From: Andrii Nakryiko andriin@fb.com
commit 2dedd7d2165565bafa89718eaadfc5d1a7865f66 upstream.
Fix "warning: cast to pointer from integer of different size" when casting u64 addr to void *.
Fixes: a23740ec43ba ("bpf: Track contents of read-only maps as scalars") Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Andrii Nakryiko andriin@fb.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Martin KaFai Lau kafai@fb.com Link: https://lore.kernel.org/bpf/20191011172053.2980619-1-andriin@fb.com Cc: Rafael David Tinoco rafaeldtinoco@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/bpf/verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -2792,7 +2792,7 @@ static int bpf_map_direct_read(struct bp err = map->ops->map_direct_value_addr(map, &addr, off); if (err) return err; - ptr = (void *)addr + off; + ptr = (void *)(long)addr + off;
switch (size) { case sizeof(u8):