Subject: linux-next: build failure after merge of the rpmsg tree

From: Stephen Rothwell <[email-masked]>
Date: Fri, 22 Feb 2019 16:18:17 +1100

Hi Bjorn,

After merging the rpmsg tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

drivers/remoteproc/remoteproc_virtio.c: In function 'rproc_add_virtio_dev':
drivers/remoteproc/remoteproc_virtio.c:374:11: error: 'DMA_MEMORY_EXCLUSIVE' undeclared (first use in this function); did you mean 'WQ_FLAG_EXCLUSIVE'?
           DMA_MEMORY_EXCLUSIVE);
           ^~~~~~~~~~~~~~~~~~~~
           WQ_FLAG_EXCLUSIVE
drivers/remoteproc/remoteproc_virtio.c:374:11: note: each undeclared identifier is reported only once for each function it appears in
drivers/remoteproc/remoteproc_virtio.c:371:10: error: too many arguments to function 'dma_declare_coherent_memory'
    ret = dma_declare_coherent_memory(dev, pa,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/remoteproc/remoteproc_virtio.c:20:
include/linux/dma-mapping.h:748:5: note: declared here
 int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Caused by commit

  086d08725d34 ("remoteproc: create vdev subdevice with specific dma memory pool")

interacting with commit

  82c5de0ab8db ("dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag")

from the dma-mapping tree.

I have applied the following merge fix patch:

From: Stephen Rothwell <[email-masked]>
Date: Fri, 22 Feb 2019 16:14:45 +1100
Subject: [PATCH] remoteproc: fix for "dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag"

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 drivers/remoteproc/remoteproc_virtio.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
index 337327d21c1c..44774de6f17b 100644
--- a/drivers/remoteproc/remoteproc_virtio.c
+++ b/drivers/remoteproc/remoteproc_virtio.c
@@ -370,8 +370,7 @@ int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id)
 			/* Associate vdev buffer memory pool to vdev subdev */
 			ret = dma_declare_coherent_memory(dev, pa,
 							   mem->da,
-							   mem->len,
-							   DMA_MEMORY_EXCLUSIVE);
+							   mem->len);
 			if (ret < 0) {
 				dev_err(dev, "Failed to associate buffer\n");
 				goto out;
-- 
2.20.1

-- 
Cheers,
Stephen Rothwell