GobiSerial make error

Embedded wireless modules MC/EM Series
#1

Hello. I get an error like this. Whatever I did I couldn’t fix it. What is the problem?

I use this
SierraLinuxQMIdriversS2.42N2.64

my module
EM7455

System
Khadas VIM3 Pro Ubuntu 20.04

$ uname -a Linux Khadas 4.9.241 #2 SMP PREEMPT Thu Nov 26 03:11:53 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux

$ uname -r 4.9.241

fkaraokur@Khadas:~/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial$ su
Password:
root@Khadas:/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial# make
rm -rf *.o ~ core .depend ..cmd *.ko .mod.c .tmp_versions Module. modules.order .cache.mk *.o.ur-safe
make -C /lib/modules/4.9.241/build M=/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial modules
make[1]: Entering directory ‘/usr/src/linux-headers-4.9.241’
CC [M] /home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial/GobiSerial.o
/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial/GobiSerial.c:242:2: error: #warning “Assuming disc_mutex is locked external to the module” [-Werror=cpp]
242 | #warning “Assuming disc_mutex is locked external to the module”
| ^~~~~~~
cc1: all warnings being treated as errors
make[2]: *** [scripts/Makefile.build:341: /home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial/GobiSerial.o] Error 1
make[1]: *** [Makefile:1656: module/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial] Error 2
make[1]: Leaving directory ‘/usr/src/linux-headers-4.9.241’
make: *** [Makefile:25: all] Error 2
root@Khadas:/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiSerial#

#2

how about comment out the warning line?

#3

I’ve commented too many times but in vain! You can comment!

#4

do you known what is "comment out "?

didn’t here make the problem?

#warning “Assuming disc_mutex is locked external to the module” [-Werror=cpp]
242 | #warning “Assuming disc_mutex is locked external to the module”
| ^~~~~~~
cc1: all warnings being treated as errors

#5

I am stupid! I do not understand! Please describe it like a fool. More detailed

#6

You can get some idea here https://en.m.wikipedia.org/wiki/Comment_(computer_programming)

#7

I deleted that line and it was fixed

What error am I getting now? What should I do?

root@Khadas:/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiNet# make
make -C /lib/modules/4.9.241/build M=/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiNet modules
make[1]: Entering directory ‘/usr/src/linux-headers-4.9.241’
CC [M] /home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiNet/GobiUSBNet.o
In file included from ./include/linux/swap.h:8,
from ./include/linux/suspend.h:4,
from /home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiNet/QMIDevice.h:131,
from /home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiNet/GobiUSBNet.c:87:
./include/linux/memcontrol.h: In function ‘task_in_memcg_oom’:
./include/linux/memcontrol.h:484:10: error: returning ‘struct mem_cgroup *’ from a function with return type ‘unsigned char’ makes integer from pointer without a cast [-Werror=int-conversion]
484 | return p->memcg_in_oom;
| ~^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[2]: *** [scripts/Makefile.build:335: /home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiNet/GobiUSBNet.o] Error 1
make[1]: *** [Makefile:1656: module/home/fkaraokur/Downloads/SierraLinuxQMIdriversS2.42N2.64/GobiNet] Error 2
make[1]: Leaving directory ‘/usr/src/linux-headers-4.9.241’
make: *** [Makefile:47: all] Error 2

#8

Great, seems Wikipedia helps you as it explained in more detailed, especially when you don’t understand those stuff and asking people to describe it like a fool …

Btw, next time please respect to other human beings who is trying to help you.
I am not feeling good when someone asked me to be a fool.

#9

bad english. i use google translate. sorry