x86/CPU/AMD: Remove amd_get_topology_early()

... and fold its function body into its single call site.

No functional changes:

  # arch/x86/kernel/cpu/amd.o:

   text    data     bss     dec     hex filename
   5994     385       1    6380    18ec amd.o.before
   5994     385       1    6380    18ec amd.o.after

md5:
   99ec6daa095b502297884e949c520f90  amd.o.before.asm
   99ec6daa095b502297884e949c520f90  amd.o.after.asm
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200123165811.5288-1-bp@alien8.de

arch/x86/kernel/cpu/amd.c

@@ -319,13 +319,6 @@ static void legacy_fixup_core_id(struct cpuinfo_x86 *c)
 	c->cpu_core_id %= cus_per_node;
 }
 
-
-static void amd_get_topology_early(struct cpuinfo_x86 *c)
-{
-	if (cpu_has(c, X86_FEATURE_TOPOEXT))
-		smp_num_siblings = ((cpuid_ebx(0x8000001e) >> 8) & 0xff) + 1;
-}
-
 /*
  * Fixup core topology information for
  * (1) AMD multi-node processors
@@ -717,7 +710,8 @@ static void early_init_amd(struct cpuinfo_x86 *c)
 		}
 	}
 
-	amd_get_topology_early(c);
+	if (cpu_has(c, X86_FEATURE_TOPOEXT))
+		smp_num_siblings = ((cpuid_ebx(0x8000001e) >> 8) & 0xff) + 1;
 }
 
 static void init_amd_k8(struct cpuinfo_x86 *c)