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Subject../include/futex2test.h:18:47: warning: 'struct futex_waitv' declared inside parameter list will not be visible outside of this definition or declaration
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ca85855bdcae8f84f1512e88b4c75009ea17ea2f
commit: 5e59c1d1c78c9cdd8834f3242db4a76f617fa4ad selftests: futex: Add sys_futex_waitv() test
date: 10 months ago
reproduce: make O=/tmp/kselftest -C tools/testing/selftests

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

All warnings (new ones prefixed by >>):

In file included from futex_waitv.c:19:
>> ../include/futex2test.h:18:47: warning: 'struct futex_waitv' declared inside parameter list will not be visible outside of this definition or declaration
18 | static inline int futex_waitv(volatile struct futex_waitv *waiters, unsigned long nr_waiters,
| ^~~~~~~~~~~
../include/futex2test.h: In function 'futex_waitv':
../include/futex2test.h:21:24: error: '__NR_futex_waitv' undeclared (first use in this function); did you mean 'futex_waitv'?
21 | return syscall(__NR_futex_waitv, waiters, nr_waiters, flags, timo, clockid);
| ^~~~~~~~~~~~~~~~
| futex_waitv
../include/futex2test.h:21:24: note: each undeclared identifier is reported only once for each function it appears in
futex_waitv.c: At top level:
futex_waitv.c:25:27: error: array type has incomplete element type 'struct futex_waitv'
25 | static struct futex_waitv waitv[NR_FUTEXES];
| ^~~~~
futex_waitv.c: In function 'main':
futex_waitv.c:91:34: error: 'FUTEX_32' undeclared (first use in this function); did you mean 'FUTEX_OP'?
91 | waitv[i].flags = FUTEX_32 | FUTEX_PRIVATE_FLAG;
| ^~~~~~~~
| FUTEX_OP
In file included from futex_waitv.c:19:
../include/futex2test.h: In function 'futex_waitv':
>> ../include/futex2test.h:22:1: warning: control reaches end of non-void function [-Wreturn-type]
22 | }
| ^
At top level:
>> futex_waitv.c:25:27: warning: 'waitv' defined but not used [-Wunused-variable]
25 | static struct futex_waitv waitv[NR_FUTEXES];
| ^~~~~

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