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Subject[mISDN PATCH v2 18/19] Use kernel_{send,recv}msg instead of open coding
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From: Arnaldo Carvalho de Melo <acme@redhat.com>

Reducing the number of direct users of sock_{recv,send}msg.
Modified version to match the latest context.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
---
drivers/isdn/mISDN/l1oip.h | 2 +-
drivers/isdn/mISDN/l1oip_core.c | 24 +++++++-----------------
2 files changed, 8 insertions(+), 18 deletions(-)
diff --git a/drivers/isdn/mISDN/l1oip.h b/drivers/isdn/mISDN/l1oip.h
index a23d575..bc26c89 100644
--- a/drivers/isdn/mISDN/l1oip.h
+++ b/drivers/isdn/mISDN/l1oip.h
@@ -76,7 +76,7 @@ struct l1oip {
struct sockaddr_in sin_local; /* local socket name */
struct sockaddr_in sin_remote; /* remote socket name */
struct msghdr sendmsg; /* ip message to send */
- struct iovec sendiov; /* iov for message */
+ struct kvec sendiov; /* iov for message */

/* frame */
struct l1oip_chan chan[128]; /* channel instances */
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index d9cf83b..990e6a7 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -279,7 +279,6 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
int multi = 0;
u8 frame[len+32];
struct socket *socket = NULL;
- mm_segment_t oldfs;

if (debug & DEBUG_L1OIP_MSG)
printk(KERN_DEBUG "%s: sending data to socket (len = %d)\n",
@@ -352,10 +351,7 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
"= %d)\n", __func__, len);
hc->sendiov.iov_base = frame;
hc->sendiov.iov_len = len;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- len = sock_sendmsg(socket, &hc->sendmsg, len);
- set_fs(oldfs);
+ len = kernel_sendmsg(socket, &hc->sendmsg, &hc->sendiov, 1, len);
/* give socket back */
hc->socket = socket; /* no locking required */

@@ -660,8 +656,6 @@ l1oip_socket_thread(void *data)
struct l1oip *hc = (struct l1oip *)data;
int ret = 0;
struct msghdr msg;
- struct iovec iov;
- mm_segment_t oldfs;
struct sockaddr_in sin_rx;
unsigned char *recvbuf;
size_t recvbuf_size = 1500;
@@ -718,16 +712,12 @@ l1oip_socket_thread(void *data)
msg.msg_namelen = sizeof(sin_rx);
msg.msg_control = NULL;
msg.msg_controllen = 0;
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;

/* build send message */
hc->sendmsg.msg_name = &hc->sin_remote;
hc->sendmsg.msg_namelen = sizeof(hc->sin_remote);
hc->sendmsg.msg_control = NULL;
hc->sendmsg.msg_controllen = 0;
- hc->sendmsg.msg_iov = &hc->sendiov;
- hc->sendmsg.msg_iovlen = 1;

/* give away socket */
spin_lock(&hc->socket_lock);
@@ -739,12 +729,12 @@ l1oip_socket_thread(void *data)
printk(KERN_DEBUG "%s: socket created and open\n",
__func__);
while (!signal_pending(current)) {
- iov.iov_base = recvbuf;
- iov.iov_len = recvbuf_size;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- recvlen = sock_recvmsg(socket, &msg, recvbuf_size, 0);
- set_fs(oldfs);
+ struct kvec iov = {
+ .iov_base = recvbuf,
+ .iov_len = sizeof(recvbuf),
+ };
+ recvlen = kernel_recvmsg(socket, &msg, &iov, 1,
+ sizeof(recvbuf), 0);
if (recvlen > 0) {
l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen);
} else {
--
1.6.0.2


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