linux-kernel - [PATCH 4.2 106/120] ARM: BCM63xx: fix parameter to of_get_cpu_node in bcm63138_smp_boot

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Date:	Sat, 19 Sep 2015 10:29:06 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Florian Fainelli <f.fainelli@...il.com>,
	bcm-kernel-feedback-list@...adcom.com,
	Sudeep Holla <sudeep.holla@....com>
Subject: [PATCH 4.2 106/120] ARM: BCM63xx: fix parameter to of_get_cpu_node in bcm63138_smp_boot_secondary

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

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

From: Sudeep Holla <sudeep.holla@....com>

commit a6b4b25bd15c0a490769422a7eee355e9e91a57b upstream.

of_get_cpu_node provides the device node associated with the given
logical CPU and cpu_logical_map contains the physical id for each CPU
in the logical ordering. Passing cpu_logical_map(cpu) to of_get_cpu_node
is incorrect.

This patch fixes the issue by passing the logical CPU number to
of_get_cpu_node

Fixes: ed5cd8163da8 ("ARM: BCM63xx: Add SMP support for BCM63138")
Cc: Florian Fainelli <f.fainelli@...il.com>
Cc: bcm-kernel-feedback-list@...adcom.com
Signed-off-by: Sudeep Holla <sudeep.holla@....com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-bcm/bcm63xx_smp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/mach-bcm/bcm63xx_smp.c
+++ b/arch/arm/mach-bcm/bcm63xx_smp.c
@@ -127,7 +127,7 @@ static int bcm63138_smp_boot_secondary(u
 	}
 
 	/* Locate the secondary CPU node */
-	dn = of_get_cpu_node(cpu_logical_map(cpu), NULL);
+	dn = of_get_cpu_node(cpu, NULL);
 	if (!dn) {
 		pr_err("SMP: failed to locate secondary CPU%d node\n", cpu);
 		ret = -ENODEV;


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