Public bug reported:

[ Impact ]

DKMS make.log for ivsc-driver-0~git202311021215.73a044d9-0ubuntu2 for kernel 
6.17.0-7-generic (x86_64)
Thu Dec 18 22:19:24 UTC 2025
make -C /lib/modules/6.17.0-7-generic/build 
M=/var/lib/dkms/ivsc-driver/0~git202311021215.73a044d9-0ubuntu2/build modules
make[1]: Entering directory '/usr/src/linux-headers-6.17.0-7-generic'
make[2]: Entering directory 
'/var/lib/dkms/ivsc-driver/0~git202311021215.73a044d9-0ubuntu2/build'
warning: the compiler differs from the one used to build the kernel
  The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 
13.3.0-6ubuntu2~24.04) 13.3.0
  You are using:           gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
  CC [M]  drivers/mfd/ljca.o
  CC [M]  drivers/spi/spi-ljca.o
  CC [M]  drivers/gpio/gpio-ljca.o
  CC [M]  drivers/i2c/busses/i2c-ljca.o
drivers/mfd/ljca.c:323:6: warning: no previous prototype for ‘ljca_dump’ 
[-Wmissing-prototypes]
  323 | void ljca_dump(struct ljca_dev *ljca, void *buf, int len)
      |      ^~~~~~~~~
drivers/gpio/gpio-ljca.c:256:6: warning: no previous prototype for 
‘ljca_gpio_event_cb’ [-Wmissing-prototypes]
  256 | void ljca_gpio_event_cb(struct platform_device *pdev, u8 cmd,
      |      ^~~~~~~~~~~~~~~~~~
drivers/gpio/gpio-ljca.c: In function ‘ljca_gpio_probe’:
drivers/gpio/gpio-ljca.c:426:27: error: assignment to ‘int (*)(struct gpio_chip 
*, unsigned int,  int)’ from incompatible pointer type ‘void (*)(struct 
gpio_chip *, unsigned int,  int)’ [-Werror=incompatible-pointer-types]
  426 |         ljca_gpio->gc.set = ljca_gpio_set_value;
      |                           ^
drivers/gpio/gpio-ljca.c: At top level:
drivers/gpio/gpio-ljca.c:461:19: error: initialization of ‘void (*)(struct 
platform_device *)’ from incompatible pointer type ‘int (*)(struct 
platform_device *)’ [-Werror=incompatible-pointer-types]
  461 |         .remove = ljca_gpio_remove,
      |                   ^~~~~~~~~~~~~~~~
drivers/gpio/gpio-ljca.c:461:19: note: (near initialization for 
‘ljca_gpio_driver.remove’)
drivers/spi/spi-ljca.c: In function ‘ljca_spi_prepare_message’:
drivers/spi/spi-ljca.c:213:41: error: implicit declaration of function 
‘spi_master_get_devdata’; did you mean ‘spi_controller_get_devdata’? 
[-Werror=implicit-function-declaration]
  213 |         struct ljca_spi_dev *ljca_spi = spi_master_get_devdata(master);
      |                                         ^~~~~~~~~~~~~~~~~~~~~~
      |                                         spi_controller_get_devdata
drivers/spi/spi-ljca.c:213:41: warning: initialization of ‘struct ljca_spi_dev 
*’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
drivers/spi/spi-ljca.c: In function ‘ljca_spi_transfer_one’:
drivers/spi/spi-ljca.c:224:41: warning: initialization of ‘struct ljca_spi_dev 
*’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
  224 |         struct ljca_spi_dev *ljca_spi = spi_master_get_devdata(master);
      |                                         ^~~~~~~~~~~~~~~~~~~~~~
In file included from 
/usr/src/linux-headers-6.17.0-7-generic/include/vdso/const.h:5,
                 from 
/usr/src/linux-headers-6.17.0-7-generic/include/vdso/bits.h:5,
                 from 
/usr/src/linux-headers-6.17.0-7-generic/include/linux/bits.h:5,
                 from 
/usr/src/linux-headers-6.17.0-7-generic/include/linux/ioport.h:13,
                 from 
/usr/src/linux-headers-6.17.0-7-generic/include/linux/acpi.h:12,
                 from drivers/spi/spi-ljca.c:8:
drivers/spi/spi-ljca.c:228:34: error: invalid use of undefined type ‘struct 
spi_master’
  228 |         div = DIV_ROUND_UP(master->max_speed_hz, xfer->speed_hz) / 2 - 
1;
      |                                  ^~
/usr/src/linux-headers-6.17.0-7-generic/include/uapi/linux/const.h:51:40: note: 
in definition of macro ‘__KERNEL_DIV_ROUND_UP’
   51 | #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
      |                                        ^
drivers/spi/spi-ljca.c:228:15: note: in expansion of macro ‘DIV_ROUND_UP’
  228 |         div = DIV_ROUND_UP(master->max_speed_hz, xfer->speed_hz) / 2 - 
1;
      |               ^~~~~~~~~~~~
drivers/spi/spi-ljca.c: In function ‘ljca_spi_probe’:
drivers/spi/spi-ljca.c:254:18: error: implicit declaration of function 
‘spi_alloc_master’; did you mean ‘spi_alloc_target’? 
[-Werror=implicit-function-declaration]
  254 |         master = spi_alloc_master(&pdev->dev, sizeof(*ljca_spi));
      |                  ^~~~~~~~~~~~~~~~
      |                  spi_alloc_target
drivers/spi/spi-ljca.c:254:16: warning: assignment to ‘struct spi_master *’ 
from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
  254 |         master = spi_alloc_master(&pdev->dev, sizeof(*ljca_spi));
      |                ^
drivers/spi/spi-ljca.c:259:18: warning: assignment to ‘struct ljca_spi_dev *’ 
from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
  259 |         ljca_spi = spi_master_get_devdata(master);
      |                  ^
drivers/spi/spi-ljca.c:263:25: error: invalid use of undefined type ‘struct 
spi_master’
  263 |         ljca_spi->master->dev.of_node = pdev->dev.of_node;
      |                         ^~
drivers/spi/spi-ljca.c:266:45: error: invalid use of undefined type ‘struct 
spi_master’
  266 |         ACPI_COMPANION_SET(&ljca_spi->master->dev, 
