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Date:   Sat, 4 Jul 2020 14:34:40 +0800
From:   kernel test robot <lkp@...el.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: arch/sparc/include/asm/floppy_32.h:319:17: sparse: sparse: incorrect
 type in assignment (different address spaces)

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 <lkp@...el.com>


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 <sam@...nborg.org>
:::::: CC: David S. Miller <davem@...emloft.net>

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

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