linux-kernel - [PATCH 4.18 142/168] xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN

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Date:   Mon,  8 Oct 2018 20:32:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Joshua Abraham <j.abraham1776@...il.com>,
        Juergen Gross <jgross@...e.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.18 142/168] xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Josh Abraham <j.abraham1776@...il.com>

[ Upstream commit 4dca864b59dd150a221730775e2f21f49779c135 ]

This patch removes duplicate macro useage in events_base.c.

It also fixes gcc warning:
variable ‘col’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Joshua Abraham <j.abraham1776@...il.com>
Reviewed-by: Juergen Gross <jgross@...e.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/xen/events/events_base.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -138,7 +138,7 @@ static int set_evtchn_to_irq(unsigned ev
 		clear_evtchn_to_irq_row(row);
 	}
 
-	evtchn_to_irq[EVTCHN_ROW(evtchn)][EVTCHN_COL(evtchn)] = irq;
+	evtchn_to_irq[row][col] = irq;
 	return 0;
 }