ebpf: migrate bpf_prog's flags to bitfield

As we need to add further flags to the bpf_prog structure, lets migrate
both bools to a bitfield representation. The size of the base structure
(excluding insns) remains unchanged at 40 bytes.

Add also tags for the kmemchecker, so that it doesn't throw false
positives. Even in case gcc would generate suboptimal code, it's not
being accessed in performance critical paths.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 35bac8e8b071..2190ab14b763 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -553,10 +553,10 @@ static int bpf_prog_load(union bpf_attr *attr)
                 goto free_prog;
 
         prog->orig_prog = NULL;
-        prog->jited = false;
+        prog->jited = 0;
 
         atomic_set(&prog->aux->refcnt, 1);
-        prog->gpl_compatible = is_gpl;
+        prog->gpl_compatible = is_gpl ? 1 : 0;
 
         /* find program type: socket_filter vs tracing_filter */
         err = find_prog_type(type, prog);