LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled

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commit a9d13433fe upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Huacai Chen 2025-09-18 19:44:01 +08:00 • committed by Greg Kroah-Hartman

parent 83ca7939cc

commit e481c2fd34

1 changed files with 3 additions and 4 deletions

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arch/loongarch/include/asm/acenv.h

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