linux-next: build warning after merge of the bpf tree

Hi all,

After merging the bpf tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:

kernel/bpf/verifier.c: In function 'jit_subprogs':
kernel/bpf/verifier.c:12055:18: warning: unused variable 'map_ptr' [-Wunused-variable]
12055 |  struct bpf_map *map_ptr;
      |                  ^~~~~~~

Introduced by commit

  7e0f5bf7eb62 ("bpf: Track subprog poke correctly, fix use-after-free")

-- 
Cheers,
Stephen Rothwell