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tipc: clean up warnings detected by sparse 

This patch fixes the following warning from sparse:

net/tipc/monitor.c:263:35: warning: incorrect type in assignment (different base types)
net/tipc/monitor.c:263:35:    expected unsigned int
net/tipc/monitor.c:263:35:    got restricted __be32 [usertype]
[...]
net/tipc/node.c:374:13: warning: context imbalance in 'tipc_node_read_lock' - wrong count at exit
net/tipc/node.c:379:13: warning: context imbalance in 'tipc_node_read_unlock' - unexpected unlock
net/tipc/node.c:384:13: warning: context imbalance in 'tipc_node_write_lock' - wrong count at exit
net/tipc/node.c:389:13: warning: context imbalance in 'tipc_node_write_unlock_fast' - unexpected unlock
net/tipc/node.c:404:17: warning: context imbalance in 'tipc_node_write_unlock' - unexpected unlock
[...]
net/tipc/crypto.c:1201:9: warning: incorrect type in initializer (different address spaces)
net/tipc/crypto.c:1201:9:    expected struct tipc_aead [noderef] __rcu *__tmp
net/tipc/crypto.c:1201:9:    got struct tipc_aead *
[...]

Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Hoang Huu Le <hoang.h.le@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hoang Huu Le 2021-03-11 10:33:23 +07:00 committed by David S. Miller
parent 1980d37565
commit 97bc84bbd4
3 changed files with 58 additions and 22 deletions
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12
net/tipc/crypto.c
View File

@ -317,7 +317,7 @@ static int tipc_aead_key_generate(struct tipc_aead_key *skey);
#define tipc_aead_rcu_replace(rcu_ptr, ptr, lock) \
do { \
typeof(rcu_ptr) __tmp = rcu_dereference_protected((rcu_ptr), \
struct tipc_aead *__tmp = rcu_dereference_protected((rcu_ptr), \
lockdep_is_held(lock)); \
rcu_assign_pointer((rcu_ptr), (ptr)); \
tipc_aead_put(__tmp); \
@ -798,7 +798,7 @@ static int tipc_aead_encrypt(struct tipc_aead *aead, struct sk_buff *skb,
ehdr = (struct tipc_ehdr *)skb->data;
salt = aead->salt;
if (aead->mode == CLUSTER_KEY)
salt ^= ehdr->addr; /* __be32 */
salt ^= __be32_to_cpu(ehdr->addr);
else if (__dnode)
salt ^= tipc_node_get_addr(__dnode);
memcpy(iv, &salt, 4);
@ -929,7 +929,7 @@ static int tipc_aead_decrypt(struct net *net, struct tipc_aead *aead,
ehdr = (struct tipc_ehdr *)skb->data;
salt = aead->salt;
if (aead->mode == CLUSTER_KEY)
salt ^= ehdr->addr; /* __be32 */
salt ^= __be32_to_cpu(ehdr->addr);
else if (ehdr->destined)
salt ^= tipc_own_addr(net);
memcpy(iv, &salt, 4);
@ -1946,16 +1946,16 @@ static void tipc_crypto_rcv_complete(struct net *net, struct tipc_aead *aead,
goto rcv;
}
tipc_aead_put(aead);
aead = tipc_aead_get(tmp);
aead = tipc_aead_get((struct tipc_aead __force __rcu *)tmp);
}
if (unlikely(err)) {
tipc_aead_users_dec(aead, INT_MIN);
tipc_aead_users_dec((struct tipc_aead __force __rcu *)aead, INT_MIN);
goto free_skb;
}
/* Set the RX key's user */
tipc_aead_users_set(aead, 1);
tipc_aead_users_set((struct tipc_aead __force __rcu *)aead, 1);
/* Mark this point, RX works */
rx->timer1 = jiffies;

