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Diffstat (limited to 'Documentation/process/coding-style.rst')
| -rw-r--r-- | Documentation/process/coding-style.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/process/coding-style.rst b/Documentation/process/coding-style.rst index c48382c6b477..f8ec23fa89bc 100644 --- a/Documentation/process/coding-style.rst +++ b/Documentation/process/coding-style.rst @@ -899,7 +899,8 @@ 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/printk.h> defines pr_notice(), pr_info(), -pr_warn(), pr_err(), etc. +pr_warn(), pr_err(), etc. When drivers are working properly they are quiet, +so prefer to use dev_dbg/pr_debug unless something is wrong. 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. However |