| Message ID | 20230803-arm-irqentry-v1-1-8aad8e260b1c@axis.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: fix stack depot IRQ stack filter | expand |
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 */
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"). Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> --- arch/arm/include/asm/exception.h | 4 ---- 1 file changed, 4 deletions(-) --- base-commit: 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 change-id: 20230803-arm-irqentry-6c55790fa05f Best regards,