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Sun, 12 Apr 2020 22:02:48 -0700 (PDT) Received: from lenovo ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id x3sm7147299pfq.95.2020.04.12.22.02.44 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 12 Apr 2020 22:02:47 -0700 (PDT) Date: Mon, 13 Apr 2020 13:02:42 +0800 From: Orson Zhai To: Greg Kroah-Hartman Cc: Jonathan Corbet , Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Jason Baron , Andrew Morton , Randy Dunlap , orsonzhai@gmail.com, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kernel-team@android.com, Orson Zhai Subject: Re: [PATCH] dynamic_debug: Add an option to enable dynamic debug for modules only Message-ID: <20200413050241.GA5694@lenovo> Mail-Followup-To: Greg Kroah-Hartman , Jonathan Corbet , Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Jason Baron , Andrew Morton , Randy Dunlap , orsonzhai@gmail.com, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kernel-team@android.com, Orson Zhai References: <1586521984-5890-1-git-send-email-orson.unisoc@gmail.com> <20200410124414.GB2091460@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200410124414.GB2091460@kroah.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 10, 2020 at 02:44:14PM +0200, Greg Kroah-Hartman wrote: > On Fri, Apr 10, 2020 at 08:33:04PM +0800, Orson Zhai wrote: > > From: Orson Zhai > > > > Instead of enabling dynamic debug globally with CONFIG_DYNAMIC_DEBUG, > > CONFIG_DYNAMIC_DEBUG_CORE will only enable core function of dynamic > > debug. With the DEBUG_MODULE defined for any modules, dynamic debug > > will be tied to them. > > > > This is useful for people who only want to enable dynamic debug for > > kernel modules without worrying about kernel image size and memory > > consumption is increasing too much. > > > > Signed-off-by: Orson Zhai > > --- > > Documentation/admin-guide/dynamic-debug-howto.rst | 7 +++++-- > > include/linux/dev_printk.h | 6 ++++-- > > include/linux/dynamic_debug.h | 2 +- > > include/linux/printk.h | 14 +++++++++----- > > lib/Kconfig.debug | 12 ++++++++++++ > > lib/Makefile | 2 +- > > lib/dynamic_debug.c | 9 +++++++-- > > 7 files changed, 39 insertions(+), 13 deletions(-) > > Crazy idea, I like it :) Jason was highly appreciated for his suggestion to my RFC patch before this. > > Acked-by: Greg Kroah-Hartman Thank you very much. Best, Orson