Add routines to return the amount of memory and header storage needed for
the encryption module.
Signed-off-by: Nigel Cunningham <[email protected]>
kernel/power/encryption.c | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/kernel/power/encryption.c b/kernel/power/encryption.c
index 25db7ba..d12eb47 100644
--- a/kernel/power/encryption.c
+++ b/kernel/power/encryption.c
@@ -297,3 +297,23 @@ static int suspend_encrypt_print_debug_s
return len;
}
+/* encryption_memory_needed
+ *
+ * Description: Tell the caller how much memory we need to operate during
+ * suspend/resume.
+ * Returns: Unsigned long. Maximum number of bytes of memory required for
+ * operation.
+ */
+static unsigned long suspend_encrypt_memory_needed(void)
+{
+ return PAGE_SIZE;
+}
+
+static unsigned long suspend_encrypt_storage_needed(void)
+{
+ return 4 + strlen(suspend_encryptor_name) +
+ (suspend_encryptor_save_key_and_iv ?
+ (4 + strlen(suspend_encryptor_key) +
+ strlen(suspend_encryptor_iv)) : 0);
+}
+
--
Nigel Cunningham nigel at suspend2 dot net
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