From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 21 Oct 2016 21:21:56 +0000 (-0700)
Subject: net: dsa: bcm_sf2: Do not rely on kexec_in_progress
X-Git-Tag: v4.14-rc1~2159^2~50^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4a2947e32ea9ca2bc36d68022b7d7b1014dca18f;p=platform%2Fkernel%2Flinux-rpi.git

net: dsa: bcm_sf2: Do not rely on kexec_in_progress

After discussing with Eric, it turns out that, while using
kexec_in_progress is a nice optimization, which prevents us from always
powering on the integrated PHY, let's just turn it on in the shutdown
path.

This removes a dependency on kexec_in_progress which, according to Eric
should not be used by modules

Fixes: 2399d6143f85 ("net: dsa: bcm_sf2: Prevent GPHY shutdown for kexec'd kernels")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 077a245..e3ee27c 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -30,7 +30,6 @@
 #include <linux/etherdevice.h>
 #include <net/switchdev.h>
 #include <linux/platform_data/b53.h>
-#include <linux/kexec.h>
 
 #include "bcm_sf2.h"
 #include "bcm_sf2_regs.h"
@@ -1141,9 +1140,11 @@ static void bcm_sf2_sw_shutdown(struct platform_device *pdev)
 	/* For a kernel about to be kexec'd we want to keep the GPHY on for a
 	 * successful MDIO bus scan to occur. If we did turn off the GPHY
 	 * before (e.g: port_disable), this will also power it back on.
+	 *
+	 * Do not rely on kexec_in_progress, just power the PHY on.
 	 */
 	if (priv->hw_params.num_gphy == 1)
-		bcm_sf2_gphy_enable_set(priv->dev->ds, kexec_in_progress);
+		bcm_sf2_gphy_enable_set(priv->dev->ds, true);
 }
 
 #ifdef CONFIG_PM_SLEEP