Hi,
Please, don't apply this patch. I have to review it,. BR On Thu, Dec 30, 2021 at 10:31:45PM +0800, kernel test robot wrote: > Hi Claudio, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on drm/drm-next] > [also build test WARNING on drm-intel/for-linux-next drm-tip/drm-tip > v5.16-rc7 next-20211224] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use '--base' as documented in > https://git-scm.com/docs/git-format-patch] > > url: > https://github.com/0day-ci/linux/commits/Claudio-Suarez/drm-get-rid-of-DRM_DEBUG_-log-calls-in-drm-core-files-drm_-b-c-c/20211230-185446 > base: git://anongit.freedesktop.org/drm/drm drm-next > config: hexagon-randconfig-r041-20211230 > (https://download.01.org/0day-ci/archive/20211230/202112302236.ikd2et5w-...@intel.com/config) > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project > cd284b7ac0615afc6e0f1a30da2777e361de27a3) > 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 > # > https://github.com/0day-ci/linux/commit/9cfa12f89e858cd6d2eb5eb17c6db7ab689343e3 > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review > Claudio-Suarez/drm-get-rid-of-DRM_DEBUG_-log-calls-in-drm-core-files-drm_-b-c-c/20211230-185446 > git checkout 9cfa12f89e858cd6d2eb5eb17c6db7ab689343e3 > # save the config file to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 > O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/gpu/drm/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <l...@intel.com> > > All warnings (new ones prefixed by >>): > > drivers/gpu/drm/drm_bufs.c:174:14: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "offset = 0x%08llx, size = 0x%08lx, type = %d\n", > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > >> drivers/gpu/drm/drm_bufs.c:174:19: warning: incompatible pointer to > >> integer conversion passing 'char[46]' to parameter of type 'enum > >> drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "offset = 0x%08llx, size = 0x%08lx, type = %d\n", > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > >> drivers/gpu/drm/drm_bufs.c:175:7: warning: incompatible integer to pointer > >> conversion passing 'unsigned long long' to parameter of type 'const char > >> *' [-Wint-conversion] > (unsigned long long)map->offset, map->size, map->type); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:208:17: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:209:10: warning: incompatible pointer to > integer conversion passing 'char[62]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > "Matching maps of type %d with > mismatched sizes, (%ld vs %ld)\n", > > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > >> drivers/gpu/drm/drm_bufs.c:210:10: warning: incompatible integer to > >> pointer conversion passing 'enum drm_map_type' to parameter of type 'const > >> char *' [-Wint-conversion] > map->type, map->size, > list->map->size); > ^~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:241:17: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:242:10: warning: incompatible pointer to > integer conversion passing 'char[62]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > "Matching maps of type %d with > mismatched sizes, (%ld vs %ld)\n", > > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:243:10: warning: incompatible integer to > pointer conversion passing 'enum drm_map_type' to parameter of type 'const > char *' [-Wint-conversion] > map->type, map->size, > list->map->size); > ^~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:252:15: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "%lu %d %p\n", > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:252:20: warning: incompatible pointer to > integer conversion passing 'char[11]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "%lu %d %p\n", > ^~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > >> drivers/gpu/drm/drm_bufs.c:253:6: warning: incompatible integer to pointer > >> conversion passing 'unsigned long' to parameter of type 'const char *' > >> [-Wint-conversion] > map->size, order_base_2(map->size), map->handle); > ^~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:310:15: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "AGP