Date:   Wed, 3 Aug 2022 23:56:24 +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_4 33/35]
 kernel/trace/ftrace.c:5265:27: sparse: sparse: symbol
 'ftrace_find_direct_func_list' was not declared. Should it be static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tracing_multi_4
head:   a63fc296e166a76b3f7250a966df4651e3a846f1
commit: 0443659a9eb5312f4b7cbc9c3157b34b17677b22 [33/35] ftrace: Factor list functions for ftrace_direct_func find and alloc
config: i386-randconfig-s003-20220801 (https://download.01.org/0day-ci/archive/20220803/202208032349.JwjNL8VQ-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=0443659a9eb5312f4b7cbc9c3157b34b17677b22
        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_4
        git checkout 0443659a9eb5312f4b7cbc9c3157b34b17677b22
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash kernel/trace/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

sparse warnings: (new ones prefixed by >>)
   kernel/trace/ftrace.c:116:59: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@     got struct ftrace_ops * @@
   kernel/trace/ftrace.c:116:59: sparse:     expected struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list
   kernel/trace/ftrace.c:116:59: sparse:     got struct ftrace_ops *
   kernel/trace/ftrace.c:195:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_ops *ops @@     got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@
   kernel/trace/ftrace.c:195:49: sparse:     expected struct ftrace_ops *ops
   kernel/trace/ftrace.c:195:49: sparse:     got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list
   kernel/trace/ftrace.c:278:23: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops [noderef] __rcu * @@     got struct ftrace_ops * @@
   kernel/trace/ftrace.c:278:23: sparse:     expected struct ftrace_ops [noderef] __rcu *
   kernel/trace/ftrace.c:278:23: sparse:     got struct ftrace_ops *
   kernel/trace/ftrace.c:282:16: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops **p @@     got struct ftrace_ops [noderef] __rcu **list @@
   kernel/trace/ftrace.c:282:16: sparse:     expected struct ftrace_ops **p
   kernel/trace/ftrace.c:282:16: sparse:     got struct ftrace_ops [noderef] __rcu **list
   kernel/trace/ftrace.c:282:50: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops **p @@     got struct ftrace_ops [noderef] __rcu ** @@
   kernel/trace/ftrace.c:282:50: sparse:     expected struct ftrace_ops **p
   kernel/trace/ftrace.c:282:50: sparse:     got struct ftrace_ops [noderef] __rcu **
   kernel/trace/ftrace.c:289:12: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops * @@     got struct ftrace_ops [noderef] __rcu *next @@
   kernel/trace/ftrace.c:289:12: sparse:     expected struct ftrace_ops *
   kernel/trace/ftrace.c:289:12: sparse:     got struct ftrace_ops [noderef] __rcu *next
   kernel/trace/ftrace.c:1031:43: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct ftrace_hash [noderef] __rcu *notrace_hash @@     got struct ftrace_hash * @@
   kernel/trace/ftrace.c:1031:43: sparse:     expected struct ftrace_hash [noderef] __rcu *notrace_hash
   kernel/trace/ftrace.c:1031:43: sparse:     got struct ftrace_hash *
   kernel/trace/ftrace.c:1032:43: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct ftrace_hash [noderef] __rcu *filter_hash @@     got struct ftrace_hash * @@
   kernel/trace/ftrace.c:1032:43: sparse:     expected struct ftrace_hash [noderef] __rcu *filter_hash
   kernel/trace/ftrace.c:1032:43: sparse:     got struct ftrace_hash *
   kernel/trace/ftrace.c:1259:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:1259:40: sparse:     expected struct ftrace_hash *hash
   kernel/trace/ftrace.c:1259:40: sparse:     got struct ftrace_hash [noderef] __rcu *filter_hash
   kernel/trace/ftrace.c:1260:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:1260:40: sparse:     expected struct ftrace_hash *hash
   kernel/trace/ftrace.c:1260:40: sparse:     got struct ftrace_hash [noderef] __rcu *notrace_hash
   kernel/trace/ftrace.c:2025:54: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct ftrace_hash *old_hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:2025:54: sparse:     expected struct ftrace_hash *old_hash
   kernel/trace/ftrace.c:2025:54: sparse:     got struct ftrace_hash [noderef] __rcu *filter_hash
   kernel/trace/ftrace.c:1454:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/ftrace.c:1454:9: sparse:    struct ftrace_hash [noderef] __rcu *
   kernel/trace/ftrace.c:1454:9: sparse:    struct ftrace_hash *
   kernel/trace/ftrace.c:1470:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:1471:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:1472:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:1473:42: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:1644:18: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops *ops @@     got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@
   kernel/trace/ftrace.c:1645:43: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops *ops @@     got struct ftrace_ops [noderef] __rcu *next @@
   kernel/trace/ftrace.c:1693:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:1694:28: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *other_hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:1699:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:1700:28: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *other_hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:3147:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:3148:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:3152:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:2003:50: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:2014:50: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:3365:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:3382:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:3962:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:3965:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:4389:27: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:4391:27: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:4764:19: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:4908:19: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:4914:34: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash [noderef] __rcu *filter_hash @@     got struct ftrace_hash *[assigned] old_hash @@
   kernel/trace/ftrace.c:5188:27: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:5190:27: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
>> kernel/trace/ftrace.c:5265:27: sparse: sparse: symbol 'ftrace_find_direct_func_list' was not declared. Should it be static?
   kernel/trace/ftrace.c:5458:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:5659:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:5661:22: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:5815:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:5877:50: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:5925:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:6270:35: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:6274:35: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash **orig_hash @@     got struct ftrace_hash [noderef] __rcu ** @@
   kernel/trace/ftrace.c:6978:18: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops *ops @@     got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@
   kernel/trace/ftrace.c:6978:66: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_ops *ops @@     got struct ftrace_ops [noderef] __rcu *next @@
   kernel/trace/ftrace.c:7030:59: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:7031:59: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:7413:62: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:7414:62: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:7459:36: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/ftrace.c:7459:36: sparse:    struct ftrace_ops [noderef] __rcu *
   kernel/trace/ftrace.c:7459:36: sparse:    struct ftrace_ops *
   kernel/trace/ftrace.c:8234:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:8234:14: sparse:     expected struct ftrace_hash *hash
   kernel/trace/ftrace.c:8234:14: sparse:     got struct ftrace_hash [noderef] __rcu *filter_hash
   kernel/trace/ftrace.c:8283:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:8283:14: sparse:     expected struct ftrace_hash *hash
   kernel/trace/ftrace.c:8283:14: sparse:     got struct ftrace_hash [noderef] __rcu *filter_hash
   kernel/trace/ftrace.c:193:20: sparse: sparse: dereference of noderef expression
   kernel/trace/ftrace.c:193:20: sparse: sparse: dereference of noderef expression
   kernel/trace/ftrace.c:193:20: sparse: sparse: dereference of noderef expression
   kernel/trace/ftrace.c:3124:48: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *filter_hash @@
   kernel/trace/ftrace.c:3124:48: sparse:     expected struct ftrace_hash *hash
   kernel/trace/ftrace.c:3124:48: sparse:     got struct ftrace_hash [noderef] __rcu *filter_hash
   kernel/trace/ftrace.c:3125:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct ftrace_hash *hash @@     got struct ftrace_hash [noderef] __rcu *notrace_hash @@
   kernel/trace/ftrace.c:3125:49: sparse:     expected struct ftrace_hash *hash
   kernel/trace/ftrace.c:3125:49: sparse:     got struct ftrace_hash [noderef] __rcu *notrace_hash

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