linux-next: build failure after merge of the driver-core tree

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Hi all,

After merging the driver-core tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from include/linux/linkage.h:7,
                 from include/linux/kernel.h:17,
                 from drivers/accel/qaic/mhi_qaic_ctrl.c:4:
drivers/accel/qaic/mhi_qaic_ctrl.c: In function 'mhi_qaic_ctrl_init':
include/linux/export.h:27:22: error: passing argument 1 of 'class_create' from incompatible pointer type [-Werror=incompatible-pointer-types]
   27 | #define THIS_MODULE (&__this_module)
      |                     ~^~~~~~~~~~~~~~~
      |                      |
      |                      struct module *
drivers/accel/qaic/mhi_qaic_ctrl.c:544:38: note: in expansion of macro 'THIS_MODULE'
  544 |         mqc_dev_class = class_create(THIS_MODULE, MHI_QAIC_CTRL_DRIVER_NAME);
      |                                      ^~~~~~~~~~~
In file included from include/linux/device.h:31,
                 from include/linux/mhi.h:9,
                 from drivers/accel/qaic/mhi_qaic_ctrl.c:5:
include/linux/device/class.h:229:54: note: expected 'const char *' but argument is of type 'struct module *'
  229 | struct class * __must_check class_create(const char *name);
      |                                          ~~~~~~~~~~~~^~~~
drivers/accel/qaic/mhi_qaic_ctrl.c:544:25: error: too many arguments to function 'class_create'
  544 |         mqc_dev_class = class_create(THIS_MODULE, MHI_QAIC_CTRL_DRIVER_NAME);
      |                         ^~~~~~~~~~~~
include/linux/device/class.h:229:29: note: declared here
  229 | struct class * __must_check class_create(const char *name);
      |                             ^~~~~~~~~~~~

Caused by commit

  1aaba11da9aa ("driver core: class: remove module * from class_create()")

interacting with commit

  566fc96198b4 ("accel/qaic: Add mhi_qaic_cntl")

from the drm tree.

I have applied the following merge fix patch for today.

From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Tue, 11 Apr 2023 14:16:57 +1000
Subject: [PATCH] fixup for "driver core: class: remove module * from class_create()"

interacting with "accel/qaic: Add mhi_qaic_cntl"

Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
 drivers/accel/qaic/mhi_qaic_ctrl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/accel/qaic/mhi_qaic_ctrl.c b/drivers/accel/qaic/mhi_qaic_ctrl.c
index 0c7e571f1f12..96db1580c72d 100644
--- a/drivers/accel/qaic/mhi_qaic_ctrl.c
+++ b/drivers/accel/qaic/mhi_qaic_ctrl.c
@@ -541,7 +541,7 @@ int mhi_qaic_ctrl_init(void)
 		return ret;
 
 	mqc_dev_major = ret;
-	mqc_dev_class = class_create(THIS_MODULE, MHI_QAIC_CTRL_DRIVER_NAME);
+	mqc_dev_class = class_create(MHI_QAIC_CTRL_DRIVER_NAME);
 	if (IS_ERR(mqc_dev_class)) {
 		ret = PTR_ERR(mqc_dev_class);
 		goto unregister_chrdev;
-- 
2.39.2

-- 
Cheers,
Stephen Rothwell

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