[legion:sysctls-v3 22/30] net/rds/tcp.c:572:28: warning: unused variable 'ctx'

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/legion/linux.git sysctls-v3
head:   b5c5a5b075f61f062cb2d253d35c118b8eecc40b
commit: aa01e0152a5063570b31fe61af5cb16eaa895a7b [22/30] sysctl: net: use ctl_field in RDS sysctls
config: arm-randconfig-003-20260814 (https://download.01.org/0day-ci/archive/20260814/202608141345.mpAz9iys-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260814/202608141345.mpAz9iys-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/oe-kbuild-all/202608141345.mpAz9iys-lkp@intel.com/

All warnings (new ones prefixed by >>):

   net/rds/tcp.c: In function 'rds_tcp_init_net':
>> net/rds/tcp.c:572:28: warning: unused variable 'ctx' [-Wunused-variable]
     572 |         struct ctl_context ctx = {
         |                            ^~~
   net/rds/tcp.c: At top level:
>> net/rds/tcp.c:114:31: warning: 'rds_tcp_sysctl_table' defined but not used [-Wunused-const-variable=]
     114 | static const struct ctl_field rds_tcp_sysctl_table[] = {
         |                               ^~~~~~~~~~~~~~~~~~~~


vim +/ctx +572 net/rds/tcp.c

   569	
   570	static __net_init int rds_tcp_init_net(struct net *net)
   571	{
 > 572		struct ctl_context ctx = {
   573			.ns.net_ns = net,
   574		};
   575		struct rds_tcp_net *rtn = net_generic(net, rds_tcp_netid);
   576		int err = 0;
   577	
   578		memset(rtn, 0, sizeof(*rtn));
   579	
   580		mutex_init(&rtn->rds_tcp_accept_lock);
   581	

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