From a1f83a563475bd77843c4b44ee44a7d764bc9bba Mon Sep 17 00:00:00 2001
From: Kairui Song <kasong@redhat.com>
Date: Thu, 28 Jan 2021 15:24:32 +0800
Subject: [PATCH] Also fetch node info for non-PCI devices

non-PCI devices could also be bind to a certain node. So if failed to
fetch the info from sysfs, try to get it from /proc/irq/<irq>/node.
---
 classify.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/classify.c b/classify.c
index df8a89b..92f43cc 100644
--- a/classify.c
+++ b/classify.c
@@ -395,7 +395,10 @@ static struct irq_info *add_one_irq_to_db(const char *devpath, int irq, struct u
 get_numa_node:
 	numa_node = -1;
 	if (numa_avail) {
-		sprintf(path, "%s/numa_node", devpath);
+		if (devpath)
+			sprintf(path, "%s/numa_node", devpath);
+		else
+			sprintf(path, "/proc/irq/%i/node", irq);
 		fd = fopen(path, "r");
 		if (fd) {
 			fscanf(fd, "%d", &numa_node);
-- 
2.29.2