[kbuild-all] drivers/dma/bestcomm/bestcomm.c:98:30: sparse: sparse: incorrect type in argument 1 (different address spaces)

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b81b1829e7e39f6cebdf6e4d5484eacbceda8554 commit: adec566b05288f2787a1f88dbaf77ed8b0c644fa dmaengine: bestcomm: fix system boot lockups date: 4 months ago config: powerpc-randconfig-s032-20220213 (https://download.01.org/0day-ci/archive/20220213/202202132337.6w53hDke-lk...) compiler: powerpc-linux-gcc (GCC) 11.2.0 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: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout adec566b05288f2787a1f88dbaf77ed8b0c644fa # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/dma/bestcomm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/dma/bestcomm/bestcomm.c:98:30: sparse: expected void volatile [noderef] __iomem *a drivers/dma/bestcomm/bestcomm.c:98:30: sparse: got struct bcom_bd *bd drivers/dma/bestcomm/bestcomm.c:189:19: sparse: expected void volatile [noderef] __iomem *a drivers/dma/bestcomm/bestcomm.c:189:19: sparse: got unsigned int [usertype] *[assigned] var drivers/dma/bestcomm/bestcomm.c:190:19: sparse: expected void volatile [noderef] __iomem *a drivers/dma/bestcomm/bestcomm.c:190:19: sparse: got unsigned int [usertype] *[assigned] inc drivers/dma/bestcomm/bestcomm.c:196:21: sparse: expected void volatile [noderef] __iomem *d drivers/dma/bestcomm/bestcomm.c:196:21: sparse: got unsigned int [usertype] *[assigned] desc drivers/dma/bestcomm/bestcomm.c:197:25: sparse: expected void volatile [noderef] __iomem *d drivers/dma/bestcomm/bestcomm.c:197:25: sparse: got unsigned int [usertype] * drivers/dma/bestcomm/bestcomm.c:198:21: sparse: expected void volatile [noderef] __iomem *d drivers/dma/bestcomm/bestcomm.c:198:21: sparse: got unsigned int [usertype] *[assigned] inc drivers/dma/bestcomm/bestcomm.c:305:27: sparse: expected void volatile [noderef] __iomem *a drivers/dma/bestcomm/bestcomm.c:305:27: sparse: got struct bcom_tdt *tdt drivers/dma/bestcomm/bestcomm.c:306:27: sparse: expected void volatile [noderef] __iomem *a drivers/dma/bestcomm/bestcomm.c:306:27: sparse: got unsigned int [usertype] *ctx drivers/dma/bestcomm/bestcomm.c:307:27: sparse: expected void volatile [noderef] __iomem *a drivers/dma/bestcomm/bestcomm.c:307:27: sparse: got unsigned int [usertype] *var drivers/dma/bestcomm/bestcomm.c:308:27: sparse: expected void volatile [noderef] __iomem *a drivers/dma/bestcomm/bestcomm.c:308:27: sparse: got unsigned int [usertype] *fdt drivers/dma/bestcomm/bestcomm.c:311:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *d @@ got unsigned int [usertype] * @@ drivers/dma/bestcomm/bestcomm.c:311:35: sparse: expected void volatile [noderef] __iomem *d drivers/dma/bestcomm/bestcomm.c:311:35: sparse: got unsigned int [usertype] * vim +98 drivers/dma/bestcomm/bestcomm.c 48 49 struct bcom_task * 50 bcom_task_alloc(int bd_count, int bd_size, int priv_size) 51 { 52 int i, tasknum = -1; 53 struct bcom_task *tsk; 54 55 /* Don't try to do anything if bestcomm init failed */ 56 if (!bcom_eng) 57 return NULL; 58 59 /* Get and reserve a task num */ 60 spin_lock(&bcom_eng->lock); 61 62 for (i=0; i<BCOM_MAX_TASKS; i++) 63 if (!bcom_eng->tdt[i].stop) { /* we use stop as a marker */ 64 bcom_eng->tdt[i].stop = 0xfffffffful; /* dummy addr */ 65 tasknum = i; 66 break; 67 } 68 69 spin_unlock(&bcom_eng->lock); 70 71 if (tasknum < 0) 72 return NULL; 73 74 /* Allocate our structure */ 75 tsk = kzalloc(sizeof(struct bcom_task) + priv_size, GFP_KERNEL); 76 if (!tsk) 77 goto error; 78 79 tsk->tasknum = tasknum; 80 if (priv_size) 81 tsk->priv = (void*)tsk + sizeof(struct bcom_task); 82 83 /* Get IRQ of that task */ 84 tsk->irq = irq_of_parse_and_map(bcom_eng->ofnode, tsk->tasknum); 85 if (!tsk->irq) 86 goto error; 87 88 /* Init the BDs, if needed */ 89 if (bd_count) { 90 tsk->cookie = kmalloc_array(bd_count, sizeof(void *), 91 GFP_KERNEL); 92 if (!tsk->cookie) 93 goto error; 94 95 tsk->bd = bcom_sram_alloc(bd_count * bd_size, 4, &tsk->bd_pa); 96 if (!tsk->bd) 97 goto error; 99 100 tsk->num_bd = bd_count; 101 tsk->bd_size = bd_size; 102 } 103 104 return tsk; 105 106 error: 107 if (tsk) { 108 if (tsk->irq) 109 irq_dispose_mapping(tsk->irq); 110 bcom_sram_free(tsk->bd); 111 kfree(tsk->cookie); 112 kfree(tsk); 113 } 114 115 bcom_eng->tdt[tasknum].stop = 0; 116 117 return NULL; 118 } 119 EXPORT_SYMBOL_GPL(bcom_task_alloc); 120 121 void 122 bcom_task_free(struct bcom_task *tsk) 123 { 124 /* Stop the task */ 125 bcom_disable_task(tsk->tasknum); 126 127 /* Clear TDT */ 128 bcom_eng->tdt[tsk->tasknum].start = 0; 129 bcom_eng->tdt[tsk->tasknum].stop = 0; 130 131 /* Free everything */ 132 irq_dispose_mapping(tsk->irq); 133 bcom_sram_free(tsk->bd); 134 kfree(tsk->cookie); 135 kfree(tsk); 136 } 137 EXPORT_SYMBOL_GPL(bcom_task_free); 138 139 int 140 bcom_load_image(int task, u32 *task_image) 141 { 142 struct bcom_task_header *hdr = (struct bcom_task_header *)task_image; 143 struct bcom_tdt *tdt; 144 u32 *desc, *var, *inc; 145 u32 *desc_src, *var_src, *inc_src; 146 147 /* Safety checks */ 148 if (hdr->magic != BCOM_TASK_MAGIC) { 149 printk(KERN_ERR DRIVER_NAME 150 ": Trying to load invalid microcode\n"); 151 return -EINVAL; 152 } 153 154 if ((task < 0) || (task >= BCOM_MAX_TASKS)) { 155 printk(KERN_ERR DRIVER_NAME 156 ": Trying to load invalid task %d\n", task); 157 return -EINVAL; 158 } 159 160 /* Initial load or reload */ 161 tdt = &bcom_eng->tdt[task]; 162 163 if (tdt->start) { 164 desc = bcom_task_desc(task); 165 if (hdr->desc_size != bcom_task_num_descs(task)) { 166 printk(KERN_ERR DRIVER_NAME 167 ": Trying to reload wrong task image " 168 "(%d size %d/%d)!\n", 169 task, 170 hdr->desc_size, 171 bcom_task_num_descs(task)); 172 return -EINVAL; 173 } 174 } else { 175 phys_addr_t start_pa; 176 177 desc = bcom_sram_alloc(hdr->desc_size * sizeof(u32), 4, &start_pa); 178 if (!desc) 179 return -ENOMEM; 180 181 tdt->start = start_pa; 182 tdt->stop = start_pa + ((hdr->desc_size-1) * sizeof(u32)); 183 } 184 185 var = bcom_task_var(task); 186 inc = bcom_task_inc(task); 187 188 /* Clear & copy */ 191 192 desc_src = (u32 *)(hdr + 1); 193 var_src = desc_src + hdr->desc_size; 194 inc_src = var_src + hdr->var_size; 195 199 200 return 0; 201 } 202 EXPORT_SYMBOL_GPL(bcom_load_image); 203 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org