Public bug reported:
[ Impact ]
smifb2-dkms does not compile from source in Noble with kernel 6.11:
/var/lib/dkms/smifb2/2.2.3.4.g1828e79/build/smi_drv.c:9:10: fatal error:
drm/drm_fbdev_generic.h: No such file or directory
9 | #include <drm/drm_fbdev_generic.h>
| ^~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/smifb2/2.2.3.4.g1828e79/build/smi_main.c: In function
‘smi_driver_load’:
/var/lib/dkms/smifb2/2.2.3.4.g1828e79/build/smi_main.c:409:25: error: implicit
declaration of function ‘vmalloc’; did you mean ‘kmalloc’?
[-Werror=implicit-function-declaration]
409 | cdev->regsave = vmalloc(1024);
| ^~~~~~~
| kmalloc
/var/lib/dkms/smifb2/2.2.3.4.g1828e79/build/smi_main.c:409:23: warning:
assignment to ‘struct smi_750_register *’ from ‘int’ makes pointer from integer
without a cast [-Wint-conversion]
409 | cdev->regsave = vmalloc(1024);
| ^
/var/lib/dkms/smifb2/2.2.3.4.g1828e79/build/smi_main.c: In function
‘smi_driver_unload’:
/var/lib/dkms/smifb2/2.2.3.4.g1828e79/build/smi_main.c:459:9: error: implicit
declaration of function ‘vfree’; did you mean ‘kvfree’?
[-Werror=implicit-function-declaration]
459 | vfree(cdev->regsave);
| ^~~~~
| kvfree
[ Test case ]
Install the latest linux-6.11 kernel on Noble:
$ sudo add-apt-repository ppa:canonical-kernel-team/ppa
$ sudo apt update
$ sudo apt install linux-image-6.11.0-12-generic \
linux-modules-6.11.0-12-generic \
linux-modules-extra-6.11.0-12-generic \
linux-headers-6.11.0-12-generic
Install smifb2-dkms:
$ sudo apt install smifb2-dkms
Load the module:
$ sudo modprobe smifb
The same procedure should be repeated on linux-6.8 to test for possible
regressions.
[ Fix ]
Patch the code to properly support the new linux 6.11 ABI.
[ Regression potential ]
We may experience regressions in systems that are using smifb2 with the
new 6.11 kernel.
** Affects: smifb2 (Ubuntu)
Importance: Undecided
Assignee: Massimiliano Pellizzer (mpellizzer)
Status: In Progress
** Affects: smifb2 (Ubuntu Noble)
Importance: Undecided
Assignee: Massimiliano Pellizzer (mpellizzer)
Status: In Progress
** Also affects: smifb2 (Ubuntu Noble)
Importance: Undecided
Status: New
** Changed in: smifb2 (Ubuntu Noble)
Assignee: (unassigned) => Massimiliano Pellizzer (mpellizzer)
** Changed in: smifb2 (Ubuntu Noble)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/2092177
Title:
smifb2-dkms FTBS in Noble with linux-6.11-hwe kernel
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