x86/microcode/AMD: Rename a couple of functions

- Rename apply_microcode_early_amd() to early_apply_microcode():
simplify the name so that it is clear what it does and when does it do
it.

- Rename __load_ucode_amd() to find_blobs_in_containers(): the new name
actually explains what it does.

Document some.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20221219210656.5140-1-bp@alien8.de

arch/x86/kernel/cpu/microcode/amd.c

@@ -414,8 +414,7 @@ static int __apply_microcode_amd(struct microcode_amd *mc)
  *
  * Returns true if container found (sets @desc), false otherwise.
  */
-static bool
-apply_microcode_early_amd(u32 cpuid_1_eax, void *ucode, size_t size, bool save_patch)
+static bool early_apply_microcode(u32 cpuid_1_eax, void *ucode, size_t size, bool save_patch)
 {
 	struct cont_desc desc = { 0 };
 	u8 (*patch)[PATCH_MAX_SIZE];
@@ -481,7 +480,7 @@ static bool get_builtin_microcode(struct cpio_data *cp, unsigned int family)
 	return false;
 }
 
-static void __load_ucode_amd(unsigned int cpuid_1_eax, struct cpio_data *ret)
+static void find_blobs_in_containers(unsigned int cpuid_1_eax, struct cpio_data *ret)
 {
 	struct ucode_cpu_info *uci;
 	struct cpio_data cp;
@@ -511,11 +510,11 @@ void __init load_ucode_amd_bsp(unsigned int cpuid_1_eax)
 {
 	struct cpio_data cp = { };
 
-	__load_ucode_amd(cpuid_1_eax, &cp);
+	find_blobs_in_containers(cpuid_1_eax, &cp);
 	if (!(cp.data && cp.size))
 		return;
 
-	apply_microcode_early_amd(cpuid_1_eax, cp.data, cp.size, true);
+	early_apply_microcode(cpuid_1_eax, cp.data, cp.size, true);
 }
 
 void load_ucode_amd_ap(unsigned int cpuid_1_eax)
@@ -546,11 +545,11 @@ void load_ucode_amd_ap(unsigned int cpuid_1_eax)
 		}
 	}
 
-	__load_ucode_amd(cpuid_1_eax, &cp);
+	find_blobs_in_containers(cpuid_1_eax, &cp);
 	if (!(cp.data && cp.size))
 		return;
 
-	apply_microcode_early_amd(cpuid_1_eax, cp.data, cp.size, false);
+	early_apply_microcode(cpuid_1_eax, cp.data, cp.size, false);
 }
 
 static enum ucode_state
@@ -816,6 +815,7 @@ static int verify_and_add_patch(u8 family, u8 *fw, unsigned int leftover,
 	return 0;
 }
 
+/* Scan the blob in @data and add microcode patches to the cache. */
 static enum ucode_state __load_microcode_amd(u8 family, const u8 *data,
 					     size_t size)
 {