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Date: Tue, 12 Jul 2022 01:07:02 +0800
From: kernel test robot <lkp@...el.com>
To: Jiri Olsa <jolsa@...nel.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [jolsa-perf:bpf/tramp_29 10/32]
samples/ftrace/ftrace-direct-set.c:101:9: error: implicit declaration of
function 'ftrace_test_0'; did you mean 'ftrace_stub'?
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tramp_29
head: ec522c20e55e48f561146afbb81513e20870ee12
commit: c85abdd3bce521c008055a9741254fc7e6d90017 [10/32] ftrace/samples: Add a sample module that implements set_ftrace_direct
config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20220712/202207120003.bGKOxSi0-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=c85abdd3bce521c008055a9741254fc7e6d90017
git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
git fetch --no-tags jolsa-perf bpf/tramp_29
git checkout c85abdd3bce521c008055a9741254fc7e6d90017
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash samples/ftrace/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
samples/ftrace/ftrace-direct-set.c: In function 'runall':
>> samples/ftrace/ftrace-direct-set.c:101:9: error: implicit declaration of function 'ftrace_test_0'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
101 | ftrace_test_0();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:102:9: error: implicit declaration of function 'ftrace_test_1'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
102 | ftrace_test_1();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:103:9: error: implicit declaration of function 'ftrace_test_2'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
103 | ftrace_test_2();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:104:9: error: implicit declaration of function 'ftrace_test_3'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
104 | ftrace_test_3();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:105:9: error: implicit declaration of function 'ftrace_test_4'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
105 | ftrace_test_4();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:106:9: error: implicit declaration of function 'ftrace_test_5'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
106 | ftrace_test_5();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:107:9: error: implicit declaration of function 'ftrace_test_6'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
107 | ftrace_test_6();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:108:9: error: implicit declaration of function 'ftrace_test_7'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
108 | ftrace_test_7();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:109:9: error: implicit declaration of function 'ftrace_test_8'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
109 | ftrace_test_8();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:110:9: error: implicit declaration of function 'ftrace_test_9'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
110 | ftrace_test_9();
| ^~~~~~~~~~~~~
| ftrace_stub
samples/ftrace/ftrace-direct-set.c: In function 'ftrace_direct_set_init':
>> samples/ftrace/ftrace-direct-set.c:134:18: error: 'ftrace_test_0' undeclared (first use in this function); did you mean 'ftrace_stub'?
134 | hash_set(ftrace_test_0, tramp_0);
| ^~~~~~~~~~~~~
| ftrace_stub
samples/ftrace/ftrace-direct-set.c:134:18: note: each undeclared identifier is reported only once for each function it appears in
>> samples/ftrace/ftrace-direct-set.c:135:18: error: 'ftrace_test_1' undeclared (first use in this function); did you mean 'ftrace_stub'?
135 | hash_set(ftrace_test_1, tramp_1);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:156:18: error: 'ftrace_test_2' undeclared (first use in this function); did you mean 'ftrace_stub'?
156 | hash_set(ftrace_test_2, tramp_0);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:157:18: error: 'ftrace_test_3' undeclared (first use in this function); did you mean 'ftrace_stub'?
157 | hash_set(ftrace_test_3, tramp_0);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:158:18: error: 'ftrace_test_4' undeclared (first use in this function); did you mean 'ftrace_stub'?
158 | hash_set(ftrace_test_4, tramp_4);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:159:18: error: 'ftrace_test_5' undeclared (first use in this function); did you mean 'ftrace_stub'?
159 | hash_set(ftrace_test_5, tramp_5);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:160:18: error: 'ftrace_test_6' undeclared (first use in this function); did you mean 'ftrace_stub'?
160 | hash_set(ftrace_test_6, tramp_6);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:161:18: error: 'ftrace_test_7' undeclared (first use in this function); did you mean 'ftrace_stub'?
161 | hash_set(ftrace_test_7, tramp_7);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:162:18: error: 'ftrace_test_8' undeclared (first use in this function); did you mean 'ftrace_stub'?
