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charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4a0c9b3391999818e2c5b93719699b255be1f682 commit: 3148d0e5b1c5733d69ec51b70c8280e46488750a mtd: nand: realtek-ecc: Add Realtek external ECC engine support date: 6 weeks ago config: sh-randconfig-r121-20251107 (https://download.01.org/0day-ci/archive/20251107/202511071114.8WeW2GZK-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251107/202511071114.8WeW2GZK-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/202511071114.8WeW2GZK-lkp@intel.com/ All errors (new ones prefixed by >>): sh4-linux-ld: drivers/mtd/nand/ecc-realtek.o: in function `rtl_ecc_remove': >> drivers/mtd/nand/ecc-realtek.c:443:(.text+0x1f8): undefined reference to `dma_free_pages' sh4-linux-ld: drivers/mtd/nand/ecc-realtek.o: in function `rtl_ecc_probe': >> drivers/mtd/nand/ecc-realtek.c:434:(.text+0x2e8): undefined reference to `dma_alloc_pages' sh4-linux-ld: drivers/media/i2c/tc358746.o: in function `tc358746_probe': drivers/media/i2c/tc358746.c:1585:(.text+0x15cc): undefined reference to `devm_clk_hw_register' sh4-linux-ld: drivers/media/i2c/tc358746.c:1610:(.text+0x163c): undefined reference to `devm_of_clk_add_hw_provider' sh4-linux-ld: drivers/media/i2c/tc358746.c:1610:(.text+0x1640): undefined reference to `of_clk_hw_simple_get' vim +443 drivers/mtd/nand/ecc-realtek.c 389 390 static int rtl_ecc_probe(struct platform_device *pdev) 391 { 392 struct device *dev = &pdev->dev; 393 struct rtl_ecc_engine *rtlc; 394 void __iomem *base; 395 int ret; 396 397 rtlc = devm_kzalloc(dev, sizeof(*rtlc), GFP_KERNEL); 398 if (!rtlc) 399 return -ENOMEM; 400 401 base = devm_platform_ioremap_resource(pdev, 0); 402 if (IS_ERR(base)) 403 return PTR_ERR(base); 404 405 ret = devm_mutex_init(dev, &rtlc->lock); 406 if (ret) 407 return ret; 408 409 rtlc->regmap = devm_regmap_init_mmio(dev, base, &rtl_ecc_regmap_config); 410 if (IS_ERR(rtlc->regmap)) 411 return PTR_ERR(rtlc->regmap); 412 413 /* 414 * Focus on simplicity and use a preallocated DMA buffer for data exchange with the 415 * engine. For now make it a noncoherent memory model as invalidating/flushing caches 416 * is faster than reading/writing uncached memory on the known architectures. 417 */ 418 419 rtlc->buf = dma_alloc_noncoherent(dev, RTL_ECC_DMA_SIZE, &rtlc->buf_dma, 420 DMA_BIDIRECTIONAL, GFP_KERNEL); 421 if (IS_ERR(rtlc->buf)) 422 return PTR_ERR(rtlc->buf); 423 424 rtlc->dev = dev; 425 rtlc->engine.dev = dev; 426 rtlc->engine.ops = &rtl_ecc_engine_ops; 427 rtlc->engine.integration = NAND_ECC_ENGINE_INTEGRATION_EXTERNAL; 428 429 nand_ecc_register_on_host_hw_engine(&rtlc->engine); 430 431 platform_set_drvdata(pdev, rtlc); 432 433 return 0; > 434 } 435 436 static void rtl_ecc_remove(struct platform_device *pdev) 437 { 438 struct rtl_ecc_engine *rtlc = platform_get_drvdata(pdev); 439 440 nand_ecc_unregister_on_host_hw_engine(&rtlc->engine); 441 dma_free_noncoherent(rtlc->dev, RTL_ECC_DMA_SIZE, rtlc->buf, rtlc->buf_dma, 442 DMA_BIDIRECTIONAL); > 443 } 444 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki