[tip: x86/boot] x86/sev: Make sev_snp_enabled() a static function

[tip-bot2 for Ard Biesheuvel]

The following commit has been merged into the x86/boot branch of tip:

Commit-ID:     fae89bbfdd9d692e3cb6eace89f4994177731b8c
Gitweb:        https://git.kernel.org/tip/fae89bbfdd9d692e3cb6eace89f4994177731b8c
Author:        Ard Biesheuvel <ardb@xxxxxxxxxx>
AuthorDate:    Sun, 04 May 2025 11:52:34 +02:00
Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Sun, 04 May 2025 15:53:06 +02:00

x86/sev: Make sev_snp_enabled() a static function

sev_snp_enabled() is no longer used outside of the source file that
defines it, so make it static and drop the extern declarations.

Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: David Woodhouse <dwmw@xxxxxxxxxxxx>
Cc: Dionna Amalie Glaze <dionnaglaze@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Kevin Loughlin <kevinloughlin@xxxxxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Cc: Tom Lendacky <thomas.lendacky@xxxxxxx>
Cc: linux-efi@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20250504095230.2932860-29-ardb+git@xxxxxxxxxx
---
 arch/x86/boot/compressed/sev.c | 2 +-
 arch/x86/boot/compressed/sev.h | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index 2ccad0a..f4b7f17 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -164,7 +164,7 @@ int svsm_perform_call_protocol(struct svsm_call *call)
 	return ret;
 }
 
-bool sev_snp_enabled(void)
+static bool sev_snp_enabled(void)
 {
 	return sev_status & MSR_AMD64_SEV_SNP_ENABLED;
 }
diff --git a/arch/x86/boot/compressed/sev.h b/arch/x86/boot/compressed/sev.h
index d390038..e87af54 100644
--- a/arch/x86/boot/compressed/sev.h
+++ b/arch/x86/boot/compressed/sev.h
@@ -10,14 +10,12 @@
 
 #ifdef CONFIG_AMD_MEM_ENCRYPT
 
-bool sev_snp_enabled(void);
 void snp_accept_memory(phys_addr_t start, phys_addr_t end);
 u64 sev_get_status(void);
 bool early_is_sevsnp_guest(void);
 
 #else
 
-static inline bool sev_snp_enabled(void) { return false; }
 static inline void snp_accept_memory(phys_addr_t start, phys_addr_t end) { }
 static inline u64 sev_get_status(void) { return 0; }
 static inline bool early_is_sevsnp_guest(void) { return false; }