https://github.com/raspberrypi/linux/issues/3087

dwc_otg_compilation_warnings.txt

drivers/usb/host/dwc_otg/dwc_otg_hcd.c: In function ‘assign_and_init_hc’:
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1243:19: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   hc->xfer_buff = (uint8_t *) urb->dma + urb->actual_length;
                   ^
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1287:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     hc->xfer_buff = (uint8_t *) urb->setup_dma;
                     ^
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1318:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     hc->xfer_buff = (uint8_t *) hcd->status_buf_dma;
                     ^
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1346:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     hc->xfer_buff = (uint8_t *) urb->dma;
                     ^
drivers/usb/host/dwc_otg/dwc_otg_hcd.c: In function ‘fiq_fsm_setup_periodic_dma’:
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1527:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base;
          ^
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1528:24: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
   st->hcdma_copy.d32 = (dma_addr_t) blob->channel[hc->hc_num].index[0].buf;
                        ^
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1583:11: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
    blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base;
           ^
drivers/usb/host/dwc_otg/dwc_otg_hcd.c:1584:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    st->hcdma_copy.d32 = (dma_addr_t) blob->channel[hc->hc_num].index[0].buf;
                         ^
  CC [M]  drivers/usb/mon/mon_bin.o
  CC [M]  drivers/staging/rtl8188eu/core/rtw_recv.o
  CC [M]  drivers/usb/gadget/legacy/webcam.o
  AR      drivers/video/fbdev/built-in.a
  CC      drivers/video/display_timing.o
  CC [M]  drivers/usb/gadget/legacy/ncm.o
  CC [M]  drivers/usb/misc/appledisplay.o
  CC [M]  drivers/net/wireless/realtek/rtl8192cu/os_dep/linux/recv_linux.o
  CC      drivers/video/videomode.o
  CC      fs/fhandle.o
  CC      drivers/video/of_display_timing.o
  CC [M]  drivers/staging/rtl8712/rtl871x_ioctl_linux.o
  CC [M]  drivers/usb/gadget/legacy/acm_ms.o
  CC [M]  drivers/usb/gadget/udc/core.o
  CC      drivers/usb/host/xhci-dbg.o
  CC [M]  drivers/usb/gadget/usbstring.o
  CC      drivers/video/of_videomode.o
  CC [M]  drivers/usb/gadget/function/f_subset.o
  CC [M]  drivers/usb/misc/cypress_cy7c63.o
  CC      fs/xfs/xfs_bmap_item.o
  CC [M]  drivers/usb/gadget/legacy/tcm_usb_gadget.o
  LD [M]  drivers/usb/mon/usbmon.o
  CC      drivers/usb/phy/phy.o
  CC [M]  drivers/usb/gadget/function/f_rndis.o
  AR      drivers/video/built-in.a
  LD [M]  drivers/usb/gadget/legacy/g_zero.o
  CC [M]  drivers/usb/gadget/function/rndis.o
  CC      fs/iomap.o
  CC [M]  drivers/net/wireless/realtek/rtl8192cu/os_dep/linux/ioctl_cfg80211.o
  CC [M]  drivers/usb/gadget/udc/trace.o
  CC      drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.o
  CC [M]  drivers/usb/misc/cytherm.o
  CC [M]  drivers/staging/rtl8188eu/core/rtw_rf.o
  LD [M]  drivers/usb/gadget/legacy/g_audio.o
  LD [M]  drivers/usb/gadget/legacy/g_ether.o
  LD [M]  drivers/usb/gadget/legacy/gadgetfs.o
  LD [M]  drivers/usb/gadget/legacy/g_mass_storage.o
  LD [M]  drivers/usb/gadget/legacy/g_serial.o
  LD [M]  drivers/usb/gadget/legacy/g_printer.o
  LD [M]  drivers/usb/gadget/legacy/g_midi.o
  CC      drivers/usb/phy/of.o
  LD [M]  drivers/usb/gadget/legacy/g_cdc.o
  LD [M]  drivers/usb/gadget/legacy/g_hid.o
  LD [M]  drivers/usb/gadget/legacy/g_multi.o
  LD [M]  drivers/usb/gadget/legacy/g_webcam.o
  LD [M]  drivers/usb/gadget/legacy/g_ncm.o
  CC [M]  drivers/usb/gadget/config.o
  LD [M]  drivers/usb/gadget/legacy/g_acm_ms.o
  CC [M]  drivers/usb/gadget/epautoconf.o
  CC      drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.o
  CC [M]  drivers/usb/misc/emi26.o
  CC [M]  drivers/usb/gadget/composite.o
  AR      drivers/usb/phy/built-in.a
  CC [M]  drivers/usb/serial/usb-serial.o
  CC [M]  drivers/usb/serial/generic.o
  LD [M]  drivers/usb/gadget/udc/udc-core.o
  CC      drivers/usb/host/xhci-trace.o
  CC      fs/dcookies.o
  CC [M]  drivers/staging/rtl8188eu/core/rtw_security.o
  CC [M]  drivers/usb/gadget/function/f_mass_storage.o
  CC [M]  drivers/usb/serial/bus.o
  CC [M]  drivers/staging/rtl8712/rtl871x_ioctl_rtl.o
  CC [M]  drivers/usb/gadget/functions.o
