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efi: Drop unused efi_range_is_wc() function

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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>
This commit is contained in:
Ard Biesheuvel 2026-03-09 13:52:22 +01:00
parent eaeff8411f
commit 77dd8adabb
1 changed files with 0 additions and 21 deletions
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21
include/linux/efi.h
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@ -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.