Commit 6cf3737f authored by Erwan Gouriou's avatar Erwan Gouriou Committed by Kumar Gala
Browse files

ext/hal: stm32f2xx: Use of (__packed uint32_t *) produces warnings 



Using Zephyr SDK 0.10.0-rc2, GNUCC 8.2.0 is used and
(__packed uint32_t *) are now generating warnings..
Replace with CMSIS macros __UNALIGNED_UINT32_READ and
__UNALIGNED_UINT32_WRITE

ST internal reference: 61324

Signed-off-by: default avatarErwan Gouriou <erwan.gouriou@linaro.org>
parent 656cb012

stm32cube/stm32f2xx/README

+7 −0
Original line number Diff line number Diff line
@@ -48,3 +48,10 @@ Patch List: 
     ext/hal/st/stm32cube/stm32f2xx/drivers/src/stm32f2xx_ll_usb.c

    ST Bug Tracker ID: 34714



    *Use of (__packed uint32_t *) produces warning

      Using GNU 8.2.0, (__packed uint32_t *) generates warning.

      Replace with CMSIS macros __UNALIGNED_UINT32_READ and

      __UNALIGNED_UINT32_WRITE.

     Impacted files:

      drivers/include/stm32f2xx_ll_usb.c

     ST Bug tracker ID: 61324

stm32cube/stm32f2xx/drivers/src/stm32f2xx_ll_usb.c

+2 −2
Original line number Diff line number Diff line
@@ -768,7 +768,7 @@ HAL_StatusTypeDef USB_WritePacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *src, uin 
    count32b =  (len + 3U) / 4U;

    for (i = 0U; i < count32b; i++, src += 4U)

    {

      USBx_DFIFO(ch_ep_num) = *((__packed uint32_t *)src);

      USBx_DFIFO(ch_ep_num) = __UNALIGNED_UINT32_READ(src);

    }

  }

  return HAL_OK;
@@ -794,7 +794,7 @@ void *USB_ReadPacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *dest, uint16_t len) 


  for ( i = 0U; i < count32b; i++, dest += 4U )

  {

    *(__packed uint32_t *)dest = USBx_DFIFO(0U);

    __UNALIGNED_UINT32_WRITE(dest, USBx_DFIFO(0U));



  }

  return ((void *)dest);

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