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Message-ID: <202003190735.DDDoehHD%lkp@intel.com>
Date:   Thu, 19 Mar 2020 07:33:48 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Li Yang <leoyang.li@....com>, Timur Tabi <timur@...nel.org>
Subject: drivers/usb/gadget/udc/fsl_qe_udc.c:836:13: warning: cast from
 pointer to integer of different size

Hi Rasmus,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5076190daded2197f62fe92cf69674488be44175
commit: 5a35435ef4e6e4bd2aabd6706b146b298a9cffe5 soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE
date:   3 months ago
config: powerpc-randconfig-a001-20200319 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 5a35435ef4e6e4bd2aabd6706b146b298a9cffe5
        # save the attached .config to linux build tree
        GCC_VERSION=9.2.0 make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   drivers/usb/gadget/udc/fsl_qe_udc.c: In function 'qe_ep0_rx':
>> drivers/usb/gadget/udc/fsl_qe_udc.c:836:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     836 |     vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
         |             ^
   In file included from drivers/usb/gadget/udc/fsl_qe_udc.c:41:
>> drivers/usb/gadget/udc/fsl_qe_udc.c:837:28: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     837 |     frame_set_data(pframe, (u8 *)vaddr);
         |                            ^
   drivers/usb/gadget/udc/fsl_qe_udc.h:229:47: note: in definition of macro 'frame_set_data'
     229 | #define frame_set_data(frm, dat) (frm->data = dat)
         |                                               ^~~
   drivers/usb/gadget/udc/fsl_qe_udc.c: In function 'ep_rx_tasklet':
   drivers/usb/gadget/udc/fsl_qe_udc.c:964:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     964 |     vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
         |             ^
   In file included from drivers/usb/gadget/udc/fsl_qe_udc.c:41:
   drivers/usb/gadget/udc/fsl_qe_udc.c:965:28: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     965 |     frame_set_data(pframe, (u8 *)vaddr);
         |                            ^
   drivers/usb/gadget/udc/fsl_qe_udc.h:229:47: note: in definition of macro 'frame_set_data'
     229 | #define frame_set_data(frm, dat) (frm->data = dat)
         |                                               ^~~
   drivers/usb/gadget/udc/fsl_qe_udc.c: In function 'ep_req_rx':
   drivers/usb/gadget/udc/fsl_qe_udc.c:1490:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1490 |    vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
         |            ^
   In file included from drivers/usb/gadget/udc/fsl_qe_udc.c:41:
   drivers/usb/gadget/udc/fsl_qe_udc.c:1491:27: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
    1491 |    frame_set_data(pframe, (u8 *)vaddr);
         |                           ^
   drivers/usb/gadget/udc/fsl_qe_udc.h:229:47: note: in definition of macro 'frame_set_data'
     229 | #define frame_set_data(frm, dat) (frm->data = dat)
         |                                               ^~~
   drivers/usb/gadget/udc/fsl_qe_udc.c: In function 'qe_ep_init':
   drivers/usb/gadget/udc/fsl_qe_udc.c:542:37: warning: this statement may fall through [-Wimplicit-fallthrough=]
     542 |    if ((max == 128) || (max == 256) || (max == 512))
         |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
   drivers/usb/gadget/udc/fsl_qe_udc.c:544:4: note: here
     544 |    default:
         |    ^~~~~~~
   drivers/usb/gadget/udc/fsl_qe_udc.c:563:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
     563 |     if (max <= 1024)
         |        ^
   drivers/usb/gadget/udc/fsl_qe_udc.c:565:4: note: here
     565 |    case USB_SPEED_FULL:
         |    ^~~~
   drivers/usb/gadget/udc/fsl_qe_udc.c:566:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
     566 |     if (max <= 64)
         |        ^
   drivers/usb/gadget/udc/fsl_qe_udc.c:568:4: note: here
     568 |    default:
         |    ^~~~~~~
   drivers/usb/gadget/udc/fsl_qe_udc.c:580:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
     580 |     if (max <= 1024)
         |        ^
   drivers/usb/gadget/udc/fsl_qe_udc.c:582:4: note: here
     582 |    case USB_SPEED_FULL:
         |    ^~~~
   drivers/usb/gadget/udc/fsl_qe_udc.c:596:5: warning: this statement may fall through [-Wimplicit-fallthrough=]
     596 |     switch (max) {
         |     ^~~~~~
   drivers/usb/gadget/udc/fsl_qe_udc.c:608:4: note: here
     608 |    case USB_SPEED_LOW:
         |    ^~~~

