Hello all, I am new to Linux kernel development and am hoping to contribute to the Linux community. I recently read Robert Love's LKD book, and have gone through some of the documents and patch submitting guidelines on kernelnewbies.org. I will be pursuing my undergraduate thesis research in the field of real-time (operating) systems and as such, I expect to be closely involved with the timer and interrupt subsystems in Linux (as well as other areas, but to a lesser degree). I am also hoping to work with the hrtimer subsystem, and while going through the latest code (4.5-rc6) of the same, I found a very minor code-level change that could be incorporated (redundant #ifdef). Would such a change in a core kernel file be acceptable coming from a beginner? Or should I aim for the staging drivers first? I very much look forward to contributing my first patch! Thanks, Pratyush