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| author | Amol Grover <frextrite@gmail.com> | 2019-12-02 00:03:48 +0530 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2019-12-09 15:19:03 -0500 |
| commit | cb5172d96d16df72db8b55146b0ec00bfd97f079 (patch) | |
| tree | e94fe3b55f90bc95124dd7815955a8a7f0913f13 /kernel/audit.c | |
| parent | e42617b825f8073569da76dc4510bfa019b1c35a (diff) | |
| download | linux-cb5172d96d16df72db8b55146b0ec00bfd97f079.tar.gz linux-cb5172d96d16df72db8b55146b0ec00bfd97f079.tar.bz2 linux-cb5172d96d16df72db8b55146b0ec00bfd97f079.zip | |
audit: Add __rcu annotation to RCU pointer
Add __rcu annotation to RCU-protected global pointer auditd_conn.
auditd_conn is an RCU-protected global pointer,i.e., accessed
via RCU methods rcu_dereference() and rcu_assign_pointer(),
hence it must be annotated with __rcu for sparse to report
warnings/errors correctly.
Fix multiple instances of the sparse error:
error: incompatible types in comparison expression
(different address spaces)
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Amol Grover <frextrite@gmail.com>
[PM: tweak subject line]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'kernel/audit.c')
| -rw-r--r-- | kernel/audit.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/audit.c b/kernel/audit.c index 8e09f0f55b4b..17b0d523afb3 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -102,12 +102,13 @@ struct audit_net { * This struct is RCU protected; you must either hold the RCU lock for reading * or the associated spinlock for writing. */ -static struct auditd_connection { +struct auditd_connection { struct pid *pid; u32 portid; struct net *net; struct rcu_head rcu; -} *auditd_conn = NULL; +}; +static struct auditd_connection __rcu *auditd_conn; static DEFINE_SPINLOCK(auditd_conn_lock); /* If audit_rate_limit is non-zero, limit the rate of sending audit records |