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Date:	Wed, 20 Aug 2014 23:17:53 +0100
From:	Mark Einon <mark.einon@...il.com>
To:	gregkh@...uxfoundation.org
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, Mark Einon <mark.einon@...il.com>
Subject: [PATCH 3/8] staging: et131x: Use for loop to initialise contiguous registers to zero

Replace a long list of contiguous writel() calls with a for loop iterating
over the same values.

Signed-off-by: Mark Einon <mark.einon@...il.com>
---
 drivers/staging/et131x/et131x.c | 27 +++------------------------
 1 file changed, 3 insertions(+), 24 deletions(-)

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index fffe763..44cc684 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -1138,6 +1138,7 @@ static void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
 	u32 sa_lo;
 	u32 sa_hi = 0;
 	u32 pf_ctrl = 0;
+	u32 *wolw;
 
 	/* Disable the MAC while it is being configured (also disable WOL) */
 	writel(0x8, &rxmac->ctrl);
@@ -1151,30 +1152,8 @@ static void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
 	 * its default Values of 0x00000000 because there are not WOL masks
 	 * as of this time.
 	 */
-	writel(0, &rxmac->mask0_word0);
-	writel(0, &rxmac->mask0_word1);
-	writel(0, &rxmac->mask0_word2);
-	writel(0, &rxmac->mask0_word3);
-
-	writel(0, &rxmac->mask1_word0);
-	writel(0, &rxmac->mask1_word1);
-	writel(0, &rxmac->mask1_word2);
-	writel(0, &rxmac->mask1_word3);
-
-	writel(0, &rxmac->mask2_word0);
-	writel(0, &rxmac->mask2_word1);
-	writel(0, &rxmac->mask2_word2);
-	writel(0, &rxmac->mask2_word3);
-
-	writel(0, &rxmac->mask3_word0);
-	writel(0, &rxmac->mask3_word1);
-	writel(0, &rxmac->mask3_word2);
-	writel(0, &rxmac->mask3_word3);
-
-	writel(0, &rxmac->mask4_word0);
-	writel(0, &rxmac->mask4_word1);
-	writel(0, &rxmac->mask4_word2);
-	writel(0, &rxmac->mask4_word3);
+	for (wolw = &rxmac->mask0_word0; wolw <= &rxmac->mask4_word3; wolw++)
+		writel(0, wolw);
 
 	/* Lets setup the WOL Source Address */
 	sa_lo = (adapter->addr[2] << ET_RX_WOL_LO_SA3_SHIFT) |
-- 
2.1.0

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