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charset=us-ascii tree: https://gitlab.com/stefandoesinger/zx297520-kernel dlink head: 4132307830800b020a6d29d27cb3fec3cb5fbb90 commit: ffc256cf7e9bea66ecdb62566ec625760720329b [120/131] rpmsg polling config: sparc64-allmodconfig (https://download.01.org/0day-ci/archive/20260903/202609031311.esEudpZG-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260903/202609031311.esEudpZG-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202609031311.esEudpZG-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/rpmsg/zx29_smd.c:205:66: warning: cast to smaller integer type 'unsigned int' from 'struct zx29_smd *' [-Wpointer-to-int-cast] 205 | dev_info(&zx29_smd->pdev->dev, "zx29_smd_rx_work smd 0x%08x\n", (unsigned int)zx29_smd); | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:160:67: note: expanded from macro 'dev_info' 160 | dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ drivers/rpmsg/zx29_smd.c:337:92: warning: cast to smaller integer type 'unsigned int' from 'u8 *' (aka 'unsigned char *') [-Wpointer-to-int-cast] 337 | dev_info(&pdev->dev, "zx29_smd->data_r phys 0x%08x virt 0x%08x\n", zx29_smd->recv->base, (unsigned int)zx29_smd->data_r); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:160:67: note: expanded from macro 'dev_info' 160 | dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ drivers/rpmsg/zx29_smd.c:367:52: warning: cast to smaller integer type 'unsigned int' from 'u8 *' (aka 'unsigned char *') [-Wpointer-to-int-cast] 367 | dev_info(&pdev->dev, "zx29_smd->data_s 0x%08x\n", (unsigned int)zx29_smd->data_s); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:160:67: note: expanded from macro 'dev_info' 160 | dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ drivers/rpmsg/zx29_smd.c:193:13: warning: unused function 'zx29_smd_release_device' [-Wunused-function] 193 | static void zx29_smd_release_device(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~ 4 warnings generated. vim +205 drivers/rpmsg/zx29_smd.c 197 198 static void zx29_smd_rx_work(struct work_struct *work) 199 { 200 struct zx29_smd *zx29_smd = to_zx29_rpmsg_device_work(work); 201 u32 send_pos, len, pkg_len, processed = 0; 202 const struct msg_hdr *hdr; 203 u8 *ptr, *alloc = NULL; 204 > 205 dev_info(&zx29_smd->pdev->dev, "zx29_smd_rx_work smd 0x%08x\n", (unsigned int)zx29_smd); 206 dev_info(&zx29_smd->pdev->dev, "zx29_smd_rx_work channel 0x%08x\n", zx29_smd->ept.addr); 207 208 if (!zx29_smd->data_r) { 209 dev_info(&zx29_smd->pdev->dev, "receive base not mapped\n"); 210 // FIXME: I guess I can't do that in an IRQ context 211 return; 212 /* 213 dev_info(&zx29_smd->pdev->dev, "trying to ioremap 0x%08x\n", zx29_smd->recv->base); 214 zx29_smd->data_r = devm_memremap(&zx29_smd->pdev->dev, 215 zx29_smd->recv->base, zx29_smd->recv->size, 216 MEMREMAP_WT); 217 dev_info(&zx29_smd->pdev->dev, "zx29_smd->data_r phys 0x%08x virt 0x%08x\n", 218 zx29_smd->recv->base, (unsigned int)zx29_smd->data_r); 219 */ 220 } 221 222 for (;;) { 223 send_pos = zx29_smd->recv->send_pos; 224 225 if (send_pos == zx29_smd->recv->recv_pos) { 226 break; 227 } 228 229 dev_info(&zx29_smd->pdev->dev, "old recv %u new incoming %u. Ringbuffer size %u\n", 230 zx29_smd->recv->recv_pos, send_pos, zx29_smd->recv->size); 231 232 if (send_pos > zx29_smd->recv->recv_pos) { 233 ptr = zx29_smd->data_r + zx29_smd->recv->recv_pos; 234 len = send_pos - zx29_smd->recv->recv_pos; 235 if (send_pos == zx29_smd->recv->size) { 236 dev_info(&zx29_smd->pdev->dev, "send_pos == size\n"); 237 } else { 238 dev_info(&zx29_smd->pdev->dev, "easy default path\n"); 239 } 240 } else if (!send_pos) { 241 dev_info(&zx29_smd->pdev->dev, "send_pos == 0\n"); 242 ptr = zx29_smd->data_r + zx29_smd->recv->recv_pos; 243 len = zx29_smd->recv->size - zx29_smd->recv->recv_pos; 244 } else { 245 dev_info(&zx29_smd->pdev->dev, "wraparound\n"); 246 len = zx29_smd->recv->size - zx29_smd->recv->recv_pos + send_pos; 247 alloc = kzalloc(len, GFP_KERNEL); 248 249 memcpy(alloc, zx29_smd->data_r + zx29_smd->recv->recv_pos, 250 zx29_smd->recv->size - zx29_smd->recv->recv_pos); 251 memcpy(alloc + zx29_smd->recv->size - zx29_smd->recv->recv_pos, zx29_smd->data_r, 252 send_pos); 253 } 254 255 hdr = (const struct msg_hdr *)ptr; 256 pkg_len = ZX29_MSG_ALIGN(hdr->len) + sizeof(*hdr); 257 if (hdr->magic != ZX29_MSG_MAGIC) { 258 dev_info(&zx29_smd->pdev->dev, "Invalid magic 0x%04x\n", hdr->magic); 259 } else if (pkg_len > len) { 260 dev_info(&zx29_smd->pdev->dev, "Header length 0x%04x, in buffer 0x%04x\n", 261 hdr->len, len); 262 } else { 263 if (!hdr->len) { 264 dev_info(&zx29_smd->pdev->dev, "Zero-length packet\n"); 265 } 266 zx29_smd->ept.cb(&zx29_smd->rpdev, ptr + sizeof(*hdr), hdr->len, zx29_smd->ept.priv, RPMSG_ADDR_ANY); 267 } 268 269 kfree(alloc); 270 zx29_smd->recv->recv_pos = (zx29_smd->recv->recv_pos + pkg_len) % zx29_smd->recv->size; 271 processed++; 272 } 273 274 if (!processed) { 275 dev_info(&zx29_smd->pdev->dev, "No messages processed?\n"); 276 } 277 } 278 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki