[PATCH v3 bpf-next 01/19] bpf: refactor propagate_liveness to eliminate duplicated for loop

[Jiong Wang]

Propagation for register and stack slot are finished in separate for loop,
while they are perfect to be put into a single loop.

This could also let them share some common variables in later patches.

Signed-off-by: Jiong Wang <jiong.w...@netronome.com>
---
 kernel/bpf/verifier.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 15ab6fa..da285df 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -6254,10 +6254,8 @@ static int propagate_liveness(struct bpf_verifier_env 
*env,
                                        return err;
                        }
                }
-       }
 
-       /* ... and stack slots */
-       for (frame = 0; frame <= vstate->curframe; frame++) {
+               /* Propagate stack slots. */
                state = vstate->frame[frame];
                parent = vparent->frame[frame];
                for (i = 0; i < state->allocated_stack / BPF_REG_SIZE &&
-- 
2.7.4