diff options
Diffstat (limited to 'drivers/staging/usbip/usbip_common.c')
-rw-r--r-- | drivers/staging/usbip/usbip_common.c | 61 |
1 files changed, 17 insertions, 44 deletions
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c index 3b7a847..d93e7f1 100644 --- a/drivers/staging/usbip/usbip_common.c +++ b/drivers/staging/usbip/usbip_common.c @@ -334,9 +334,8 @@ void usbip_dump_header(struct usbip_header *pdu) } EXPORT_SYMBOL_GPL(usbip_dump_header); -/* Send/receive messages over TCP/IP. I refer drivers/block/nbd.c */ -int usbip_xmit(int send, struct socket *sock, char *buf, int size, - int msg_flags) +/* Receive data over TCP/IP. */ +int usbip_recv(struct socket *sock, void *buf, int size) { int result; struct msghdr msg; @@ -355,19 +354,6 @@ int usbip_xmit(int send, struct socket *sock, char *buf, int size, return -EINVAL; } - if (usbip_dbg_flag_xmit) { - if (send) { - if (!in_interrupt()) - pr_debug("%-10s:", current->comm); - else - pr_debug("interrupt :"); - - pr_debug("sending... , sock %p, buf %p, size %d, " - "msg_flags %d\n", sock, buf, size, msg_flags); - usbip_dump_buffer(buf, size); - } - } - do { sock->sk->sk_allocation = GFP_NOIO; iov.iov_base = buf; @@ -377,42 +363,30 @@ int usbip_xmit(int send, struct socket *sock, char *buf, int size, msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_namelen = 0; - msg.msg_flags = msg_flags | MSG_NOSIGNAL; - - if (send) - result = kernel_sendmsg(sock, &msg, &iov, 1, size); - else - result = kernel_recvmsg(sock, &msg, &iov, 1, size, - MSG_WAITALL); + msg.msg_flags = MSG_NOSIGNAL; + result = kernel_recvmsg(sock, &msg, &iov, 1, size, MSG_WAITALL); if (result <= 0) { - pr_debug("%s sock %p buf %p size %u ret %d total %d\n", - send ? "send" : "receive", sock, buf, size, - result, total); + pr_debug("receive sock %p buf %p size %u ret %d total %d\n", + sock, buf, size, result, total); goto err; } size -= result; buf += result; total += result; - } while (size > 0); if (usbip_dbg_flag_xmit) { - if (!send) { - if (!in_interrupt()) - pr_debug("%-10s:", current->comm); - else - pr_debug("interrupt :"); - - pr_debug("receiving....\n"); - usbip_dump_buffer(bp, osize); - pr_debug("received, osize %d ret %d size %d total %d\n", - osize, result, size, total); - } + if (!in_interrupt()) + pr_debug("%-10s:", current->comm); + else + pr_debug("interrupt :"); - if (send) - pr_debug("send, total %d\n", total); + pr_debug("receiving....\n"); + usbip_dump_buffer(bp, osize); + pr_debug("received, osize %d ret %d size %d total %d\n", + osize, result, size, total); } return total; @@ -420,7 +394,7 @@ int usbip_xmit(int send, struct socket *sock, char *buf, int size, err: return result; } -EXPORT_SYMBOL_GPL(usbip_xmit); +EXPORT_SYMBOL_GPL(usbip_recv); struct socket *sockfd_to_socket(unsigned int sockfd) { @@ -712,7 +686,7 @@ int usbip_recv_iso(struct usbip_device *ud, struct urb *urb) if (!buff) return -ENOMEM; - ret = usbip_xmit(0, ud->tcp_socket, buff, size, 0); + ret = usbip_recv(ud->tcp_socket, buff, size); if (ret != size) { dev_err(&urb->dev->dev, "recv iso_frame_descriptor, %d\n", ret); @@ -823,8 +797,7 @@ int usbip_recv_xbuff(struct usbip_device *ud, struct urb *urb) if (!(size > 0)) return 0; - ret = usbip_xmit(0, ud->tcp_socket, (char *)urb->transfer_buffer, - size, 0); + ret = usbip_recv(ud->tcp_socket, urb->transfer_buffer, size); if (ret != size) { dev_err(&urb->dev->dev, "recv xbuf, %d\n", ret); if (ud->side == USBIP_STUB) { |