if (condition)
action();
+and
+
+if (condition)
+ do_this();
+else
+ do_that();
+
This does not apply if one branch of a conditional statement is a single
statement. Use braces in both branches.
which you should use to make sure messages are matched to the right device
and driver, and are tagged with the right level: dev_err(), dev_warn(),
dev_info(), and so forth. For messages that aren't associated with a
-particular device, <linux/kernel.h> defines pr_debug() and pr_info().
+particular device, <linux/printk.h> defines pr_debug() and pr_info().
Coming up with good debugging messages can be quite a challenge; and once
you have them, they can be a huge help for remote troubleshooting. Such
Kernel CodingStyle, by greg@kroah.com at OLS 2002:
http://www.kroah.com/linux/talks/ols_2002_kernel_codingstyle_talk/html/
---
-Last updated on 2007-July-13.
-