linux-kernel - Re: [PATCH] iommu/arm-smmu: Don't bypass pinned stream mappings

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Date:   Wed, 10 Jun 2020 08:25:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jordan Crouse <jcrouse@...eaurora.org>,
        linux-arm-msm@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        Patrick Daly <pdaly@...eaurora.org>,
        linux-arm-kernel@...ts.infradead.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Joerg Roedel <joro@...tes.org>,
        Robin Murphy <robin.murphy@....com>,
        Will Deacon <will@...nel.org>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iommu/arm-smmu: Don't bypass pinned stream mappings

Hi Jordan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on iommu/next]
[also build test ERROR on v5.7 next-20200609]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Jordan-Crouse/iommu-arm-smmu-Don-t-bypass-pinned-stream-mappings/20200610-020733
base:   https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
config: x86_64-allyesconfig (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project bc2b70982be8f5250cd0082a7190f8b417bd4dfe)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/iommu/arm-smmu.c:1143:45: error: no member named 'pinned' in 'struct arm_smmu_s2cr'
if (type == S2CR_TYPE_BYPASS && s2cr[idx].pinned)
~~~~~~~~~ ^
1 error generated.

vim +1143 drivers/iommu/arm-smmu.c

  1122	
  1123	static int arm_smmu_domain_add_master(struct arm_smmu_domain *smmu_domain,
  1124					      struct arm_smmu_master_cfg *cfg,
  1125					      struct iommu_fwspec *fwspec)
  1126	{
  1127		struct arm_smmu_device *smmu = smmu_domain->smmu;
  1128		struct arm_smmu_s2cr *s2cr = smmu->s2crs;
  1129		u8 cbndx = smmu_domain->cfg.cbndx;
  1130		enum arm_smmu_s2cr_type type;
  1131		int i, idx;
  1132	
  1133		if (smmu_domain->stage == ARM_SMMU_DOMAIN_BYPASS)
  1134			type = S2CR_TYPE_BYPASS;
  1135		else
  1136			type = S2CR_TYPE_TRANS;
  1137	
  1138		for_each_cfg_sme(cfg, fwspec, i, idx) {
  1139			if (type == s2cr[idx].type && cbndx == s2cr[idx].cbndx)
  1140				continue;
  1141	
  1142			/* Don't bypasss pinned streams; leave them as they are */
> 1143			if (type == S2CR_TYPE_BYPASS && s2cr[idx].pinned)
  1144				continue;
  1145	
  1146			s2cr[idx].type = type;
  1147			s2cr[idx].privcfg = S2CR_PRIVCFG_DEFAULT;
  1148			s2cr[idx].cbndx = cbndx;
  1149			arm_smmu_write_s2cr(smmu, idx);
  1150		}
  1151		return 0;
  1152	}
  1153	

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

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