tree: https://github.com/jsarha/linux topic/cros-sof-v4.19 head: d7a3e91d8d16d1ef8653deec5a1fffc4de034a0c commit: 1183bbba7c80acfb5ab39443e9401c47c8ed153b [238/6555] ANDROID: ftrace: fix function type mismatches config: x86_64-randconfig-s021-20221128 compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/jsarha/linux/commit/1183bbba7c80acfb5ab39443e9401c47c8ed153b git remote add jsarha https://github.com/jsarha/linux git fetch --no-tags jsarha topic/cros-sof-v4.19 git checkout 1183bbba7c80acfb5ab39443e9401c47c8ed153b # 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=x86_64 SHELL=/bin/bash kernel/trace/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) kernel/trace/ftrace.c:1678:22: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:1679:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *other_hash @@ got struct ftrace_hash [noderef] *notrace_hash @@ kernel/trace/ftrace.c:1679:28: sparse: expected struct ftrace_hash *other_hash kernel/trace/ftrace.c:1679:28: sparse: got struct ftrace_hash [noderef] *notrace_hash kernel/trace/ftrace.c:1684:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *notrace_hash @@ kernel/trace/ftrace.c:1684:22: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:1684:22: sparse: got struct ftrace_hash [noderef] *notrace_hash kernel/trace/ftrace.c:1685:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *other_hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:1685:28: sparse: expected struct ftrace_hash *other_hash kernel/trace/ftrace.c:1685:28: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:1936:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:1936:50: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:1936:50: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:1947:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:1947:50: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:1947:50: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:3021:24: sparse: sparse: Using plain integer as NULL pointer kernel/trace/ftrace.c:3113:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:3113:14: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:3113:14: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:3122:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:3122:22: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:3122:22: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:3574:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *notrace_hash @@ kernel/trace/ftrace.c:3574:22: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:3574:22: sparse: got struct ftrace_hash [noderef] *notrace_hash kernel/trace/ftrace.c:3577:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:3577:22: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:3577:22: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:3941:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:3941:27: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:3941:27: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:3943:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:3943:27: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:3943:27: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:4308:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:4308:19: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:4308:19: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:4445:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:4445:19: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:4445:19: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:4451:34: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash [noderef] *filter_hash @@ got struct ftrace_hash *[assigned] old_hash @@ kernel/trace/ftrace.c:4451:34: sparse: expected struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:4451:34: sparse: got struct ftrace_hash *[assigned] old_hash kernel/trace/ftrace.c:4703:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:4703:27: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:4703:27: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:4705:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:4705:27: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:4705:27: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:4742:37: sparse: sparse: Using plain integer as NULL pointer kernel/trace/ftrace.c:4989:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:4989:35: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:4989:35: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:4993:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] ** @@ kernel/trace/ftrace.c:4993:35: sparse: expected struct ftrace_hash **orig_hash kernel/trace/ftrace.c:4993:35: sparse: got struct ftrace_hash [noderef] ** kernel/trace/ftrace.c:5110:29: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/trace/ftrace.c:5110:29: sparse: struct ftrace_hash [noderef] * kernel/trace/ftrace.c:5110:29: sparse: struct ftrace_hash * kernel/trace/ftrace.c:5113:29: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/trace/ftrace.c:5113:29: sparse: struct ftrace_hash [noderef] * kernel/trace/ftrace.c:5113:29: sparse: struct ftrace_hash * kernel/trace/ftrace.c:5227:21: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/trace/ftrace.c:5227:21: sparse: struct ftrace_hash [noderef] * kernel/trace/ftrace.c:5227:21: sparse: struct ftrace_hash * kernel/trace/ftrace.c:5255:21: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/trace/ftrace.c:5255:21: