Generic HDLC sparse annotations
Sparse annotations, including two minor bugfixes. Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Jeff Garzik <jeff@garzik.org>hifive-unleashed-5.1
Krzysztof Halasa
Jeff Garzik
parent
27345bb684
commit
abf17ffda7
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@ -37,16 +37,16 @@
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struct hdlc_header {
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u8 address;
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u8 control;
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u16 protocol;
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__be16 protocol;
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}__attribute__ ((packed));
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struct cisco_packet {
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u32 type; /* code */
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u32 par1;
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u32 par2;
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u16 rel; /* reliability */
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u32 time;
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__be32 type; /* code */
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__be32 par1;
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__be32 par2;
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__be16 rel; /* reliability */
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__be32 time;
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}__attribute__ ((packed));
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#define CISCO_PACKET_LEN 18
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#define CISCO_BIG_PACKET_LEN 20
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@ -97,7 +97,7 @@ static int cisco_hard_header(struct sk_buff *skb, struct net_device *dev,
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static void cisco_keepalive_send(struct net_device *dev, u32 type,
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u32 par1, u32 par2)
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__be32 par1, __be32 par2)
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{
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struct sk_buff *skb;
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struct cisco_packet *data;
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@ -115,9 +115,9 @@ static void cisco_keepalive_send(struct net_device *dev, u32 type,
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data = (struct cisco_packet*)(skb->data + 4);
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data->type = htonl(type);
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data->par1 = htonl(par1);
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data->par2 = htonl(par2);
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data->rel = 0xFFFF;
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data->par1 = par1;
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data->par2 = par2;
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data->rel = __constant_htons(0xFFFF);
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/* we will need do_div here if 1000 % HZ != 0 */
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data->time = htonl((jiffies - INITIAL_JIFFIES) * (1000 / HZ));
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@ -193,7 +193,7 @@ static int cisco_rx(struct sk_buff *skb)
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case CISCO_ADDR_REQ: /* Stolen from syncppp.c :-) */
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in_dev = dev->ip_ptr;
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addr = 0;
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mask = ~0; /* is the mask correct? */
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mask = __constant_htonl(~0); /* is the mask correct? */
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if (in_dev != NULL) {
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struct in_ifaddr **ifap = &in_dev->ifa_list;
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@ -245,7 +245,7 @@ static int cisco_rx(struct sk_buff *skb)
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} /* switch(protocol) */
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printk(KERN_INFO "%s: Unsupported protocol %x\n", dev->name,
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data->protocol);
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ntohs(data->protocol));
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dev_kfree_skb_any(skb);
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return NET_RX_DROP;
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@ -270,8 +270,9 @@ static void cisco_timer(unsigned long arg)
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netif_dormant_on(dev);
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}
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cisco_keepalive_send(dev, CISCO_KEEPALIVE_REQ, ++state(hdlc)->txseq,
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state(hdlc)->rxseq);
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cisco_keepalive_send(dev, CISCO_KEEPALIVE_REQ,
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htonl(++state(hdlc)->txseq),
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htonl(state(hdlc)->rxseq));
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state(hdlc)->request_sent = 1;
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state(hdlc)->timer.expires = jiffies +
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state(hdlc)->settings.interval * HZ;
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@ -288,31 +288,31 @@ static int fr_hard_header(struct sk_buff **skb_p, u16 dlci)
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struct sk_buff *skb = *skb_p;
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switch (skb->protocol) {
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case __constant_ntohs(NLPID_CCITT_ANSI_LMI):
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case __constant_htons(NLPID_CCITT_ANSI_LMI):
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head_len = 4;
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skb_push(skb, head_len);
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skb->data[3] = NLPID_CCITT_ANSI_LMI;
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break;
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case __constant_ntohs(NLPID_CISCO_LMI):
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case __constant_htons(NLPID_CISCO_LMI):
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head_len = 4;
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skb_push(skb, head_len);
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skb->data[3] = NLPID_CISCO_LMI;
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break;
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case __constant_ntohs(ETH_P_IP):
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case __constant_htons(ETH_P_IP):
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head_len = 4;
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skb_push(skb, head_len);
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skb->data[3] = NLPID_IP;
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break;
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case __constant_ntohs(ETH_P_IPV6):
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case __constant_htons(ETH_P_IPV6):
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head_len = 4;
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skb_push(skb, head_len);
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skb->data[3] = NLPID_IPV6;
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break;
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case __constant_ntohs(ETH_P_802_3):
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case __constant_htons(ETH_P_802_3):
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head_len = 10;
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if (skb_headroom(skb) < head_len) {
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struct sk_buff *skb2 = skb_realloc_headroom(skb,
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@ -340,7 +340,7 @@ static int fr_hard_header(struct sk_buff **skb_p, u16 dlci)
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skb->data[5] = FR_PAD;
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skb->data[6] = FR_PAD;
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skb->data[7] = FR_PAD;
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*(u16*)(skb->data + 8) = skb->protocol;
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*(__be16*)(skb->data + 8) = skb->protocol;
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}
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dlci_to_q922(skb->data, dlci);
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@ -974,8 +974,8 @@ static int fr_rx(struct sk_buff *skb)
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} else if (skb->len > 10 && data[3] == FR_PAD &&
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data[4] == NLPID_SNAP && data[5] == FR_PAD) {
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u16 oui = ntohs(*(u16*)(data + 6));
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u16 pid = ntohs(*(u16*)(data + 8));
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u16 oui = ntohs(*(__be16*)(data + 6));
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u16 pid = ntohs(*(__be16*)(data + 8));
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skb_pull(skb, 10);
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switch ((((u32)oui) << 16) | pid) {
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@ -1127,7 +1127,7 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type)
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memcpy(dev->dev_addr, "\x00\x01", 2);
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get_random_bytes(dev->dev_addr + 2, ETH_ALEN - 2);
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} else {
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*(u16*)dev->dev_addr = htons(dlci);
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*(__be16*)dev->dev_addr = htons(dlci);
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dlci_to_q922(dev->broadcast, dlci);
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}
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dev->hard_start_xmit = pvc_xmit;
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@ -43,8 +43,7 @@ struct hdlc_proto {
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void (*stop)(struct net_device *dev); /* if open & !DCD */
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void (*detach)(struct net_device *dev);
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int (*ioctl)(struct net_device *dev, struct ifreq *ifr);
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unsigned short (*type_trans)(struct sk_buff *skb,
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struct net_device *dev);
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__be16 (*type_trans)(struct sk_buff *skb, struct net_device *dev);
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struct module *module;
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struct hdlc_proto *next; /* next protocol in the list */
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};
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