netdev - [PATCH] iw_cxgb4: fix for 64-bit integer division

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Message-Id: <1405616463-23156-1-git-send-email-hariprasad@chelsio.com>
Date:	Thu, 17 Jul 2014 22:31:03 +0530
From:	Hariprasad Shenai <hariprasad@...lsio.com>
To:	netdev@...r.kernel.org, linux-rdma@...r.kernel.org
Cc:	davem@...emloft.net, roland@...estorage.com,
	swise@...ngridcomputing.com, leedom@...lsio.com,
	nirranjan@...lsio.com, kumaras@...lsio.com, anish@...lsio.com,
	Hariprasad Shenai <hariprasad@...lsio.com>
Subject: [PATCH] iw_cxgb4: fix for 64-bit integer division

Fixed error introduced in commit id 7730b4c (" cxgb4/iw_cxgb4: work request
logging feature") while compiling on 32 bit architecture reported by kbuild.

Signed-off-by: Hariprasad Shenai <hariprasad@...lsio.com>
---
 drivers/infiniband/hw/cxgb4/device.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index df1f1b5..bb0de61 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -33,6 +33,7 @@
 #include <linux/moduleparam.h>
 #include <linux/debugfs.h>
 #include <linux/vmalloc.h>
+#include <linux/math64.h>
 
 #include <rdma/ib_verbs.h>
 
@@ -150,7 +151,7 @@ static int wr_log_show(struct seq_file *seq, void *v)
 	int prev_ts_set = 0;
 	int idx, end;
 
-#define ts2ns(ts) ((ts) * dev->rdev.lldi.cclk_ps / 1000)
+#define ts2ns(ts) div64_ul((ts) * dev->rdev.lldi.cclk_ps , 1000)
 
 	idx = atomic_read(&dev->rdev.wr_log_idx) &
 		(dev->rdev.wr_log_size - 1);
-- 
1.7.1

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