linux-kernel - [PATCH 09/12] x86/microcode/AMD: Retract functions

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Message-Id: <20161025095522.11964-10-bp@alien8.de>
Date:   Tue, 25 Oct 2016 11:55:19 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     X86 ML <x86@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 09/12] x86/microcode/AMD: Retract functions

From: Borislav Petkov <bp@...e.de>

Make them all static as they're used in a single file now.

No functionality change.

Signed-off-by: Borislav Petkov <bp@...e.de>
---
 arch/x86/include/asm/microcode_amd.h | 21 --------------
 arch/x86/kernel/cpu/microcode/amd.c  | 53 +++++++++++++++++++++++++-----------
 2 files changed, 37 insertions(+), 37 deletions(-)

diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
index ad6a7be3b1f8..3e3e20be829a 100644
--- a/arch/x86/include/asm/microcode_amd.h
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -40,27 +40,6 @@ struct microcode_amd {
 	unsigned int			mpb[0];
 };
 
-static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table,
-				unsigned int sig)
-{
-	int i = 0;
-
-	if (!equiv_cpu_table)
-		return 0;
-
-	while (equiv_cpu_table[i].installed_cpu != 0) {
-		if (sig == equiv_cpu_table[i].installed_cpu)
-			return equiv_cpu_table[i].equiv_cpu;
-
-		i++;
-	}
-	return 0;
-}
-
-extern int __apply_microcode_amd(struct microcode_amd *mc_amd);
-extern int apply_microcode_amd(int cpu);
-extern enum ucode_state load_microcode_amd(int cpu, u8 family, const u8 *data, size_t size);
-
 #define PATCH_MAX_SIZE PAGE_SIZE
 
 #ifdef CONFIG_MICROCODE_AMD
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index bb16418ecaa9..03c19a68d61f 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -126,6 +126,37 @@ static size_t compute_container_size(u8 *data, u32 total_size)
 	return size;
 }
 
+static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table,
+				unsigned int sig)
+{
+	int i = 0;
+
+	if (!equiv_cpu_table)
+		return 0;
+
+	while (equiv_cpu_table[i].installed_cpu != 0) {
+		if (sig == equiv_cpu_table[i].installed_cpu)
+			return equiv_cpu_table[i].equiv_cpu;
+
+		i++;
+	}
+	return 0;
+}
+
+static int __apply_microcode_amd(struct microcode_amd *mc_amd)
+{
+	u32 rev, dummy;
+
+	native_wrmsrl(MSR_AMD64_PATCH_LOADER, (u64)(long)&mc_amd->hdr.data_code);
+
+	/* verify patch application was successful */
+	native_rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
+	if (rev != mc_amd->hdr.patch_id)
+		return -1;
+
+	return 0;
+}
+
 /*
  * Early load occurs before we can vmalloc(). So we look for the microcode
  * patch container file in initrd, traverse equivalent cpu table, look for a
@@ -395,6 +426,9 @@ void load_ucode_amd_ap(unsigned int family)
 }
 #endif
 
+static enum ucode_state
+load_microcode_amd(int cpu, u8 family, const u8 *data, size_t size);
+
 int __init save_microcode_in_initrd_amd(unsigned int family)
 {
 	unsigned long cont;
@@ -649,21 +683,7 @@ bool check_current_patch_level(u32 *rev, bool early)
 	return ret;
 }
 
-int __apply_microcode_amd(struct microcode_amd *mc_amd)
-{
-	u32 rev, dummy;
-
-	native_wrmsrl(MSR_AMD64_PATCH_LOADER, (u64)(long)&mc_amd->hdr.data_code);
-
-	/* verify patch application was successful */
-	native_rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
-	if (rev != mc_amd->hdr.patch_id)
-		return -1;
-
-	return 0;
-}
-
-int apply_microcode_amd(int cpu)
+static int apply_microcode_amd(int cpu)
 {
 	struct cpuinfo_x86 *c = &cpu_data(cpu);
 	struct microcode_amd *mc_amd;
@@ -846,7 +866,8 @@ static enum ucode_state __load_microcode_amd(u8 family, const u8 *data,
 	return UCODE_OK;
 }
 
-enum ucode_state load_microcode_amd(int cpu, u8 family, const u8 *data, size_t size)
+static enum ucode_state
+load_microcode_amd(int cpu, u8 family, const u8 *data, size_t size)
 {
 	enum ucode_state ret;
 
-- 
2.10.0