From 70f23020e6d89155504b5b39f22505f4aec6fa6f Mon Sep 17 00:00:00 2001 From: Andrei Emeltchenko Date: Wed, 1 Dec 2010 16:58:25 +0200 Subject: [PATCH] Bluetooth: clean up hci code Do not use assignment in IF condition, remove extra spaces, fixing typos, simplify code. Signed-off-by: Andrei Emeltchenko Signed-off-by: Gustavo F. Padovan --- include/net/bluetooth/hci.h | 4 +- include/net/bluetooth/hci_core.h | 14 +++---- net/bluetooth/hci_conn.c | 23 +++++++---- net/bluetooth/hci_core.c | 66 ++++++++++++++++++++------------ net/bluetooth/hci_event.c | 8 ++-- net/bluetooth/hci_sock.c | 17 +++++--- 6 files changed, 82 insertions(+), 50 deletions(-) diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index e30e0083434..e9527c51234 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -489,7 +489,7 @@ struct hci_rp_read_local_name { #define HCI_OP_WRITE_PG_TIMEOUT 0x0c18 -#define HCI_OP_WRITE_SCAN_ENABLE 0x0c1a +#define HCI_OP_WRITE_SCAN_ENABLE 0x0c1a #define SCAN_DISABLED 0x00 #define SCAN_INQUIRY 0x01 #define SCAN_PAGE 0x02 @@ -874,7 +874,7 @@ struct hci_ev_si_security { struct hci_command_hdr { __le16 opcode; /* OCF & OGF */ - __u8 plen; + __u8 plen; } __packed; struct hci_event_hdr { diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index ebec8c9a929..9c08625617a 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -44,15 +44,15 @@ struct inquiry_data { }; struct inquiry_entry { - struct inquiry_entry *next; + struct inquiry_entry *next; __u32 timestamp; struct inquiry_data data; }; struct inquiry_cache { - spinlock_t lock; + spinlock_t lock; __u32 timestamp; - struct inquiry_entry *list; + struct inquiry_entry *list; }; struct hci_conn_hash { @@ -141,7 +141,7 @@ struct hci_dev { void *driver_data; void *core_data; - atomic_t promisc; + atomic_t promisc; struct dentry *debugfs; @@ -150,7 +150,7 @@ struct hci_dev { struct rfkill *rfkill; - struct module *owner; + struct module *owner; int (*open)(struct hci_dev *hdev); int (*close)(struct hci_dev *hdev); @@ -215,8 +215,8 @@ extern rwlock_t hci_dev_list_lock; extern rwlock_t hci_cb_list_lock; /* ----- Inquiry cache ----- */ -#define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds -#define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds +#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ +#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ #define inquiry_cache_lock(c) spin_lock(&c->lock) #define inquiry_cache_unlock(c) spin_unlock(&c->lock) diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 0b1e460fe44..6b90a419173 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -39,7 +39,7 @@ #include #include -#include +#include #include #include @@ -66,7 +66,8 @@ void hci_acl_connect(struct hci_conn *conn) bacpy(&cp.bdaddr, &conn->dst); cp.pscan_rep_mode = 0x02; - if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) { + ie = hci_inquiry_cache_lookup(hdev, &conn->dst); + if (ie) { if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) { cp.pscan_rep_mode = ie->data.pscan_rep_mode; cp.pscan_mode = ie->data.pscan_mode; @@ -368,8 +369,10 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 BT_DBG("%s dst %s", hdev->name, batostr(dst)); - if (!(acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst))) { - if (!(acl = hci_conn_add(hdev, ACL_LINK, dst))) + acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst); + if (!acl) { + acl = hci_conn_add(hdev, ACL_LINK, dst); + if (!acl) return NULL; } @@ -389,8 +392,10 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 if (type == ACL_LINK) return acl; - if (!(sco = hci_conn_hash_lookup_ba(hdev, type, dst))) { - if (!(sco = hci_conn_add(hdev, type, dst))) { + sco = hci_conn_hash_lookup_ba(hdev, type, dst); + if (!sco) { + sco = hci_conn_add(hdev, type, dst); + if (!sco) { hci_conn_put(acl); return NULL; } @@ -647,10 +652,12 @@ int hci_get_conn_list(void __user *arg) size = sizeof(req) + req.conn_num * sizeof(*ci); - if (!