Linux-kernel debug printouts?
Is there a better way to debug printouts in the Linux kernel?
Right now littering the code with:
printk(KERN_DBG "%s:%d - %s() <message>", __FILE__, __LINE__, __FUNCTION__ );
Which isn't very clean.
There ought to be a way for the whole row to be #ifdef:ed in some nice way.
Answer
Use
/* At the top of the file, before any includes */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/printk.h>
/* in code... */
pr_devel("foobar happened\n");
as a basis (the standard practice). You can then add __FILE__ or __LINE__ to the pr_fmt definition if you need.