efi: Drop unused efi_range_is_wc() function

efi_range_is_wc() has no callers, so remove it.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 664898d09ff5720cca79bc3207ba75db03f5794a..72e76ec54641596b9aa6467fc7ddb31605b60311 100644 (file)
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -832,27 +832,6 @@ extern int __init parse_efi_signature_list(
        const void *data, size_t size,
        efi_element_handler_t (*get_handler_for_guid)(const efi_guid_t *));
 
-/**
- * efi_range_is_wc - check the WC bit on an address range
- * @start: starting kvirt address
- * @len: length of range
- *
- * Consult the EFI memory map and make sure it's ok to set this range WC.
- * Returns true or false.
- */
-static inline int efi_range_is_wc(unsigned long start, unsigned long len)
-{
-       unsigned long i;
-
-       for (i = 0; i < len; i += (1UL << EFI_PAGE_SHIFT)) {
-               unsigned long paddr = __pa(start + i);
-               if (!(efi_mem_attributes(paddr) & EFI_MEMORY_WC))
-                       return 0;
-       }
-       /* The range checked out */
-       return 1;
-}
-
 /*
  * We play games with efi_enabled so that the compiler will, if
  * possible, remove EFI-related code altogether.