linux-kernel - Re: [PATCH 1/2] virtio-scsi: fix parsing of hotplug/hot-unplug LUN number

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Message-ID: <50110820.4040403@redhat.com>
Date:	Thu, 26 Jul 2012 11:04:32 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH 1/2] virtio-scsi: fix parsing of hotplug/hot-unplug LUN
 number

Il 26/07/2012 10:52, James Bottomley ha scritto:
>> > +static unsigned int virtscsi_get_lun(u8 *lun_bytes)
>> > +{
>> > +	unsigned int lun = (lun_bytes[2] << 8) | lun_bytes[3];
>> > +	return lun & 16383;
>> > +}
>> > +
> Why are you rolling your own incomplete version of scsilun_to_int here?

Because scsilun_to_int does not do the AND, so it would have exactly the
same bug I'm fixing.

Paolo
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