linux-kernel - Re: [PATCH] UBI: rename free variable

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Message-ID: <56175EB1.6000401@denx.de>
Date:	Fri, 9 Oct 2015 08:29:05 +0200
From:	Heiko Schocher <hs@...x.de>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	linux-kernel@...r.kernel.org,
	Brian Norris <computersforpeace@...il.com>,
	Richard Weinberger <richard@....at>,
	linux-mtd@...ts.infradead.org,
	David Woodhouse <dwmw2@...radead.org>,
	Artem Bityutskiy <dedekind1@...il.com>
Subject: Re: [PATCH] UBI: rename free variable

Hello Al,

Am 09.10.2015 um 07:39 schrieb Al Viro:
> On Fri, Oct 09, 2015 at 06:39:52AM +0200, Heiko Schocher wrote:
>> Hello Al,
>> Sorry, I should have added this info immediately into the patch ...
>>
>> We have in U-Boot a compat.h file, in which we collect all things
>> we need to make linux code running under U-Boot, and there we map
>> kfree() to free(), see:
>>
>> http://git.denx.de/?p=u-boot.git;a=blob;f=include/linux/compat.h;h=fbebf910addd994d265d21c4fbaa0a2f48f4ccb1;hb=996ec1dcc58a34b53891acde0ec5df9141b5fcc2#l58
>>
>> So, if we use a var name "free", this will conflict ... and I get
>> for example when compiling the UBI code:
>>
>>    CC      drivers/mtd/ubi/fastmap.o
>> drivers/mtd/ubi/fastmap.c: In function 'scan_pool':
>> drivers/mtd/ubi/fastmap.c:475:3: error: called object 'free' is not a function
>>
>> So with this patch, we have less differences to kernel files ...
>
> Umm... wouldn't it be easier to replace that mix of #define and static inline
> with uniform use of static inline, rather than playing whack-a-mole like
> that?

Yes, fully correct, thanks for helping.

bye,
Heiko
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