Re: [PATCH v11 6/7] soc: qcom: ice: add HWKM support to the ICE driver

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

Hi Eric,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 2014c95afecee3e76ca4a56956a936e23283f05b]

url:    https://github.com/intel-lab-lkp/linux/commits/Eric-Biggers/blk-crypto-add-basic-hardware-wrapped-key-support/20250204-140702
base:   2014c95afecee3e76ca4a56956a936e23283f05b
patch link:    https://lore.kernel.org/r/20250204060041.409950-7-ebiggers%40kernel.org
patch subject: [PATCH v11 6/7] soc: qcom: ice: add HWKM support to the ICE driver
config: openrisc-randconfig-r111-20250208 (https://download.01.org/0day-ci/archive/20250209/202502090302.znlTCbTa-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 14.2.0
reproduce: (https://download.01.org/0day-ci/archive/20250209/202502090302.znlTCbTa-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502090302.znlTCbTa-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/soc/qcom/ice.c:337:9: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] regval @@
   drivers/soc/qcom/ice.c:337:9: sparse:     expected unsigned int [usertype] value
   drivers/soc/qcom/ice.c:337:9: sparse:     got restricted __le32 [usertype] regval

vim +337 drivers/soc/qcom/ice.c

   302	
   303	static int qcom_ice_program_wrapped_key(struct qcom_ice *ice, unsigned int slot,
   304						const struct blk_crypto_key *bkey)
   305	{
   306		struct device *dev = ice->dev;
   307		union crypto_cfg cfg = {
   308			.dusize = bkey->crypto_cfg.data_unit_size / 512,
   309			.capidx = QCOM_SCM_ICE_CIPHER_AES_256_XTS,
   310			.cfge = QCOM_ICE_HWKM_CFG_ENABLE_VAL,
   311		};
   312		int err;
   313	
   314		if (!ice->use_hwkm) {
   315			dev_err_ratelimited(dev, "Got wrapped key when not using HWKM\n");
   316			return -EINVAL;
   317		}
   318		if (!ice->hwkm_init_complete) {
   319			dev_err_ratelimited(dev, "HWKM not yet initialized\n");
   320			return -EINVAL;
   321		}
   322	
   323		/* Clear CFGE before programming the key. */
   324		qcom_ice_writel(ice, 0x0, QCOM_ICE_REG_CRYPTOCFG(slot));
   325	
   326		/* Call into TrustZone to program the wrapped key using HWKM. */
   327		err = qcom_scm_ice_set_key(translate_hwkm_slot(ice, slot), bkey->bytes,
   328					   bkey->size, cfg.capidx, cfg.dusize);
   329		if (err) {
   330			dev_err_ratelimited(dev,
   331					    "qcom_scm_ice_set_key failed; err=%d, slot=%u\n",
   332					    err, slot);
   333			return err;
   334		}
   335	
   336		/* Set CFGE after programming the key. */
 > 337		qcom_ice_writel(ice, cfg.regval, QCOM_ICE_REG_CRYPTOCFG(slot));
   338		return 0;
   339	}
   340	

-- 
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