From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 7 May 2013 21:02:00 +0000 (-0700)
Subject: Merge tag 'rpmsg-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg
X-Git-Tag: upstream/snapshot3+hdmi~5156
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3e11a00d8561622a2598254853e2e8cc3e51e544;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

Merge tag 'rpmsg-3.10' of git://git./linux/kernel/git/ohad/rpmsg

Pull rpmsg changes from Ohad Ben-Cohen:
 "A small pull request consisting of:

   - Make rpmsg process all pending messages instead of just one, from
     Robert Tivy

   - Fix Kconfig dependency on VIRTUALIZATION, from Suman.

     Note: this was submitted late during the 3.9 rc cycle and it seemed
     appropriate to wait with it for the merge window.

   - Belated addition of an rpmsg entry to the MAINTAINERS file.  People
     seem to look for this"

* tag 'rpmsg-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg:
  rpmsg: fix kconfig dependencies for VIRTIO
  MAINTAINERS: add rpmsg entry
  rpmsg: process _all_ pending messages in rpmsg_recv_done
---

3e11a00d8561622a2598254853e2e8cc3e51e544
diff --cc drivers/rpmsg/virtio_rpmsg_bus.c
index 56fceaf,07d5ea2..b6135d4
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@@ -839,9 -829,27 +829,27 @@@ static int rpmsg_recv_single(struct vir
  	sg_init_one(&sg, msg, RPMSG_BUF_SIZE);
  
  	/* add the buffer back to the remote processor's virtqueue */
 -	err = virtqueue_add_buf(vrp->rvq, &sg, 0, 1, msg, GFP_KERNEL);
 +	err = virtqueue_add_inbuf(vrp->rvq, &sg, 1, msg, GFP_KERNEL);
  	if (err < 0) {
  		dev_err(dev, "failed to add a virtqueue buffer: %d\n", err);
+ 		return err;
+ 	}
+ 
+ 	return 0;
+ }
+ 
+ /* called when an rx buffer is used, and it's time to digest a message */
+ static void rpmsg_recv_done(struct virtqueue *rvq)
+ {
+ 	struct virtproc_info *vrp = rvq->vdev->priv;
+ 	struct device *dev = &rvq->vdev->dev;
+ 	struct rpmsg_hdr *msg;
+ 	unsigned int len, msgs_received = 0;
+ 	int err;
+ 
+ 	msg = virtqueue_get_buf(rvq, &len);
+ 	if (!msg) {
+ 		dev_err(dev, "uhm, incoming signal, but no used buffer ?\n");
  		return;
  	}