April 5, 2014
5:02 a.m.
Hi, I am trying to fix a coding issue . I get the following warning when my module is checked with checkpatch.pl. How can i remove the warning. I see a lot of drivers using printk() function. $ perl ~/linux-stable/scripts/checkpatch.pl -f hello.c WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(... to printk(KERN_DEBUG ... #6: FILE: hello.c:6: + printk(KERN_DEBUG "Hello World!\n"); WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(... to printk(KERN_DEBUG ... #12: FILE: hello.c:12: + printk(KERN_DEBUG "hello module unloaded\n");