[agraf-2.6:kvm-kho-gmem-test 19/27] lib/kvm_util.c:202:46: warning: unused variable 'region'

[kernel test robot <lkp@intel.com>]

:::::: 
:::::: Manual check reason: "low confidence bisect report"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: kvm-ppc@vger.kernel.org
TO: Alexander Graf <graf@amazon.com>

tree:   https://github.com/agraf/linux-2.6.git kvm-kho-gmem-test
head:   9a58862a298a63bad21d05191e28b857063bb9dc
commit: ea39f95803e6da8a46791922be3724b49bea2c7a [19/27] XXX make fdbox work
:::::: branch date: 35 hours ago
:::::: commit date: 7 weeks ago
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240505/202405050343.ZgfQxdbN-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202405050343.ZgfQxdbN-lkp@intel.com/

All warnings (new ones prefixed by >>):

   lib/kvm_util.c: In function 'vm_open':
>> lib/kvm_util.c:202:46: warning: unused variable 'region' [-Wunused-variable]
     202 |                 struct userspace_mem_region *region;
         |                                              ^~~~~~
>> lib/kvm_util.c:201:36: warning: unused variable 'node' [-Wunused-variable]
     201 |                 struct hlist_node *node;
         |                                    ^~~~
>> lib/kvm_util.c:200:21: warning: unused variable 'ctr' [-Wunused-variable]
     200 |                 int ctr;
         |                     ^~~
   At top level:
   cc1: note: unrecognized command-line option '-Wno-gnu-variable-sized-type-not-at-end' may have been intended to silence earlier diagnostics


vim +/region +202 tools/testing/selftests/kvm/lib/kvm_util.c

ea39f95803e6da Alexander Graf      2024-03-15  191  
ccc82ba6bea451 Sean Christopherson 2022-02-14  192  static void vm_open(struct kvm_vm *vm)
fa3899add1056f Paolo Bonzini       2018-07-26  193  {
ccc82ba6bea451 Sean Christopherson 2022-02-14  194  	vm->kvm_fd = _open_kvm_dev_path_or_exit(O_RDWR);
fa3899add1056f Paolo Bonzini       2018-07-26  195  
7ed397d107d461 Sean Christopherson 2022-05-27  196  	TEST_REQUIRE(kvm_has_cap(KVM_CAP_IMMEDIATE_EXIT));
c68c21ca929771 Paolo Bonzini       2019-04-11  197  
ea39f95803e6da Alexander Graf      2024-03-15  198  	/* XXX HACK! */
ea39f95803e6da Alexander Graf      2024-03-15  199  	if (old_vmfd) {
ea39f95803e6da Alexander Graf      2024-03-15  200  		int ctr;
ea39f95803e6da Alexander Graf      2024-03-15  201  		struct hlist_node *node;
ea39f95803e6da Alexander Graf      2024-03-15 @202  		struct userspace_mem_region *region;
ea39f95803e6da Alexander Graf      2024-03-15  203  
ea39f95803e6da Alexander Graf      2024-03-15  204  		/* Recover old VM fd */
ea39f95803e6da Alexander Graf      2024-03-15  205  		vm->fd = old_vmfd;
ea39f95803e6da Alexander Graf      2024-03-15  206  	} else
fcba483e824628 Sean Christopherson 2022-06-01  207  		vm->fd = __kvm_ioctl(vm->kvm_fd, KVM_CREATE_VM, (void *)vm->type);
f9725f89dc5027 Sean Christopherson 2022-02-15  208  	TEST_ASSERT(vm->fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_VM, vm->fd));
fa3899add1056f Paolo Bonzini       2018-07-26  209  }
fa3899add1056f Paolo Bonzini       2018-07-26  210  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki