Messages in this thread | | | Date | Wed, 05 Aug 2015 14:33:37 -0400 | From | Peter Hurley <> | Subject | Re: [PATCH 2/7] tty: core: Add tty_debug() for printk(KERN_DEBUG) messages |
| |
On 07/23/2015 09:35 PM, Greg Kroah-Hartman wrote: > On Sun, Jul 12, 2015 at 10:49:08PM -0400, Peter Hurley wrote: >> Introduce tty_debug() macro to output uniform debug information for >> tty core debug messages (function name and tty name). >> >> Note: printk(KERN_DEBUG) is retained here over pr_debug() since >> messages can be enabled in non-DEBUG builds. > > But pr_debug() is the "standard" way to enable/disable debugging > messages, so I'd really like to see that be used here.
Ok, I can do that; I'll roll Joe's suggestions in at that time.
> Even better, this is a tty device, so it should be using dev_dbg(), > which gives us tons of good information built-in for the tty and can > properly be parsed by userspace tools to know exactly what device caused > what message at what point in time. > > So I'll take this for now, but moving it to use dev_dbg() would be best > eventually.
The issue with using dev_dbg is that (SysV) ptys are not devices. However, if you'd prefer, I could rework this macro to format output like dev_dbg; ie., <driver> <tty name>: <fmt>
Regards, Peter Hurley
| |