Patch "net: gianfar_ptp: move set_fipers() to spinlock protecting area" has been added to the 3.18-stable tree

Patch "net: gianfar_ptp: move set_fipers() to spinlock protecting area" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net: gianfar_ptp: move set_fipers() to spinlock protecting area

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-gianfar_ptp-move-set_fipers-to-spinlock-protecting-area.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Wed Feb 28 16:16:23 CET 2018
From: Yangbo Lu <yangbo.lu@nxp.com>
Date: Tue, 9 Jan 2018 11:02:33 +0800
Subject: net: gianfar_ptp: move set_fipers() to spinlock protecting area

From: Yangbo Lu <yangbo.lu@nxp.com>


[ Upstream commit 11d827a993a969c3c6ec56758ff63a44ba19b466 ]

set_fipers() calling should be protected by spinlock in
case that any interrupt breaks related registers setting
and the function we expect. This patch is to move set_fipers()
to spinlock protecting area in ptp_gianfar_adjtime().

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/freescale/gianfar_ptp.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/net/ethernet/freescale/gianfar_ptp.c
+++ b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -314,11 +314,10 @@ static int ptp_gianfar_adjtime(struct pt
 	now = tmr_cnt_read(etsects);
 	now += delta;
 	tmr_cnt_write(etsects, now);
+	set_fipers(etsects);
 
 	spin_unlock_irqrestore(&etsects->lock, flags);
 
-	set_fipers(etsects);
-
 	return 0;
 }
 


Patches currently in stable-queue which might be from yangbo.lu@nxp.com are

queue-3.18/net-gianfar_ptp-move-set_fipers-to-spinlock-protecting-area.patch