Messages in this thread | | | Date | Tue, 27 Apr 2021 15:25:25 +0800 | From | kernel test robot <> | Subject | drivers/remoteproc/qcom_common.c:126:27: 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: 4a0225c3d208cfa6e4550f2210ffd9114a952a81 commit: 8ed8485c4f056d488d17a2b56581c86aeb42955d remoteproc: qcom: Add capability to collect minidumps date: 5 months ago config: arm64-randconfig-s031-20210427 (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: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8ed8485c4f056d488d17a2b56581c86aeb42955d git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8ed8485c4f056d488d17a2b56581c86aeb42955d # 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__' W=1 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/remoteproc/qcom_common.c:126:27: sparse: sparse: restricted __le32 degrades to integer >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast to restricted __le32 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast from restricted __le64 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast to restricted __le32 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast from restricted __le64 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast to restricted __le32 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast from restricted __le64 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast to restricted __le32 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast from restricted __le64 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast to restricted __le32 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast from restricted __le64 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast to restricted __le32 >> drivers/remoteproc/qcom_common.c:133:32: sparse: sparse: cast from restricted __le64
vim +126 drivers/remoteproc/qcom_common.c
103 104 static int qcom_add_minidump_segments(struct rproc *rproc, struct minidump_subsystem *subsystem) 105 { 106 struct minidump_region __iomem *ptr; 107 struct minidump_region region; 108 int seg_cnt, i; 109 dma_addr_t da; 110 size_t size; 111 char *name; 112 113 if (WARN_ON(!list_empty(&rproc->dump_segments))) { 114 dev_err(&rproc->dev, "dump segment list already populated\n"); 115 return -EUCLEAN; 116 } 117 118 seg_cnt = le32_to_cpu(subsystem->region_count); 119 ptr = ioremap((unsigned long)le64_to_cpu(subsystem->regions_baseptr), 120 seg_cnt * sizeof(struct minidump_region)); 121 if (!ptr) 122 return -EFAULT; 123 124 for (i = 0; i < seg_cnt; i++) { 125 memcpy_fromio(®ion, ptr + i, sizeof(region)); > 126 if (region.valid == MD_REGION_VALID) { 127 name = kstrdup(region.name, GFP_KERNEL); 128 if (!name) { 129 iounmap(ptr); 130 return -ENOMEM; 131 } 132 da = le64_to_cpu(region.address); > 133 size = le32_to_cpu(region.size); 134 rproc_coredump_add_custom_segment(rproc, da, size, NULL, name); 135 } 136 } 137 138 iounmap(ptr); 139 return 0; 140 } 141
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