[RFC v4 12/18] bpf: Cosmetic change for bpf_prog_attach()
From: Mickaël Salaün <mic@digikod.net>
Date: 2016-10-26 07:05:04
Also in:
cgroups, lkml, netdev
Subsystem:
bpf [core], bpf [general] (safe dynamic programs and tools), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
Move code outside a switch/case to ease code factoring (cf. next commit). This apply on Daniel Mack's "Add eBPF hooks for cgroups" v7: https://lkml.kernel.org/r/1477390454-12553-1-git-send-email-daniel@zonque.org Signed-off-by: Mickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Daniel Mack <daniel@zonque.org> --- kernel/bpf/syscall.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 0f7faa9d2262..ac4cbb98596d 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c@@ -843,23 +843,24 @@ static int bpf_prog_attach(const union bpf_attr *attr) case BPF_CGROUP_INET_EGRESS: prog = bpf_prog_get_type(attr->attach_bpf_fd, BPF_PROG_TYPE_CGROUP_SKB); - if (IS_ERR(prog)) - return PTR_ERR(prog); - - cgrp = cgroup_get_from_fd(attr->target_fd); - if (IS_ERR(cgrp)) { - bpf_prog_put(prog); - return PTR_ERR(cgrp); - } - - cgroup_bpf_update(cgrp, prog, attr->attach_type); - cgroup_put(cgrp); break; default: return -EINVAL; } + if (IS_ERR(prog)) + return PTR_ERR(prog); + + cgrp = cgroup_get_from_fd(attr->target_fd); + if (IS_ERR(cgrp)) { + bpf_prog_put(prog); + return PTR_ERR(cgrp); + } + + cgroup_bpf_update(cgrp, prog, attr->attach_type); + cgroup_put(cgrp); + return 0; }
--
2.9.3