On 10/1/21 8:31 PM, Ajay Garg wrote:
Hello All, Let's say, I want to make a simple printk change to drivers/pci/bus.c, compile it, load it, test it. Now, since bus.o is built as a result of CONFIG_PCI=y in drivers/pci/Makefile, so this module is statically built, and as a result doing a "make M=drivers/pci" does-not-pick-up-the-change / have-any-effect. Doing a simple "make" takes too long, everytime for even a trivial change. So, what is the recommended way to do kernel-development for static modules? Will be grateful for pointers.
Just to build drivers/pci/bus.o, you do $ make drivers/pci/bus.o That will tell you if you have any build errors/warnings. For run-time testing, AFAIK you don't have any choice but to build a full kernel and boot it. -- ~Randy
