topic copy_to_user() error when compiling open source AMT driver in Intel® Business Client Software Development

copy_to_user() error when compiling open source AMT driver

opperpanter — Fri, 24 Jun 2011 21:48:30 GMT

Hello,

I downloaded the Linux AMT drivers from http://software.intel.com/en-us/articles/download-the-latest-intel-amt-open-source-drivers/#comment-61036

The article by Jeffrey Rott.

I tried to compile (make) on Debian Squeeze (2.6.32-amd64), but this fails:

root@NAS2:/home/qst/mei7/mei-7.1.20# make

cd src && make

make[1]: Entering directory `/home/qst/mei7/mei-7.1.20/src'

make -C /lib/modules/`uname -r`/build M=`pwd` modules

make[2]: Entering directory `/usr/src/linux-headers-2.6.32-5-amd64'

CC /home/qst/mei7/mei-7.1.20/src/iorw.o

/home/qst/mei7/mei-7.1.20/src/iorw.c: In function amthi_read:

/home/qst/mei7/mei-7.1.20/src/iorw.c:368: error: implicit declaration of funcn copy_to_user

make[5]: *** [/home/qst/mei7/mei-7.1.20/src/iorw.o] Error 1

make[4]: *** [_module_/home/qst/mei7/mei-7.1.20/src] Error 2

make[3]: *** [sub-make] Error 2

make[2]: *** [all] Error 2

make[2]: Leaving directory `/usr/src/linux-headers-2.6.32-5-amd64'

make[1]: *** [all] Error 2

make[1]: Leaving directory `/home/qst/mei7/mei-7.1.20/src'

make: *** [all] Error 2

root@NAS2:/home/qst/mei7/mei-7.1.20# ls

COPYING Makefile README src

Since I am new to linux, it might be something simple.

What do I need to change to fix this. Is this some compiler setting? Some kernel flag or come missing kernel library/header?

The README doesn't have info about requirements, so I am not sure whether my kernel version is approprioate.

Thanks!

copy_to_user() error when compiling open source AMT driver

opperpanter — Fri, 24 Jun 2011 23:56:09 GMT

Most google results told me to include a header file:

#include

This didn't work.

Since the MEI/AMT driver will be part of kernel 3.0 (2.6.40), I tried to look up the source code for that:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=drivers/staging/mei/iorw.c;h=697a2773d7cdde47f535488f592a463e1dd0e93a;hb=8eb73c6c2675f708283822bd058ad1e416836ba2

That version of the file is newer than the one in the download offered by Intel.

One of the differences is addition of:

#include

Now it compiles!

copy_to_user() error when compiling open source AMT driver

Judy_H_Intel — Sat, 25 Jun 2011 00:00:33 GMT

Hi opperpanter,
I'm glad you got it figured out and I'm also glad that you posted here so other developers will be able to see the solution.

Thanks,
Judy