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[SCSI] qla2xxx: Don't explicitly read mbx registers while processing a system-error. 

Callers of qla2x00_async_event() already populate the mb[] array
upon invocation, doing so via the appropriate mailbox register
accessors.  The stale codes removed are leftover-bits kept during
the FWI2 transition.  Though relatively benign, the extra-reads
are not valid for FWI2 boards (ISP24xx and above) and peek into
the incorrect regions of registers.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Andrew Vasquez 2007-11-12 10:30:57 -08:00 committed by James Bottomley
parent 860784c8a2
commit 06e23b7470
1 changed files with 0 additions and 4 deletions
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4
drivers/scsi/qla2xxx/qla_isr.c
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@ -347,10 +347,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
break;
case MBA_SYSTEM_ERR: /* System Error */
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
qla_printk(KERN_INFO, ha,
"ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
mb[1], mb[2], mb[3]);