linux-kernel - [RFC PATCH 2/3] x86/boot/e820: Make e820_type_to

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Message-Id: <20220611204859.234975-2-atomlin@redhat.com>
Date:   Sat, 11 Jun 2022 21:48:58 +0100
From:   Aaron Tomlin <atomlin@...hat.com>
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, joro@...tes.org, will@...nel.org,
        dwmw2@...radead.org, baolu.lu@...ux.intel.com, hpa@...or.com
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        atomlin@...mlin.com
Subject: [RFC PATCH 2/3] x86/boot/e820: Make e820_type_to_string() external

No functional change.

This patch allows e820_type_to_string() to be available for
external use, in preparation to enhance the error message
generated by arch_rmrr_sanity_check().

Signed-off-by: Aaron Tomlin <atomlin@...hat.com>
---
 arch/x86/include/asm/e820/api.h | 1 +
 arch/x86/kernel/e820.c          | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index bf78daa08897..ceb301e591de 100644
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -43,6 +43,7 @@ extern void e820__reallocate_tables(void);
 extern void e820__register_nosave_regions(unsigned long limit_pfn);
 
 extern int  e820__get_entry_type(u64 start, u64 end);
+const char *e820_type_to_string(struct e820_entry *entry);
 
 /*
  * Returns true iff the specified range [start,end) is completely contained inside
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 09b1c863a766..95b994cf80cd 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1071,7 +1071,7 @@ void __init e820__finish_early_params(void)
 	}
 }
 
-static const char *__init e820_type_to_string(struct e820_entry *entry)
+const char *__init e820_type_to_string(struct e820_entry *entry)
 {
 	switch (entry->type) {
 	case E820_TYPE_RESERVED_KERN:	/* Fall-through: */
-- 
2.34.1