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Message-Id: <20080115122320.1fadbbe7.dada1@cosmosbay.com>
Date: Tue, 15 Jan 2008 12:23:20 +0100
From: Eric Dumazet <dada1@...mosbay.com>
To: David Miller <davem@...emloft.net>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [ROSE]: Supress sparse warnings
CHECK net/rose/af_rose.c
net/rose/af_rose.c:125:11: warning: expensive signed divide
net/rose/af_rose.c:976:46: warning: expensive signed divide
net/rose/af_rose.c:1379:13: warning: context imbalance in 'rose_info_start' - wrong count at exit
net/rose/af_rose.c:1406:13: warning: context imbalance in 'rose_info_stop' - unexpected unlock
CHECK net/rose/rose_in.c
net/rose/rose_in.c:185:25: warning: expensive signed divide
CHECK net/rose/rose_route.c
net/rose/rose_route.c:997:46: warning: expensive signed divide
net/rose/rose_route.c:1070:13: warning: context imbalance in 'rose_node_start' - wrong count at exit
net/rose/rose_route.c:1093:13: warning: context imbalance in 'rose_node_stop' - unexpected unlock
net/rose/rose_route.c:1146:13: warning: context imbalance in 'rose_neigh_start' - wrong count at exit
net/rose/rose_route.c:1169:13: warning: context imbalance in 'rose_neigh_stop' - unexpected unlock
net/rose/rose_route.c:1229:13: warning: context imbalance in 'rose_route_start' - wrong count at exit
net/rose/rose_route.c:1252:13: warning: context imbalance in 'rose_route_stop' - unexpected unlock
Signed-off-by: Eric Dumazet <dada1@...mosbay.com>
net/rose/af_rose.c | 8 +++++---
net/rose/rose_in.c | 2 +-
net/rose/rose_route.c | 10 ++++++++--
3 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 323d42a..4a31a81 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -116,7 +116,7 @@ int rosecmp(rose_address *addr1, rose_address *addr2)
*/
int rosecmpm(rose_address *addr1, rose_address *addr2, unsigned short mask)
{
- int i, j;
+ unsigned int i, j;
if (mask > 10)
return 1;
@@ -973,8 +973,8 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros
*/
memset(&facilities, 0x00, sizeof(struct rose_facilities_struct));
- len = (((skb->data[3] >> 4) & 0x0F) + 1) / 2;
- len += (((skb->data[3] >> 0) & 0x0F) + 1) / 2;
+ len = (((skb->data[3] >> 4) & 0x0F) + 1) >> 1;
+ len += (((skb->data[3] >> 0) & 0x0F) + 1) >> 1;
if (!rose_parse_facilities(skb->data + len + 4, &facilities)) {
rose_transmit_clear_request(neigh, lci, ROSE_INVALID_FACILITY, 76);
return 0;
@@ -1377,6 +1377,7 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
#ifdef CONFIG_PROC_FS
static void *rose_info_start(struct seq_file *seq, loff_t *pos)
+ __acquires(rose_list_lock)
{
int i;
struct sock *s;
@@ -1404,6 +1405,7 @@ static void *rose_info_next(struct seq_file *seq, void *v, loff_t *pos)
}
static void rose_info_stop(struct seq_file *seq, void *v)
+ __releases(rose_list_lock)
{
spin_unlock_bh(&rose_list_lock);
}
diff --git a/net/rose/rose_in.c b/net/rose/rose_in.c
index 4ee0879..7f7fcb4 100644
--- a/net/rose/rose_in.c
+++ b/net/rose/rose_in.c
@@ -182,7 +182,7 @@ static int rose_state3_machine(struct sock *sk, struct sk_buff *skb, int framety
break;
}
if (atomic_read(&sk->sk_rmem_alloc) >
- (sk->sk_rcvbuf / 2))
+ (sk->sk_rcvbuf >> 1))
rose->condition |= ROSE_COND_OWN_RX_BUSY;
}
/*
diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index 540c0f2..fb9359f 100644
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -994,8 +994,8 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
goto out;
}
- len = (((skb->data[3] >> 4) & 0x0F) + 1) / 2;
- len += (((skb->data[3] >> 0) & 0x0F) + 1) / 2;
+ len = (((skb->data[3] >> 4) & 0x0F) + 1) >> 1;
+ len += (((skb->data[3] >> 0) & 0x0F) + 1) >> 1;
memset(&facilities, 0x00, sizeof(struct rose_facilities_struct));
@@ -1068,6 +1068,7 @@ out:
#ifdef CONFIG_PROC_FS
static void *rose_node_start(struct seq_file *seq, loff_t *pos)
+ __acquires(rose_neigh_list_lock)
{
struct rose_node *rose_node;
int i = 1;
@@ -1091,6 +1092,7 @@ static void *rose_node_next(struct seq_file *seq, void *v, loff_t *pos)
}
static void rose_node_stop(struct seq_file *seq, void *v)
+ __releases(rose_neigh_list_lock)
{
spin_unlock_bh(&rose_neigh_list_lock);
}
@@ -1144,6 +1146,7 @@ const struct file_operations rose_nodes_fops = {
};
static void *rose_neigh_start(struct seq_file *seq, loff_t *pos)
+ __acquires(rose_neigh_list_lock)
{
struct rose_neigh *rose_neigh;
int i = 1;
@@ -1167,6 +1170,7 @@ static void *rose_neigh_next(struct seq_file *seq, void *v, loff_t *pos)
}
static void rose_neigh_stop(struct seq_file *seq, void *v)
+ __releases(rose_neigh_list_lock)
{
spin_unlock_bh(&rose_neigh_list_lock);
}
@@ -1227,6 +1231,7 @@ const struct file_operations rose_neigh_fops = {
static void *rose_route_start(struct seq_file *seq, loff_t *pos)
+ __acquires(rose_route_list_lock)
{
struct rose_route *rose_route;
int i = 1;
@@ -1250,6 +1255,7 @@ static void *rose_route_next(struct seq_file *seq, void *v, loff_t *pos)
}
static void rose_route_stop(struct seq_file *seq, void *v)
+ __releases(rose_route_list_lock)
{
spin_unlock_bh(&rose_route_list_lock);
}
--
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