[PATCH][bpf-next] bpf: remove redundant variable old_flags

[Colin King]

From: Colin Ian King <colin.k...@canonical.com>

Variable old_flags is being assigned but is never read; it is redundant
and can be removed.

Cleans up clang warning: Value stored to 'old_flags' is never read

Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 kernel/bpf/cgroup.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index e88abc0865d5..3db5a17fcfe8 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -192,7 +192,6 @@ int __cgroup_bpf_attach(struct cgroup *cgrp, struct 
bpf_prog *prog,
        struct cgroup_subsys_state *css;
        struct bpf_prog_list *pl;
        bool pl_was_allocated;
-       u32 old_flags;
        int err;
 
        if ((flags & BPF_F_ALLOW_OVERRIDE) && (flags & BPF_F_ALLOW_MULTI))
@@ -239,7 +238,6 @@ int __cgroup_bpf_attach(struct cgroup *cgrp, struct 
bpf_prog *prog,
                pl->prog = prog;
        }
 
-       old_flags = cgrp->bpf.flags[type];
        cgrp->bpf.flags[type] = flags;
 
        /* allocate and recompute effective prog arrays */
-- 
2.14.1