Dear Lijun Pan,

In message 31b1cf51fd954208b6140035eb705888@DM2PR03MB368.namprd03.prod.outlook.com you wrote:

...

BTW: what exactly are the license terms for this code?

The code taken from Linux is using GPLv2.

Are you sure about this?

I think these functions were copied from include/linux/kernel.h - is this correct? In this case there would be no explicit license terms (there is no license header in that file), so we assume the global project wide license applies?

Especially as include/linux/compat.h contains no license tag either we should clearly document this.

Best regards,

Wolfgang Denk