Re: [PATCH 1/2] virtio-scsi: fix parsing of hotplug/hot-unplug LUNnumber

From: Paolo Bonzini
Date: Thu Jul 26 2012 - 05:04:51 EST


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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/