linux-kernel - AW: drivers/mtd/nand/ecc-realtek.c:443:undefined reference to `dma_free

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Message-ID: <003801dc4fd1$a76efc20$f64cf460$@gmx.de>
Date: Fri, 7 Nov 2025 11:31:18 +0100
From: <markus.stockhausen@....de>
To: "'Miquel Raynal'" <miquel.raynal@...tlin.com>
Cc: <oe-kbuild-all@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>,
	"'kernel test robot'" <lkp@...el.com>
Subject: AW: drivers/mtd/nand/ecc-realtek.c:443:undefined reference to `dma_free_pages'

> Von: kernel test robot <lkp@...el.com> 
> Gesendet: Freitag, 7. November 2025 04:39
> An: Markus Stockhausen <markus.stockhausen@....de>
> Cc: oe-kbuild-all@...ts.linux.dev; linux-kernel@...r.kernel.org; Miquel
Raynal <miquel.raynal@...tlin.com>
> Betreff: drivers/mtd/nand/ecc-realtek.c:443:undefined reference to
`dma_free_pages'
>
> 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 <lkp@...el.com>
> | 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'

Hi Miquel,

help. What needs to be done here?

Markus