DKMS make.log for acpi-call-1.1.0 for kernel 4.13.0-16-generic (x86_64) Wed Oct 18 12:10:38 UTC 2017 make: Entering directory '/usr/src/linux-headers-4.13.0-16-generic' AR /var/lib/dkms/acpi-call/1.1.0/build/built-in.o CC [M] /var/lib/dkms/acpi-call/1.1.0/build/acpi_call.o /var/lib/dkms/acpi-call/1.1.0/build/acpi_call.c: In function ‘acpi_proc_write’: /var/lib/dkms/acpi-call/1.1.0/build/acpi_call.c:277:9: error: implicit declaration of function ‘copy_from_user’ [-Werror=implicit-function-declaration] if (copy_from_user( input, buff, len )) { ^ cc1: some warnings being treated as errors scripts/Makefile.build:309: recipe for target '/var/lib/dkms/acpi-call/1.1.0/build/acpi_call.o' failed make[1]: *** [/var/lib/dkms/acpi-call/1.1.0/build/acpi_call.o] Error 1 Makefile:1546: recipe for target '_module_/var/lib/dkms/acpi-call/1.1.0/build' failed make: *** [_module_/var/lib/dkms/acpi-call/1.1.0/build] Error 2 make: Leaving directory '/usr/src/linux-headers-4.13.0-16-generic'