From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Markus Stockhausen <markus.stockhausen@gmx.de>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH] mtd: nand: MTD_NAND_ECC_REALTEK should depend on HAS_DMA
Date: Wed, 8 Oct 2025 11:47:15 +0200 [thread overview]
Message-ID: <5109cd228940c246d2e1ef4ff01799315601c285.1759916792.git.geert@linux-m68k.org> (raw)
If CONFIG_NO_DMA=y:
ERROR: modpost: "dma_free_pages" [drivers/mtd/nand/ecc-realtek.ko] undefined!
ERROR: modpost: "dma_alloc_pages" [drivers/mtd/nand/ecc-realtek.ko] undefined!
The driver cannot function without DMA, hence fix this by adding a
dependency on HAS_DMA.
Fixes: 3148d0e5b1c5733d ("mtd: nand: realtek-ecc: Add Realtek external ECC engine support")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
drivers/mtd/nand/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 4a17271076bc1c4a..1e57c8de857825d7 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -63,7 +63,7 @@ config MTD_NAND_ECC_MEDIATEK
config MTD_NAND_ECC_REALTEK
tristate "Realtek RTL93xx hardware ECC engine"
- depends on HAS_IOMEM
+ depends on HAS_IOMEM && HAS_DMA
depends on MACH_REALTEK_RTL || COMPILE_TEST
select MTD_NAND_ECC
help
--
2.43.0
next reply other threads:[~2025-10-08 9:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-08 9:47 Geert Uytterhoeven [this message]
2025-10-08 12:57 ` AW: " markus.stockhausen
2025-10-22 9:56 ` Miquel Raynal
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