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authorDavid Howells <dhowells@redhat.com>2018-03-30 21:05:17 +0100
committerDavid Howells <dhowells@redhat.com>2018-03-30 21:05:17 +0100
commit88f2a8257c9aa7df957b1a79a104f348d60d8027 (patch)
treed2caa88668da0142f6f3b8478a0d17620240c765 /net/rxrpc/proc.c
parentedb63e2b271752a9424a3d33cfcd4f434a020f9b (diff)
rxrpc: Fix checker warnings and errors
Fix various issues detected by checker. Errors: (*) rxrpc_discard_prealloc() should be using rcu_assign_pointer to set call->socket. Warnings: (*) rxrpc_service_connection_reaper() should be passing NULL rather than 0 to trace_rxrpc_conn() as the where argument. (*) rxrpc_disconnect_client_call() should get its net pointer via the call->conn rather than call->sock to avoid a warning about accessing an RCU pointer without protection. (*) Proc seq start/stop functions need annotation as they pass locks between the functions. False positives: (*) Checker doesn't correctly handle of seq-retry lock context balance in rxrpc_find_service_conn_rcu(). (*) Checker thinks execution may proceed past the BUG() in rxrpc_publish_service_conn(). (*) Variable length array warnings from SKCIPHER_REQUEST_ON_STACK() in rxkad.c. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/proc.c')
-rw-r--r--net/rxrpc/proc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c
index f79f260c6ddc..7e45db058823 100644
--- a/net/rxrpc/proc.c
+++ b/net/rxrpc/proc.c
@@ -29,6 +29,8 @@ static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = {
* generate a list of extant and dead calls in /proc/net/rxrpc_calls
*/
static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
+ __acquires(rcu)
+ __acquires(rxnet->call_lock)
{
struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
@@ -45,6 +47,8 @@ static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos)
}
static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)
+ __releases(rxnet->call_lock)
+ __releases(rcu)
{
struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
@@ -135,6 +139,7 @@ const struct file_operations rxrpc_call_seq_fops = {
* generate a list of extant virtual connections in /proc/net/rxrpc_conns
*/
static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos)
+ __acquires(rxnet->conn_lock)
{
struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
@@ -151,6 +156,7 @@ static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v,
}
static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v)
+ __releases(rxnet->conn_lock)
{
struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));