offset = 0x%08llx, size = 0x%08lx\n", > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:310:20: warning: incompatible pointer to > integer conversion passing 'char[39]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "AGP offset = 0x%08llx, size = 0x%08lx\n", > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:311:6: warning: incompatible integer to pointer > conversion passing 'unsigned long long' to parameter of type 'const char *' > [-Wint-conversion] > (unsigned long long)map->offset, map->size); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:914:14: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "count=%d, size=%d (%d), order=%d\n", > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:914:19: warning: incompatible pointer to > integer conversion passing 'char[34]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "count=%d, size=%d (%d), order=%d\n", > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > >> drivers/gpu/drm/drm_bufs.c:915:7: warning: incompatible integer to pointer > >> conversion passing 'int' to parameter of type 'const char *' > >> [-Wint-conversion] > request->count, request->size, size, order); > ^~~~~~~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:977:14: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "pagelist: %d entries\n", > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:977:19: warning: incompatible pointer to > integer conversion passing 'char[22]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "pagelist: %d entries\n", > ^~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:978:7: warning: incompatible integer to pointer > conversion passing 'int' to parameter of type 'const char *' > [-Wint-conversion] > dma->page_count + (count << page_order)); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:1017:16: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "page %d @ 0x%08lx\n", > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1017:21: warning: incompatible pointer to > integer conversion passing 'char[19]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "page %d @ 0x%08lx\n", > ^~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1018:9: warning: incompatible integer to > pointer conversion passing 'int' to parameter of type 'const char *' > [-Wint-conversion] > dma->page_count + page_count, > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:1053:16: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "buffer %d @ %p\n", > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1053:21: warning: incompatible pointer to > integer conversion passing 'char[16]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "buffer %d @ %p\n", > ^~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1054:9: warning: incompatible integer to > pointer conversion passing 'int' to parameter of type 'const char *' > [-Wint-conversion] > entry->buf_count, buf->address); > ^~~~~~~~~~~~~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:1142:14: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "count: %d\n", count); > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1142:19: warning: incompatible pointer to > integer conversion passing 'char[16]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "count: %d\n", count); > ^~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1142:39: warning: incompatible integer to > pointer conversion passing 'int' to parameter of type 'const char *' > [-Wint-conversion] > drm_dev_dbg(dev, "count: %d\n", count); > ^~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:1143:14: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "order: %d\n", order); > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1143:19: warning: incompatible pointer to > integer conversion passing 'char[16]' to parameter of type 'enum > drm_debug_category' [-Wint-conversion] > drm_dev_dbg(dev, "order: %d\n", order); > ^~~~~~~~~~~~~~~~~~ > include/drm/drm_print.h:337:68: note: passing argument to parameter > 'category' here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > ^ > drivers/gpu/drm/drm_bufs.c:1143:39: warning: incompatible integer to > pointer conversion passing 'int' to parameter