Fix documentation for GCM decryption functions
This commit fixes documentation specifying buffer overlap on GCM
decryption functions.
Signed-off-by: Harry Ramsey <harry.ramsey@arm.com>
diff --git a/include/mbedtls/gcm.h b/include/mbedtls/gcm.h
index 43d0aa7..390ed4c 100644
--- a/include/mbedtls/gcm.h
+++ b/include/mbedtls/gcm.h
@@ -178,9 +178,11 @@
* \brief This function performs a GCM authenticated decryption of a
* buffer.
*
- * \note For decryption, the output buffer cannot be the same as
- * input buffer. If the buffers overlap, the output buffer
- * must trail at least 8 Bytes behind the input buffer.
+ * \note The output buffer \p output can be the same as the input
+ * buffer \p input. If \p output is greater than \p input, they
+ * cannot overlap. Implementations which require
+ * MBEDTLS_GCM_ALT to be enabled may not provide support for
+ * overlapping buffers.
*
* \param ctx The GCM context. This must be initialized.
* \param length The length of the ciphertext to decrypt, which is also
@@ -289,8 +291,8 @@
* \note The output buffer \p output can be the same as the input
* buffer \p input. If \p output is greater than \p input, they
* cannot overlap. Implementations which require
- * MBEDTLS_GCM_ALT //no-check-names to be enabled may not
- * provide support for overlapping buffers.
+ * MBEDTLS_GCM_ALT to be enabled may not provide support for
+ * overlapping buffers.
*
* \param ctx The GCM context. This must be initialized.
* \param input The buffer holding the input data. If \p input_length