63
net/tipc/monitor.c
View File

@ -104,6 +104,36 @@ static struct tipc_monitor *tipc_monitor(struct net *net, int bearer_id)
const int tipc_max_domain_size = sizeof(struct tipc_mon_domain);
static inline u16 mon_cpu_to_le16(u16 val)
{
return (__force __u16)htons(val);
}
static inline u32 mon_cpu_to_le32(u32 val)
{
return (__force __u32)htonl(val);
}
static inline u64 mon_cpu_to_le64(u64 val)
{
return (__force __u64)cpu_to_be64(val);
}
static inline u16 mon_le16_to_cpu(u16 val)
{
return ntohs((__force __be16)val);
}
static inline u32 mon_le32_to_cpu(u32 val)
{
return ntohl((__force __be32)val);
}
static inline u64 mon_le64_to_cpu(u64 val)
{
return be64_to_cpu((__force __be64)val);
}
/* dom_rec_len(): actual length of domain record for transport
*/
static int dom_rec_len(struct tipc_mon_domain *dom, u16 mcnt)
@ -260,16 +290,16 @@ static void mon_update_local_domain(struct tipc_monitor *mon)
diff |= dom->members[i] != peer->addr;
dom->members[i] = peer->addr;
map_set(&dom->up_map, i, peer->is_up);
cache->members[i] = htonl(peer->addr);
cache->members[i] = mon_cpu_to_le32(peer->addr);
}
diff |= dom->up_map != prev_up_map;
if (!diff)
return;
dom->gen = ++mon->dom_gen;
cache->len = htons(dom->len);
cache->gen = htons(dom->gen);
cache->member_cnt = htons(member_cnt);
cache->up_map = cpu_to_be64(dom->up_map);
cache->len = mon_cpu_to_le16(dom->len);
cache->gen = mon_cpu_to_le16(dom->gen);
cache->member_cnt = mon_cpu_to_le16(member_cnt);
cache->up_map = mon_cpu_to_le64(dom->up_map);
mon_apply_domain(mon, self);
}
@ -455,10 +485,11 @@ void tipc_mon_rcv(struct net *net, void *data, u16 dlen, u32 addr,
struct tipc_mon_domain dom_bef;
struct tipc_mon_domain *dom;
struct tipc_peer *peer;
u16 new_member_cnt = ntohs(arrv_dom->member_cnt);
u16 new_member_cnt = mon_le16_to_cpu(arrv_dom->member_cnt);
int new_dlen = dom_rec_len(arrv_dom, new_member_cnt);
u16 new_gen = ntohs(arrv_dom->gen);
u16 acked_gen = ntohs(arrv_dom->ack_gen);
u16 new_gen = mon_le16_to_cpu(arrv_dom->gen);
u16 acked_gen = mon_le16_to_cpu(arrv_dom->ack_gen);
u16 arrv_dlen = mon_le16_to_cpu(arrv_dom->len);
bool probing = state->probing;
int i, applied_bef;
@ -469,7 +500,7 @@ void tipc_mon_rcv(struct net *net, void *data, u16 dlen, u32 addr,
return;
if (dlen != dom_rec_len(arrv_dom, new_member_cnt))
return;
if ((dlen < new_dlen) || ntohs(arrv_dom->len) != new_dlen)
if (dlen < new_dlen || arrv_dlen != new_dlen)
return;
/* Synch generation numbers with peer if link just came up */
@ -517,9 +548,9 @@ void tipc_mon_rcv(struct net *net, void *data, u16 dlen, u32 addr,
dom->len = new_dlen;
dom->gen = new_gen;
dom->member_cnt = new_member_cnt;
dom->up_map = be64_to_cpu(arrv_dom->up_map);
dom->up_map = mon_le64_to_cpu(arrv_dom->up_map);
for (i = 0; i < new_member_cnt; i++)
dom->members[i] = ntohl(arrv_dom->members[i]);
dom->members[i] = mon_le32_to_cpu(arrv_dom->members[i]);
/* Update peers affected by this domain record */
applied_bef = peer->applied;
@ -548,19 +579,19 @@ void tipc_mon_prep(struct net *net, void *data, int *dlen,
if (likely(state->acked_gen == gen)) {
len = dom_rec_len(dom, 0);
*dlen = len;
dom->len = htons(len);
dom->gen = htons(gen);
dom->ack_gen = htons(state->peer_gen);
dom->len = mon_cpu_to_le16(len);
dom->gen = mon_cpu_to_le16(gen);
dom->ack_gen = mon_cpu_to_le16(state->peer_gen);
dom->member_cnt = 0;
return;
}
/* Send the full record */
read_lock_bh(&mon->lock);
len = ntohs(mon->cache.len);
len = mon_le16_to_cpu(mon->cache.len);
*dlen = len;
memcpy(data, &mon->cache, len);
read_unlock_bh(&mon->lock);
dom->ack_gen = htons(state->peer_gen);
dom->ack_gen = mon_cpu_to_le16(state->peer_gen);
}
void tipc_mon_get_state(struct net *net, u32 addr,

5
net/tipc/node.c
View File

@ -372,26 +372,31 @@ static struct tipc_node *tipc_node_find_by_id(struct net *net, u8 *id)
}
static void tipc_node_read_lock(struct tipc_node *n)
__acquires(n->lock)
{
read_lock_bh(&n->lock);
}
static void tipc_node_read_unlock(struct tipc_node *n)
__releases(n->lock)
{
read_unlock_bh(&n->lock);
}
static void tipc_node_write_lock(struct tipc_node *n)
__acquires(n->lock)
{
write_lock_bh(&n->lock);
}
static void tipc_node_write_unlock_fast(struct tipc_node *n)
__releases(n->lock)
{
write_unlock_bh(&n->lock);
}
static void tipc_node_write_unlock(struct tipc_node *n)
__releases(n->lock)
{
struct net *net = n->net;
u32 addr = 0;