diff options
| author | Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> | 2019-11-21 22:15:23 +0100 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@gmail.com> | 2019-11-22 01:25:40 +0100 |
| commit | 7dc0ac6015718f5fb66bb79bf53df19f64fbfeee (patch) | |
| tree | 90dc7aba5f52d0c02a9a7d2b79a40310639135b6 | |
| parent | 616ebd8b9cb455c5949bd94c47283835eba1954a (diff) | |
usb: dwc2: fix possible alignment issues
Since upgrading to gcc9, warnings are issued:
"taking address of packed member of ‘...’ may result in an unaligned
pointer value"
Fix this by converting dwc2_fifo_read to use unaligned access since packed
structures may be on an unaligned address, depending on USB hardware.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
| -rw-r--r-- | drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c index 7eb632d3b1..dba221dad0 100644 --- a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c +++ b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c @@ -731,7 +731,7 @@ static int write_fifo_ep0(struct dwc2_ep *ep, struct dwc2_request *req) return 0; } -static int dwc2_fifo_read(struct dwc2_ep *ep, u32 *cp, int max) +static int dwc2_fifo_read(struct dwc2_ep *ep, void *cp, int max) { invalidate_dcache_range((unsigned long)cp, (unsigned long)cp + ROUND(max, CONFIG_SYS_CACHELINE_SIZE)); @@ -1285,7 +1285,7 @@ static void dwc2_ep0_setup(struct dwc2_udc *dev) nuke(ep, -EPROTO); /* read control req from fifo (8 bytes) */ - dwc2_fifo_read(ep, (u32 *)usb_ctrl, 8); + dwc2_fifo_read(ep, usb_ctrl, 8); debug_cond(DEBUG_SETUP != 0, "%s: bRequestType = 0x%x(%s), bRequest = 0x%x" |