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Re: [Qemu-devel] [PATCH 2/2] xen: Don't peek behind the BlockDriverState

From: Markus Armbruster
Subject: Re: [Qemu-devel] [PATCH 2/2] xen: Don't peek behind the BlockDriverState abstraction
Date: Wed, 06 Jun 2012 14:55:48 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux)

Peter Maydell <address@hidden> writes:

> On 5 June 2012 13:51, Markus Armbruster <address@hidden> wrote:
>> @@ -554,6 +553,7 @@ static int blk_init(struct XenDevice *xendev)
>>  {
>>     struct XenBlkDev *blkdev = container_of(xendev, struct XenBlkDev, 
>> xendev);
>>     int index, qflags, info = 0;
>> +    char fmt_name[128];
> Fixed length array with a hardcoded magic number size ?
> If the block layer guarantees that format names are going to be
> less than 128 bytes it ought to provide a suitable #define for
> people to set array sizes to...

Maybe it should, but it doesn't.  Does it really matter in this
particular case?  If somebody insists on giving his driver a name longer
than 127 characters, we'll silently log it truncated, that's all.

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