[RFC 3/3] acpi: use grub_efi_find_config_table to find tables

[Leif Lindholm <leif.lindholm@linaro.org>]

Use new helper function rather than manually iterating through UEFI
system table.
---
 grub-core/kern/efi/acpi.c | 28 ++++------------------------
 1 file changed, 4 insertions(+), 24 deletions(-)

diff --git a/grub-core/kern/efi/acpi.c b/grub-core/kern/efi/acpi.c
index 74f8cd1..523d682 100644
--- a/grub-core/kern/efi/acpi.c
+++ b/grub-core/kern/efi/acpi.c
@@ -25,35 +25,15 @@
 struct grub_acpi_rsdp_v10 *
 grub_machine_acpi_get_rsdpv1 (void)
 {
-  unsigned i;
-  static grub_efi_packed_guid_t acpi_guid = GRUB_EFI_ACPI_TABLE_GUID;
+  static grub_efi_guid_t acpi_guid = GRUB_EFI_ACPI_TABLE_GUID;
 
-  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
-    {
-      grub_efi_packed_guid_t *guid =
-	&grub_efi_system_table->configuration_table[i].vendor_guid;
-
-      if (! grub_memcmp (guid, &acpi_guid, sizeof (grub_efi_packed_guid_t)))
-	return (struct grub_acpi_rsdp_v10 *)
-	  grub_efi_system_table->configuration_table[i].vendor_table;
-    }
-  return 0;
+  return grub_efi_find_config_table (&acpi_guid);
 }
 
 struct grub_acpi_rsdp_v20 *
 grub_machine_acpi_get_rsdpv2 (void)
 {
-  unsigned i;
-  static grub_efi_packed_guid_t acpi20_guid = GRUB_EFI_ACPI_20_TABLE_GUID;
-
-  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
-    {
-      grub_efi_packed_guid_t *guid =
-	&grub_efi_system_table->configuration_table[i].vendor_guid;
+  static grub_efi_guid_t acpi20_guid = GRUB_EFI_ACPI_20_TABLE_GUID;
 
-      if (! grub_memcmp (guid, &acpi20_guid, sizeof (grub_efi_packed_guid_t)))
-	return (struct grub_acpi_rsdp_v20 *)
-	  grub_efi_system_table->configuration_table[i].vendor_table;
-    }
-  return 0;
+  return grub_efi_find_config_table (&acpi20_guid);
 }
-- 
2.1.4