Documentation/.renames.txt: warning: ignored by one of the .gitignore files ../net/mptcp/protocol.c: In function ‘mptcp_rcvbuf_grow’: ../net/mptcp/protocol.c:201:34: warning: variable ‘oldval’ set but not used [-Wunused-but-set-variable] 201 | u32 rcvwin, rcvbuf, cap, oldval; | ^~~~~~ ../net/ipv4/tcp_input.c: In function ‘tcp_rcvbuf_grow’: ../net/ipv4/tcp_input.c:898:34: warning: variable ‘oldval’ set but not used [-Wunused-but-set-variable] 898 | u32 rcvwin, rcvbuf, cap, oldval; | ^~~~~~ Documentation/.renames.txt: warning: ignored by one of the .gitignore files