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电梯直达

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发表于 2013-04-26 15:39 |只看该作者 |倒序浏览

请教各位大牛：我写的拥塞控制算法小模块出现下面警告：
static struct tcp_congestion_ops tcp_fast __read_mostly = {
      .init                = fast_tcp_init,
      .ssthresh       = tcp_fast_ssthresh,
      .cong_avoid       = tcp_fast_avoid,//276
      .min_cwnd       = tcp_fast_min_cwnd,
      .name             = "fasttcp",
};

/home/fast/fast.c: 在文件层：
/home/fast/fast.c:276: 警告：从不兼容的指针类型初始化

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T-Bagwell

腰缠万贯

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2楼 [报告]

发表于 2013-04-26 15:48 |只看该作者

接口的类型，和cong_void的类型不一样是么？

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SCDXMOE

家境小康

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3楼 [报告]

发表于 2013-04-26 16:15 |只看该作者

回复 2# T-Bagwell

感谢您的回复：这是怎么回事啊？？？
   我写的函数：
                  static void tcp_fast_avoid(struct sock *sk, u32 ack, u32 in_flight)

内核的接口：
struct tcp_congestion_ops {
struct list_head list;
unsigned long flags;
/* initialize private data (optional) */
void (*init)(struct sock *sk);
/* cleanup private data  (optional) */
void (*release)(struct sock *sk);
/* return slow start threshold (required) */
u32 (*ssthresh)(struct sock *sk);
/* lower bound for congestion window (optional) */
u32 (*min_cwnd)(const struct sock *sk);
/* do new cwnd calculation (required) */
void (*cong_avoid)(struct sock *sk, u32 ack, u32 in_flight);
/* call before changing ca_state (optional) */
void (*set_state)(struct sock *sk, u8 new_state);
/* call when cwnd event occurs (optional) */
void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev);
/* new value of cwnd after loss (optional) */
u32  (*undo_cwnd)(struct sock *sk);
/* hook for packet ack accounting (optional) */
void (*pkts_acked)(struct sock *sk, u32 num_acked, s32 rtt_us);
/* get info for inet_diag (optional) */
void (*get_info)(struct sock *sk, u32 ext, struct sk_buff *skb);
char name[TCP_CA_NAME_MAX];
struct module  *owner;
};