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Message-ID: <202210140618.pwwBsRCu-lkp@intel.com>
Date: Fri, 14 Oct 2022 06:34:34 +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/tracing_multi_ng_4 13/23]
samples/ftrace/ftrace-direct-set.c:104:9: 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/tracing_multi_ng_4
head: e3fa3b908cc734f85477c07a0ba93480bd80702c
commit: 9b87a14f00b80b0eb8edf9027177af0b09e5b25e [13/23] ftrace/samples: Add a sample module that implements set_ftrace_direct
config: x86_64-rhel-8.3-kselftests
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=9b87a14f00b80b0eb8edf9027177af0b09e5b25e
git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
git fetch --no-tags jolsa-perf bpf/tracing_multi_ng_4
git checkout 9b87a14f00b80b0eb8edf9027177af0b09e5b25e
# 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:104:9: error: implicit declaration of function 'ftrace_test_0'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
104 | ftrace_test_0();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:105:9: error: implicit declaration of function 'ftrace_test_1'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
105 | ftrace_test_1();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:106:9: error: implicit declaration of function 'ftrace_test_2'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
106 | ftrace_test_2();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:107:9: error: implicit declaration of function 'ftrace_test_3'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
107 | ftrace_test_3();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:108:9: error: implicit declaration of function 'ftrace_test_4'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
108 | ftrace_test_4();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:109:9: error: implicit declaration of function 'ftrace_test_5'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
109 | ftrace_test_5();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:110:9: error: implicit declaration of function 'ftrace_test_6'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
110 | ftrace_test_6();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:111:9: error: implicit declaration of function 'ftrace_test_7'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
111 | ftrace_test_7();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:112:9: error: implicit declaration of function 'ftrace_test_8'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
112 | ftrace_test_8();
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:113:9: error: implicit declaration of function 'ftrace_test_9'; did you mean 'ftrace_stub'? [-Werror=implicit-function-declaration]
113 | ftrace_test_9();
| ^~~~~~~~~~~~~
| ftrace_stub
samples/ftrace/ftrace-direct-set.c: In function 'ftrace_direct_set_init':
>> samples/ftrace/ftrace-direct-set.c:136:18: error: 'ftrace_test_0' undeclared (first use in this function); did you mean 'ftrace_stub'?
136 | hash_set(ftrace_test_0, tramp_0);
| ^~~~~~~~~~~~~
| ftrace_stub
samples/ftrace/ftrace-direct-set.c:136:18: note: each undeclared identifier is reported only once for each function it appears in
>> samples/ftrace/ftrace-direct-set.c:137:18: error: 'ftrace_test_1' undeclared (first use in this function); did you mean 'ftrace_stub'?
137 | hash_set(ftrace_test_1, tramp_1);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:158:18: error: 'ftrace_test_2' undeclared (first use in this function); did you mean 'ftrace_stub'?
158 | hash_set(ftrace_test_2, tramp_0);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:159:18: error: 'ftrace_test_3' undeclared (first use in this function); did you mean 'ftrace_stub'?
159 | hash_set(ftrace_test_3, tramp_0);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:160:18: error: 'ftrace_test_4' undeclared (first use in this function); did you mean 'ftrace_stub'?
160 | hash_set(ftrace_test_4, tramp_4);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:161:18: error: 'ftrace_test_5' undeclared (first use in this function); did you mean 'ftrace_stub'?
161 | hash_set(ftrace_test_5, tramp_5);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:162:18: error: 'ftrace_test_6' undeclared (first use in this function); did you mean 'ftrace_stub'?
162 | hash_set(ftrace_test_6, tramp_6);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:163:18: error: 'ftrace_test_7' undeclared (first use in this function); did you mean 'ftrace_stub'?
163 | hash_set(ftrace_test_7, tramp_7);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:164:18: error: 'ftrace_test_8' undeclared (first use in this function); did you mean 'ftrace_stub'?
164 | hash_set(ftrace_test_8, tramp_8);
| ^~~~~~~~~~~~~
| ftrace_stub
>> samples/ftrace/ftrace-direct-set.c:165:18: error: 'ftrace_test_9' undeclared (first use in this function); did you mean 'ftrace_stub'?
