../samples/ftrace/ftrace-direct-too.c:243:65: error: too few arguments to function call, expected 3, have 2
  243 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-too.c:248:65: error: too few arguments to function call, expected 4, have 3
  248 |         unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                       ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-too.o] Error 1
make[5]: *** Waiting for unfinished jobs....
../samples/ftrace/ftrace-direct.c:210:65: error: too few arguments to function call, expected 3, have 2
  210 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct.c:215:65: error: too few arguments to function call, expected 4, have 3
  215 |         unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                       ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct.o] Error 1
../samples/ftrace/ftrace-direct-multi.c:228:65: error: too few arguments to function call, expected 3, have 2
  228 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi.c:233:66: error: too few arguments to function call, expected 4, have 3
  233 |         unregister_ftrace_direct(&direct, (unsigned long) my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-multi.o] Error 1
../samples/ftrace/ftrace-direct-modify.c:305:48: error: too few arguments to function call, expected 4, have 2
  305 |                 ret = modify_ftrace_direct(&direct, tramps[t]);
      |                       ~~~~~~~~~~~~~~~~~~~~                   ^
../include/linux/ftrace.h:542:5: note: 'modify_ftrace_direct' declared here
  542 | int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr, bool lock_direct_mutex);
      |     ^                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-modify.c:321:48: error: too few arguments to function call, expected 3, have 2
  321 |         ret = register_ftrace_direct(&direct, my_tramp);
      |               ~~~~~~~~~~~~~~~~~~~~~~                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-modify.c:331:50: error: too few arguments to function call, expected 4, have 3
  331 |         unregister_ftrace_direct(&direct, my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
3 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-modify.o] Error 1
../samples/ftrace/ftrace-direct-multi-modify.c:347:48: error: too few arguments to function call, expected 4, have 2
  347 |                 ret = modify_ftrace_direct(&direct, tramps[t]);
      |                       ~~~~~~~~~~~~~~~~~~~~                   ^
../include/linux/ftrace.h:542:5: note: 'modify_ftrace_direct' declared here
  542 | int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr, bool lock_direct_mutex);
      |     ^                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi-modify.c:365:48: error: too few arguments to function call, expected 3, have 2
  365 |         ret = register_ftrace_direct(&direct, my_tramp);
      |               ~~~~~~~~~~~~~~~~~~~~~~                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi-modify.c:375:50: error: too few arguments to function call, expected 4, have 3
  375 |         unregister_ftrace_direct(&direct, my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
3 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-multi-modify.o] Error 1
make[4]: *** [../scripts/Makefile.build:556: samples/ftrace] Error 2
make[3]: *** [../scripts/Makefile.build:556: samples] Error 2
make[3]: *** Waiting for unfinished jobs....
Warning: ../kernel/trace/ftrace.c:5985 function parameter 'ip' not described in 'register_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6020 function parameter 'ip' not described in 'unregister_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6052 function parameter 'ip' not described in 'modify_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6052 function parameter 'lock_direct_mutex' not described in 'modify_ftrace_direct'
make[2]: *** [/home/nipa/net-next/wt-1/Makefile:2011: .] Error 2
make[1]: *** [/home/nipa/net-next/wt-1/Makefile:248: __sub-make] Error 2
make: *** [Makefile:248: __sub-make] Error 2
../samples/ftrace/ftrace-direct.c:210:65: error: too few arguments to function call, expected 3, have 2
  210 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct.c:215:65: error: too few arguments to function call, expected 4, have 3
  215 |         unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                       ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct.o] Error 1
make[5]: *** Waiting for unfinished jobs....
../samples/ftrace/ftrace-direct-too.c:243:65: error: too few arguments to function call, expected 3, have 2
  243 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-too.c:248:65: error: too few arguments to function call, expected 4, have 3
  248 |         unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                       ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-too.o] Error 1
../samples/ftrace/ftrace-direct-modify.c:305:48: error: too few arguments to function call, expected 4, have 2
  305 |                 ret = modify_ftrace_direct(&direct, tramps[t]);
      |                       ~~~~~~~~~~~~~~~~~~~~                   ^
../include/linux/ftrace.h:542:5: note: 'modify_ftrace_direct' declared here
  542 | int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr, bool lock_direct_mutex);
      |     ^                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-modify.c:321:48: error: too few arguments to function call, expected 3, have 2
  321 |         ret = register_ftrace_direct(&direct, my_tramp);
      |               ~~~~~~~~~~~~~~~~~~~~~~                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-modify.c:331:50: error: too few arguments to function call, expected 4, have 3
  331 |         unregister_ftrace_direct(&direct, my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
3 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-modify.o] Error 1
../samples/ftrace/ftrace-direct-multi.c:228:65: error: too few arguments to function call, expected 3, have 2
  228 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi.c:233:66: error: too few arguments to function call, expected 4, have 3
  233 |         unregister_ftrace_direct(&direct, (unsigned long) my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-multi.o] Error 1
../samples/ftrace/ftrace-direct-multi-modify.c:347:48: error: too few arguments to function call, expected 4, have 2
  347 |                 ret = modify_ftrace_direct(&direct, tramps[t]);
      |                       ~~~~~~~~~~~~~~~~~~~~                   ^
../include/linux/ftrace.h:542:5: note: 'modify_ftrace_direct' declared here
  542 | int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr, bool lock_direct_mutex);
      |     ^                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi-modify.c:365:48: error: too few arguments to function call, expected 3, have 2
  365 |         ret = register_ftrace_direct(&direct, my_tramp);
      |               ~~~~~~~~~~~~~~~~~~~~~~                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi-modify.c:375:50: error: too few arguments to function call, expected 4, have 3
  375 |         unregister_ftrace_direct(&direct, my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
3 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-multi-modify.o] Error 1
make[4]: *** [../scripts/Makefile.build:556: samples/ftrace] Error 2
make[3]: *** [../scripts/Makefile.build:556: samples] Error 2
make[3]: *** Waiting for unfinished jobs....
