linux-kernel - [PATCH v9 12/24] x86/sev: Make snp_issue_guest

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Date: Fri, 31 May 2024 10:00:26 +0530
From: Nikunj A Dadhania <nikunj@....com>
To: <linux-kernel@...r.kernel.org>, <thomas.lendacky@....com>, <bp@...en8.de>,
	<x86@...nel.org>, <kvm@...r.kernel.org>
CC: <mingo@...hat.com>, <tglx@...utronix.de>, <dave.hansen@...ux.intel.com>,
	<pgonda@...gle.com>, <seanjc@...gle.com>, <pbonzini@...hat.com>,
	<nikunj@....com>
Subject: [PATCH v9 12/24] x86/sev: Make snp_issue_guest_request() static

As there is no external caller for snp_issue_guest_request() anymore,
make it static and drop the prototype from the header.

No functional change.

Signed-off-by: Nikunj A Dadhania <nikunj@....com>
---
 arch/x86/include/asm/sev.h | 8 --------
 arch/x86/kernel/sev.c      | 3 +--
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h
index 9c5bd8063491..109185daff2c 100644
--- a/arch/x86/include/asm/sev.h
+++ b/arch/x86/include/asm/sev.h
@@ -318,8 +318,6 @@ void snp_set_wakeup_secondary_cpu(void);
 bool snp_init(struct boot_params *bp);
 void __noreturn snp_abort(void);
 void snp_dmi_setup(void);
-int snp_issue_guest_request(struct snp_guest_req *req, struct snp_req_data *input,
-			    struct snp_guest_request_ioctl *rio);
 void snp_accept_memory(phys_addr_t start, phys_addr_t end);
 u64 snp_get_unsupported_features(u64 status);
 u64 sev_get_status(void);
@@ -382,12 +380,6 @@ static inline void snp_set_wakeup_secondary_cpu(void) { }
 static inline bool snp_init(struct boot_params *bp) { return false; }
 static inline void snp_abort(void) { }
 static inline void snp_dmi_setup(void) { }
-static inline int snp_issue_guest_request(struct snp_guest_req *req, struct snp_req_data *input,
-					  struct snp_guest_request_ioctl *rio)
-{
-	return -ENOTTY;
-}
-
 static inline void snp_accept_memory(phys_addr_t start, phys_addr_t end) { }
 static inline u64 snp_get_unsupported_features(u64 status) { return 0; }
 static inline u64 sev_get_status(void) { return 0; }
diff --git a/arch/x86/kernel/sev.c b/arch/x86/kernel/sev.c
index c48fbc3ba186..c2508809d4e2 100644
--- a/arch/x86/kernel/sev.c
+++ b/arch/x86/kernel/sev.c
@@ -2192,7 +2192,7 @@ static int __init init_sev_config(char *str)
 }
 __setup("sev=", init_sev_config);
 
-int snp_issue_guest_request(struct snp_guest_req *req, struct snp_req_data *input,
+static int snp_issue_guest_request(struct snp_guest_req *req, struct snp_req_data *input,
 			    struct snp_guest_request_ioctl *rio)
 {
 	struct ghcb_state state;
@@ -2255,7 +2255,6 @@ int snp_issue_guest_request(struct snp_guest_req *req, struct snp_req_data *inpu
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(snp_issue_guest_request);
 
 static struct platform_device sev_guest_device = {
 	.name		= "sev-guest",
-- 
2.34.1