(cl = kmalloc(size, GFP_KERNEL))) + cl = kmalloc(size, GFP_KERNEL); + if (!cl) return -ENOMEM; - if (!(hdev = hci_dev_get(req.dev_id))) { + hdev = hci_dev_get(req.dev_id); + if (!hdev) { kfree(cl); return -ENODEV; } diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index bc2a052e518..51c61f75a79 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -44,7 +44,7 @@ #include #include -#include +#include #include #include @@ -349,20 +349,23 @@ struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *b void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data) { struct inquiry_cache *cache = &hdev->inq_cache; - struct inquiry_entry *e; + struct inquiry_entry *ie; BT_DBG("cache %p, %s", cache, batostr(&data->bdaddr)); - if (!(e = hci_inquiry_cache_lookup(hdev, &data->bdaddr))) { + ie = hci_inquiry_cache_lookup(hdev, &data->bdaddr); + if (!ie) { /* Entry not in the cache. Add new one. */ - if (!(e = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC))) + ie = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC); + if (!ie) return; - e->next = cache->list; - cache->list = e; + + ie->next = cache->list; + cache->list = ie; } - memcpy(&e->data, data, sizeof(*data)); - e->timestamp = jiffies; + memcpy(&ie->data, data, sizeof(*data)); + ie->timestamp = jiffies; cache->timestamp = jiffies; } @@ -422,16 +425,20 @@ int hci_inquiry(void __user *arg) hci_dev_lock_bh(hdev); if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX || - inquiry_cache_empty(hdev) || - ir.flags & IREQ_CACHE_FLUSH) { + inquiry_cache_empty(hdev) || + ir.flags & IREQ_CACHE_FLUSH) { inquiry_cache_flush(hdev); do_inquiry = 1; } hci_dev_unlock_bh(hdev); timeo = ir.length * msecs_to_jiffies(2000); - if (do_inquiry && (err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo)) < 0) - goto done; + + if (do_inquiry) { + err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo); + if (err < 0) + goto done; + } /* for unlimited number of responses we will use buffer with 255 entries */ max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp; @@ -439,7 +446,8 @@ int hci_inquiry(void __user *arg) /* cache_dump can't sleep. Therefore we allocate temp buffer and then * copy it to the user space. */ - if (!(buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL))) { + buf = kmalloc(sizeof(struct inquiry_info) *max_rsp, GFP_KERNEL); + if (!buf) { err = -ENOMEM; goto done; } @@ -611,7 +619,8 @@ int hci_dev_close(__u16 dev) struct hci_dev *hdev; int err; - if (!(hdev = hci_dev_get(dev))) + hdev = hci_dev_get(dev); + if (!hdev) return -ENODEV; err = hci_dev_do_close(hdev); hci_dev_put(hdev); @@ -623,7 +632,8 @@ int hci_dev_reset(__u16 dev) struct hci_dev *hdev; int ret = 0; - if (!(hdev = hci_dev_get(dev))) + hdev = hci_dev_get(dev); + if (!hdev) return -ENODEV; hci_req_lock(hdev); @@ -663,7 +673,8 @@ int hci_dev_reset_stat(__u16 dev) struct hci_dev *hdev; int ret = 0; - if (!(hdev = hci_dev_get(dev))) + hdev = hci_dev_get(dev); + if (!hdev) return -ENODEV; memset(&hdev->stat, 0, sizeof(struct hci_dev_stats)); @@ -682,7 +693,8 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) if (copy_from_user(&dr, arg, sizeof(dr))) return -EFAULT; - if (!(hdev = hci_dev_get(dr.dev_id))) + hdev = hci_dev_get(dr.dev_id); + if (!hdev) return -ENODEV; switch (cmd) { @@ -763,7 +775,8 @@ int hci_get_dev_list(void __user *arg) size = sizeof(*dl) + dev_num * sizeof(*dr); - if (!(dl = kzalloc(size, GFP_KERNEL))) + dl = kzalloc(size, GFP_KERNEL); + if (!dl) return -ENOMEM; dr = dl->dev_req; @@ -797,7 +810,8 @@ int hci_get_dev_info(void __user *arg) if (copy_from_user(&di, arg, sizeof(di))) return -EFAULT; - if (!