drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c:123:39: sparse: sparse: restricted __le32 degrades to integer

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   92ed301919932f777713b9172e525674157e983d
commit: 93c7f4d357de68f1e3a998b2fc775466d75c4c07 crypto: sun8i-ce - enable working on big endian
date:   8 months ago
config: arm64-randconfig-s031-20200728 (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: v0.6.2-94-geb6779f6-dirty
        git checkout 93c7f4d357de68f1e3a998b2fc775466d75c4c07
        # 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@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c:123:39: sparse: sparse: restricted __le32 degrades to integer

vim +123 drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c

06f751b613296c Corentin Labbe 2019-10-23  109  
06f751b613296c Corentin Labbe 2019-10-23  110  	mutex_lock(&ce->mlock);
06f751b613296c Corentin Labbe 2019-10-23  111  
06f751b613296c Corentin Labbe 2019-10-23  112  	v = readl(ce->base + CE_ICR);
06f751b613296c Corentin Labbe 2019-10-23  113  	v |= 1 << flow;
06f751b613296c Corentin Labbe 2019-10-23  114  	writel(v, ce->base + CE_ICR);
06f751b613296c Corentin Labbe 2019-10-23  115  
06f751b613296c Corentin Labbe 2019-10-23  116  	reinit_completion(&ce->chanlist[flow].complete);
06f751b613296c Corentin Labbe 2019-10-23  117  	writel(ce->chanlist[flow].t_phy, ce->base + CE_TDQ);
06f751b613296c Corentin Labbe 2019-10-23  118  
06f751b613296c Corentin Labbe 2019-10-23  119  	ce->chanlist[flow].status = 0;
06f751b613296c Corentin Labbe 2019-10-23  120  	/* Be sure all data is written before enabling the task */
06f751b613296c Corentin Labbe 2019-10-23  121  	wmb();
06f751b613296c Corentin Labbe 2019-10-23  122  
06f751b613296c Corentin Labbe 2019-10-23 @123  	v = 1 | (ce->chanlist[flow].tl->t_common_ctl & 0x7F) << 8;
06f751b613296c Corentin Labbe 2019-10-23  124  	writel(v, ce->base + CE_TLR);
06f751b613296c Corentin Labbe 2019-10-23  125  	mutex_unlock(&ce->mlock);
06f751b613296c Corentin Labbe 2019-10-23  126  
06f751b613296c Corentin Labbe 2019-10-23  127  	wait_for_completion_interruptible_timeout(&ce->chanlist[flow].complete,
06f751b613296c Corentin Labbe 2019-10-23  128  			msecs_to_jiffies(ce->chanlist[flow].timeout));
06f751b613296c Corentin Labbe 2019-10-23  129  
06f751b613296c Corentin Labbe 2019-10-23  130  	if (ce->chanlist[flow].status == 0) {
06f751b613296c Corentin Labbe 2019-10-23  131  		dev_err(ce->dev, "DMA timeout for %s\n", name);
06f751b613296c Corentin Labbe 2019-10-23  132  		err = -EFAULT;
06f751b613296c Corentin Labbe 2019-10-23  133  	}
06f751b613296c Corentin Labbe 2019-10-23  134  	/* No need to lock for this read, the channel is locked so
06f751b613296c Corentin Labbe 2019-10-23  135  	 * nothing could modify the error value for this channel
06f751b613296c Corentin Labbe 2019-10-23  136  	 */
06f751b613296c Corentin Labbe 2019-10-23  137  	v = readl(ce->base + CE_ESR);
06f751b613296c Corentin Labbe 2019-10-23  138  	if (v) {
06f751b613296c Corentin Labbe 2019-10-23  139  		v >>= (flow * 4);
06f751b613296c Corentin Labbe 2019-10-23  140  		v &= 0xFF;
06f751b613296c Corentin Labbe 2019-10-23  141  		if (v) {
06f751b613296c Corentin Labbe 2019-10-23  142  			dev_err(ce->dev, "CE ERROR: %x for flow %x\n", v, flow);
06f751b613296c Corentin Labbe 2019-10-23  143  			err = -EFAULT;
06f751b613296c Corentin Labbe 2019-10-23  144  		}
06f751b613296c Corentin Labbe 2019-10-23  145  		if (v & CE_ERR_ALGO_NOTSUP)
06f751b613296c Corentin Labbe 2019-10-23  146  			dev_err(ce->dev, "CE ERROR: algorithm not supported\n");
06f751b613296c Corentin Labbe 2019-10-23  147  		if (v & CE_ERR_DATALEN)
06f751b613296c Corentin Labbe 2019-10-23  148  			dev_err(ce->dev, "CE ERROR: data length error\n");
06f751b613296c Corentin Labbe 2019-10-23  149  		if (v & CE_ERR_KEYSRAM)
06f751b613296c Corentin Labbe 2019-10-23  150  			dev_err(ce->dev, "CE ERROR: keysram access error for AES\n");
06f751b613296c Corentin Labbe 2019-10-23  151  		if (v & CE_ERR_ADDR_INVALID)
06f751b613296c Corentin Labbe 2019-10-23  152  			dev_err(ce->dev, "CE ERROR: address invalid\n");
06f751b613296c Corentin Labbe 2019-10-23  153  		}
06f751b613296c Corentin Labbe 2019-10-23  154  
06f751b613296c Corentin Labbe 2019-10-23  155  	return err;
06f751b613296c Corentin Labbe 2019-10-23  156  }
06f751b613296c Corentin Labbe 2019-10-23  157  

:::::: The code at line 123 was first introduced by commit
:::::: 06f751b613296cc34b86fc83fccaf30d646eb8bc crypto: allwinner - Add sun8i-ce Crypto Engine

:::::: TO: Corentin Labbe <clabbe.montjoie@gmail.com>
:::::: CC: Herbert Xu <herbert@gondor.apana.org.au>

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

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