From e4eefc716a16fd7a879189b5322b9275b5b80b9e Mon Sep 17 00:00:00 2001
From: Jerry Yu <jerry.h.yu@arm.com>
Date: Sat, 9 Oct 2021 10:40:40 +0800
Subject: [PATCH] Improve document for chk_buf_read_ptr

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
---
 library/ssl_misc.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 4205a477c1..6b33cb5dbc 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -414,7 +414,9 @@ static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur,
  *               greater or equal than a needed length. If it is not the case, it
  *               returns #MBEDTLS_ERR_SSL_DECODE_ERROR error and pends a
  *               #MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR alert message.
- *               It is used to guaranteed remaining length.
+ *
+ *               This is a function-like macro. It is guaranteed to evaluate each
+ *               argument exactly once.
  *
  * \param cur    Pointer to the current position in the buffer.
  * \param end    Pointer to one past the end of the buffer.