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    SubjectRe: [PATCH 29/99] fbdev/grvga: Parse option string with struct option_iter
    Hi Thomas,

    I love your patch! Perhaps something to improve:

    [auto build test WARNING on drm-misc/drm-misc-next]
    [also build test WARNING on staging/staging-testing staging/staging-next staging/staging-linus linus/master v6.3-rc1 next-20230306]
    [cannot apply to deller-parisc/for-next]
    [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#_base_tree_information]

    url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/lib-Add-option-iterator/20230307-000524
    base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
    patch link: https://lore.kernel.org/r/20230306160016.4459-30-tzimmermann%40suse.de
    patch subject: [PATCH 29/99] fbdev/grvga: Parse option string with struct option_iter
    config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230307/202303070324.h15vDbVS-lkp@intel.com/config)
    compiler: sparc64-linux-gcc (GCC) 12.1.0
    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/intel-lab-lkp/linux/commit/0d11862a5c27c6992c00d209c68a7c014f27165a
    git remote add linux-review https://github.com/intel-lab-lkp/linux
    git fetch --no-tags linux-review Thomas-Zimmermann/lib-Add-option-iterator/20230307-000524
    git checkout 0d11862a5c27c6992c00d209c68a7c014f27165a
    # save the config file
    mkdir build_dir && cp config build_dir/.config
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/video/fbdev/

    If you fix the issue, kindly add following tag where applicable
    | Reported-by: kernel test robot <lkp@intel.com>
    | Link: https://lore.kernel.org/oe-kbuild-all/202303070324.h15vDbVS-lkp@intel.com/

    All warnings (new ones prefixed by >>):

    drivers/video/fbdev/grvga.c: In function 'grvga_probe':
    >> drivers/video/fbdev/grvga.c:363:48: warning: passing argument 1 of 'grvga_parse_custom' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
    363 | if (grvga_parse_custom(this_opt, &info->var) < 0) {
    | ^~~~~~~~
    drivers/video/fbdev/grvga.c:266:37: note: expected 'char *' but argument is of type 'const char *'
    266 | static int grvga_parse_custom(char *options,
    | ~~~~~~^~~~~~~


