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ARCH_STRICT_ALIGN is used for hardware without UAL, now it only control the -mstrict-align flag. However, ACPI structures are packed by default so will cause unaligned accesses. To avoid this, define ACPI_MISALIGNMENT_NOT_SUPPORTED in asm/acenv.h to align ACPI structures if ARCH_STRICT_ALIGN enabled. Cc: stable@vger.kernel.org Reported-by: Binbin Zhou <zhoubinbin@loongson.cn> Suggested-by: Xi Ruoyao <xry111@xry111.site> Suggested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
18 lines
482 B
C
18 lines
482 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* LoongArch specific ACPICA environments and implementation
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*
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* Author: Jianmin Lv <lvjianmin@loongson.cn>
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* Huacai Chen <chenhuacai@loongson.cn>
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#ifndef _ASM_LOONGARCH_ACENV_H
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#define _ASM_LOONGARCH_ACENV_H
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#ifdef CONFIG_ARCH_STRICT_ALIGN
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#define ACPI_MISALIGNMENT_NOT_SUPPORTED
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#endif /* CONFIG_ARCH_STRICT_ALIGN */
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#endif /* _ASM_LOONGARCH_ACENV_H */
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