyun * Debugging macros etc
16*4882a593Smuzhiyun */
17*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
18*4882a593Smuzhiyun extern unsigned int rpc_debug;
19*4882a593Smuzhiyun extern unsigned int nfs_debug;
20*4882a593Smuzhiyun extern unsigned int nfsd_debug;
21*4882a593Smuzhiyun extern unsigned int nlm_debug;
22*4882a593Smuzhiyun #endif
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun #define dprintk(fmt, ...) \
25*4882a593Smuzhiyun dfprintk(FACILITY, fmt, ##__VA_ARGS__)
26*4882a593Smuzhiyun #define dprintk_cont(fmt, ...) \
27*4882a593Smuzhiyun dfprintk_cont(FACILITY, fmt, ##__VA_ARGS__)
28*4882a593Smuzhiyun #define dprintk_rcu(fmt, ...) \
29*4882a593Smuzhiyun dfprintk_rcu(FACILITY, fmt, ##__VA_ARGS__)
30*4882a593Smuzhiyun #define dprintk_rcu_cont(fmt, ...) \
31*4882a593Smuzhiyun dfprintk_rcu_cont(FACILITY, fmt, ##__VA_ARGS__)
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #undef ifdebug
34*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
35*4882a593Smuzhiyun # define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac))
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun # define dfprintk(fac, fmt, ...) \
38*4882a593Smuzhiyun do { \
39*4882a593Smuzhiyun ifdebug(fac) \
40*4882a593Smuzhiyun printk(KERN_DEFAULT fmt, ##__VA_ARGS__); \
41*4882a593Smuzhiyun } while (0)
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun # define dfprintk_cont(fac, fmt, ...) \
44*4882a593Smuzhiyun do { \
45*4882a593Smuzhiyun ifdebug(fac) \
46*4882a593Smuzhiyun printk(KERN_CONT fmt, ##__VA_ARGS__); \
47*4882a593Smuzhiyun } while (0)
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun # define dfprintk_rcu(fac, fmt, ...) \
50*4882a593Smuzhiyun do { \
51*4882a593Smuzhiyun ifdebug(fac) { \
52*4882a593Smuzhiyun rcu_read_lock(); \
53*4882a593Smuzhiyun printk(KERN_DEFAULT fmt, ##__VA_ARGS__); \
54*4882a593Smuzhiyun rcu_read_unlock(); \
55*4882a593Smuzhiyun } \
56*4882a593Smuzhiyun } while (0)
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun # define dfprintk_rcu_cont(fac, fmt, ...) \
59*4882a593Smuzhiyun do { \
60*4882a593Smuzhiyun ifdebug(fac) { \
61*4882a593Smuzhiyun rcu_read_lock(); \
62*4882a593Smuzhiyun printk(KERN_CONT fmt, ##__VA_ARGS__); \
63*4882a593Smuzhiyun rcu_read_unlock(); \
64*4882a593Smuzhiyun } \
65*4882a593Smuzhiyun } while (0)
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun # define RPC_IFDEBUG(x) x
68*4882a593Smuzhiyun #else
69*4882a593Smuzhiyun # define ifdebug(fac) if (0)
70*4882a593Smuzhiyun # define dfprintk(fac, fmt, ...) do {} while (0)
71*4882a593Smuzhiyun # define dfprintk_cont(fac, fmt, ...) do {} while (0)
72*4882a593Smuzhiyun # define dfprintk_rcu(fac, fmt, ...) do {} while (0)
73*4882a593Smuzhiyun # define RPC_IFDEBUG(x)
74*4882a593Smuzhiyun #endif
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun /*
77*4882a593Smuzhiyun * Sysctl interface for RPC debugging
78*4882a593Smuzhiyun */
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun struct rpc_clnt;
81*4882a593Smuzhiyun struct rpc_xprt;
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
84*4882a593Smuzhiyun void rpc_register_sysctl(void);
85*4882a593Smuzhiyun void rpc_unregister_sysctl(void);
86*4882a593Smuzhiyun void sunrpc_debugfs_init(void);
87*4882a593Smuzhiyun void sunrpc_debugfs_exit(void);
88*4882a593Smuzhiyun void rpc_clnt_debugfs_register(struct rpc_clnt *);
89*4882a593Smuzhiyun void rpc_clnt_debugfs_unregister(struct rpc_clnt *);
90*4882a593Smuzhiyun void rpc_xprt_debugfs_register(struct rpc_xprt *);
91*4882a593Smuzhiyun void rpc_xprt_debugfs_unregister(struct rpc_xprt *);
92*4882a593Smuzhiyun #else
93*4882a593Smuzhiyun static inline void
sunrpc_debugfs_init(void)94*4882a593Smuzhiyun sunrpc_debugfs_init(void)
95*4882a593Smuzhiyun {
96*4882a593Smuzhiyun return;
97*4882a593Smuzhiyun }
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun static inline void
sunrpc_debugfs_exit(void)100*4882a593Smuzhiyun sunrpc_debugfs_exit(void)
101*4882a593Smuzhiyun {
102*4882a593Smuzhiyun return;
103*4882a593Smuzhiyun }
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun static inline void
rpc_clnt_debugfs_register(struct rpc_clnt * clnt)106*4882a593Smuzhiyun rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
107*4882a593Smuzhiyun {
108*4882a593Smuzhiyun return;
109*4882a593Smuzhiyun }
110*4882a593Smuzhiyun
111*4882a593Smuzhiyun static inline void
rpc_clnt_debugfs_unregister(struct rpc_clnt * clnt)112*4882a593Smuzhiyun rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt)
113*4882a593Smuzhiyun {
114*4882a593Smuzhiyun return;
115*4882a593Smuzhiyun }
116*4882a593Smuzhiyun
117*4882a593Smuzhiyun static inline void
rpc_xprt_debugfs_register(struct rpc_xprt * xprt)118*4882a593Smuzhiyun rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
119*4882a593Smuzhiyun {
120*4882a593Smuzhiyun return;
121*4882a593Smuzhiyun }
122*4882a593Smuzhiyun
123*4882a593Smuzhiyun static inline void
rpc_xprt_debugfs_unregister(struct rpc_xprt * xprt)124*4882a593Smuzhiyun rpc_xprt_debugfs_unregister(struct rpc_xprt *xprt)
125*4882a593Smuzhiyun {
126*4882a593Smuzhiyun return;
127*4882a593Smuzhiyun }
128*4882a593Smuzhiyun #endif
129*4882a593Smuzhiyun
130*4882a593Smuzhiyun #endif /* _LINUX_SUNRPC_DEBUG_H_ */
131