[PATCH v1 1/5] x86/cpu: Factor init_cpu_info() out of identify_cpu()

[Ihor Solodrai <ihor.solodrai@linux.dev>]

identify_cpu() begins by resetting the struct cpuinfo_x86 fields to
their unknown/default values and clearing the capability arrays with
memset().

Move that reset into a new helper: init_cpu_info(). This is
preparation for letting the callers decide whether the reset is
needed.

Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
---
 arch/x86/kernel/cpu/common.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index a3df21d26460..505ce329e821 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1993,14 +1993,8 @@ static void generic_identify(struct cpuinfo_x86 *c)
 #endif
 }
 
-/*
- * This does the hard work of actually picking apart the CPU stuff...
- */
-static void identify_cpu(struct cpuinfo_x86 *c)
+static void init_cpu_info(struct cpuinfo_x86 *c)
 {
-	int i;
-
-	c->loops_per_jiffy = loops_per_jiffy;
 	c->x86_cache_size = 0;
 	c->x86_vendor = X86_VENDOR_UNKNOWN;
 	c->x86_model = c->x86_stepping = 0;	/* So far unknown... */
@@ -2022,6 +2016,15 @@ static void identify_cpu(struct cpuinfo_x86 *c)
 #ifdef CONFIG_X86_VMX_FEATURE_NAMES
 	memset(&c->vmx_capability, 0, sizeof(c->vmx_capability));
 #endif
+}
+
+static void identify_cpu(struct cpuinfo_x86 *c)
+{
+	int i;
+
+	c->loops_per_jiffy = loops_per_jiffy;
+
+	init_cpu_info(c);
 
 	generic_identify(c);
 
-- 
2.54.0