linux-kernel - Re: thunderbolt: Deletion of unnecessary checks before the function call "ring

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Date:	Sun, 23 Nov 2014 07:56:35 -0800
From:	Joe Perches <joe@...ches.com>
To:	Andreas Noever <andreas.noever@...il.com>
Cc:	SF Markus Elfring <elfring@...rs.sourceforge.net>,
	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: thunderbolt: Deletion of unnecessary checks before the function
 call "ring_free"

On Sun, 2014-11-23 at 16:45 +0100, Andreas Noever wrote:
> On Sun, Nov 23, 2014 at 4:20 PM, Joe Perches <joe@...ches.com> wrote:
> > On Sun, 2014-11-23 at 15:14 +0100, SF Markus Elfring wrote:
> >> >> 2. Are any additional prefixes appropriate so that further name space
> >> >>    conflicts can be better avoided?
> >> >
> >> > To avoid possible external naming conflicts, add tb_ prefix to
> >> > various ring_<foo> structs and functions.
> >>
> >> Do you imagine that any XEN software developers need also to reconsider
> >> this implementation detail?
> >> https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/char/tpm/xen-tpmfront.c?id=fc14f9c1272f62c3e8d01300f52467c0d9af50f9#n268
> >
> > I think static functions can be named whatever
> > the developer chooses.
> Do symbols which are not exported (no EXPORT_SYMBOL_(GPL)) cause
> conflicts?

If the symbol is not static, yes.

eg: the static uses of "debug" as a control
variable vs the non-static uses of <prefix>debug
when shared among multiple objects in a single
driver.


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