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authorSimon Goldschmidt <simon.k.r.goldschmidt@gmail.com>2019-11-21 22:15:23 +0100
committerMarek Vasut <marek.vasut+renesas@gmail.com>2019-11-22 01:25:40 +0100
commit7dc0ac6015718f5fb66bb79bf53df19f64fbfeee (patch)
tree90dc7aba5f52d0c02a9a7d2b79a40310639135b6 /drivers
parent616ebd8b9cb455c5949bd94c47283835eba1954a (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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c4
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"