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bpf, cgroups: clean up kerneldoc warnings

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Building with W=1 reveals some bitrot:

  CC      kernel/bpf/cgroup.o
kernel/bpf/cgroup.c:238: warning: Function parameter or member 'flags' not described in '__cgroup_bpf_attach'
kernel/bpf/cgroup.c:367: warning: Function parameter or member 'unused_flags' not described in '__cgroup_bpf_detach'

Add a kerneldoc line for 'flags'.

Fixing the warning for 'unused_flags' is best approached by
removing the unused parameter on the function call.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Valdis Kletnieks 2019-01-29 01:47:06 -05:00 committed by Daniel Borkmann
parent 116bfa96a2
commit 1832f4ef58
3 changed files with 4 additions and 3 deletions
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2
include/linux/bpf-cgroup.h
View File

@ -78,7 +78,7 @@ int cgroup_bpf_inherit(struct cgroup *cgrp);
int __cgroup_bpf_attach(struct cgroup *cgrp, struct bpf_prog *prog,
enum bpf_attach_type type, u32 flags);
int __cgroup_bpf_detach(struct cgroup *cgrp, struct bpf_prog *prog,
enum bpf_attach_type type, u32 flags);
enum bpf_attach_type type);
int __cgroup_bpf_query(struct cgroup *cgrp, const union bpf_attr *attr,
union bpf_attr __user *uattr);

3
kernel/bpf/cgroup.c
View File

@ -230,6 +230,7 @@ cleanup:
* @cgrp: The cgroup which descendants to traverse
* @prog: A program to attach
* @type: Type of attach operation
* @flags: Option flags
*
* Must be called with cgroup_mutex held.
*/
@ -363,7 +364,7 @@ cleanup:
* Must be called with cgroup_mutex held.
*/
int __cgroup_bpf_detach(struct cgroup *cgrp, struct bpf_prog *prog,
enum bpf_attach_type type, u32 unused_flags)
enum bpf_attach_type type)
{
struct list_head *progs = &cgrp->bpf.progs[type];
enum bpf_cgroup_storage_type stype;

2
kernel/cgroup/cgroup.c
View File

@ -5996,7 +5996,7 @@ int cgroup_bpf_detach(struct cgroup *cgrp, struct bpf_prog *prog,
int ret;
mutex_lock(&cgroup_mutex);
ret = __cgroup_bpf_detach(cgrp, prog, type, flags);
ret = __cgroup_bpf_detach(cgrp, prog, type);
mutex_unlock(&cgroup_mutex);
return ret;
}