Code Style issue

[HABI S RAVI <habisbc@xxxxxxxxx>]

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");

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