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Message-ID: <20221130123851.6a9f2242@canb.auug.org.au>
Date:   Wed, 30 Nov 2022 12:38:51 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Greg KH <greg@...ah.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the driver-core tree

Hi all,

After merging the driver-core tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

drivers/scsi/cxlflash/main.c: In function 'cxlflash_class_init':
drivers/scsi/cxlflash/main.c:3890:33: error: assignment to 'char * (*)(const struct device *, umode_t *)' {aka 'char * (*)(const struct device *, short unsigned int *)'} from incompatible pointer type 'char * (*)(struct device *, umode_t *)' {aka 'char * (*)(struct device *, short unsigned int *)'} [-Werror=incompatible-pointer-types]
 3890 |         cxlflash_class->devnode = cxlflash_devnode;
      |                                 ^

Caused by commit

  ff62b8e6588f ("driver core: make struct class.devnode() take a const *")

I have applied the following patch for today (please add it to your tree).

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 30 Nov 2022 12:13:00 +1100
Subject: [PATCH] driver core: fix up missed scsi/cxlflash class.devnode() conversion.

Fixes: ff62b8e6588f ("driver core: make struct class.devnode() take a const *")
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/scsi/cxlflash/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index cd1324ec742d..395b00b942f7 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -3857,7 +3857,7 @@ static void cxlflash_pci_resume(struct pci_dev *pdev)
  *
  * Return: Allocated string describing the devtmpfs structure.
  */
-static char *cxlflash_devnode(struct device *dev, umode_t *mode)
+static char *cxlflash_devnode(const struct device *dev, umode_t *mode)
 {
 	return kasprintf(GFP_KERNEL, "cxlflash/%s", dev_name(dev));
 }
-- 
2.35.1

I also added the following (found using
git grep '(struct device\s*\*[^,]*,\s*umode_t[^,]*)'
- please also add this):

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 30 Nov 2022 12:32:57 +1100
Subject: [PATCH] driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion.

Fixes: ff62b8e6588f ("driver core: make struct class.devnode() take a const *")
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/s390/char/hmcdrv_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/char/hmcdrv_dev.c b/drivers/s390/char/hmcdrv_dev.c
index 20e9cd542e03..cb8fdf057eca 100644
--- a/drivers/s390/char/hmcdrv_dev.c
+++ b/drivers/s390/char/hmcdrv_dev.c
@@ -90,7 +90,7 @@ static dev_t hmcdrv_dev_no; /* device number (major/minor) */
  *
  * Return: recommended device file name in /dev
  */
-static char *hmcdrv_dev_name(struct device *dev, umode_t *mode)
+static char *hmcdrv_dev_name(const struct device *dev, umode_t *mode)
 {
 	char *nodename = NULL;
 	const char *devname = dev_name(dev); /* kernel device name */
-- 
2.35.1

-- 
Cheers,
Stephen Rothwell

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