sparse: struct ftrace_hash [noderef] * kernel/trace/ftrace.c:5255:21: sparse: struct ftrace_hash * kernel/trace/ftrace.c:5306:36: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/trace/ftrace.c:5306:36: sparse: struct ftrace_hash [noderef] * kernel/trace/ftrace.c:5306:36: sparse: struct ftrace_hash * kernel/trace/ftrace.c:5310:36: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/trace/ftrace.c:5310:36: sparse: struct ftrace_hash [noderef] * kernel/trace/ftrace.c:5310:36: sparse: struct ftrace_hash * kernel/trace/ftrace.c:5629:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops *ops @@ got struct ftrace_ops [noderef] *static [addressable] [toplevel] ftrace_ops_list @@ kernel/trace/ftrace.c:5629:18: sparse: expected struct ftrace_ops *ops kernel/trace/ftrace.c:5629:18: sparse: got struct ftrace_ops [noderef] *static [addressable] [toplevel] ftrace_ops_list kernel/trace/ftrace.c:5629:66: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops *ops @@ got struct ftrace_ops [noderef] *next @@ kernel/trace/ftrace.c:5629:66: sparse: expected struct ftrace_ops *ops kernel/trace/ftrace.c:5629:66: sparse: got struct ftrace_ops [noderef] *next kernel/trace/ftrace.c:5670:59: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:5670:59: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:5670:59: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:5671:59: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *notrace_hash @@ kernel/trace/ftrace.c:5671:59: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:5671:59: sparse: got struct ftrace_hash [noderef] *notrace_hash kernel/trace/ftrace.c:6028:62: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:6028:62: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:6028:62: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:6029:62: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *notrace_hash @@ kernel/trace/ftrace.c:6029:62: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:6029:62: sparse: got struct ftrace_hash [noderef] *notrace_hash kernel/trace/ftrace.c:6075:36: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/trace/ftrace.c:6075:36: sparse: struct ftrace_ops [noderef] * kernel/trace/ftrace.c:6075:36: sparse: struct ftrace_ops * >> kernel/trace/ftrace.c:6776:6: sparse: sparse: symbol 'ftrace_graph_return_stub' was not declared. Should it be static? kernel/trace/ftrace.c:236:20: sparse: sparse: dereference of noderef expression kernel/trace/ftrace.c:236:20: sparse: sparse: dereference of noderef expression kernel/trace/ftrace.c:236:20: sparse: sparse: dereference of noderef expression kernel/trace/ftrace.c:2908:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:2908:46: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:2908:46: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:2909:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:2909:47: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:2909:47: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:2913:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *notrace_hash @@ kernel/trace/ftrace.c:2913:44: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:2913:44: sparse: got struct ftrace_hash [noderef] *notrace_hash kernel/trace/ftrace.c:2885:48: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *filter_hash @@ kernel/trace/ftrace.c:2885:48: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:2885:48: sparse: got struct ftrace_hash [noderef] *filter_hash kernel/trace/ftrace.c:2886:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] *notrace_hash @@ kernel/trace/ftrace.c:2886:49: sparse: expected struct ftrace_hash *hash kernel/trace/ftrace.c:2886:49: sparse: got struct ftrace_hash [noderef] *notrace_hash kernel/trace/ftrace.c:2662:13: warning: no previous prototype for 'arch_ftrace_trampoline_free' [-Wmissing-prototypes] 2662 | void __weak arch_ftrace_trampoline_free(struct ftrace_ops *ops) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/ftrace.c:3417:1: warning: no previous prototype for 'arch_ftrace_trampoline_func' [-Wmissing-prototypes] 3417 | arch_ftrace_trampoline_func(struct ftrace_ops *ops, struct dyn_ftrace *rec) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/ftrace.c:3655:15: warning: no previous prototype for 'arch_ftrace_match_adjust' [-Wmissing-prototypes] 3655 | char * __weak arch_ftrace_match_adjust(char *str, const char *search) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/ftrace.c: In function 'process_mod_list': kernel/trace/ftrace.c:3936:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 3936 | int ret; | ^~~ kernel/trace/ftrace.c: In function 'ftrace_regex_release': kernel/trace/ftrace.c:4968:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 4968 | int ret; | ^~~ kernel/trace/ftrace.c: At top level: kernel/trace/ftrace.c:6164:13: warning: no previous prototype for 'arch_ftrace_update_trampoline' [-Wmissing-prototypes] 6164 | void __weak arch_ftrace_update_trampoline(struct ftrace_ops *ops) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/ftrace.c:6776:6: warning: no previous prototype for 'ftrace_graph_return_stub' [-Wmissing-prototypes] 6776 | void ftrace_graph_return_stub(struct ftrace_graph_ret *trace) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/ftrace.c:6780:5: warning: no previous prototype for 'ftrace_graph_entry_stub' [-Wmissing-prototypes] 6780 | int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/ftrace.c:4757: warning: Function parameter or member 'ops' not described in 'ftrace_set_filter_ip' kernel/trace/ftrace.c:4757: warning: Function parameter or member 'ip' not described in 'ftrace_set_filter_ip' kernel/trace/ftrace.c:4757: warning: Function parameter or member 'remove' not described in 'ftrace_set_filter_ip' kernel/trace/ftrace.c:4757: warning: Function parameter or member 'reset' not described in 'ftrace_set_filter_ip' kernel/trace/ftrace.c:4771: warning: Function parameter or member 'ops' not described in 'ftrace_ops_set_global_filter' kernel/trace/ftrace.c:4799: warning: Function parameter or member 'ops' not described in 'ftrace_set_filter' kernel/trace/ftrace.c:4799: warning: Function parameter or member 'buf' not described in 'ftrace_set_filter' kernel/trace/ftrace.c:4799: warning: Function parameter or member 'len' not described in 'ftrace_set_filter' kernel/trace/ftrace.c:4799: warning: Function parameter or member 'reset' not described in 'ftrace_set_filter' kernel/trace/ftrace.c:4818: warning: Function parameter or member 'ops' not described in 'ftrace_set_notrace' kernel/trace/ftrace.c:4818: warning: Function parameter or member 'buf' not described in 'ftrace_set_notrace' kernel/trace/ftrace.c:4818: warning: Function parameter or member 'len' not described in 'ftrace_set_notrace' kernel/trace/ftrace.c:4818: warning: Function parameter or member 'reset' not described in 'ftrace_set_notrace' kernel/trace/ftrace.c:4833: warning: Function parameter or member 'buf' not described in 'ftrace_set_global_filter' kernel/trace/ftrace.c:4833: warning: Function parameter or member 'len' not described in 'ftrace_set_global_filter' kernel/trace/ftrace.c:4833: warning: Function parameter or member 'reset' not described in 'ftrace_set_global_filter' kernel/trace/ftrace.c:4849: warning: Function parameter or member 'buf' not described in 'ftrace_set_global_notrace' kernel/trace/ftrace.c:4849: warning: Function parameter or member 'len' not described in 'ftrace_set_global_notrace' kernel/trace/ftrace.c:4849: warning: Function parameter or member 'reset' not described in 'ftrace_set_global_notrace' kernel/trace/ftrace.c:6678: warning: Function parameter or member 'ops' not described in 'register_ftrace_function' kernel/trace/ftrace.c:6700: warning: Function parameter or member 'ops' not described in 'unregister_ftrace_function' kernel/trace/ftrace.o: warning: objtool: __add_hash_entry()+0x91: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: t_probe_next()+0xa6: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: __g_next()+0xd7: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: alloc_ftrace_hash()+0x40: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_allocate_pages()+0x243: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: hash_contains_ip()+0x33b: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: clear_mod_from_hash()+0x1f0: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: clear_func_from_hash()+0x19e: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: fpid_stop()+0x39: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_find_tramp_ops_any()+0xc9: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_find_tramp_ops_next()+0x55: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: update_function_graph_func()+0xb8: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_pid_follow_sched_process_exit()+0x4a: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_pid_follow_sched_process_fork()+0x4f: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: clear_ftrace_pids()+0x40: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_filter_pid_sched_switch_probe()+0x51: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ignore_task_cpu()+0x43: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: fpid_next()+0x56: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: fpid_start()+0xc5: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: g_start()+0x1d7: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_graph_probe_sched_switch()+0x2c: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: update_ftrace_function()+0xaf: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: __unregister_ftrace_function()+0x10b: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: free_ftrace_hash()+0x4e: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_ops_list_func()+0x1ad: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: __ftrace_hash_move()+0xd6: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: alloc_and_copy_ftrace_hash.constprop.0()+0x265: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_graph_open()+0xf6: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_graph_notrace_open()+0xf6: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_ops_trampoline()+0xca: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_lookup_ip()+0x191: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: referenced_filters()+0x2fe: sibling call from callable instruction with modified stack frame kernel/trace/ftrace.o: warning: objtool: ftrace_hash_rec_update_modify()+0x101: sibling call from callable instruction with modified stack frame vim +/ftrace_graph_return_stub +6776 kernel/trace/ftrace.c 6775 > 6776 void ftrace_graph_return_stub(struct ftrace_graph_ret *trace) 6777 { 6778 } 6779 -- 0-DAY CI Kernel Test Service https://01.org/lkp