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[SCSI] libiscsi: use get_unaligned

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Dave Miller meantioned that the data buffer in a past
sense fixup patch was not gauranteed to be aligned
properly for ia64. This patch has libiscsi use get_unalinged
to make sure. There are a couple more places in the
digest handling we may need to do this, but we are in the middle
of fixing that code for big endien systems so just the sense
access is fixed here.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Mike Christie 2007-02-28 17:32:19 -06:00 committed by James Bottomley
parent 41be144422
commit 8eb00539d9
1 changed files with 3 additions and 2 deletions
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5
drivers/scsi/libiscsi.c
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@ -25,6 +25,7 @@
#include <linux/mutex.h>
#include <linux/kfifo.h>
#include <linux/delay.h>
#include <asm/unaligned.h>
#include <net/tcp.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
@ -269,14 +270,14 @@ invalid_datalen:
goto out;
}
senselen = be16_to_cpu(*(__be16 *)data);
senselen = be16_to_cpu(get_unaligned((__be16 *) data));
if (datalen < senselen)
goto invalid_datalen;
memcpy(sc->sense_buffer, data + 2,
min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
debug_scsi("copied %d bytes of sense\n",
min(senselen, SCSI_SENSE_BUFFERSIZE));
min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
}
if (sc->sc_data_direction == DMA_TO_DEVICE)