hartkopp/can-isotp

Compiling of branch mainline-5.4+

Closed this issue · 2 comments

pompushko commented

Hello

I tried to test new branch on Ubuntu 23.10 with 6.5.0-10-generic x86_64 kernel

user@canbus-dev:~/can-isotp$ make
make -C /lib/modules/6.5.0-10-generic/build M=/home/user/can-isotp modules
make[1]: Entering directory '/usr/src/linux-headers-6.5.0-10-generic'
warning: the compiler differs from the one used to build the kernel
  The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
  You are using:           gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
  CC [M]  /home/user/can-isotp/net/can/isotp.o
  LD [M]  /home/user/can-isotp/net/can/can-isotp.o
  MODPOST /home/user/can-isotp/Module.symvers
  CC [M]  /home/user/can-isotp/net/can/can-isotp.mod.o
  LD [M]  /home/user/can-isotp/net/can/can-isotp.ko
  BTF [M] /home/user/can-isotp/net/can/can-isotp.ko
make[1]: Leaving directory '/usr/src/linux-headers-6.5.0-10-generic'

user@canbus-dev:~/can-isotp$ sudo make modules_install
make -C /lib/modules/6.5.0-10-generic/build M=/home/user/can-isotp modules_install
make[1]: Entering directory '/usr/src/linux-headers-6.5.0-10-generic'
  INSTALL /lib/modules/6.5.0-10-generic/updates/net/can/can-isotp.ko
  SIGN    /lib/modules/6.5.0-10-generic/updates/net/can/can-isotp.ko
  DEPMOD  /lib/modules/6.5.0-10-generic
Warning: modules_install: missing 'System.map' file. Skipping depmod.
make[1]: Leaving directory '/usr/src/linux-headers-6.5.0-10-generic'

And when I trying to insert new module:

user@canbus-dev:~/can-isotp$ sudo insmod ./net/can/can-isotp.ko
insmod: ERROR: could not insert module ./net/can/can-isotp.ko: Unknown symbol in module

Thank you

hartkopp commented

insmod does not necessarily load depending modules like can.ko

Please run modprobe can before the insmod

pompushko commented

Yeah. Indeed. That helped me.. Thank you!

Also, how can I load that module during system startup?
Because for now I should do that:

sudo modprobe -r can_isotp
sudo insmod ./net/can/can-isotp.ko

Only after reloading can-isotp module all start works fine. Thank you.

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
# Parameters can be specified after the module name.

can
can_isotp
vcan
can_raw
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