    vim +363 drivers/video/fbdev/grvga.c

    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 327
    48c68c4f1b5424 drivers/video/grvga.c Greg Kroah-Hartman 2012-12-21 328 static int grvga_probe(struct platform_device *dev)
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 329 {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 330 struct fb_info *info;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 331 int retval = -ENOMEM;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 332 unsigned long virtual_start;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 333 unsigned long grvga_fix_addr = 0;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 334 unsigned long physical_start = 0;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 335 unsigned long grvga_mem_size = 0;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 336 struct grvga_par *par = NULL;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 337 char *options = NULL, *mode_opt = NULL;
    0d11862a5c27c6 drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 338 struct option_iter iter;
    0d11862a5c27c6 drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 339 const char *this_opt;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 340
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 341 info = framebuffer_alloc(sizeof(struct grvga_par), &dev->dev);
    0adcdbcb179624 drivers/video/fbdev/grvga.c Bartlomiej Zolnierkiewicz 2019-06-28 342 if (!info)
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 343 return -ENOMEM;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 344
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 345 /* Expecting: "grvga: modestring, [addr:<framebuffer physical address>], [size:<framebuffer size>]
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 346 *
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 347 * If modestring is custom:<custom mode string> we parse the string which then contains all videoparameters
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 348 * If address is left out, we allocate memory,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 349 * if size is left out we only allocate enough to support the given mode.
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 350 */
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 351 if (fb_get_options("grvga", &options)) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 352 retval = -ENODEV;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 353 goto free_fb;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 354 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 355
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 356 if (!options || !*options)
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 357 options = "640x480-8@60";
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 358
    0d11862a5c27c6 drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 359 option_iter_init(&iter, options);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 360
    0d11862a5c27c6 drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 361 while (option_iter_next(&iter, this_opt)) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 362 if (!strncmp(this_opt, "custom", 6)) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 @363 if (grvga_parse_custom(this_opt, &info->var) < 0) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 364 dev_err(&dev->dev, "Failed to parse custom mode (%s).\n", this_opt);
    0d11862a5c27c6 drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 365 option_iter_release(&iter);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 366 retval = -EINVAL;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 367 goto free_fb;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 368 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 369 } else if (!strncmp(this_opt, "addr", 4))
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 370 grvga_fix_addr = simple_strtoul(this_opt + 5, NULL, 16);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 371 else if (!strncmp(this_opt, "size", 4))
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 372 grvga_mem_size = simple_strtoul(this_opt + 5, NULL, 0);
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 373 else {
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 374 static char mode_option_buf[256];
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 375 int ret;
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 376
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 377 ret = snprintf(mode_option_buf, sizeof(mode_option_buf), "%s", this_opt);
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 378 if (WARN(ret < 0,
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 379 "grlib-svgactrl: ignoring invalid option, ret=%d\n",
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 380 ret))
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 381 continue;
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 382 if (WARN(ret >= sizeof(mode_option_buf),
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 383 "grlib-svgactrl: option too long\n"))
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 384 continue;
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 385 mode_opt = mode_option_buf;
    cdc70347167d9a drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 386 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 387 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 388
    0d11862a5c27c6 drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 389 option_iter_release(&iter);
    0d11862a5c27c6 drivers/video/fbdev/grvga.c Thomas Zimmermann 2023-03-06 390
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 391 par = info->par;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 392 info->fbops = &grvga_ops;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 393 info->fix = grvga_fix;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 394 info->pseudo_palette = par->color_palette;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 395 info->flags = FBINFO_DEFAULT | FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 396 info->fix.smem_len = grvga_mem_size;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 397
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 398 if (!devm_request_mem_region(&dev->dev, dev->resource[0].start,
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 399 resource_size(&dev->resource[0]), "grlib-svgactrl regs")) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 400 dev_err(&dev->dev, "registers already mapped\n");
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 401 retval = -EBUSY;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 402 goto free_fb;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 403 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 404
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 405 par->regs = of_ioremap(&dev->resource[0], 0,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 406 resource_size(&dev->resource[0]),
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 407 "grlib-svgactrl regs");
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 408
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 409 if (!par->regs) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 410 dev_err(&dev->dev, "failed to map registers\n");
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 411 retval = -ENOMEM;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 412 goto free_fb;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 413 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 414
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 415 retval = fb_alloc_cmap(&info->cmap, 256, 0);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 416 if (retval < 0) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 417 dev_err(&dev->dev, "failed to allocate mem with fb_alloc_cmap\n");
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 418 retval = -ENOMEM;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 419 goto unmap_regs;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 420 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 421
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 422 if (mode_opt) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 423 retval = fb_find_mode(&info->var, info, mode_opt,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 424 grvga_modedb, sizeof(grvga_modedb), &grvga_modedb[0], 8);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 425 if (!retval || retval == 4) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 426 retval = -EINVAL;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 427 goto dealloc_cmap;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 428 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 429 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 430
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 431 if (!grvga_mem_size)
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 432 grvga_mem_size = info->var.xres_virtual * info->var.yres_virtual * info->var.bits_per_pixel/8;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 433
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 434 if (grvga_fix_addr) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 435 /* Got framebuffer base address from argument list */
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 436
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 437 physical_start = grvga_fix_addr;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 438
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 439 if (!devm_request_mem_region(&dev->dev, physical_start,
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 440 grvga_mem_size, dev->name)) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 441 dev_err(&dev->dev, "failed to request memory region\n");
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 442 retval = -ENOMEM;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 443 goto dealloc_cmap;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 444 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 445
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 446 virtual_start = (unsigned long) ioremap(physical_start, grvga_mem_size);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 447
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 448 if (!virtual_start) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 449 dev_err(&dev->dev, "error mapping framebuffer memory\n");
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 450 retval = -ENOMEM;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 451 goto dealloc_cmap;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 452 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 453 } else { /* Allocate frambuffer memory */
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 454
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 455 unsigned long page;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 456
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 457 virtual_start = (unsigned long) __get_free_pages(GFP_DMA,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 458 get_order(grvga_mem_size));
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 459 if (!virtual_start) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 460 dev_err(&dev->dev,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 461 "unable to allocate framebuffer memory (%lu bytes)\n",
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 462 grvga_mem_size);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 463 retval = -ENOMEM;
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 464 goto dealloc_cmap;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 465 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 466
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 467 physical_start = dma_map_single(&dev->dev, (void *)virtual_start, grvga_mem_size, DMA_TO_DEVICE);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 468
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 469 /* Set page reserved so that mmap will work. This is necessary
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 470 * since we'll be remapping normal memory.
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 471 */
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 472 for (page = virtual_start;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 473 page < PAGE_ALIGN(virtual_start + grvga_mem_size);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 474 page += PAGE_SIZE) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 475 SetPageReserved(virt_to_page(page));
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 476 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 477
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 478 par->fb_alloced = 1;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 479 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 480
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 481 memset((unsigned long *) virtual_start, 0, grvga_mem_size);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 482
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 483 info->screen_base = (char __iomem *) virtual_start;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 484 info->fix.smem_start = physical_start;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 485 info->fix.smem_len = grvga_mem_size;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 486
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 487 dev_set_drvdata(&dev->dev, info);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 488
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 489 dev_info(&dev->dev,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 490 "Aeroflex Gaisler framebuffer device (fb%d), %dx%d-%d, using %luK of video memory @ %p\n",
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 491 info->node, info->var.xres, info->var.yres, info->var.bits_per_pixel,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 492 grvga_mem_size >> 10, info->screen_base);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 493
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 494 retval = register_framebuffer(info);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 495 if (retval < 0) {
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 496 dev_err(&dev->dev, "failed to register framebuffer\n");
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 497 goto free_mem;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 498 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 499
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 500 __raw_writel(physical_start, &par->regs->fb_pos);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 501 __raw_writel(__raw_readl(&par->regs->status) | 1, /* Enable framebuffer */
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 502 &par->regs->status);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 503
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 504 return 0;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 505
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 506 free_mem:
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 507 if (grvga_fix_addr)
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 508 iounmap((void *)virtual_start);
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 509 else
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 510 kfree((void *)virtual_start);
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 511 dealloc_cmap:
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 512 fb_dealloc_cmap(&info->cmap);
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 513 unmap_regs:
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 514 of_iounmap(&dev->resource[0], par->regs,
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 515 resource_size(&dev->resource[0]));
    42eb317f7d089f drivers/video/grvga.c Emil Goode 2012-06-26 516 free_fb:
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 517 framebuffer_release(info);
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 518
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 519 return retval;
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 520 }
    a4b8f97a8fdeb9 drivers/video/grvga.c Kristoffer Glembo 2011-07-05 521

    --
    0-DAY CI Kernel Test Service
    https://github.com/intel/lkp-tests

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