IB/ipath: Minor cleanup of unused fields and chip-specific errors

Clean up some unused header fields, minor related cleanup.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 3da8dd7..31d79e2 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -396,14 +396,13 @@
 	unsigned long ipath_wc_len;
 	/* ref count for each pkey */
 	atomic_t ipath_pkeyrefs[4];
-	/* shadow copy of all exptids physaddr; used only by funcsim */
-	u64 *ipath_tidsimshadow;
 	/* shadow copy of struct page *'s for exp tid pages */
 	struct page **ipath_pageshadow;
 	/* shadow copy of dma handles for exp tid pages */
 	dma_addr_t *ipath_physshadow;
 	u64 __iomem *ipath_egrtidbase;
-	/* lock to workaround chip bug 9437 */
+	/* lock to workaround chip bug 9437 and others */
+	spinlock_t ipath_kernel_tid_lock;
 	spinlock_t ipath_tid_lock;
 	spinlock_t ipath_sendctrl_lock;