stevegaron/samsung-kernel-crespo — comment on commit d78a9b39a7df35fe7bf364280e60fe0ab2d00d8e
File:  line 0
By stevegaron:

I took this commit from someone else kernel. Originally it was just #if 0 which is not configurable so I made it configurable. I think PRINTK auto select if some other options are selected. So even if you deselect it PRINTK when you call your 'make defconfig' before building the kernel, it get reselected. So this mods prevent defconfig to use PRINTK by ignoring what it has to write.

That said I'll verify what I just said...