[RESEND PATCH v1 3/5] efi_capsule: Add a weak function to check whether capsule authentication is enabled

[Sughosh Ganu <sughosh.ganu@linaro.org>]

Define a weak function which checks if the environment variable
capsule_authentication_enabled has been set, for enabling capsule
authentication. Other platforms might have a different mechanism to
determine this, and would then define their own platform specific
function.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
---
 board/emulation/common/qemu_capsule.c | 6 ------
 lib/efi_loader/efi_capsule.c          | 6 ++++++
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/board/emulation/common/qemu_capsule.c b/board/emulation/common/qemu_capsule.c
index 5cb461d52b..6b8a87022a 100644
--- a/board/emulation/common/qemu_capsule.c
+++ b/board/emulation/common/qemu_capsule.c
@@ -41,9 +41,3 @@ int efi_get_public_key_data(void **pkey, efi_uintn_t *pkey_len)
 
 	return 0;
 }
-
-bool efi_capsule_auth_enabled(void)
-{
-	return env_get("capsule_authentication_enabled") != NULL ?
-		true : false;
-}
diff --git a/lib/efi_loader/efi_capsule.c b/lib/efi_loader/efi_capsule.c
index 0cfff0daf7..1423b675c8 100644
--- a/lib/efi_loader/efi_capsule.c
+++ b/lib/efi_loader/efi_capsule.c
@@ -218,6 +218,12 @@ __weak int efi_get_public_key_data(void **pkey, efi_uintn_t *pkey_len)
 	return 0;
 }
 
+__weak bool efi_capsule_auth_enabled(void)
+{
+	return env_get("capsule_authentication_enabled") ?
+		true : false;
+}
+
 efi_status_t efi_capsule_authenticate(const void *capsule, efi_uintn_t capsule_size,
 				      void **image, efi_uintn_t *image_size)
 {
-- 
2.17.1