a question for kernel-ml

[Mrzhang-dada]

I'm sorry to bother you. However, I encountered the following problem while compiling my project into the kernel. Could you please advise on how to solve it? I'm using Ubuntu 18.04 as my operating system and GCC version 7.5.

MODPOST vmlinux.o
block/mq-adios.o: In function 'dd_init_queue':
/home/niuma/kernel-ml/kernel-ml-linux/block/mq-adios.c:493: undefined reference to 'build_linear_regression'
/home/niuma/kernel-ml/kernel-ml-linux/block/mq-adios.c:494: undefined reference to 'io_scheduler_linear_check_correction'
/home/niuma/kernel-ml/kernel-ml-linux/block/mq-adios.c:496: undefined reference to 'set_random_matrix'
block/mq-adios.o: In function '__dd_dispatch_request':
/home/niuma/kernel-ml/kernel-ml-linux/block/mq-adios.c:404: undefined reference to 'io_scheduler_linear_evaluate'
/home/niuma/kernel-ml/kernel-ml-linux/block/mq-adios.c:394: undefined reference to 'io_scheduler_linear_evaluate'
/home/niuma/kernel-ml/kernel-ml-linux/block/mq-adios.c:384: undefined reference to 'io_scheduler_linear_evaluate'
Makefile:1022: recipe for target 'vmlinux' failed.

This error message is indicating that there are undefined references to several functions in the mq-adios.c file, including "build_linear_regression", "io_scheduler_linear_check_correction", "set_random_matrix", and "io_scheduler_linear_evaluate". These errors occurred during the compilation of "vmlinux" and resulted in the failure of the make command.

[zhourrr]

Were you able to fix this? I have run into a similar problem.

[JiaHuann]

The same，I stuck with printing AR kernel/built-in.a.
Looking forward to some of resolutions.

[iumitakgun]

Hi Everybody, sorry for the late response. Could you please check makefile in "kernel-ml-linux/block/" for the paths. linking for kml.a we use path and I think we statically defined them. Please let me know if this solves the issue.

[sg11235]

I'm sorry to bother you, but I have modified the path like below:
#KBUILD_CFLAGS += -I/home/umit/research/kernel-ml/kml/include
KBUILD_CFLAGS += -I/home/gs/Desktop/KML/kernel-ml/include
I made this modification but still get the same error. I don't know if there is a mistake in my modification, or there is a mistake in my understanding. I really hope to get help.

Hi Everybody, sorry for the late response. Could you please check makefile in "kernel-ml-linux/block/" for the paths. linking for kml.a we use path and I think we statically defined them. Please let me know if this solves the issue.