diff options
| author | Eric Dumazet <edumazet@google.com> | 2017-08-31 04:53:42 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-31 11:57:37 -0700 |
| commit | 84ccac6e7854ebbfb56d2fc6d5bef9be49bb304c (patch) | |
| tree | 86577241d7a33a02dc714cbfd0c32fa7c19ebd8d /net/core | |
| parent | 3edcf18ec2a8665fec060a05535fca6be16a61de (diff) | |
x86: bpf_jit: small optimization in emit_bpf_tail_call()
Saves 4 bytes replacing following instructions :
lea rax, [rsi + rdx * 8 + offsetof(...)]
mov rax, qword ptr [rax]
cmp rax, 0
by :
mov rax, [rsi + rdx * 8 + offsetof(...)]
test rax, rax
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions