laforge submitted this change.

Approvals:
  Hoernchen: Looks good to me, approved
  Jenkins Builder: Verified

dfu: download: align download data buffer

The download data buffer is given to the usb stack.
Ensure the data buffer is dma capable to prevent an
additional memcpy() by the usb hal.

Change-Id: I01191a125aa62c2198e38d5e5fcd27d4e421c62e
---
M usb/class/dfu/device/dfudf.c
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usb/class/dfu/device/dfudf.c b/usb/class/dfu/device/dfudf.c
index 7388060..4b010bd 100644
--- a/usb/class/dfu/device/dfudf.c
+++ b/usb/class/dfu/device/dfudf.c
@@ -42,7 +42,7 @@
 volatile enum usb_dfu_state dfu_state = USB_DFU_STATE_DFU_IDLE;
 volatile enum usb_dfu_status dfu_status = USB_DFU_STATUS_OK;
 
-uint8_t dfu_download_data[512];
+uint8_t __attribute__((aligned(4))) dfu_download_data[512];
 volatile uint16_t dfu_download_length = 0;
 volatile size_t dfu_download_offset = 0;

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