[RFC][PATCH v2 09/29] genirq/irqdesc: Annotate static information into Kmemdump

From: Eugen Hristev
Date: Thu Jul 24 2025 - 10:00:04 EST


Annotate vital static information into kmemdump:
- nr_irqs

Information on these variables is stored into dedicated kmemdump section.

Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxx>
---
kernel/irq/irqdesc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index b64c57b44c20..6d11b85be2b3 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -12,6 +12,7 @@
#include <linux/export.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
+#include <linux/kmemdump.h>
#include <linux/maple_tree.h>
#include <linux/irqdomain.h>
#include <linux/sysfs.h>
@@ -140,6 +141,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node,
}

static unsigned int nr_irqs = NR_IRQS;
+KMEMDUMP_VAR_CORE(nr_irqs, sizeof(nr_irqs));

/**
* irq_get_nr_irqs() - Number of interrupts supported by the system.
--
2.43.0