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From: Matthias Maennich <maennich@google.com>
To: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"Cc: Android Kernel" <kernel-team@android.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jessica Yu <jeyu@kernel.org>,
	"Joel Fernandes (Google)" <joel@joelfernandes.org>,
	Lucas De Marchi <lucas.de.marchi@gmail.com>,
	maco@android.com, sspatil@google.com,
	Will Deacon <will@kernel.org>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	linux-modules@vger.kernel.org,
	linux-usb <linux-usb@vger.kernel.org>,
	usb-storage@lists.one-eyed-alien.net,
	linux-watchdog@vger.kernel.org,
	Julia Lawall <julia.lawall@lip6.fr>
Subject: Re: [PATCH v4 08/12] scripts: Coccinelle script for namespace dependencies.
Date: Thu, 5 Sep 2019 15:46:55 +0100
Message-ID: <20190905144655.GB136369@google.com> (raw)
In-Reply-To: <CAK7LNARgxoXAABNXhO-LzxAm8rh6NJqAm9-iMo2=t2c_6_KXtQ@mail.gmail.com>

On Wed, Sep 04, 2019 at 06:53:25PM +0900, Masahiro Yamada wrote:
>On Wed, Sep 4, 2019 at 12:07 AM Matthias Maennich <maennich@google.com> wrote:
>>
>> A script that uses the '<module>.ns_deps' files generated by modpost to
>> automatically add the required symbol namespace dependencies to each
>> module.
>>
>> Usage:
>> 1) Move some symbols to a namespace with EXPORT_SYMBOL_NS() or define
>>    DEFAULT_SYMBOL_NAMESPACE
>> 2) Run 'make' (or 'make modules') and get warnings about modules not
>>    importing that namespace.
>> 3) Run 'make nsdeps' to automatically add required import statements
>>    to said modules.
>>
>> This makes it easer for subsystem maintainers to introduce and maintain
>> symbol namespaces into their codebase.
>>
>> Co-developed-by: Martijn Coenen <maco@android.com>
>> Signed-off-by: Martijn Coenen <maco@android.com>
>> Acked-by: Julia Lawall <julia.lawall@lip6.fr>
>> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>> Signed-off-by: Matthias Maennich <maennich@google.com>
>
>
>Without any correct dependency,
>this does not work.

You are right, 'nsdeps' needs to depend on 'modules' to make that work.
I will fix that in the next version.

>$ make clean; make nsdeps
>cat: modules.order: No such file or directory
>cat: ./modules.order: No such file or directory
>
>
>I do not see any point in the Makefile changes.

  reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20180716122125.175792-1-maco@android.com>
2019-09-03 15:06 ` [PATCH v4 00/12] Symbol Namespaces Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 01/12] module: support reading multiple values per modinfo tag Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 02/12] export: explicitly align struct kernel_symbol Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 03/12] module: add support for symbol namespaces Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 04/12] modpost: " Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 05/12] module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 06/12] export: allow definition default namespaces in Makefiles or sources Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 07/12] modpost: add support for generating namespace dependencies Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 08/12] scripts: Coccinelle script for " Matthias Maennich
2019-09-04  9:53     ` Masahiro Yamada
2019-09-05 14:46       ` Matthias Maennich [this message]
2019-09-03 15:06   ` [PATCH v4 09/12] docs: Add documentation for Symbol Namespaces Matthias Maennich
2019-09-04  7:16     ` Greg KH
2019-09-03 15:06   ` [PATCH v4 10/12] usb-storage: remove single-use define for debugging Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 11/12] RFC: usb-storage: export symbols in USB_STORAGE namespace Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 12/12] RFC: watchdog: export core symbols in WATCHDOG_CORE namespace Matthias Maennich
2019-09-03 16:10     ` Guenter Roeck
2019-09-04  8:45       ` Masahiro Yamada
2019-09-04 12:12         ` Guenter Roeck
2019-09-04 16:16           ` [usb-storage] " Matthew Dharm
2019-09-05 10:41             ` Jessica Yu
2019-09-05 10:52               ` Arnd Bergmann
2019-09-05 11:16                 ` Jessica Yu
2019-09-05 11:25                   ` Masahiro Yamada
2019-09-05 12:00                     ` Greg Kroah-Hartman
2019-09-05 11:25               ` Matthias Maennich
2019-09-04  9:37   ` [PATCH v4 00/12] Symbol Namespaces Masahiro Yamada

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