From 45f5d30e2eccd1da4f7e5253d1ac637d4cecd02d Mon Sep 17 00:00:00 2001
From: no1wudi <757509347@qq.com>
Date: Thu, 23 Mar 2017 13:38:26 +0800
Subject: [PATCH 1/2] fix compile error when disabled the flash data cache
 corruption for stm32 f1xx

---
 arch/arm/src/stm32/stm32_flash.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/src/stm32/stm32_flash.c b/arch/arm/src/stm32/stm32_flash.c
index 8ba48a82623..f955085a27b 100644
--- a/arch/arm/src/stm32/stm32_flash.c
+++ b/arch/arm/src/stm32/stm32_flash.c
@@ -127,6 +127,7 @@ static void flash_lock(void)
 {
   modifyreg32(STM32_FLASH_CR, 0, FLASH_CR_LOCK);
 }
+#if defined(CONFIG_STM32_FLASH_WORKAROUND_DATA_CACHE_CORRUPTION_ON_RWW)
 
 static void data_cache_disable(void)
 {
@@ -144,6 +145,7 @@ static void data_cache_enable(void)
   modifyreg32(STM32_FLASH_ACR, 0, FLASH_ACR_DCEN);
 }
 
+#endif
 /************************************************************************************
  * Public Functions
  ************************************************************************************/

From fd76a3db05d18989f1c49fb539b62ef3e22d8ae7 Mon Sep 17 00:00:00 2001
From: no1wudi <757509347@qq.com>
Date: Fri, 24 Mar 2017 08:52:46 +0800
Subject: [PATCH 2/2] fix spacing

---
 arch/arm/src/stm32/stm32_flash.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/src/stm32/stm32_flash.c b/arch/arm/src/stm32/stm32_flash.c
index 0267d58eb25..85a3fb18040 100644
--- a/arch/arm/src/stm32/stm32_flash.c
+++ b/arch/arm/src/stm32/stm32_flash.c
@@ -127,7 +127,6 @@ static void flash_lock(void)
 {
   modifyreg32(STM32_FLASH_CR, 0, FLASH_CR_LOCK);
 }
-#if defined(CONFIG_STM32_FLASH_WORKAROUND_DATA_CACHE_CORRUPTION_ON_RWW)
 
 #if defined(CONFIG_STM32_FLASH_WORKAROUND_DATA_CACHE_CORRUPTION_ON_RWW)
 static void data_cache_disable(void)
@@ -145,9 +144,8 @@ static void data_cache_enable(void)
 
   modifyreg32(STM32_FLASH_ACR, 0, FLASH_ACR_DCEN);
 }
-#endif
+#endif /* defined(CONFIG_STM32_FLASH_WORKAROUND_DATA_CACHE_CORRUPTION_ON_RWW) */
 
-#endif
 /************************************************************************************
  * Public Functions
  ************************************************************************************/