linux-kernel - drivers/firmware/tegra/bpmp-tegra210.c:148:11: sparse: sparse: incorrect type in assignment (different address spaces)

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Message-ID: <202008051554.jiEW8lFN%lkp@intel.com>
Date:   Wed, 5 Aug 2020 15:52:58 +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: drivers/firmware/tegra/bpmp-tegra210.c:148:11: sparse: sparse:
 incorrect type in assignment (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   4da9f3302615f4191814f826054846bf843e24fa
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   7 weeks ago
config: arm64-randconfig-s031-20200805 (attached as .config)
compiler: aarch64-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: v0.6.2-117-g8c7aee71-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=arm64 

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 >>)

>> drivers/firmware/tegra/bpmp-tegra210.c:148:11: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *p @@     got void [noderef] __iomem * @@
   drivers/firmware/tegra/bpmp-tegra210.c:148:11: sparse:     expected void *p
>> drivers/firmware/tegra/bpmp-tegra210.c:148:11: sparse:     got void [noderef] __iomem *

vim +148 drivers/firmware/tegra/bpmp-tegra210.c

139251fc220830c Timo Alho 2019-01-24  134  
139251fc220830c Timo Alho 2019-01-24  135  static int tegra210_bpmp_channel_init(struct tegra_bpmp_channel *channel,
139251fc220830c Timo Alho 2019-01-24  136  				      struct tegra_bpmp *bpmp,
139251fc220830c Timo Alho 2019-01-24  137  				      unsigned int index)
139251fc220830c Timo Alho 2019-01-24  138  {
139251fc220830c Timo Alho 2019-01-24  139  	struct tegra210_bpmp *priv = bpmp->priv;
139251fc220830c Timo Alho 2019-01-24  140  	u32 address;
139251fc220830c Timo Alho 2019-01-24  141  	void *p;
139251fc220830c Timo Alho 2019-01-24  142  
139251fc220830c Timo Alho 2019-01-24  143  	/* Retrieve channel base address from BPMP */
139251fc220830c Timo Alho 2019-01-24  144  	writel(index << TRIGGER_ID_SHIFT | TRIGGER_CMD_GET,
139251fc220830c Timo Alho 2019-01-24  145  	       priv->atomics + TRIGGER_OFFSET);
139251fc220830c Timo Alho 2019-01-24  146  	address = readl(priv->atomics + RESULT_OFFSET(index));
139251fc220830c Timo Alho 2019-01-24  147  
139251fc220830c Timo Alho 2019-01-24 @148  	p = devm_ioremap(bpmp->dev, address, 0x80);
139251fc220830c Timo Alho 2019-01-24  149  	if (!p)
139251fc220830c Timo Alho 2019-01-24  150  		return -ENOMEM;
139251fc220830c Timo Alho 2019-01-24  151  
139251fc220830c Timo Alho 2019-01-24  152  	channel->ib = p;
139251fc220830c Timo Alho 2019-01-24  153  	channel->ob = p;
139251fc220830c Timo Alho 2019-01-24  154  	channel->index = index;
139251fc220830c Timo Alho 2019-01-24  155  	init_completion(&channel->completion);
139251fc220830c Timo Alho 2019-01-24  156  	channel->bpmp = bpmp;
139251fc220830c Timo Alho 2019-01-24  157  
139251fc220830c Timo Alho 2019-01-24  158  	return 0;
139251fc220830c Timo Alho 2019-01-24  159  }
139251fc220830c Timo Alho 2019-01-24  160  

:::::: The code at line 148 was first introduced by commit
:::::: 139251fc220830cc49b71331d281a8ad03a08ab7 firmware: tegra: add bpmp driver for Tegra210

:::::: TO: Timo Alho <talho@...dia.com>
:::::: CC: Thierry Reding <treding@...dia.com>

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

Download attachment ".config.gz" of type "application/gzip" (36216 bytes)