162 | hash_set(ftrace_test_8, tramp_8);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:163:18: error: 'ftrace_test_9' undeclared (first use in this function); did you mean 'ftrace_stub'?
163 | hash_set(ftrace_test_9, tramp_9);
| ^~~~~~~~~~~~~
| ftrace_stub
cc1: some warnings being treated as errors
vim +101 samples/ftrace/ftrace-direct-set.c
87
88 static void runall(const char *str)
89 {
90 tramp_0_cnt = 0;
91 tramp_1_cnt = 0;
92 tramp_2_cnt = 0;
93 tramp_3_cnt = 0;
94 tramp_4_cnt = 0;
95 tramp_5_cnt = 0;
96 tramp_6_cnt = 0;
97 tramp_7_cnt = 0;
98 tramp_8_cnt = 0;
99 tramp_9_cnt = 0;
100
> 101 ftrace_test_0();
> 102 ftrace_test_1();
> 103 ftrace_test_2();
> 104 ftrace_test_3();
> 105 ftrace_test_4();
> 106 ftrace_test_5();
> 107 ftrace_test_6();
> 108 ftrace_test_7();
> 109 ftrace_test_8();
> 110 ftrace_test_9();
111
112 printk("%40s - %d%d%d%d%d%d%d%d%d%d\n",
113 str,
114 tramp_0_cnt,
115 tramp_1_cnt,
116 tramp_2_cnt,
117 tramp_3_cnt,
118 tramp_4_cnt,
119 tramp_5_cnt,
120 tramp_6_cnt,
121 tramp_7_cnt,
122 tramp_8_cnt,
123 tramp_9_cnt);
124 }
125
126 static int __init ftrace_direct_set_init(void)
127 {
128 int err;
129
130 hash = ftrace_hash_alloc(FTRACE_HASH_DEFAULT_BITS);
131 if (!hash)
132 return -ENOMEM;
133
> 134 hash_set(ftrace_test_0, tramp_0);
> 135 hash_set(ftrace_test_1, tramp_1);
136 hash_printk();
137
138 err = set_ftrace_direct(hash);
139 if (err)
140 goto out_free;
141
142 runall("tramp_0|1");
143
144 hash_set(ftrace_test_0, tramp_2);
145 hash_set(ftrace_test_1, tramp_3);
146 hash_printk();
147
148 err = set_ftrace_direct(hash);
149 if (err)
150 goto out_free;
151
152 runall("tramp_2|3");
153
154 hash_set(ftrace_test_0, tramp_0);
155 hash_set(ftrace_test_1, tramp_0);
> 156 hash_set(ftrace_test_2, tramp_0);
> 157 hash_set(ftrace_test_3, tramp_0);
> 158 hash_set(ftrace_test_4, tramp_4);
> 159 hash_set(ftrace_test_5, tramp_5);
> 160 hash_set(ftrace_test_6, tramp_6);
> 161 hash_set(ftrace_test_7, tramp_7);
> 162 hash_set(ftrace_test_8, tramp_8);
> 163 hash_set(ftrace_test_9, tramp_9);
164 hash_printk();
165
166 err = set_ftrace_direct(hash);
167 if (err)
168 goto out_free;
169
170 runall("tramp_0(4)|4|5|6|7|8|9");
171
172 hash_set(ftrace_test_0, tramp_1);
173 hash_set(ftrace_test_1, tramp_1);
174 hash_set(ftrace_test_2, tramp_1);
175 hash_set(ftrace_test_3, tramp_2);
176 hash_set(ftrace_test_4, tramp_2);
177 hash_set(ftrace_test_5, tramp_2);
178 hash_set(ftrace_test_6, tramp_3);
179 hash_set(ftrace_test_7, tramp_3);
180 hash_set(ftrace_test_8, tramp_3);
181 hash_set(ftrace_test_9, tramp_4);
182 hash_printk();
183
184 err = set_ftrace_direct(hash);
185 if (err)
186 goto out_free;
187
188 runall("tramp_1(3)|2(3)|3(3)|4");
189 return 0;
190
191 out_free:
192 ftrace_hash_free(hash);
193 return -ENOMEM;
194 }
195
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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