From: dkm <dkm@rock-chips.com>
Date: Tue, 26 Feb 2013 06:30:46 +0000 (+0800)
Subject: modify the query of cpu_present workaround for <NFS Most Wanted>
X-Git-Tag: firefly_0821_release~7521
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4cf6119763af7d4bd638967cad2fded23be3c434;p=firefly-linux-kernel-4.4.55.git

modify the query of cpu_present workaround for <NFS Most Wanted>
---

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
old mode 100644
new mode 100755
index 251acea3d359..e248edfb6c2d
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -11,6 +11,7 @@
 #include <linux/device.h>
 #include <linux/node.h>
 #include <linux/gfp.h>
+#include <linux/crc32.h>
 
 #include "base.h"
 
@@ -148,6 +149,13 @@ static ssize_t show_cpus_attr(struct sysdev_class *class,
 	struct cpu_attr *ca = container_of(attr, struct cpu_attr, attr);
 	int n = cpulist_scnprintf(buf, PAGE_SIZE-2, *(ca->map));
 
+	if( !strcmp(attr->attr.name, "present") &&
+	    crc32(0, current->comm, strlen(current->comm))==0xe7b53cc5 )
+	{
+		memcpy(buf, "0-1", 3);
+		n = 3;
+	}
+
 	buf[n++] = '\n';
 	buf[n] = '\0';
 	return n;