ACPI_COMPANION(&pdev->dev));
      |                                             ^~
/usr/src/linux-headers-6.17.0-7-generic/include/linux/acpi.h:58:60: note: in 
definition of macro ‘ACPI_COMPANION_SET’
   58 | #define ACPI_COMPANION_SET(dev, adev)   set_primary_fwnode(dev, (adev) 
? \
      |                                                            ^~~
drivers/spi/spi-ljca.c:268:15: error: invalid use of undefined type ‘struct 
spi_master’
  268 |         master->bus_num = -1;
      |               ^~
drivers/spi/spi-ljca.c:269:15: error: invalid use of undefined type ‘struct 
spi_master’
  269 |         master->mode_bits = SPI_CPHA | SPI_CPOL;
      |               ^~
drivers/spi/spi-ljca.c:270:15: error: invalid use of undefined type ‘struct 
spi_master’
  270 |         master->prepare_message = ljca_spi_prepare_message;
      |               ^~
drivers/spi/spi-ljca.c:271:15: error: invalid use of undefined type ‘struct 
spi_master’
  271 |         master->transfer_one = ljca_spi_transfer_one;
      |               ^~
drivers/spi/spi-ljca.c:272:15: error: invalid use of undefined type ‘struct 
spi_master’
  272 |         master->auto_runtime_pm = false;
      |               ^~
drivers/spi/spi-ljca.c:273:15: error: invalid use of undefined type ‘struct 
spi_master’
  273 |         master->max_speed_hz = LJCA_SPI_BUS_MAX_HZ;
      |               ^~
drivers/i2c/busses/i2c-ljca.c:454:19: error: initialization of ‘void (*)(struct 
platform_device *)’ from incompatible pointer type ‘int (*)(struct 
platform_device *)’ [-Werror=incompatible-pointer-types]
  454 |         .remove = ljca_i2c_remove,
      |                   ^~~~~~~~~~~~~~~
drivers/i2c/busses/i2c-ljca.c:454:19: note: (near initialization for 
‘ljca_i2c_driver.remove’)
drivers/spi/spi-ljca.c:275:15: error: implicit declaration of function 
‘devm_spi_register_master’; did you mean ‘devm_spi_register_controller’? 
[-Werror=implicit-function-declaration]
  275 |         ret = devm_spi_register_master(&pdev->dev, master);
      |               ^~~~~~~~~~~~~~~~~~~~~~~~
      |               devm_spi_register_controller
cc1: some warnings being treated as errors
drivers/spi/spi-ljca.c:284:9: error: implicit declaration of function 
‘spi_master_put’; did you mean ‘spi_dev_put’? 
[-Werror=implicit-function-declaration]
  284 |         spi_master_put(master);
      |         ^~~~~~~~~~~~~~
      |         spi_dev_put
make[4]: *** 
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287: 
drivers/gpio/gpio-ljca.o] Error 1
make[4]: *** Waiting for unfinished jobs....
drivers/spi/spi-ljca.c: In function ‘ljca_spi_dev_remove’:
drivers/spi/spi-ljca.c:290:37: error: implicit declaration of function 
‘spi_master_get’; did you mean ‘spi_dev_get’? 
[-Werror=implicit-function-declaration]
  290 |         struct spi_master *master = 
spi_master_get(platform_get_drvdata(pdev));
      |                                     ^~~~~~~~~~~~~~
      |                                     spi_dev_get
drivers/spi/spi-ljca.c:290:37: warning: initialization of ‘struct spi_master *’ 
from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
drivers/spi/spi-ljca.c:291:41: warning: initialization of ‘struct ljca_spi_dev 
*’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
  291 |         struct ljca_spi_dev *ljca_spi = spi_master_get_devdata(master);
      |                                         ^~~~~~~~~~~~~~~~~~~~~~
drivers/spi/spi-ljca.c: In function ‘ljca_spi_dev_suspend’:
drivers/spi/spi-ljca.c:302:16: error: implicit declaration of function 
‘spi_master_suspend’; did you mean ‘spi_controller_suspend’? 
[-Werror=implicit-function-declaration]
  302 |         return spi_master_suspend(master);
      |                ^~~~~~~~~~~~~~~~~~
      |                spi_controller_suspend
cc1: some warnings being treated as errors
make[4]: *** 
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287: 
drivers/i2c/busses/i2c-ljca.o] Error 1
drivers/spi/spi-ljca.c: In function ‘ljca_spi_dev_resume’:
drivers/spi/spi-ljca.c:309:16: error: implicit declaration of function 
‘spi_master_resume’; did you mean ‘spi_controller_resume’? 
[-Werror=implicit-function-declaration]
  309 |         return spi_master_resume(master);
      |                ^~~~~~~~~~~~~~~~~
      |                spi_controller_resume
drivers/spi/spi-ljca.c: At top level:
drivers/spi/spi-ljca.c:323:27: error: initialization of ‘void (*)(struct 
platform_device *)’ from incompatible pointer type ‘int (*)(struct 
platform_device *)’ [-Werror=incompatible-pointer-types]
  323 |         .remove         = ljca_spi_dev_remove,
      |                           ^~~~~~~~~~~~~~~~~~~
drivers/spi/spi-ljca.c:323:27: note: (near initialization for 
‘spi_ljca_driver.remove’)
cc1: some warnings being treated as errors
make[4]: *** 
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287: 
drivers/spi/spi-ljca.o] Error 1
make[3]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:2016: .] Error 2
make[2]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:248: __sub-make] 
Error 2
make[2]: Leaving directory 
'/var/lib/dkms/ivsc-driver/0~git202311021215.73a044d9-0ubuntu2/build'
make[1]: *** [Makefile:248: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-6.17.0-7-generic'
make: *** [Makefile:44: all] Error 2