of type 'const char *' > [-Wint-conversion] > drm_dev_dbg(dev, "order: %d\n", order); > ^~~~~ > include/drm/drm_print.h:338:16: note: passing argument to parameter > 'format' here > const char *format, ...); > ^ > drivers/gpu/drm/drm_bufs.c:1144:14: error: incompatible pointer types > passing 'struct drm_device *' to parameter of type 'const struct device *' > [-Werror,-Wincompatible-pointer-types] > drm_dev_dbg(dev, "size: %d\n", size); > ^~~ > include/drm/drm_print.h:337:39: note: passing argument to parameter 'dev' > here > void drm_dev_dbg(const struct device *dev, enum drm_debug_category > category, > > > vim +174 drivers/gpu/drm/drm_bufs.c > > 138 > 139 /* > 140 * Core function to create a range of memory available for > mapping by a > 141 * non-root process. > 142 * > 143 * Adjusts the memory offset to its absolute value according to > the mapping > 144 * type. Adds the map to the map list drm_device::maplist. > Adds MTRR's where > 145 * applicable and if supported by the kernel. > 146 */ > 147 static int drm_addmap_core(struct drm_device *dev, > resource_size_t offset, > 148 unsigned int size, enum drm_map_type > type, > 149 enum drm_map_flags flags, > 150 struct drm_map_list **maplist) > 151 { > 152 struct drm_local_map *map; > 153 struct drm_map_list *list; > 154 unsigned long user_token; > 155 int ret; > 156 > 157 map = kmalloc(sizeof(*map), GFP_KERNEL); > 158 if (!map) > 159 return -ENOMEM; > 160 > 161 map->offset = offset; > 162 map->size = size; > 163 map->flags = flags; > 164 map->type = type; > 165 > 166 /* Only allow shared memory to be removable since we > only keep enough > 167 * book keeping information about shared memory to > allow for removal > 168 * when processes fork. > 169 */ > 170 if ((map->flags & _DRM_REMOVABLE) && map->type != > _DRM_SHM) { > 171 kfree(map); > 172 return -EINVAL; > 173 } > > 174 drm_dev_dbg(dev, "offset = 0x%08llx, size = 0x%08lx, > type = %d\n", > > 175 (unsigned long long)map->offset, map->size, > map->type); > 176 > 177 /* page-align _DRM_SHM maps. They are allocated here so > there is no security > 178 * hole created by that and it works around various > broken drivers that use > 179 * a non-aligned quantity to map the SAREA. --BenH > 180 */ > 181 if (map->type == _DRM_SHM) > 182 map->size = PAGE_ALIGN(map->size); > 183 > 184 if ((map->offset & (~(resource_size_t)PAGE_MASK)) || > (map->size & (~PAGE_MASK))) { > 185 kfree(map); > 186 return -EINVAL; > 187 } > 188 map->mtrr = -1; > 189 map->handle = NULL; > 190 > 191 switch (map->type) { > 192 case _DRM_REGISTERS: > 193 case _DRM_FRAME_BUFFER: > 194 #if !defined(__sparc__) && !defined(__alpha__) && > !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__) && > !defined(__arm__) > 195 if (map->offset + (map->size-1) < map->offset || > 196 map->offset < virt_to_phys(high_memory)) { > 197 kfree(map); > 198 return -EINVAL; > 199 } > 200 #endif > 201 /* Some drivers preinitialize some maps, > without the X Server > 202 * needing to be aware of it. Therefore, we > just return success > 203 * when the server tries to create a duplicate > map. > 204 */ > 205 list = drm_find_matching_map(dev, map); > 206 if (list != NULL) { > 207 if (list->map->size != map->size) { > 208 drm_dev_dbg(dev, > 209 "Matching maps of > type %d with mismatched sizes, (%ld vs %ld)\n", > > 210 map->type, > map->size, list->map->size); > 211 list->map->size = map->size; > 212 } > 213 > 214 kfree(map); > 215 *maplist = list; > 216 return 0; > 217 } > 218 > 219 if (map->type == _DRM_FRAME_BUFFER || > 220 (map->flags & _DRM_WRITE_COMBINING)) { > 221 map->mtrr = > 222 arch_phys_wc_add(map->offset, > map->size); > 223 } > 224 if (map->type == _DRM_REGISTERS) { > 225 if (map->flags & _DRM_WRITE_COMBINING) > 226 map->handle = > ioremap_wc(map->offset, > 227 > map->size); > 228 else > 229 map->handle = > ioremap(map->offset, map->size); > 230 if (!map->handle) { > 231 kfree(map); > 232 return -ENOMEM; > 233 } > 234 } > 235 > 236 break; > 237 case _DRM_SHM: > 238 list = drm_find_matching_map(dev, map); > 239 if (list != NULL) { > 240 if (list->map->size != map->size) { > 241 drm_dev_dbg(dev, > 242 "Matching maps of > type %d with