*
* wrapper around irq_to_desc. Using KALLSYMS to get its address when
* available, else we need to have a kernel that exports this function to GPL
- * modules. This export was added to the 3.4 kernels.
+ * modules. This export was added to the 3.4 kernels and removed in 5.11.
*
* Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*/
#include <lttng/kernel-version.h>
#include <linux/module.h>
-#if (defined(CONFIG_KALLSYMS) \
- && (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)))
+#if (defined(CONFIG_KALLSYMS) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0)))
#include <linux/kallsyms.h>
#include <linux/interrupt.h>
if (!irq_to_desc_sym)
irq_to_desc_sym = (void *) kallsyms_lookup_funcptr("irq_to_desc");
if (irq_to_desc_sym) {
- return irq_to_desc_sym(irq);
+ struct irq_ibt_state irq_ibt_state;
+ struct irq_desc *ret;
+
+ irq_ibt_state = wrapper_irq_ibt_save();
+ ret = irq_to_desc_sym(irq);
+ wrapper_irq_ibt_restore(irq_ibt_state);
+ return ret;
} else {
printk_once(KERN_WARNING "LTTng: irq_to_desc symbol lookup failed.\n");
return NULL;