vim +836 drivers/usb/gadget/udc/fsl_qe_udc.c

3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  807  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  808  static int qe_ep0_rx(struct qe_udc *udc)
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  809  {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  810  	struct qe_ep *ep = &udc->eps[0];
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  811  	struct qe_frame *pframe;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  812  	struct qe_bd __iomem *bd;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  813  	u32 bdstatus, length;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  814  	u32 vaddr;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  815  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  816  	pframe = ep->rxframe;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  817  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  818  	if (ep->dir == USB_DIR_IN) {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  819  		dev_err(udc->dev, "ep0 not a control endpoint\n");
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  820  		return -EINVAL;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  821  	}
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  822  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  823  	bd = ep->n_rxbd;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  824  	bdstatus = in_be32((u32 __iomem *)bd);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  825  	length = bdstatus & BD_LENGTH_MASK;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  826  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  827  	while (!(bdstatus & R_E) && length) {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  828  		if ((bdstatus & R_F) && (bdstatus & R_L)
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  829  			&& !(bdstatus & R_ERROR)) {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  830  			if (length == USB_CRC_SIZE) {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  831  				udc->ep0_state = WAIT_FOR_SETUP;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  832  				dev_vdbg(udc->dev,
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  833  					"receive a ZLP in status phase\n");
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  834  			} else {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  835  				qe_frame_clean(pframe);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02 @836  				vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02 @837  				frame_set_data(pframe, (u8 *)vaddr);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  838  				frame_set_length(pframe,
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  839  						(length - USB_CRC_SIZE));
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  840  				frame_set_status(pframe, FRAME_OK);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  841  				switch (bdstatus & R_PID) {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  842  				case R_PID_SETUP:
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  843  					frame_set_info(pframe, PID_SETUP);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  844  					break;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  845  				case R_PID_DATA1:
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  846  					frame_set_info(pframe, PID_DATA1);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  847  					break;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  848  				default:
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  849  					frame_set_info(pframe, PID_DATA0);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  850  					break;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  851  				}
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  852  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  853  				if ((bdstatus & R_PID) == R_PID_SETUP)
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  854  					ep0_setup_handle(udc);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  855  				else
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  856  					qe_ep_rxframe_handle(ep);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  857  			}
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  858  		} else {
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  859  			dev_err(udc->dev, "The receive frame with error!\n");
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  860  		}
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  861  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  862  		/* note: don't clear the rxbd's buffer address */
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  863  		recycle_one_rxbd(ep);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  864  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  865  		/* Get next BD */
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  866  		if (bdstatus & R_W)
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  867  			bd = ep->rxbase;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  868  		else
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  869  			bd++;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  870  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  871  		bdstatus = in_be32((u32 __iomem *)bd);
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  872  		length = bdstatus & BD_LENGTH_MASK;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  873  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  874  	}
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  875  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  876  	ep->n_rxbd = bd;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  877  
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  878  	return 0;
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  879  }
3948f0e0c999a6 drivers/usb/gadget/fsl_qe_udc.c Li Yang 2008-09-02  880  

:::::: The code at line 836 was first introduced by commit
:::::: 3948f0e0c999a6201e9898bb8fbe3c6cc1199276 usb: add Freescale QE/CPM USB peripheral controller driver

:::::: TO: Li Yang <leoli@...escale.com>
:::::: CC: Greg Kroah-Hartman <gregkh@...e.de>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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