mismatched sizes, (%ld vs %ld)\n", > 243 map->type, > map->size, list->map->size); > 244 list->map->size = map->size; > 245 } > 246 > 247 kfree(map); > 248 *maplist = list; > 249 return 0; > 250 } > 251 map->handle = vmalloc_user(map->size); > 252 drm_dev_dbg(dev, "%lu %d %p\n", > > 253 map->size, order_base_2(map->size), > map->handle); > 254 if (!map->handle) { > 255 kfree(map); > 256 return -ENOMEM; > 257 } > 258 map->offset = (unsigned long)map->handle; > 259 if (map->flags & _DRM_CONTAINS_LOCK) { > 260 /* Prevent a 2nd X Server from creating > a 2nd lock */ > 261 if (dev->master->lock.hw_lock != NULL) { > 262 vfree(map->handle); > 263 kfree(map); > 264 return -EBUSY; > 265 } > 266 dev->sigdata.lock = > dev->master->lock.hw_lock = map->handle; /* Pointer to lock */ > 267 } > 268 break; > 269 case _DRM_AGP: { > 270 struct drm_agp_mem *entry; > 271 int valid = 0; > 272 > 273 if (!dev->agp) { > 274 kfree(map); > 275 return -EINVAL; > 276 } > 277 #ifdef __alpha__ > 278 map->offset += dev->hose->mem_space->start; > 279 #endif > 280 /* In some cases (i810 driver), user space may > have already > 281 * added the AGP base itself, because > dev->agp->base previously > 282 * only got set during AGP enable. So, only > add the base > 283 * address if the map's offset isn't already > within the > 284 * aperture. > 285 */ > 286 if (map->offset < dev->agp->base || > 287 map->offset > dev->agp->base + > 288 dev->agp->agp_info.aper_size * 1024 * 1024 > - 1) { > 289 map->offset += dev->agp->base; > 290 } > 291 map->mtrr = dev->agp->agp_mtrr; /* for getmap */ > 292 > 293 /* This assumes the DRM is in total control of > AGP space. > 294 * It's not always the case as AGP can be in > the control > 295 * of user space (i.e. i810 driver). So this > loop will get > 296 * skipped and we double check that > dev->agp->memory is > 297 * actually set as well as being invalid before > EPERM'ing > 298 */ > 299 list_for_each_entry(entry, &dev->agp->memory, > head) { > 300 if ((map->offset >= entry->bound) && > 301 (map->offset + map->size <= > entry->bound + entry->pages * PAGE_SIZE)) { > 302 valid = 1; > 303 break; > 304 } > 305 } > 306 if (!list_empty(&dev->agp->memory) && !valid) { > 307 kfree(map); > 308 return -EPERM; > 309 } > 310 drm_dev_dbg(dev, "AGP offset = 0x%08llx, size = > 0x%08lx\n", > 311 (unsigned long long)map->offset, > map->size); > 312 > 313 break; > 314 } > 315 case _DRM_SCATTER_GATHER: > 316 if (!dev->sg) { > 317 kfree(map); > 318 return -EINVAL; > 319 } > 320 map->offset += (unsigned long)dev->sg->virtual; > 321 break; > 322 case _DRM_CONSISTENT: > 323 /* dma_addr_t is 64bit on i386 with > CONFIG_HIGHMEM64G, > 324 * As we're limiting the address to 2^32-1 (or > less), > 325 * casting it down to 32 bits is no problem, > but we > 326 * need to point to a 64bit variable first. > 327 */ > 328 map->handle = dma_alloc_coherent(dev->dev, > 329 map->size, > 330 &map->offset, > 331 GFP_KERNEL); > 332 if (!map->handle) { > 333 kfree(map); > 334 return -ENOMEM; > 335 } > 336 break; > 337 default: > 338 kfree(map); > 339 return -EINVAL; > 340 } > 341 > 342 list = kzalloc(sizeof(*list), GFP_KERNEL); > 343 if (!list) { > 344 if (map->type == _DRM_REGISTERS) > 345 iounmap(map->handle); > 346 kfree(map); > 347 return -EINVAL; > 348 } > 349 list->map = map; > 350 > 351 mutex_lock(&dev->struct_mutex); > 352 list_add(&list->head, &dev->maplist); > 353 > 354 /* Assign a 32-bit handle */ > 355 /* We do it here so that dev->struct_mutex protects the > increment */ > 356 user_token = (map->type == _DRM_SHM) ? (unsigned > long)map->handle : > 357 map->offset; > 358 ret = drm_map_handle(dev, &list->hash, user_token, 0, > 359 (map->type == _DRM_SHM)); > 360 if (ret) { > 361 if (map->type == _DRM_REGISTERS) > 362 iounmap(map->handle); > 363 kfree(map); > 364 kfree(list); > 365 mutex_unlock(&dev->struct_mutex); > 366 return ret; > 367 } > 368 > 369 list->user_token = list->hash.key << PAGE_SHIFT; > 370 mutex_unlock(&dev->struct_mutex); > 371 > 372 if (!(map->flags & _DRM_DRIVER)) > 373 list->master = dev->master; > 374 *maplist = list; > 375 return 0; > 376 } > 377 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
