diff --git a/os/hal/platforms/STM32F0xx/stm32_dma.h b/os/hal/platforms/STM32F0xx/stm32_dma.h
index b1e06e6b5..1bf669931 100644
--- a/os/hal/platforms/STM32F0xx/stm32_dma.h
+++ b/os/hal/platforms/STM32F0xx/stm32_dma.h
@@ -142,7 +142,7 @@
 #define STM32_DMA_CR_MSIZE_BYTE     0
 #define STM32_DMA_CR_MSIZE_HWORD    DMA_CCR_MSIZE_0
 #define STM32_DMA_CR_MSIZE_WORD     DMA_CCR_MSIZE_1
-#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_MSIZE_MASK |              \
+#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_PSIZE_MASK |              \
                                      STM32_DMA_CR_MSIZE_MASK)
 #define STM32_DMA_CR_PL_MASK        DMA_CCR_PL
 #define STM32_DMA_CR_PL(n)          ((n) << 12)
diff --git a/os/hal/platforms/STM32F1xx/stm32_dma.h b/os/hal/platforms/STM32F1xx/stm32_dma.h
index aa612d592..3217a8ab1 100644
--- a/os/hal/platforms/STM32F1xx/stm32_dma.h
+++ b/os/hal/platforms/STM32F1xx/stm32_dma.h
@@ -153,7 +153,7 @@
 #define STM32_DMA_CR_MSIZE_BYTE     0
 #define STM32_DMA_CR_MSIZE_HWORD    DMA_CCR1_MSIZE_0
 #define STM32_DMA_CR_MSIZE_WORD     DMA_CCR1_MSIZE_1
-#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_MSIZE_MASK |              \
+#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_PSIZE_MASK |              \
                                      STM32_DMA_CR_MSIZE_MASK)
 #define STM32_DMA_CR_PL_MASK        DMA_CCR1_PL
 #define STM32_DMA_CR_PL(n)          ((n) << 12)
diff --git a/os/hal/platforms/STM32F3xx/stm32_dma.h b/os/hal/platforms/STM32F3xx/stm32_dma.h
index 09f4ac30b..3a558c9e6 100644
--- a/os/hal/platforms/STM32F3xx/stm32_dma.h
+++ b/os/hal/platforms/STM32F3xx/stm32_dma.h
@@ -153,7 +153,7 @@
 #define STM32_DMA_CR_MSIZE_BYTE     0
 #define STM32_DMA_CR_MSIZE_HWORD    DMA_CCR_MSIZE_0
 #define STM32_DMA_CR_MSIZE_WORD     DMA_CCR_MSIZE_1
-#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_MSIZE_MASK |              \
+#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_PSIZE_MASK |              \
                                      STM32_DMA_CR_MSIZE_MASK)
 #define STM32_DMA_CR_PL_MASK        DMA_CCR_PL
 #define STM32_DMA_CR_PL(n)          ((n) << 12)
diff --git a/os/hal/platforms/STM32F4xx/stm32_dma.h b/os/hal/platforms/STM32F4xx/stm32_dma.h
index af466b01d..3499c6f39 100644
--- a/os/hal/platforms/STM32F4xx/stm32_dma.h
+++ b/os/hal/platforms/STM32F4xx/stm32_dma.h
@@ -151,7 +151,7 @@
 #define STM32_DMA_CR_MSIZE_BYTE     0
 #define STM32_DMA_CR_MSIZE_HWORD    DMA_SxCR_MSIZE_0
 #define STM32_DMA_CR_MSIZE_WORD     DMA_SxCR_MSIZE_1
-#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_MSIZE_MASK |              \
+#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_PSIZE_MASK |              \
                                      STM32_DMA_CR_MSIZE_MASK)
 #define STM32_DMA_CR_PL_MASK        DMA_SxCR_PL
 #define STM32_DMA_CR_PL(n)          ((n) << 16)
diff --git a/os/hal/platforms/STM32L1xx/stm32_dma.h b/os/hal/platforms/STM32L1xx/stm32_dma.h
index 71af4a339..ba7be01ca 100644
--- a/os/hal/platforms/STM32L1xx/stm32_dma.h
+++ b/os/hal/platforms/STM32L1xx/stm32_dma.h
@@ -144,7 +144,7 @@
 #define STM32_DMA_CR_MSIZE_BYTE     0
 #define STM32_DMA_CR_MSIZE_HWORD    DMA_CCR1_MSIZE_0
 #define STM32_DMA_CR_MSIZE_WORD     DMA_CCR1_MSIZE_1
-#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_MSIZE_MASK |              \
+#define STM32_DMA_CR_SIZE_MASK      (STM32_DMA_CR_PSIZE_MASK |              \
                                      STM32_DMA_CR_MSIZE_MASK)
 #define STM32_DMA_CR_PL_MASK        DMA_CCR1_PL
 #define STM32_DMA_CR_PL(n)          ((n) << 12)
diff --git a/readme.txt b/readme.txt
index 35c256282..48043cd65 100644
--- a/readme.txt
+++ b/readme.txt
@@ -82,6 +82,8 @@
 *****************************************************************************
 
 *** 2.5.1 ***
+- FIX: Fixed DMA reconfiguration problem in STM32 SPI driver (bug 3592809)
+  (backported to 2.4.3).
 - FIX: Fixed wrong stack initializations in GCC STM32L1xx port files (bug
   3591321)(backported to 2.4.3).
 - FIX: Fixed different redefinition for __main_stack_end__ symbol (bug