On Fri, Jul 12, 2019 at 09:36:23AM +0200, Greg KH wrote:
> The following changes since commit f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a:
>   Linux 5.2-rc3 (2019-06-02 13:55:33 -0700)
> are available in the Git repository at:
>   git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 
> tags/driver-core-5.3-rc1
> for you to fetch changes up to c33d442328f556460b79aba6058adb37bb555389:
>   debugfs: make error message a bit more verbose (2019-07-08 10:44:57 +0200)
> ----------------------------------------------------------------
> Driver Core and debugfs changes for 5.3-rc1
> Here is the "big" driver core and debugfs changes for 5.3-rc1
> It's a lot of different patches, all across the tree due to some api
> changes and lots of debugfs cleanups.  Because of this, there is going
> to be some merge issues with your tree at the moment, I'll follow up
> with the expected resolutions to make it easier for you.
> Other than the debugfs cleanups, in this set of changes we have:
>       - bus iteration function cleanups (will cause build warnings
>         with s390 and coresight drivers in your tree)

Here's the s390 patch that was sent previously to resolve this issue.

From: Christian Borntraeger <borntrae...@de.ibm.com>

commit 92ce7e83b4e5 ("driver_find_device: Unify the match function with
class_find_device()") changed the prototype of driver_find_device to
use a const void pointer.

Change match_apqn accordingly.

Fixes: ec89b55e3bce ("s390: ap: implement PAPQ AQIC interception in kernel")
Signed-off-by: Christian Borntraeger <borntrae...@de.ibm.com>
Signed-off-by: Vasily Gorbik <g...@linux.ibm.com>
 drivers/s390/crypto/vfio_ap_ops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/crypto/vfio_ap_ops.c 
index 2c9fb1423a39..7e85ba7c6ef0 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -26,7 +26,7 @@
 static int vfio_ap_mdev_reset_queues(struct mdev_device *mdev);
-static int match_apqn(struct device *dev, void *data)
+static int match_apqn(struct device *dev, const void *data)
        struct vfio_ap_queue *q = dev_get_drvdata(dev);

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