From 77dd8adabbc8ff845177b460de48b9d2cd579966 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 9 Mar 2026 13:52:22 +0100 Subject: [PATCH] efi: Drop unused efi_range_is_wc() function efi_range_is_wc() has no callers, so remove it. Reviewed-by: Ilias Apalodimas Signed-off-by: Ard Biesheuvel --- include/linux/efi.h | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/include/linux/efi.h b/include/linux/efi.h index 664898d09ff57..72e76ec546415 100644 --- 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. -- 2.47.3