Package: v4l2loopback-dkms
Version: 0.14.0-1
Severity: normal
Tags: upstream
X-Debbugs-Cc: [email protected]
Hi,
Building against 6.15.0-rc7 fails with
v4l2loopback.c: In function ‘buffer_written’:
v4l2loopback.c:1791:9: error: implicit declaration of function ‘del_timer_sync’
[-Wimplicit-function-declaration]
1791 | del_timer_sync(&dev->sustain_timer);
| ^~~~~~~~~~~~~~
Simon
-- System Information:
Debian Release: 13.0
APT prefers testing-debug
APT policy: (500, 'testing-debug'), (500, 'testing')
Architecture: ppc64el (ppc64le)
Kernel: Linux 6.14.0-rc6+ (SMP w/64 CPU threads)
Kernel taint flags: TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: sysvinit (via /sbin/init)
LSM: AppArmor: enabled
Versions of packages v4l2loopback-dkms depends on:
ii dkms 3.1.8-1
v4l2loopback-dkms recommends no packages.
Versions of packages v4l2loopback-dkms suggests:
ii v4l2loopback-utils 0.14.0-1
-- no debconf information
DKMS (dkms-3.1.8) make.log for v4l2loopback/0.14.0 for kernel 6.15.0-rc7+
(ppc64le)
Thu May 22 04:03:29 AM CEST 2025
Building module(s)
# command: make -j64 KERNELRELEASE=6.15.0-rc7+
KERNEL_DIR=/lib/modules/6.15.0-rc7+/build v4l2loopback
++++++ To sign the module, you must set KBUILD_SIGN_KEY/KBUILD_SIGN_CERT to
point to the signing key/certificate!
++++++ For your convenience, we try to read these variables as
'mok_signing_key' resp. 'mok_certificate' from /etc/dkms/framework.conf
/etc/dkms/framework.conf.d/*.conf
++++++ If your certificate requires a password, pass it via the KBUILD_SIGN_PIN
env-var!
++++++ E.g. using 'export KBUILD_SIGN_PIN; read -s -p "Passphrase for signing
key : " KBUILD_SIGN_PIN; sudo --preserve-env=KBUILD_SIGN_PIN make sign'
Building v4l2-loopback driver...
make -C /lib/modules/6.15.0-rc7+/build
M=/var/lib/dkms/v4l2loopback/0.14.0/build KCPPFLAGS="" modules
make[1]: Entering directory '/usr/src/linux-headers-6.15.0-rc7+'
make[2]: Entering directory '/var/lib/dkms/v4l2loopback/0.14.0/build'
CC [M] v4l2loopback.o
v4l2loopback.c: In function ‘buffer_written’:
v4l2loopback.c:1791:9: error: implicit declaration of function ‘del_timer_sync’
[-Wimplicit-function-declaration]
1791 | del_timer_sync(&dev->sustain_timer);
| ^~~~~~~~~~~~~~
make[4]: *** [/usr/src/linux-headers-6.15.0-rc7+/scripts/Makefile.build:203:
v4l2loopback.o] Error 1
make[3]: *** [/usr/src/linux-headers-6.15.0-rc7+/Makefile:2003: .] Error 2
make[2]: *** [/usr/src/linux-headers-6.15.0-rc7+/Makefile:248: __sub-make]
Error 2
make[2]: Leaving directory '/var/lib/dkms/v4l2loopback/0.14.0/build'
make[1]: *** [Makefile:248: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-6.15.0-rc7+'
make: *** [Makefile:53: v4l2loopback.ko] Error 2
# exit code: 2
# elapsed time: 00:00:02
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