ARM: 9320/1: fix stack depot IRQ stack filter

Place IRQ handlers such as gic_handle_irq() in the irqentry section even
if FUNCTION_GRAPH_TRACER is not enabled.  Without this, the stack
depot's filter_irq_stacks() does not correctly filter out IRQ stacks in
those configurations, which hampers deduplication and eventually leads
to "Stack depot reached limit capacity" splats with KASAN.

A similar fix was done for arm64 in commit f6794950f0
("arm64: set __exception_irq_entry with __irq_entry as a default").

Link: https://lore.kernel.org/r/20230803-arm-irqentry-v1-1-8aad8e260b1c@axis.com

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

This commit is contained in:

Vincent Whitchurch

2023-08-21 08:45:21 +01:00

committed by

Russell King (Oracle)

parent 414f28a942

commit b015001487

1 changed files with 0 additions and 4 deletions

									
										arch/arm/include/asm/exception.h
									
		-4
	
												View File
												
				@@ -10,10 +10,6 @@

				#include <linux/interrupt.h>

				#ifdef CONFIG_FUNCTION_GRAPH_TRACER

				#define __exception_irq_entry	__irq_entry

				#else

				#define __exception_irq_entry

				#endif

				#endif /* __ASM_ARM_EXCEPTION_H */