Merge tag 'arc-7.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:

 - Misc fixes and config updates

* tag 'arc-7.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: configs: Drop redundant I2C_DESIGNWARE_PLATFORM
  arc: validate DT CPU map strings before parsing them

Author: torvalds

arch/arc/configs/axs101_defconfig

@@ -67,7 +67,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_DESIGNWARE_CORE=y
-CONFIG_I2C_DESIGNWARE_PLATFORM=y
 # CONFIG_HWMON is not set
 CONFIG_DRM=m
 CONFIG_DRM_I2C_ADV7511=m

arch/arc/configs/axs103_defconfig

@@ -67,7 +67,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_DESIGNWARE_CORE=y
-CONFIG_I2C_DESIGNWARE_PLATFORM=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y

arch/arc/configs/axs103_smp_defconfig

@@ -67,7 +67,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_DESIGNWARE_CORE=y
-CONFIG_I2C_DESIGNWARE_PLATFORM=y
 # CONFIG_HWMON is not set
 CONFIG_DRM=m
 CONFIG_DRM_I2C_ADV7511=m

arch/arc/configs/tb10x_defconfig

@@ -61,7 +61,6 @@ CONFIG_SERIAL_8250_DW=y
 CONFIG_I2C=y
 # CONFIG_I2C_COMPAT is not set
 CONFIG_I2C_DESIGNWARE_CORE=y
-CONFIG_I2C_DESIGNWARE_PLATFORM=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
 # CONFIG_USB_SUPPORT is not set

arch/arc/kernel/smp.c

@@ -22,6 +22,7 @@
 #include <linux/irqdomain.h>
 #include <linux/export.h>
 #include <linux/of_fdt.h>
+#include <linux/string.h>
 
 #include <asm/mach_desc.h>
 #include <asm/setup.h>
@@ -43,9 +44,10 @@ static int __init arc_get_cpu_map(const char *name, struct cpumask *cpumask)
 {
 	unsigned long dt_root = of_get_flat_dt_root();
 	const char *buf;
+	int len;
 
-	buf = of_get_flat_dt_prop(dt_root, name, NULL);
-	if (!buf)
+	buf = of_get_flat_dt_prop(dt_root, name, &len);
+	if (!buf || !memchr(buf, '\0', len))
 		return -EINVAL;
 
 	if (cpulist_parse(buf, cpumask))