../net/core/sock_map.c:2099:14: warning: variable 'key_prefix' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
 2099 |                 } else if (linfo->map.sock_hash.key_prefix_len) {
      |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../net/core/sock_map.c:2104:30: note: uninitialized use occurs here
 2104 |                 aux->sockhash.key_prefix = key_prefix;
      |                                            ^~~~~~~~~~
../net/core/sock_map.c:2099:10: note: remove the 'if' if its condition is always true
 2099 |                 } else if (linfo->map.sock_hash.key_prefix_len) {
      |                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../net/core/sock_map.c:2073:18: note: initialize the variable 'key_prefix' to silence this warning
 2073 |         void *key_prefix;
      |                         ^
      |                          = NULL
1 warning generated.
../net/core/sock_map.c:2100:14: warning: variable 'key_prefix' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
 2100 |                 } else if (linfo->map.sock_hash.key_prefix_len) {
      |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../net/core/sock_map.c:2105:30: note: uninitialized use occurs here
 2105 |                 aux->sockhash.key_prefix = key_prefix;
      |                                            ^~~~~~~~~~
../net/core/sock_map.c:2100:10: note: remove the 'if' if its condition is always true
 2100 |                 } else if (linfo->map.sock_hash.key_prefix_len) {
      |                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../net/core/sock_map.c:2074:18: note: initialize the variable 'key_prefix' to silence this warning
 2074 |         void *key_prefix;
      |                         ^
      |                          = NULL
1 warning generated.