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From: Matthew Wilcox <willy@infradead.org>
To: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-btrfs@vger.kernel.org, linux-acpi@vger.kernel.org,
	netdev@vger.kernel.org, Joe Perches <joe@perches.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jason Baron <jbaron@akamai.com>, Jonathan Corbet <corbet@lwn.net>
Subject: Re: [PATCH v3 1/7] Documentation: dynamic-debug: Add description of level bitmask
Date: Tue, 9 Jun 2020 04:09:01 -0700	[thread overview]
Message-ID: <20200609110901.GZ19604@bombadil.infradead.org> (raw)
In-Reply-To: <20200609104604.1594-2-stanimir.varbanov@linaro.org>

On Tue, Jun 09, 2020 at 01:45:58PM +0300, Stanimir Varbanov wrote:
> +level
> +    The given level will be a bitmask ANDed with the level of the each ``pr_debug()``
> +    callsite. This will allow to group debug messages and show only those of the
> +    same level.  The -p flag takes precedence over the given level. Note that we can
> +    have up to five groups of debug messages.

That doesn't sound like a "level".  printk has levels.  If you ask for
"level 3" messages, you get messages from levels 0, 1, 2, and 3.  These
seem like "types" or "groups" or something.

> +  // enable all messages in file with 0x01 level bitmask
> +  nullarbor:~ # echo -n 'file foo.c level 0x01 +p' >
> +                                <debugfs>/dynamic_debug/control

  reply	other threads:[~2020-06-09 11:09 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-09 10:45 [PATCH v3 0/7] Venus dynamic debug Stanimir Varbanov
2020-06-09 10:45 ` [PATCH v3 1/7] Documentation: dynamic-debug: Add description of level bitmask Stanimir Varbanov
2020-06-09 11:09   ` Matthew Wilcox [this message]
2020-06-09 11:16   ` Greg Kroah-Hartman
2020-06-09 16:58     ` Joe Perches
2020-06-09 17:42       ` Edward Cree
2020-06-09 17:56         ` Joe Perches
2020-06-09 18:08           ` Edward Cree
2020-06-10  6:31       ` Greg Kroah-Hartman
2020-06-10  6:35         ` Joe Perches
2020-06-10  7:09           ` Greg Kroah-Hartman
2020-06-10  7:24             ` Joe Perches
2020-06-10 10:29     ` Stanimir Varbanov
2020-06-10 12:26       ` Greg Kroah-Hartman
2020-06-09 10:45 ` [PATCH v3 2/7] dynamic_debug: Group debug messages by " Stanimir Varbanov
2020-06-09 12:27   ` Petr Mladek
2020-06-09 10:46 ` [PATCH v3 3/7] dev_printk: Add dev_dbg_level macro over dynamic one Stanimir Varbanov
2020-06-09 10:46 ` [PATCH v3 4/7] printk: Add pr_debug_level " Stanimir Varbanov
2020-06-09 11:12   ` Greg Kroah-Hartman
2020-06-09 10:46 ` [PATCH v3 5/7] venus: Add debugfs interface to set firmware log level Stanimir Varbanov
2020-06-09 11:12   ` Greg Kroah-Hartman
2020-06-11 11:51     ` Stanimir Varbanov
2020-06-09 10:46 ` [PATCH v3 6/7] venus: Make debug infrastructure more flexible Stanimir Varbanov
2020-06-09 11:14   ` Greg Kroah-Hartman
2020-06-10 13:29     ` Stanimir Varbanov
2020-06-10 13:37       ` Greg Kroah-Hartman
2020-06-10 19:49         ` Joe Perches
2020-06-10 20:23           ` Joe Perches
2020-06-11  6:26             ` Greg Kroah-Hartman
2020-06-11  6:42               ` Joe Perches
2020-06-11 10:52                 ` Daniel Thompson
2020-06-11 11:31                   ` Stanimir Varbanov
2020-06-11 12:18                     ` Daniel Thompson
2020-06-11 21:19                       ` jim.cromie
2020-06-11 21:59                         ` Jason Baron
2020-06-11 22:33                           ` Joe Perches
2020-06-12  0:08                         ` jim.cromie
2020-06-10 18:32   ` WIP generic module->debug_flags and dynamic_debug jim.cromie
2020-06-10 20:24     ` Joe Perches
2020-06-11 11:26     ` Rasmus Villemoes
2020-06-11 14:09       ` jim.cromie
2020-06-09 10:46 ` [PATCH v3 7/7] venus: Add a debugfs file for SSR trigger Stanimir Varbanov
2020-06-09 11:13 ` [PATCH v3 0/7] Venus dynamic debug Matthew Wilcox
2020-06-09 16:03   ` Randy Dunlap
2020-06-09 16:49     ` Joe Perches
2020-06-09 21:21       ` jim.cromie
2020-06-09 22:23         ` Joe Perches
2020-06-10  1:58           ` Joe Perches
2020-06-10  3:10           ` jim.cromie
2020-06-09 16:40 ` Joe Perches

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