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tcp_splice: Remove unnecessary forward declaration

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In tcp_splice.c we forward declare tcp_splice_epoll_ctl() then define it
later on.  However, there are no circular dependencies which prevent us
from simply having the full definition in place of the forward declaration.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2023-11-07 13:42:43 +11:00 committed by Stefano Brivio
parent 5a79ba6272
commit 409d3ca87f
1 changed files with 34 additions and 37 deletions
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71
tcp_splice.c
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@ -116,8 +116,41 @@ static void tcp_splice_conn_epoll_events(uint16_t events,
*b |= (events & B_OUT_WAIT) ? EPOLLOUT : 0;
}
/**
* tcp_splice_epoll_ctl() - Add/modify/delete epoll state from connection events
* @c: Execution context
* @conn: Connection pointer
*
* Return: 0 on success, negative error code on failure (not on deletion)
*/
static int tcp_splice_epoll_ctl(const struct ctx *c,
struct tcp_splice_conn *conn);
struct tcp_splice_conn *conn)
{
int m = conn->in_epoll ? EPOLL_CTL_MOD : EPOLL_CTL_ADD;
union epoll_ref ref_a = { .type = EPOLL_TYPE_TCP, .fd = conn->a,
.tcp.index = CONN_IDX(conn) };
union epoll_ref ref_b = { .type = EPOLL_TYPE_TCP, .fd = conn->b,
.tcp.index = CONN_IDX(conn) };
struct epoll_event ev_a = { .data.u64 = ref_a.u64 };
struct epoll_event ev_b = { .data.u64 = ref_b.u64 };
uint32_t events_a, events_b;
tcp_splice_conn_epoll_events(conn->events, &events_a, &events_b);
ev_a.events = events_a;
ev_b.events = events_b;
if (epoll_ctl(c->epollfd, m, conn->a, &ev_a) ||
epoll_ctl(c->epollfd, m, conn->b, &ev_b)) {
int ret = -errno;
err("TCP (spliced): index %li, ERROR on epoll_ctl(): %s",
CONN_IDX(conn), strerror(errno));
return ret;
}
conn->in_epoll = true;
return 0;
}
/**
* conn_flag_do() - Set/unset given flag, log, update epoll on CLOSING flag
@ -165,42 +198,6 @@ static void conn_flag_do(const struct ctx *c, struct tcp_splice_conn *conn,
conn_flag_do(c, conn, flag); \
} while (0)
/**
* tcp_splice_epoll_ctl() - Add/modify/delete epoll state from connection events
* @c: Execution context
* @conn: Connection pointer
*
* Return: 0 on success, negative error code on failure (not on deletion)
*/
static int tcp_splice_epoll_ctl(const struct ctx *c,
struct tcp_splice_conn *conn)
{
int m = conn->in_epoll ? EPOLL_CTL_MOD : EPOLL_CTL_ADD;
union epoll_ref ref_a = { .type = EPOLL_TYPE_TCP, .fd = conn->a,
.tcp.index = CONN_IDX(conn) };
union epoll_ref ref_b = { .type = EPOLL_TYPE_TCP, .fd = conn->b,
.tcp.index = CONN_IDX(conn) };
struct epoll_event ev_a = { .data.u64 = ref_a.u64 };
struct epoll_event ev_b = { .data.u64 = ref_b.u64 };
uint32_t events_a, events_b;
tcp_splice_conn_epoll_events(conn->events, &events_a, &events_b);
ev_a.events = events_a;
ev_b.events = events_b;
if (epoll_ctl(c->epollfd, m, conn->a, &ev_a) ||
epoll_ctl(c->epollfd, m, conn->b, &ev_b)) {
int ret = -errno;
err("TCP (spliced): index %li, ERROR on epoll_ctl(): %s",
CONN_IDX(conn), strerror(errno));
return ret;
}
conn->in_epoll = true;
return 0;
}
/**
* conn_event_do() - Set and log connection events, update epoll state
* @c: Execution context