Documentation/.renames.txt: warning: ignored by one of the .gitignore files
../net/mptcp/protocol.c:201:27: warning: variable 'oldval' set but not used [-Wunused-but-set-variable]
  201 |         u32 rcvwin, rcvbuf, cap, oldval;
      |                                  ^
1 warning generated.
../net/ipv4/tcp_input.c:898:27: warning: variable 'oldval' set but not used [-Wunused-but-set-variable]
  898 |         u32 rcvwin, rcvbuf, cap, oldval;
      |                                  ^
1 warning generated.
Documentation/.renames.txt: warning: ignored by one of the .gitignore files