Can I use strtok() in a Linux Kernel Module?

Question

I need to do a parse on the data written to my module, and the use of the strtok() function of string.h would be useful. However I\'ve tried

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Answer 1

There is no strtok in the valid Linux Kernel API. You will have to write your own. See the section String Manipulation in the Linux Kernel API.

BTW, I would suggest staying away from strtok (or anything strtok-like). It's not reentrant and is unsafe in kernel code (which is inherently multithreaded).

If you're going to duplicate the function, consider duplicating strtok_r.