Messages in this thread | | | From | Paul Moore <> | Subject | Re: [PATCH 2/2] Fixed Trivial Warnings in file: Deleted Spaces prior to tabs, and added lines. modified: kernel/auditfilter.c | Date | Wed, 14 Oct 2015 17:54:08 -0400 |
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On Saturday, October 10, 2015 08:57:55 PM Scott Matheina wrote: > Signed-off-by: Scott Matheina <scott@matheina.com> > --- > kernel/auditfilter.c | 17 ++++++++++------- > 1 file changed, 10 insertions(+), 7 deletions(-)
Sorry for the delay in reviewing this, comments inline ...
> diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c > index 7714d93..774f9ad 100644 > --- a/kernel/auditfilter.c > +++ b/kernel/auditfilter.c > @@ -39,13 +39,13 @@ > * Locking model: > * > * audit_filter_mutex: > - * Synchronizes writes and blocking reads of audit's filterlist > - * data. Rcu is used to traverse the filterlist and access > - * contents of structs audit_entry, audit_watch and opaque > - * LSM rules during filtering. If modified, these structures > - * must be copied and replace their counterparts in the filterlist. > - * An audit_parent struct is not accessed during filtering, so may > - * be written directly provided audit_filter_mutex is held. > + * Synchronizes writes and blocking reads of audit's filterlist > + * data. Rcu is used to traverse the filterlist and access > + * contents of structs audit_entry, audit_watch and opaque > + * LSM rules during filtering. If modified, these structures > + * must be copied and replace their counterparts in the filterlist. > + * An audit_parent struct is not accessed during filtering, so may > + * be written directly provided audit_filter_mutex is held. > */
Okay, that's fine.
> /* Audit filter lists, defined in <linux/audit.h> */ > @@ -109,6 +109,7 @@ void audit_free_rule_rcu(struct rcu_head *head) > { > struct audit_entry *e = container_of(head, struct audit_entry, rcu); > audit_free_rule(e); > + > }
Why?
> /* Initialize an audit filterlist entry. */ > @@ -176,9 +177,11 @@ static __u32 *classes[AUDIT_SYSCALL_CLASSES]; > int __init audit_register_class(int class, unsigned *list) > { > __u32 *p = kcalloc(AUDIT_BITMASK_SIZE, sizeof(__u32), GFP_KERNEL); > + > if (!p) > return -ENOMEM;
Okay.
> while (*list != ~0U) { > + > unsigned n = *list++; > if (n >= AUDIT_BITMASK_SIZE * 32 - AUDIT_SYSCALL_CLASSES) { > kfree(p);
Why?
-- paul moore www.paul-moore.com
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