mtd: nand: Pass mode information to nand_page_io_req (f567c71f) · Commits · 戴 / test

The NAND sub-layers are likely to need the MTD_OPS_XXX mode information in order to decide if they should enable/disable ECC or how they should place the OOB bytes in the provided OOB buffer. Add a field to nand_page_io_req to pass this information. Signed-off-by:

Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by:

Miquel Raynal <miquel.raynal@bootlin.com> Tested-by:

Frieder Schrempf <frieder.schrempf@exceet.de> Reviewed-by:

Frieder Schrempf <frieder.schrempf@exceet.de>

include/linux/mtd/nand.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -86,6 +86,7 @@ struct nand_pos {
		* @ooboffs: the OOB offset within the page
		* @ooblen: the number of OOB bytes to read from/write to this page
		* @oobbuf: buffer to store OOB data in or get OOB data from
		* @mode: one of the %MTD_OPS_XXX mode
		*
		* This object is used to pass per-page I/O requests to NAND sub-layers. This
		* way all useful information are already formatted in a useful way and
		@@ -106,6 +107,7 @@ struct nand_page_io_req {
		const void *out;
		void *in;
		} oobbuf;
		int mode;
		};

		/**
		@@ -599,6 +601,7 @@ static inline void nanddev_io_iter_init(struct nand_device *nand,
		{
		struct mtd_info *mtd = nanddev_to_mtd(nand);

		iter->req.mode = req->mode;
		iter->req.dataoffs = nanddev_offs_to_pos(nand, offs, &iter->req.pos);
		iter->req.ooboffs = req->ooboffs;
		iter->oobbytes_per_page = mtd_oobavail(mtd, req);

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