165 | hash_set(ftrace_test_9, tramp_9);
| ^~~~~~~~~~~~~
| ftrace_stub
cc1: some warnings being treated as errors
vim +104 samples/ftrace/ftrace-direct-set.c
88
89 static void runall(const char *str)
90 {
91 tramp_0_cnt = 0;
92 tramp_1_cnt = 0;
93 tramp_2_cnt = 0;
94 tramp_3_cnt = 0;
95 tramp_4_cnt = 0;
96 tramp_5_cnt = 0;
97 tramp_6_cnt = 0;
98 tramp_7_cnt = 0;
99 tramp_8_cnt = 0;
100 tramp_9_cnt = 0;
101
102 printk("\nrunning '%s':\n", str);
103
> 104 ftrace_test_0();
> 105 ftrace_test_1();
> 106 ftrace_test_2();
> 107 ftrace_test_3();
> 108 ftrace_test_4();
> 109 ftrace_test_5();
> 110 ftrace_test_6();
> 111 ftrace_test_7();
> 112 ftrace_test_8();
> 113 ftrace_test_9();
114
115 printk(" result: %d%d%d%d%d%d%d%d%d%d\n\n",
116 tramp_0_cnt,
117 tramp_1_cnt,
118 tramp_2_cnt,
119 tramp_3_cnt,
120 tramp_4_cnt,
121 tramp_5_cnt,
122 tramp_6_cnt,
123 tramp_7_cnt,
124 tramp_8_cnt,
125 tramp_9_cnt);
126 }
127
128 static int __init ftrace_direct_set_init(void)
129 {
130 int err;
131
132 hash = ftrace_hash_alloc(FTRACE_HASH_DEFAULT_BITS);
133 if (!hash)
134 return -ENOMEM;
135
> 136 hash_set(ftrace_test_0, tramp_0);
> 137 hash_set(ftrace_test_1, tramp_1);
138 hash_printk();
139
140 err = set_ftrace_direct(hash);
141 if (err)
142 goto out_free;
143
144 runall("tramp_0|1");
145
146 hash_set(ftrace_test_0, tramp_2);
147 hash_set(ftrace_test_1, tramp_3);
148 hash_printk();
149
150 err = set_ftrace_direct(hash);
151 if (err)
152 goto out_free;
153
154 runall("tramp_2|3");
155
156 hash_set(ftrace_test_0, tramp_0);
157 hash_set(ftrace_test_1, tramp_0);
> 158 hash_set(ftrace_test_2, tramp_0);
> 159 hash_set(ftrace_test_3, tramp_0);
> 160 hash_set(ftrace_test_4, tramp_4);
> 161 hash_set(ftrace_test_5, tramp_5);
> 162 hash_set(ftrace_test_6, tramp_6);
> 163 hash_set(ftrace_test_7, tramp_7);
> 164 hash_set(ftrace_test_8, tramp_8);
> 165 hash_set(ftrace_test_9, tramp_9);
166 hash_printk();
167
168 err = set_ftrace_direct(hash);
169 if (err)
170 goto out_free;
171
172 runall("tramp_0(4)|4|5|6|7|8|9");
173
174 hash_set(ftrace_test_0, tramp_1);
175 hash_set(ftrace_test_1, tramp_1);
176 hash_set(ftrace_test_2, tramp_1);
177 hash_set(ftrace_test_3, tramp_2);
178 hash_set(ftrace_test_4, tramp_2);
179 hash_set(ftrace_test_5, tramp_2);
180 hash_set(ftrace_test_6, tramp_3);
181 hash_set(ftrace_test_7, tramp_3);
182 hash_set(ftrace_test_8, tramp_3);
183 hash_set(ftrace_test_9, tramp_4);
184 hash_printk();
185
186 err = set_ftrace_direct(hash);
187 if (err)
188 goto out_free;
189
190 runall("tramp_1(3)|2(3)|3(3)|4");
191 return 0;
192
193 out_free:
194 ftrace_hash_free(hash);
195 return -ENOMEM;
196 }
197
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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