[PATCH] IB/ipath: removed redundant statements

The tail register read became redundant as the result of earlier receive
interrupt bug fixes.

Drop another unneeded register read.

And another line that got duplicated.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Cc: "Michael S. Tsirkin" <mst@mellanox.co.il>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/infiniband/hw/ipath/ipath_driver.c

@@ -890,9 +890,6 @@ void ipath_kreceive(struct ipath_devdata *dd)
 		goto done;
 
 reloop:
-	/* read only once at start for performance */
-	hdrqtail = (u32)le64_to_cpu(*dd->ipath_hdrqtailptr);
-
 	for (i = 0; l != hdrqtail; i++) {
 		u32 qp;
 		u8 *bthbytes;

drivers/infiniband/hw/ipath/ipath_ht400.c

@@ -1573,7 +1573,6 @@ void ipath_init_ht400_funcs(struct ipath_devdata *dd)
 	dd->ipath_f_reset = ipath_setup_ht_reset;
 	dd->ipath_f_get_boardname = ipath_ht_boardname;
 	dd->ipath_f_init_hwerrors = ipath_ht_init_hwerrors;
-	dd->ipath_f_init_hwerrors = ipath_ht_init_hwerrors;
 	dd->ipath_f_early_init = ipath_ht_early_init;
 	dd->ipath_f_handle_hwerrors = ipath_ht_handle_hwerrors;
 	dd->ipath_f_quiet_serdes = ipath_ht_quiet_serdes;

drivers/infiniband/hw/ipath/ipath_intr.c

@@ -824,7 +824,6 @@ irqreturn_t ipath_intr(int irq, void *data, struct pt_regs *regs)
 			ipath_stats.sps_fastrcvint++;
 			goto done;
 		}
-		istat = ipath_read_kreg32(dd, dd->ipath_kregs->kr_intstatus);
 	}
 
 	istat = ipath_read_kreg32(dd, dd->ipath_kregs->kr_intstatus);