Issue with making rtl8723 driver on 4.15.7-r1 kernel

stormblade · n00b Joined: 06 Sep 2017 Posts: 65

I was struggling to build rtl8723 wifi driver for the newest kernel 4.15.7-r1 from gentoo-sources and got this "make" error, can't fully understand what is the problem. I have a guess that it just might be not working with 4.15+ kernels as it worked on 4.14.13, but it's just a guess and I wonder what can it be, and how can I fix it, if possible
https://paste.pound-python.org/show/viLExJqlW7nPMdekEQkJ/

fedeliallalinea · Posted: Tue Mar 06, 2018 9:39 am Post subject:

It seems that init_timer is deprecate in kernel 4.15, you should wait that bug is resolved.
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stormblade · n00b Joined: 06 Sep 2017 Posts: 65

So the problem is in the driver implementation that needs to be updated to suit the new kernel?

fedeliallalinea · Posted: Tue Mar 06, 2018 10:37 am Post subject:

stormblade · n00b Joined: 06 Sep 2017 Posts: 65

I have little will to wait for a patch which may not happen at all, and would rather do it myself. Sadly, I have no experience in C programming and all this driver/kernel programming stuff.
Found a driver which, as it seems, needed some similar commits: https://github.com/lwfinger/rtl8188eu/commit/1f08a062ad1fec5bc050177604e25430a7bdcf46
Could be used as an example, probably. Or are there any patches out there that can do the work... Anything?

fedeliallalinea · Posted: Tue Mar 06, 2018 6:05 pm Post subject:

You can try to apply patch from links, or you can try directly the repository that contains your driver
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stormblade · n00b Joined: 06 Sep 2017 Posts: 65

Thanks for pointing out to this repository, I didn't notice rtl8723de driver when was reviewing it earlier.
sudo make install was successful, however when I tried to modprobe the new driver, I got this:
modprobe: ERROR: Error running install command for rtlwifi
modprobe: ERROR: could not insert 'rtl8723de': Operation not permitted
despite the fact that I ran it from sudo (so it's not a permission problem, then what could it be?)

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

What does dmesg say about the failure?

stormblade · n00b Joined: 06 Sep 2017 Posts: 65

Nothing more than that:
udevd[1927]: Error running install command for rtlwifi

fedeliallalinea · Posted: Wed Mar 07, 2018 7:15 am Post subject:

See this comment
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stormblade · n00b Joined: 06 Sep 2017 Posts: 65

1) I run as root
2) Secure Boot is disabled in Bios
I also don't think this might be the case as secure boot restricts the usage of certain drivers etc not verified by manufacturer, and I successfuly modprobed the earlier version of the same driver, but for another kernel (4.14.13)

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

stormblade · n00b Joined: 06 Sep 2017 Posts: 65

You are right, syslog is more informative here:
https://paste.pound-python.org/show/fZD01e713YVZ2wOhiCUR/

However, I can't remember the consequences that led to most of these logs yesterday :-[

I also tried logging "strace sudo modprobe -v rtl8723de", but it turned out not to be very informative
https://paste.pound-python.org/show/XMirpaVEclTCnjP0tGgM/