Re: rfc: rewrite commit subject line for subsystem maintainer preference tool

[Joe Perches <joe@perches.com>]

On Tue, 2010-11-16 at 12:21 -0800, Randy Dunlap wrote:
> On Tue, 16 Nov 2010 19:55:31 +0000 Mark Brown wrote:
> I don't know what you asked Joe to change, but asking someone to use
> the documented canonical patch format:
> <quote>
> The canonical patch subject line is:
>     Subject: [PATCH 001/123] subsystem: summary phrase
> </quote>
> should be fine.  And there is no need for printf-ish templates
> for this in MAINTAINERS either.

I've never read that before.  Learn something new etc...
It seems path prefixes aren't good nor even commonly used.

A review of kernel patch subjects:

$ git log --no-merges --pretty=oneline | \
	cut -f2- -d" " | cut -f1 -d: | sort | uniq -c | sort -rn

is interesting.  Here's the head:
   5007 x86
   3943 Staging
   3220 USB
   2790 sh
   2707 KVM
   2624 ARM
   2449 ALSA
   1571 Input
   1549 ASoC
   1470 iwlwifi
   1423 ACPI
   1397 mac80211
   1384 V4L/DVB
   1226 sched
   1200 Btrfs
   1184 powerpc
   1106 [NETFILTER]
   1080 MIPS
   1049 net
   1047 ide
   1014 drm/i915
    993 staging
    921 ath9k

Some subsystem maintainers like upper case, some mixed, some lower.
Some aren't consistent.  (Staging/staging)

It doesn't seem a rule can be pregenerated so maybe adding these
"C:" lines to MAINTAINERS has some value.