Warning: ../kernel/trace/ftrace.c:5980 function parameter 'ip' not described in 'register_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6011 function parameter 'ip' not described in 'unregister_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6043 function parameter 'ip' not described in 'modify_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6043 function parameter 'lock_direct_mutex' not described in 'modify_ftrace_direct'
make[2]: *** [/home/nipa/net-next/wt-1/Makefile:2011: .] Error 2
make[1]: *** [/home/nipa/net-next/wt-1/Makefile:248: __sub-make] Error 2
make: *** [Makefile:248: __sub-make] Error 2
../samples/ftrace/ftrace-direct-too.c:243:65: error: too few arguments to function call, expected 3, have 2
  243 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-too.c:248:65: error: too few arguments to function call, expected 4, have 3
  248 |         unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                       ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-too.o] Error 1
make[5]: *** Waiting for unfinished jobs....
../samples/ftrace/ftrace-direct.c:210:65: error: too few arguments to function call, expected 3, have 2
  210 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct.c:215:65: error: too few arguments to function call, expected 4, have 3
  215 |         unregister_ftrace_direct(&direct, (unsigned long)my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                       ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct.o] Error 1
../samples/ftrace/ftrace-direct-multi.c:228:65: error: too few arguments to function call, expected 3, have 2
  228 |         return register_ftrace_direct(&direct, (unsigned long) my_tramp);
      |                ~~~~~~~~~~~~~~~~~~~~~~                                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi.c:233:66: error: too few arguments to function call, expected 4, have 3
  233 |         unregister_ftrace_direct(&direct, (unsigned long) my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
2 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-multi.o] Error 1
../samples/ftrace/ftrace-direct-modify.c:305:48: error: too few arguments to function call, expected 4, have 2
  305 |                 ret = modify_ftrace_direct(&direct, tramps[t]);
      |                       ~~~~~~~~~~~~~~~~~~~~                   ^
../include/linux/ftrace.h:542:5: note: 'modify_ftrace_direct' declared here
  542 | int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr, bool lock_direct_mutex);
      |     ^                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-modify.c:321:48: error: too few arguments to function call, expected 3, have 2
  321 |         ret = register_ftrace_direct(&direct, my_tramp);
      |               ~~~~~~~~~~~~~~~~~~~~~~                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-modify.c:331:50: error: too few arguments to function call, expected 4, have 3
  331 |         unregister_ftrace_direct(&direct, my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
3 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-modify.o] Error 1
../samples/ftrace/ftrace-direct-multi-modify.c:347:48: error: too few arguments to function call, expected 4, have 2
  347 |                 ret = modify_ftrace_direct(&direct, tramps[t]);
      |                       ~~~~~~~~~~~~~~~~~~~~                   ^
../include/linux/ftrace.h:542:5: note: 'modify_ftrace_direct' declared here
  542 | int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr, bool lock_direct_mutex);
      |     ^                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi-modify.c:365:48: error: too few arguments to function call, expected 3, have 2
  365 |         ret = register_ftrace_direct(&direct, my_tramp);
      |               ~~~~~~~~~~~~~~~~~~~~~~                  ^
../include/linux/ftrace.h:539:5: note: 'register_ftrace_direct' declared here
  539 | int register_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr);
      |     ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../samples/ftrace/ftrace-direct-multi-modify.c:375:50: error: too few arguments to function call, expected 4, have 3
  375 |         unregister_ftrace_direct(&direct, my_tramp, true);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~                        ^
../include/linux/ftrace.h:540:5: note: 'unregister_ftrace_direct' declared here
  540 | int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long ip, unsigned long addr,
      |     ^                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  541 |                              bool free_filters);
      |                              ~~~~~~~~~~~~~~~~~
3 errors generated.
make[5]: *** [../scripts/Makefile.build:287: samples/ftrace/ftrace-direct-multi-modify.o] Error 1
make[4]: *** [../scripts/Makefile.build:556: samples/ftrace] Error 2
make[3]: *** [../scripts/Makefile.build:556: samples] Error 2
make[3]: *** Waiting for unfinished jobs....
Warning: ../kernel/trace/ftrace.c:5985 function parameter 'ip' not described in 'register_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6020 function parameter 'ip' not described in 'unregister_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6052 function parameter 'ip' not described in 'modify_ftrace_direct'
Warning: ../kernel/trace/ftrace.c:6052 function parameter 'lock_direct_mutex' not described in 'modify_ftrace_direct'
make[2]: *** [/home/nipa/net-next/wt-1/Makefile:2011: .] Error 2
make[1]: *** [/home/nipa/net-next/wt-1/Makefile:248: __sub-make] Error 2
make: *** [Makefile:248: __sub-make] Error 2