From: Bin Meng <bmeng.cn@gmail.com>
Date: Thu, 8 Aug 2019 07:52:08 +0000 (-0700)
Subject: riscv: cpu: Skip unavailable hart in the get_count() op
X-Git-Tag: v2019.10-rc4~25^2~13
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4dfea4b5cd68b86dd47d1333f1871a402087deaa;p=platform%2Fkernel%2Fu-boot.git

riscv: cpu: Skip unavailable hart in the get_count() op

We should not count in hart that is marked as not available in the
device tree in riscv_cpu_get_count().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
---

diff --git a/drivers/cpu/riscv_cpu.c b/drivers/cpu/riscv_cpu.c
index f77c126..28ad0aa 100644
--- a/drivers/cpu/riscv_cpu.c
+++ b/drivers/cpu/riscv_cpu.c
@@ -46,6 +46,10 @@ static int riscv_cpu_get_count(struct udevice *dev)
 	ofnode_for_each_subnode(node, dev_ofnode(dev->parent)) {
 		const char *device_type;
 
+		/* skip if hart is marked as not available in the device tree */
+		if (!ofnode_is_available(node))
+			continue;
+
 		device_type = ofnode_read_string(node, "device_type");
 		if (!device_type)
 			continue;