Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1270156 > unrolled thread

[PATCH 02/27] mtd: nand: add an mtd_to_nand() helper

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [PATCH 02/27] mtd: nand: add an mtd_to_nand() helper Boris Brezillon <boris.brezillon@free-electrons.com> - 2015-11-16 14:50 +0100
    Re: [PATCH 02/27] mtd: nand: add an mtd_to_nand() helper Brian Norris <computersforpeace@gmail.com> - 2015-11-19 20:20 +0100

#1270156 — [PATCH 02/27] mtd: nand: add an mtd_to_nand() helper

Some drivers are retrieving the nand_chip pointer using the container_of
macro on a struct wrapping both the nand_chip and the mtd_info struct while
the standard way of retrieving this pointer is through mtd->priv.
Provide an helper to do that.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
 include/linux/mtd/nand.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 4f7c9b9..056d165 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -730,6 +730,11 @@ static inline struct device_node *nand_get_flash_node(struct nand_chip *chip)
 	return chip->flash_node;
 }
 
+static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
+{
+	return mtd->priv;
+}
+
 /*
  * NAND Flash Manufacturer ID Codes
  */
-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [next] | [standalone]

#1273420

On Mon, Nov 16, 2015 at 02:37:35PM +0100, Boris Brezillon wrote:
> Some drivers are retrieving the nand_chip pointer using the container_of
> macro on a struct wrapping both the nand_chip and the mtd_info struct while
> the standard way of retrieving this pointer is through mtd->priv.
> Provide an helper to do that.
> 
> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> ---
>  include/linux/mtd/nand.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
> index 4f7c9b9..056d165 100644
> --- a/include/linux/mtd/nand.h
> +++ b/include/linux/mtd/nand.h
> @@ -730,6 +730,11 @@ static inline struct device_node *nand_get_flash_node(struct nand_chip *chip)
>  	return chip->flash_node;
>  }
>  
> +static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
> +{
> +	return mtd->priv;
> +}
> +

Pushed this patch to l2-mtd.git, though I rebased it directly onto
4.4-rc1 and then merged it in. That way, if any other subsystems want to
start using this in the 4.5 -next cycle (e.g., for patches 4-8), they
can pull it in without taking the rest of MTD.

I can push this to a separate branch or signed tag, if anyone wants.

Or, I can take the arch/ patches via MTD, if that's a better option.

Brian
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web