Debdiff to enable support for both 6.8 and 6.14 kernels.
** Description changed:
[ Impact ]
DKMS make.log for langford-0.0.20130108 for kernel 6.14.0-15-generic (x86_64)
Fri May 16 21:40:41 UTC 2025
make: Entering directory '/usr/src/linux-headers-6.14.0-15-generic'
make[1]: Entering directory '/var/lib/dkms/langford/0.0.20130108/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] langford.o
+ 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] langford.o
In file included from langford.c:17:
langford.h:115: warning: "MAX" redefined
- 115 | #define MAX(a, b) (((a) > (b)) ? (a) : (b))
- |
+ 115 | #define MAX(a, b) (((a) > (b)) ? (a) : (b))
+ |
In file included from
/usr/src/linux-headers-6.14.0-15-generic/include/linux/kernel.h:28,
- from langford.h:10:
+ from langford.h:10:
/usr/src/linux-headers-6.14.0-15-generic/include/linux/minmax.h:315: note:
this is the location of the previous definition
- 315 | #define MAX(a, b) __cmp(max, a, b)
- |
+ 315 | #define MAX(a, b) __cmp(max, a, b)
+ |
langford.h:118: warning: "MIN" redefined
- 118 | #define MIN(a, b) (((a) < (b)) ? (a) : (b))
- |
+ 118 | #define MIN(a, b) (((a) < (b)) ? (a) : (b))
+ |
/usr/src/linux-headers-6.14.0-15-generic/include/linux/minmax.h:314: note:
this is the location of the previous definition
- 314 | #define MIN(a, b) __cmp(min, a, b)
- |
+ 314 | #define MIN(a, b) __cmp(min, a, b)
+ |
langford.c:900:19: error: ‘no_llseek’ undeclared here (not in a function);
did you mean ‘noop_llseek’?
- 900 | .llseek = no_llseek
- | ^
- | noop_llseek
+ 900 | .llseek = no_llseek
+ | ^
+ | noop_llseek
make[3]: ***
[/usr/src/linux-headers-6.14.0-15-generic/scripts/Makefile.build:207:
langford.o] Error 1
make[2]: *** [/usr/src/linux-headers-6.14.0-15-generic/Makefile:1999: .]
Error 2
make[1]: *** [/usr/src/linux-headers-6.14.0-15-generic/Makefile:251:
__sub-make] Error 2
make[1]: Leaving directory '/var/lib/dkms/langford/0.0.20130108/build'
make: *** [Makefile:251: __sub-make] Error 2
make: Leaving directory '/usr/src/linux-headers-6.14.0-15-generic'
[ Test case ]
Install the latest linux-6.14 kernel on Noble:
$ sudo add-apt-repository ppa:canonical-kernel-team/ppa
$ sudo apt install linux-generic-hwe-24.04-wip
Install langford-dkms:
$ sudo apt install langford-dkms
Load the module:
- $ sudo modprobe
+ $ sudo modprobe langford
The same procedure can be repeated on linux-6.8 to test for possible
regressions.
[ Fix ]
Apply patches from langford-dkms from Plucky release:
- * debian/patches/
-
+ * debian/patches/conditional-no_llseek
+ * debian/patches/conditional-min-max
[ Regression potential ]
We may experience regressions in systems that are using the langford
drivers, especially with kernels >= 6.8 kernel.
** Patch added: "langford-support-noble-6.14.debdiff"
https://bugs.launchpad.net/ubuntu/+source/langford/+bug/232/+attachment/5878062/+files/langford-support-noble-6.14.debdiff
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https://bugs.launchpad.net/bugs/232
Title:
langford-dkms FTBS in Noble with the linux-6.14-hwe kernel
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