[PATCH] Revert "mtd: nand: make interleaved placement optional"

[Alexander Shiyan <eagle.alexander923@gmail.com>]

This reverts commit d1fe68f1b010b83ddd3559ffbfcb70dca68b2563
and ec3b8c646bdc8c2ea0a78923ccb745012eabc097 (as a fixup).

The message "CONFIG_NAND_NEED_ECC_PLACEMENT_INTERLEAVED is disabled"
is always issued, regardless of the MTD ECC layout used, since it
is executed through "fallthrough" from the previous case statement.

Additionally, if !IS_ENABLED(CONFIG_NAND_NEED_ECC_PLACEMENT_INTERLEAVED)
is triggered, the patch calls break, which disables the additional checks.

Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
---
 drivers/mtd/nand/raw/Kconfig     | 4 ----
 drivers/mtd/nand/raw/nand_base.c | 4 ----
 2 files changed, 8 deletions(-)

diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index b6c6e62731..e9d1b83706 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -35,9 +35,6 @@ config NAND_ALLOW_ERASE_BAD
 config NAND_NEED_EXEC_OP
 	bool
 
-config NAND_NEED_ECC_PLACEMENT_INTERLEAVED
-	bool
-
 comment "Raw/parallel NAND flash controllers"
 
 config NAND_IMX
@@ -159,7 +156,6 @@ config MTD_NAND_DENALI
 	tristate "Support Denali NAND controller"
 	depends on HAS_DMA
 	select NAND_NEED_EXEC_OP
-	select NAND_NEED_ECC_PLACEMENT_INTERLEAVED
 	help
 	  Enable support for the Denali NAND controller.  This should be
 	  combined with either the PCI or platform drivers to provide device
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index b6bef46499..9769725026 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5671,10 +5671,6 @@ static int nand_set_ecc_on_host_ops(struct nand_chip *chip)
 		fallthrough;
 
 	case NAND_ECC_PLACEMENT_INTERLEAVED:
-		if (!IS_ENABLED(CONFIG_NAND_NEED_ECC_PLACEMENT_INTERLEAVED)) {
-			WARN(1, "CONFIG_NAND_NEED_ECC_PLACEMENT_INTERLEAVED is disabled\n");
-			break;
-		}
 		if ((!ecc->calculate || !ecc->correct || !ecc->hwctl) &&
 		    (!ecc->read_page ||
 		     ecc->read_page == nand_read_page_hwecc ||
-- 
2.38.2