From 02da4154a1a0a0a07feceb0262dc33fbff351670 Mon Sep 17 00:00:00 2001
From: Michael Reutman <mreutman@gmail.com>
Date: Tue, 4 Dec 2018 20:22:55 -0800
Subject: [PATCH] Add static qualifier to s_light_sleep_wakeup variable to
 prevent it from being global.

Closes https://github.com/espressif/esp-idf/pull/2793
---
 components/esp32/sleep_modes.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/esp32/sleep_modes.c b/components/esp32/sleep_modes.c
index f3bd071f3f..d460365905 100644
--- a/components/esp32/sleep_modes.c
+++ b/components/esp32/sleep_modes.c
@@ -81,7 +81,9 @@ static sleep_config_t s_config = {
     .wakeup_triggers = 0
 };
 
-bool s_light_sleep_wakeup = false;
+/* Internal variable used to track if light sleep wakeup sources are to be
+   expected when determining wakeup cause. */
+static bool s_light_sleep_wakeup = false;
 
 /* Updating RTC_MEMORY_CRC_REG register via set_rtc_memory_crc()
    is not thread-safe. */