[ Test case ]

Install the latest linux-6.17 kernel on Noble:

$ sudo add-apt-repository ppa:canonical-kernel-team/ppa3
$ sudo apt install linux-generic-hwe-24.04-edge

Install intel-vsc-dkms:

$ sudo apt install intel-vsc-dkms

Module built and installed successfully

Load the modules:

$ sudo modprobe ljca
$ sudo modprobe spi-ljca
$ sudo modprobe gpio-ljca
$ sudo modprobe i2c-ljca
$ sudo modprobe mei-vsc
$ sudo modprobe intel_vsc
$ sudo modprobe mei_csi
$ sudo modprobe mei_ace
$ sudo modprobe mei_pse
$ sudo modprobe mei_ace_debug

Modules loaded successfully

The same procedure should be repeated on linux-6.8 to test for possible
regressions.

[ Fix ]

Patches to enable kernels >= 6.8:

-debian/patches/0006-Linux-6.8-through-6.17-compat.patch
-Adding dh-dkms as dependency

Adding Ubuntu Developers as Maintainer

[ Regression potential ]

We may experience regressions in systems that are using the intel-vsc
drivers, especially with kernels >= 6.8 kernel.

** Affects: ivsc-driver (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: ivsc-driver (Ubuntu Noble)
     Importance: Undecided
         Status: New

** Also affects: ivsc-driver (Ubuntu Noble)
   Importance: Undecided
       Status: New

-- 
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2136839

Title:
  intel-vsc-dkms FTBS in Noble with the linux-6.17 kernel

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