efi/bgrt: Use efi_mem_type()

Avoid effectively open-coding the function.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20170825155019.6740-6-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/drivers/firmware/efi/efi-bgrt.c b/drivers/firmware/efi/efi-bgrt.c
index b58233e4ed71ac41709318e03ce06c1d1b2c20ce..50793fda78191da4d4889dcabf12744f71411254 100644 (file)
--- a/drivers/firmware/efi/efi-bgrt.c
+++ b/drivers/firmware/efi/efi-bgrt.c
@@ -27,26 +27,6 @@ struct bmp_header {
        u32 size;
 } __packed;
 
-static bool efi_bgrt_addr_valid(u64 addr)
-{
-       efi_memory_desc_t *md;
-
-       for_each_efi_memory_desc(md) {
-               u64 size;
-               u64 end;
-
-               if (md->type != EFI_BOOT_SERVICES_DATA)
-                       continue;
-
-               size = md->num_pages << EFI_PAGE_SHIFT;
-               end = md->phys_addr + size;
-               if (addr >= md->phys_addr && addr < end)
-                       return true;
-       }
-
-       return false;
-}
-
 void __init efi_bgrt_init(struct acpi_table_header *table)
 {
        void *image;
@@ -85,7 +65,7 @@ void __init efi_bgrt_init(struct acpi_table_header *table)
                goto out;
        }
 
-       if (!efi_bgrt_addr_valid(bgrt->image_address)) {
+       if (efi_mem_type(bgrt->image_address) != EFI_BOOT_SERVICES_DATA) {
                pr_notice("Ignoring BGRT: invalid image address\n");
                goto out;
        }