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

tip-bot2 for Ard Biesheuvel
2025-05-04T14:20:30Z

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@kernel.org>
AuthorDate: Sun, 04 May 2025 11:52:34 +02:00
Committer: Ingo Molnar <mingo@kernel.org>
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@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Dionna Amalie Glaze <dionnaglaze@google.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kevin Loughlin <kevinloughlin@google.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: linux-efi@vger.kernel.org
Link: https://lore.kernel.org/r/20250504095230.2932860-29-ardb+git@google.com
---
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; }