Messages in this thread | | | Date | Tue, 28 Jul 2020 13:10:13 +0800 | From | kernel test robot <> | Subject | drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c:123:39: sparse: sparse: restricted __le32 degrades to integer |
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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>
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