From 37bf72e35da37dde0fd4edd7cb5e28d7a1aeaa1b Mon Sep 17 00:00:00 2001
From: dhy308 <tony.gan@huawei.com>
Date: Sat, 18 Feb 2023 17:49:54 +0800
Subject: [PATCH] Fix review issues.

Issue: I6AEEI
Test: Build & Boot Devices

Signed-off-by: dhy308 <tony.gan@huawei.com>
---
 libc-test/src/functionalext/common/sigchain_util.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libc-test/src/functionalext/common/sigchain_util.h b/libc-test/src/functionalext/common/sigchain_util.h
index ed509101..c9674e51 100644
--- a/libc-test/src/functionalext/common/sigchain_util.h
+++ b/libc-test/src/functionalext/common/sigchain_util.h
@@ -13,6 +13,10 @@
  * limitations under the License.
  */
 
+/* 
+ * SIG_BLOCK: Mask the signal according to the mask word provided by parameter set. 
+ * And save the original signal mask to oldset
+ */
 #define SIGCHAIN_TEST_SET_MASK(set, fun, signo, num)  do{ \
     int result = sigemptyset(&set);                       \
     if (result != 0) {                                    \
-- 
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