Commit 77dd8ada authored by Ard Biesheuvel's avatar Ard Biesheuvel
Browse files

efi: Drop unused efi_range_is_wc() function 



efi_range_is_wc() has no callers, so remove it.

Reviewed-by: default avatarIlias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
parent eaeff841

include/linux/efi.h

+0 −21
Original line number Diff line number Diff line
@@ -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.