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>
mariux64 · Sep 16, 2020 · 1a895db · 1a895db
1 parent 6208857
commit 1a895db
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h
@@ -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,

diff --git a/drivers/firmware/efi/libstub/relocate.c b/drivers/firmware/efi/libstub/relocate.c
@@ -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;