From: Joe Perches <joe@perches.com>
To: Jim Cromie <jim.cromie@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>, linux-i2c@vger.kernel.org
Subject: Re: dynamic-debug not built into scx200_acb, scx200_i2c
Date: Wed, 10 Aug 2011 16:50:16 -0700 [thread overview]
Message-ID: <1313020216.11924.129.camel@Joe-Laptop> (raw)
In-Reply-To: <CAJfuBxwq3xw3MZU01rwzg0NAnnxNoLrC2x0QXnj+2pD-6gkR4g@mail.gmail.com>
On Wed, 2011-08-10 at 15:06 -0600, Jim Cromie wrote:
> scx200_acb has several pr_debugs, but theyre not available via dynamic-debug
>
> Ive been unable to figure out why.
> Any ideas ?
-DDEBUG forces pr_debug to be output and doesn't
allow dynamic_debug for those outputs.
from drivers/i2c/busses/Makefile:
ccflags-$(CONFIG_I2C_DEBUG_BUS) := -DDEBUG
from printk.h:
/* If you are writing a driver, please use dev_dbg instead */
#if defined(DEBUG)
#define pr_debug(fmt, ...) \
printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#elif defined(CONFIG_DYNAMIC_DEBUG)
/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
#define pr_debug(fmt, ...) \
dynamic_pr_debug(fmt, ##__VA_ARGS__)
next prev parent reply other threads:[~2011-08-10 23:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-10 21:06 dynamic-debug not built into scx200_acb, scx200_i2c Jim Cromie
2011-08-10 23:50 ` Joe Perches [this message]
2011-08-11 0:01 ` RFC: Use dynamic-debug with pr_debug when -DDEBUG is set Joe Perches
2011-08-11 0:20 ` Jason Baron
2011-08-11 1:03 ` Joe Perches
2011-08-11 5:44 ` Jim Cromie
2011-08-11 6:06 ` Joe Perches
2011-08-10 23:52 ` dynamic-debug not built into scx200_acb, scx200_i2c Jason Baron
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