diff options
| author | Vincent Whitchurch <vincent.whitchurch@axis.com> | 2023-08-21 08:45:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-28 16:50:15 +0000 |
| commit | 953ed26a77c6db20f4f5cd3e0b8235f83a517e0c (patch) | |
| tree | 9a35786c9ddabee4be4f7df91d0219f318147208 /arch | |
| parent | 7467ca10a5ff09b0e87edf6c4d2a4bfdee69cf2c (diff) | |
ARM: 9320/1: fix stack depot IRQ stack filter
[ Upstream commit b0150014878c32197cfa66e3e2f79e57f66babc0 ]
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 f6794950f0e5ba37e3bbed
("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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/exception.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm/include/asm/exception.h b/arch/arm/include/asm/exception.h index 58e039a851af..3c82975d46db 100644 --- a/arch/arm/include/asm/exception.h +++ b/arch/arm/include/asm/exception.h @@ -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 */ |