From: Greg KH <gregkh@linuxfoundation.org>
To: Roman Kiryanov <rkir@google.com>
Cc: linux-kernel@vger.kernel.org, Todd Kjos <tkjos@google.com>
Subject: Re: [PATCH 01/15] platform: goldfish: pipe: Remove the goldfish_interrupt_tasklet global variable
Date: Tue, 2 Oct 2018 15:42:21 -0700 [thread overview]
Message-ID: <20181002224221.GC25355@kroah.com> (raw)
In-Reply-To: <CAOGAQer-MSSsUocmjing7FhJb1SEV0T5v9StYr=DDPdTJeU0cw@mail.gmail.com>
On Tue, Oct 02, 2018 at 03:33:11PM -0700, Roman Kiryanov wrote:
> > I don't see a "global" variable here, what are you referring to.
> >
> > This one:
> >
> > > -static DECLARE_TASKLET(goldfish_interrupt_tasklet, goldfish_interrupt_task, 0);
> >
> > ?
>
> Yes.
>
> > That looks static to this file to me.
> > what am I missing here?
>
> It has a global lifetime but it is visible only in this file. How do I
> say better, just drop the word "global"?
Yes. It's not a global variable at all. It's file-scope only.
What you are doing is moving the variable to be attached to the device
itself, allowing you to have multiple devices handled by the same code,
which is great. But please document it as such.
Same goes for the other patches in this series.
thanks,
greg k-h
prev parent reply other threads:[~2018-10-02 22:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-02 22:18 [PATCH 01/15] platform: goldfish: pipe: Remove the goldfish_interrupt_tasklet global variable rkir
2018-10-02 22:18 ` [PATCH 02/15] platform: goldfish: pipe: Remove the goldfish_pipe_miscdev " rkir
2018-10-02 22:18 ` [PATCH 03/15] platform: goldfish: pipe: Remove the goldfish_pipe_dev " rkir
2018-10-02 22:18 ` [PATCH 04/15] platform: goldfish: pipe: Call misc_deregister if init fails rkir
2018-10-02 22:18 ` [PATCH 05/15] platform: goldfish: pipe: Remove redundant casting rkir
2018-10-02 22:18 ` [PATCH 06/15] platform: goldfish: pipe: Move memory allocation from probe to init rkir
2018-10-02 22:18 ` [PATCH 07/15] platform: goldfish: pipe: Return status from "deinit" since "remove" does not do much rkir
2018-10-02 22:18 ` [PATCH 08/15] platform: goldfish: pipe: Add a blank line to separate varibles and code rkir
2018-10-02 22:18 ` [PATCH 09/15] platform: goldfish: pipe: Move goldfish_pipe to goldfish_pipe_v2 rkir
2018-10-02 22:18 ` [PATCH 10/15] platform: goldfish: pipe: Remove the license boilerplate rkir
2018-10-02 22:18 ` [PATCH 11/15] platform: goldfish: pipe: Split the driver to v2 specific and the rest rkir
2018-10-02 22:19 ` [PATCH 12/15] platform: goldfish: pipe: Rename the init function (add "v2") rkir
2018-10-02 22:19 ` [PATCH 13/15] platform: goldfish: pipe: Add a dedicated constant for the device name rkir
2018-10-02 22:19 ` [PATCH 14/15] platform: goldfish: pipe: Rename PIPE_REG to PIPE_V2_REG rkir
2018-10-02 22:19 ` [PATCH 15/15] platform: goldfish: pipe: Add the goldfish_pipe_v1 driver rkir
2018-10-02 22:30 ` [PATCH 01/15] platform: goldfish: pipe: Remove the goldfish_interrupt_tasklet global variable Greg KH
2018-10-02 22:33 ` Roman Kiryanov
2018-10-02 22:42 ` Greg KH [this message]
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