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efi/libstub: Export efi_low_alloc_above() to other units 

Permit arm32-stub.c to access efi_low_alloc_above() in a subsequent
patch by giving it external linkage and declaring it in efistub.h.

Reviewed-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Tested-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel 2020-09-09 16:16:20 +03:00
parent 6208857b8f
commit 1a895dbf4b
2 changed files with 5 additions and 2 deletions
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3
drivers/firmware/efi/libstub/efistub.h
View File

@ -740,6 +740,9 @@ efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr,
efi_status_t efi_allocate_pages_aligned(unsigned long size, unsigned long *addr,
unsigned long max, unsigned long align);
efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align,
unsigned long *addr, unsigned long min);
efi_status_t efi_relocate_kernel(unsigned long *image_addr,
unsigned long image_size,
unsigned long alloc_size,

4
drivers/firmware/efi/libstub/relocate.c
View File

@ -20,8 +20,8 @@
*
* Return: status code
*/
static efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align,
unsigned long *addr, unsigned long min)
efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align,
unsigned long *addr, unsigned long min)
{
unsigned long map_size, desc_size, buff_size;
efi_memory_desc_t *map;