linux-kernel - [PATCH] arm64: acpi: Export symbol for acpi_os

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Date:   Fri, 26 May 2023 20:17:51 +0800
From:   Huisong Li <lihuisong@...wei.com>
To:     <catalin.marinas@....com>, <will@...nel.org>,
        <sudeep.holla@....com>, <rafael.j.wysocki@...el.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <anshuman.khandual@....com>,
        <wangkefeng.wang@...wei.com>, <liuyonglong@...wei.com>,
        <lihuisong@...wei.com>
Subject: [PATCH] arm64: acpi: Export symbol for acpi_os_ioremap

The driver who calls the acpi_os_ioremap() cannot be compiled if the 'M'
is selected for the driver. The compiling log is as follows:
-->
MODPOST Module.symvers
ERROR: modpost: "acpi_os_ioremap" [drivers/soc/hisilicon/xxx.ko] undefined!
scripts/Makefile.modpost:136: recipe for target 'Module.symvers' failed
make[1]: *** [Module.symvers] Error 1

So this patch exports symbol for acpi_os_ioremap.

Signed-off-by: Huisong Li <lihuisong@...wei.com>
---
 arch/arm64/kernel/acpi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index dba8fcec7f33..ec0414caf3d1 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -354,6 +354,7 @@ void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
 	}
 	return ioremap_prot(phys, size, pgprot_val(prot));
 }
+EXPORT_SYMBOL(acpi_os_ioremap);
 
 /*
  * Claim Synchronous External Aborts as a firmware first notification.
-- 
2.33.0