** Description changed:
+ [Impact]
+
Building this module in focal against the new linux-hwe-5.8 returns the
- following error:
+ following errors:
/var/lib/dkms/v4l2loopback/0.12.3/build/v4l2loopback.c:137:47: warning:
‘struct timeval’ declared inside parameter list will not be visible outside of
this definition or declaration
- 137 | static inline void v4l2l_get_timestamp(struct timeval *tv) {
- | ^~~~~~~
+ 137 | static inline void v4l2l_get_timestamp(struct timeval *tv) {
+ | ^~~~~~~
/var/lib/dkms/v4l2loopback/0.12.3/build/v4l2loopback.c: In function
‘v4l2l_get_timestamp’:
/var/lib/dkms/v4l2loopback/0.12.3/build/v4l2loopback.c:147:4: error:
dereferencing pointer to incomplete type ‘struct timeval’
- 147 | tv->tv_sec = (time_t)ts.tv_sec;
- | ^~
+ 147 | tv->tv_sec = (time_t)ts.tv_sec;
+ | ^~
+ ...
+ /var/lib/dkms/v4l2loopback/0.12.3/build/v4l2loopback.c:2441:44: error:
‘VFL_TYPE_GRABBER’ undeclared (first use in this function); did you mean
‘VFL_TYPE_SUBDEV’?
+ 2441 | if (video_register_device(devs[i]->vdev, VFL_TYPE_GRABBER,
video_nr[i]) < 0) {
+ | ^~~~~~~~~~~~~~~~
+ | VFL_TYPE_SUBDEV
+ cc1: some warnings being treated as errors
+
+
+ [Test case]
+
+ $ sudo apt install v4l2loopback-dkms
+
+ Build errors are reported in make.log.
+
+ [Fix]
+
+ Fix by adding some #ifdef's to properly support the struct timeval (that
+ is not available anymore in 5.8) and handle the rename of
+ VFL_TYPE_GRABBER to VFL_TYPE_VIDEO (in 5.8).
+
+ [Regression potential]
+
+ The source code for the 5.4 kernel remains the same, so there is no
+ regression potential. The new changes are all conditionals and they are
+ all applied to the 5.8 kernel.
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https://bugs.launchpad.net/bugs/1900997
Title:
v4l2loopback: build error in focal with new kernel linux-hwe.5.8
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