In file included from drivers/usb/host/dwc_otg/dwc_otg_core_if.h:36:0,
                 from drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h:37,
                 from drivers/usb/host/dwc_otg/dwc_otg_hcd.h:39,
                 from drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c:35:
drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c: In function ‘handle_hc_ahberr_intr’:
drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c:1861:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     urb->buf, (void *)urb->dma);
               ^
drivers/usb/host/dwc_otg/../dwc_common_port/dwc_os.h:310:40: note: in definition of macro ‘DWC_ERROR’
      dwc_irq(), __func__, __LINE__, ## _args)
                                        ^~~~~
drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c:1863:24: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     urb->setup_packet, (void *)urb->setup_dma);
                        ^
drivers/usb/host/dwc_otg/../dwc_common_port/dwc_os.h:310:40: note: in definition of macro ‘DWC_ERROR’
      dwc_irq(), __func__, __LINE__, ## _args)
                                        ^~~~~
  CC      drivers/usb/storage/uas.o
  CC [M]  drivers/usb/misc/emi62.o
  CC      drivers/usb/storage/scsiglue.o
  CC [M]  fs/binfmt_misc.o
  CC [M]  drivers/net/wireless/realtek/rtl8192cu/os_dep/linux/rtw_android.o
  CC [M]  drivers/staging/rtl8188eu/core/rtw_sreset.o
  CC      fs/xfs/xfs_buf_item.o
  CC [M]  drivers/usb/serial/aircable.o
  CC [M]  drivers/usb/misc/ezusb.o
  CC [M]  drivers/staging/rtl8712/rtl871x_ioctl_set.o
  CC      drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.o
  CC      drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.o
  CC      drivers/usb/storage/protocol.o
  CC [M]  drivers/usb/serial/ark3116.o
  CC [M]  drivers/usb/misc/ftdi-elan.o
  CC      drivers/usb/storage/transport.o
  CC      fs/xfs/xfs_extfree_item.o
  CC [M]  drivers/staging/rtl8188eu/core/rtw_sta_mgt.o
  CC [M]  drivers/staging/rtl8188eu/core/rtw_wlan_util.o
  CC [M]  drivers/staging/speakup/speakup_soft.o
  CC [M]  drivers/staging/rtl8188eu/core/rtw_xmit.o
drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c: In function ‘init_non_isoc_dma_desc’:
drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c:623:20: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
    hc->xfer_buff = (uint8_t *)qtd->urb->dma + qtd->urb->actual_length;
                    ^
  LD [M]  drivers/net/wireless/realtek/rtl8192cu/8192cu.o
  CC [M]  drivers/staging/vc04_services/bcm2835-audio/bcm2835.o
  AR      drivers/net/wireless/built-in.a
  AR      drivers/net/built-in.a
  CC [M]  drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.o
  CC [M]  drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.o
  CC [M]  drivers/staging/rtl8712/rtl8712_led.o
  CC [M]  drivers/staging/vc04_services/bcm2835-camera/controls.o
  CC [M]  drivers/usb/gadget/function/storage_common.o
  CC      drivers/usb/host/dwc_otg/dwc_otg_adp.o
  CC [M]  drivers/usb/serial/belkin_sa.o
  CC [M]  drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.o
  CC [M]  drivers/staging/speakup/buffers.o
  CC      fs/xfs/xfs_icreate_item.o
  CC      drivers/usb/storage/usb.o
  CC      drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.o
  CC [M]  drivers/staging/rtl8188eu/hal/fw.o
  CC [M]  drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.o
  CC [M]  drivers/usb/gadget/function/f_fs.o
  CC [M]  drivers/staging/speakup/devsynth.o
  CC [M]  drivers/usb/serial/ch341.o
  AS      drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.o
  CC      drivers/usb/storage/initializers.o
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c: In function ‘fiq_increment_dma_buf’:
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c:243:30: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base;
                              ^
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c:252:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  hcdma.d32 = (dma_addr_t) &blob->channel[n].index[i].buf[0];
              ^
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c: In function ‘fiq_iso_out_advance’:
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c:292:30: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base;
                              ^
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c:304:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  hcdma.d32 = (dma_addr_t) blob->channel[n].index[i].buf;
              ^