Documentation/.renames.txt: warning: ignored by one of the .gitignore files ../kernel/bpf/arena.c: In function ‘arena_alloc_pages’: ../kernel/bpf/arena.c:571:17: error: implicit declaration of function ‘arena_free_pages’; did you mean ‘dma_free_pages’? [-Wimplicit-function-declaration] 571 | arena_free_pages(arena, uaddr32, mapped); | ^~~~~~~~~~~~~~~~ | dma_free_pages ../kernel/bpf/arena.c: At top level: ../kernel/bpf/arena.c:590:13: warning: conflicting types for ‘arena_free_pages’; have ‘void(struct bpf_arena *, long int, long int)’ 590 | static void arena_free_pages(struct bpf_arena *arena, long uaddr, long page_cnt) | ^~~~~~~~~~~~~~~~ ../kernel/bpf/arena.c:590:13: error: static declaration of ‘arena_free_pages’ follows non-static declaration ../kernel/bpf/arena.c:571:17: note: previous implicit declaration of ‘arena_free_pages’ with type ‘void(struct bpf_arena *, long int, long int)’ 571 | arena_free_pages(arena, uaddr32, mapped); | ^~~~~~~~~~~~~~~~ make[5]: *** [../scripts/Makefile.build:287: kernel/bpf/arena.o] Error 1 make[4]: *** [../scripts/Makefile.build:556: kernel/bpf] Error 2 make[3]: *** [../scripts/Makefile.build:556: kernel] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/srv/nipa-poller/bpf-next/wt-0/Makefile:2061: .] Error 2 make[1]: *** [/srv/nipa-poller/bpf-next/wt-0/Makefile:248: __sub-make] Error 2 make: *** [Makefile:248: __sub-make] Error 2 Documentation/.renames.txt: warning: ignored by one of the .gitignore files ../kernel/bpf/arena.c:689:18: warning: symbol 'bpf_arena_alloc_pages' was not declared. Should it be static? ../kernel/bpf/arena.c:701:18: warning: symbol 'bpf_arena_free_pages' was not declared. Should it be static? ../kernel/bpf/arena.c:711:17: warning: symbol 'bpf_arena_reserve_pages' was not declared. Should it be static? ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?