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

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[ Upstream commit b015001487 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Vincent Whitchurch 2023-08-21 08:45:21 +01:00 • committed by Greg Kroah-Hartman

parent 6e2076cad8

commit fa7abd3c5c

1 changed files with 0 additions and 4 deletions

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arch/arm/include/asm/exception.h

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