tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   6f216714a6906d6d5d0654313d9f9a47613bb473
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to 
define address spaces
date:   2 weeks ago
config: sparc-randconfig-s032-20200703 (attached as .config)
compiler: sparc-linux-gcc (GCC) 9.3.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.2-3-gfa153962-dirty
        git checkout 670d0a4b10704667765f7d18f7592993d02783aa
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sparc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


sparse warnings: (new ones prefixed by >>)

>> arch/sparc/include/asm/floppy_32.h:319:17: sparse: sparse: incorrect type in 
>> assignment (different address spaces) @@     expected struct 
>> sun_flpy_controller *static [toplevel] sun_fdc @@     got void [noderef] 
>> __iomem * @@
   arch/sparc/include/asm/floppy_32.h:319:17: sparse:     expected struct 
sun_flpy_controller *static [toplevel] sun_fdc
>> arch/sparc/include/asm/floppy_32.h:319:17: sparse:     got void [noderef] 
>> __iomem *

vim +319 arch/sparc/include/asm/floppy_32.h

f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
274  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
275  static int sun_floppy_init(void)
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
276  {
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
277       struct platform_device *op;
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
278       struct device_node *dp;
144e988dd217d8 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2012-05-12  
279       struct resource r;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
280       char state[128];
144e988dd217d8 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2012-05-12  
281       phandle fd_node;
144e988dd217d8 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2012-05-12  
282       phandle tnode;
8d1255627d4ce9 arch/sparc/include/asm/floppy_32.h Andres Salomon  2010-10-08  
283       int num_regs;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
284  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
285       use_virtual_dma = 1;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
286  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
287       /* Forget it if we aren't on a machine that could possibly
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
288        * ever have a floppy drive.
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
289        */
58fa4dcbc419c4 arch/sparc/include/asm/floppy_32.h David S. Miller 2012-05-11  
290       if (sparc_cpu_model != sun4m) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
291               /* We certainly don't have a floppy controller. */
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
292               goto no_sun_fdc;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
293       }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
294       /* Well, try to find one. */
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
295       tnode = prom_getchild(prom_root_node);
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
296       fd_node = prom_searchsiblings(tnode, "obio");
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
297       if (fd_node != 0) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
298               tnode = prom_getchild(fd_node);
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
299               fd_node = prom_searchsiblings(tnode, "SUNW,fdtwo");
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
300       } else {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
301               fd_node = prom_searchsiblings(tnode, "fd");
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
302       }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
303       if (fd_node == 0) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
304               goto no_sun_fdc;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
305       }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
306  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
307       /* The sun4m lets us know if the controller is actually usable. */
144e988dd217d8 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2012-05-12  
308       if (prom_getproperty(fd_node, "status", state, sizeof(state)) != -1) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
309               if(!strcmp(state, "disabled")) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
310                       goto no_sun_fdc;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
311               }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
312       }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
313       num_regs = prom_getproperty(fd_node, "reg", (char *) fd_regs, 
sizeof(fd_regs));
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
314       num_regs = (num_regs / sizeof(fd_regs[0]));
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
315       prom_apply_obio_ranges(fd_regs, num_regs);
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
316       memset(&r, 0, sizeof(r));
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
317       r.flags = fd_regs[0].which_io;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
318       r.start = fd_regs[0].phys_addr;
144e988dd217d8 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2012-05-12 
@319       sun_fdc = of_ioremap(&r, 0, fd_regs[0].reg_size, "floppy");
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
320  
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
321       /* Look up irq in platform_device.
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
322        * We try "SUNW,fdtwo" and "fd"
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
323        */
918f832290f01b arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2012-05-12  
324       op = NULL;
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
325       for_each_node_by_name(dp, "SUNW,fdtwo") {
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
326               op = of_find_device_by_node(dp);
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
327               if (op)
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
328                       break;
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
329       }
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
330       if (!op) {
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
331               for_each_node_by_name(dp, "fd") {
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
332                       op = of_find_device_by_node(dp);
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
333                       if (op)
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
334                               break;
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
335               }
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
336       }
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
337       if (!op)
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
338               goto no_sun_fdc;
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
339  
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
340       FLOPPY_IRQ = op->archdata.irqs[0];
6baa9b20a68a88 arch/sparc/include/asm/floppy_32.h Sam Ravnborg    2011-04-18  
341  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
342       /* Last minute sanity check... */
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
343       if (sun_fdc->status_82072 == 0xff) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
344               sun_fdc = NULL;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
345               goto no_sun_fdc;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
346       }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
347  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
348       sun_fdops.fd_inb = sun_82077_fd_inb;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
349       sun_fdops.fd_outb = sun_82077_fd_outb;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
350       fdc_status = &sun_fdc->status_82077;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
351  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
352       if (sun_fdc->dor_82077 == 0x80) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
353               sun_fdc->dor_82077 = 0x02;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
354               if (sun_fdc->dor_82077 == 0x80) {
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
355                       sun_fdops.fd_inb = sun_82072_fd_inb;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
356                       sun_fdops.fd_outb = sun_82072_fd_outb;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
357                       fdc_status = &sun_fdc->status_82072;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
358               }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
359       }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
360  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
361       /* Success... */
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
362       allowed_drive_mask = 0x01;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
363       return (int) sun_fdc;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
364  
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
365  no_sun_fdc:
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
366       return -1;
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
367  }
f5e706ad886b6a include/asm-sparc/floppy_32.h      Sam Ravnborg    2008-07-17  
368  

:::::: The code at line 319 was first introduced by commit
:::::: 144e988dd217d8db1c027ef7f1b5a4061a18c874 sparc32: code cleanup in floppy 
glue

:::::: TO: Sam Ravnborg <[email protected]>
:::::: CC: David S. Miller <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

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