linux-kernel - [PATCH 0/5] loglevel=pci:8,acpi:8 support v4

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Date:	Tue, 16 Sep 2008 18:14:08 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Yinghai Lu <yhlu.kernel@...il.com>
Subject: [PATCH 0/5] loglevel=pci:8,acpi:8 support v4

v4: fix some checkpatch error and warning

usage:
	in .h to have
		#define KERN_PCI "<pci>"
	in .c to have
		DEFINE_LOGLEVEL_SETUP(pci, KERN_PCI, "pci:");
	then could use
		printk(KERN_DEBUG KERN_PCI fmt, ...);
	and command line
		loglevel=3,pci:8

you can add different printk to different files of one subsys if you like
not just one susbsys one tag, and don't need to update kernel.h to add more tags

YH
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