Re: [PATCH 0/3] dyndbg: dev_dbg bugfix + 2 trivials

From: Jason Baron
Date: Fri Jul 20 2012 - 16:39:07 EST

On Thu, Jul 19, 2012 at 01:46:19PM -0600, Jim Cromie wrote:
> 3 patches here, 1st is bugfix, others are trivial.
> 1- fix __dev_printk, which broke dev_dbg() prefix under CONFIG_DYNAMIC_DEBUG.

Patch looks good, and would be really nice to get into 3.5. Kay, are you
ok with this patch?

> 2- change dyndbg prefix interfield separator from ':' to '.'
> for example (output from test-code, not submitted):
> r8169 0000:02:00.0: r8169.rtl_init_one: set-drvdata pdev:ffff880223041000 dev:ffff880220d6a000
> hwmon hwmon1: k10temp.k10temp_probe.180: set-drvdata pdev:ffff88022303d000 dev:ffff8801dfd2a000
> This improves usability of cut -d: <logfile> for pr_debug() messages,
> as field position is less volatile with various uses of dyndbg flags.
> Its not perfect:
> - dev_dbg on net-devices adds several more colons,
> but this doesnt vary with dyndbg flags.
> - dyndbg=+pfmlt still adds a field vs dyndbg==p (ie no prefix)
> - pr_fmt() commonly adds another colon (unchanged with this patch)

As you suggest in the patch, changing the delimiter to a non-colon
character such as ',' would resolve these cases?

> 3- trivial var name change in lib/dynamic_debug.c
> Please drop or apply 2,3 as you prefer.

2,3 are nice, but as you suggest I think we want to separate them from
patch 1, which is a bugfix for 3.5.


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