(hdev = hci_dev_get(di.dev_id))) + hdev = hci_dev_get(di.dev_id); + if (!hdev) return -ENODEV; strcpy(di.name, hdev->name); @@ -905,7 +919,7 @@ int hci_register_dev(struct hci_dev *hdev) hdev->sniff_max_interval = 800; hdev->sniff_min_interval = 80; - tasklet_init(&hdev->cmd_task, hci_cmd_task,(unsigned long) hdev); + tasklet_init(&hdev->cmd_task, hci_cmd_task, (unsigned long) hdev); tasklet_init(&hdev->rx_task, hci_rx_task, (unsigned long) hdev); tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev); @@ -1368,7 +1382,8 @@ void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags) bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; hci_add_acl_hdr(skb, conn->handle, flags | ACL_START); - if (!(list = skb_shinfo(skb)->frag_list)) { + list = skb_shinfo(skb)->frag_list; + if (!list) { /* Non fragmented */ BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len); @@ -1609,7 +1624,8 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb) hci_conn_enter_active_mode(conn); /* Send to upper protocol */ - if ((hp = hci_proto[HCI_PROTO_L2CAP]) && hp->recv_acldata) { + hp = hci_proto[HCI_PROTO_L2CAP]; + if (hp && hp->recv_acldata) { hp->recv_acldata(conn, skb, flags); return; } @@ -1644,7 +1660,8 @@ static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb) register struct hci_proto *hp; /* Send to upper protocol */ - if ((hp = hci_proto[HCI_PROTO_SCO]) && hp->recv_scodata) { + hp = hci_proto[HCI_PROTO_SCO]; + if (hp && hp->recv_scodata) { hp->recv_scodata(conn, skb); return; } @@ -1727,7 +1744,8 @@ static void hci_cmd_task(unsigned long arg) if (atomic_read(&hdev->cmd_cnt) && (skb = skb_dequeue(&hdev->cmd_q))) { kfree_skb(hdev->sent_cmd); - if ((hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC))) { + hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC); + if (hdev->sent_cmd) { atomic_dec(&hdev->cmd_cnt); hci_send_frame(skb); hdev->cmd_last_tx = jiffies; diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 3c1957c82b6..8923b36a67a 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -39,7 +39,7 @@ #include #include -#include +#include #include #include @@ -1512,10 +1512,12 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s conn->sent -= count; if (conn->type == ACL_LINK) { - if ((hdev->acl_cnt += count) > hdev->acl_pkts) + hdev->acl_cnt += count; + if (hdev->acl_cnt > hdev->acl_pkts) hdev->acl_cnt = hdev->acl_pkts; } else { - if ((hdev->sco_cnt += count) > hdev->sco_pkts) + hdev->sco_cnt += count; + if (hdev->sco_cnt > hdev->sco_pkts) hdev->sco_cnt = hdev->sco_pkts; } } diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 83acd164d39..b3753bad2a5 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -43,7 +43,7 @@ #include #include -#include +#include #include #include @@ -125,7 +125,8 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) continue; } - if (!(nskb = skb_clone(skb, GFP_ATOMIC))) + nskb = skb_clone(skb, GFP_ATOMIC); + if (!nskb) continue; /* Put type byte before the data */ @@ -370,7 +371,8 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le } if (haddr->hci_dev != HCI_DEV_NONE) { - if (!(hdev = hci_dev_get(haddr->hci_dev))) { + hdev = hci_dev_get(haddr->hci_dev); + if (!hdev) { err = -ENODEV; goto done; } @@ -457,7 +459,8 @@ static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock, if (sk->sk_state == BT_CLOSED) return 0; - if (!(skb = skb_recv_datagram(sk, flags, noblock, &err))) + skb = skb_recv_datagram(sk, flags, noblock, &err); + if (!skb) return err; msg->msg_namelen = 0; @@ -499,7 +502,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, lock_sock(sk); - if (!(hdev = hci_pi(sk)->hdev)) { + hdev = hci_pi(sk)->hdev; + if (!hdev) { err = -EBADFD; goto done; } @@ -509,7 +513,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, goto done; } - if (!(skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err))) + skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); + if (!skb) goto done; if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { -- 2.20.1