Re: [PATCH v2 12/25] mtd: nand: use the mtd instance embedded in struct nand_chip

From: Brian Norris
Date: Tue Dec 01 2015 - 17:15:44 EST

Hi Boris,

On Tue, Dec 01, 2015 at 12:03:09PM +0100, Boris Brezillon wrote:
> struct nand_chip now embeds an mtd device. Patch all drivers to make use
> of this mtd instance instead of using the instance embedded in their
> private struct or dynamically allocated.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
> Cc: Julia Lawall <Julia.Lawall@xxxxxxx>
> ---
> Most of those changes were generated with the coccinelle script added
> in commit c671312 "coccinelle: nand: detect and correct drivers embedding
> an mtd_info object"
> ---
> drivers/mtd/nand/ams-delta.c | 13 ++--
> drivers/mtd/nand/atmel_nand.c | 13 ++--
> drivers/mtd/nand/au1550nd.c | 19 ++---
> drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h | 1 -
> drivers/mtd/nand/bcm47xxnflash/main.c | 8 ++-
> drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 2 +-
> drivers/mtd/nand/bf5xx_nand.c | 12 ++--
> drivers/mtd/nand/brcmnand/brcmnand.c | 13 ++--
> drivers/mtd/nand/cafe_nand.c | 8 +--
> drivers/mtd/nand/cmx270_nand.c | 11 ++-
> drivers/mtd/nand/cs553x_nand.c | 13 ++--
> drivers/mtd/nand/davinci_nand.c | 30 ++++----
> drivers/mtd/nand/denali.c | 68 ++++++++++--------
> drivers/mtd/nand/denali.h | 1 -
> drivers/mtd/nand/diskonchip.c | 11 ++-
> drivers/mtd/nand/docg4.c | 16 ++---
> drivers/mtd/nand/fsl_elbc_nand.c | 26 ++++---
> drivers/mtd/nand/fsl_ifc_nand.c | 28 ++++----
> drivers/mtd/nand/fsl_upm.c | 28 ++++----
> drivers/mtd/nand/fsmc_nand.c | 56 ++++++++-------
> drivers/mtd/nand/gpio.c | 20 +++---
> drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 2 +-
> drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 20 +++---
> drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 1 -
> drivers/mtd/nand/hisi504_nand.c | 13 ++--
> drivers/mtd/nand/jz4740_nand.c | 9 ++-
> drivers/mtd/nand/lpc32xx_mlc.c | 7 +-
> drivers/mtd/nand/lpc32xx_slc.c | 7 +-
> drivers/mtd/nand/mpc5121_nfc.c | 3 +-
> drivers/mtd/nand/mxc_nand.c | 5 +-
> drivers/mtd/nand/nandsim.c | 12 ++--
> drivers/mtd/nand/ndfc.c | 24 ++++---
> drivers/mtd/nand/nuc900_nand.c | 24 +++----
> drivers/mtd/nand/omap2.c | 98 +++++++++++++++-----------
> drivers/mtd/nand/orion_nand.c | 4 +-
> drivers/mtd/nand/pasemi_nand.c | 12 ++--
> drivers/mtd/nand/plat_nand.c | 15 ++--
> drivers/mtd/nand/pxa3xx_nand.c | 33 ++++-----
> drivers/mtd/nand/r852.c | 34 ++++-----
> drivers/mtd/nand/r852.h | 1 -
> drivers/mtd/nand/s3c2410.c | 23 +++---

^^ some errors in this one

> drivers/mtd/nand/sh_flctl.c | 8 +--
> drivers/mtd/nand/sharpsl.c | 22 +++---
> drivers/mtd/nand/socrates_nand.c | 5 +-
> drivers/mtd/nand/sunxi_nand.c | 13 ++--
> drivers/mtd/nand/tmio_nand.c | 10 +--
> drivers/mtd/nand/txx9ndfmc.c | 3 +-
> drivers/mtd/nand/vf610_nfc.c | 8 ++-
> include/linux/mtd/sh_flctl.h | 3 +-
> 49 files changed, 426 insertions(+), 390 deletions(-)
>

[...]

> diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
> index e658b29..3f29734 100644
> --- a/drivers/mtd/nand/s3c2410.c
> +++ b/drivers/mtd/nand/s3c2410.c
> @@ -104,7 +104,6 @@ struct s3c2410_nand_info;
> * @scan_res: The result from calling nand_scan_ident().
> */
> struct s3c2410_nand_mtd {
> - struct mtd_info mtd;
> struct nand_chip chip;
> struct s3c2410_nand_set *set;
> struct s3c2410_nand_info *info;
> @@ -168,7 +167,8 @@ struct s3c2410_nand_info {
>
> static struct s3c2410_nand_mtd *s3c2410_nand_mtd_toours(struct mtd_info *mtd)
> {
> - return container_of(mtd, struct s3c2410_nand_mtd, mtd);
> + return container_of(mtd_to_nand(mtd), struct s3c2410_nand_mtd,
> + chip);
> }
>
> static struct s3c2410_nand_info *s3c2410_nand_mtd_toinfo(struct mtd_info *mtd)
> @@ -745,7 +745,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev)
>
> for (mtdno = 0; mtdno < info->mtd_count; mtdno++, ptr++) {
> pr_debug("releasing mtd %d (%p)\n", mtdno, ptr);
> - nand_release(&ptr->mtd);
> + nand_release(nand_to_mtd(&ptr->chip));
> }
> }
>
> @@ -762,9 +762,11 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
> struct s3c2410_nand_set *set)
> {
> if (set) {
> - mtd->mtd.name = set->name;
> + struct mtd_info *mtd = nand_to_mtd(&mtd->chip);

You're shadowing the earlier 'mtd' variable:

drivers/mtd/nand/s3c2410.c: In function âs3c2410_nand_add_partitionâ:
drivers/mtd/nand/s3c2410.c:765:42: error: âstruct mtd_infoâ has no member named âchipâ

>
> - return mtd_device_parse_register(&mtd->mtd, NULL, NULL,
> + mtd->name = set->name;
> +
> + return mtd_device_parse_register(mtd, NULL, NULL,
> set->partitions, set->nr_partitions);
> }
>
> @@ -786,6 +788,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
> struct s3c2410_nand_set *set)
> {
> struct nand_chip *chip = &nmtd->chip;
> + struct mtd_info *mtd = nand_to_mtd(chip);
> void __iomem *regs = info->regs;
>
> chip->write_buf = s3c2410_nand_write_buf;
> @@ -831,7 +834,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
> chip->IO_ADDR_R = chip->IO_ADDR_W;
>
> nmtd->info = info;
> - nmtd->mtd.priv = chip;
> + mtd->priv = chip;
> nmtd->set = set;
>
> #ifdef CONFIG_MTD_NAND_S3C2410_HWECC
> @@ -1012,19 +1015,21 @@ static int s3c24xx_nand_probe(struct platform_device *pdev)
> nmtd = info->mtds;
>
> for (setno = 0; setno < nr_sets; setno++, nmtd++) {
> + struct mtd_info *mtd = nand_to_mtd(&nmtd->chip);
> +
> pr_debug("initialising set %d (%p, info %p)\n",
> setno, nmtd, info);
>
> - nmtd->mtd.dev.parent = &pdev->dev;
> + mtd->dev.parent = &pdev->dev;
> s3c2410_nand_init_chip(info, nmtd, sets);
>
> - nmtd->scan_res = nand_scan_ident(&nmtd->mtd,
> + nmtd->scan_res = nand_scan_ident(mtd,
> (sets) ? sets->nr_chips : 1,
> NULL);
>
> if (nmtd->scan_res == 0) {
> s3c2410_nand_update_chip(info, nmtd);
> - nand_scan_tail(&nmtd->mtd);
> + nand_scan_tail(mtd);
> s3c2410_nand_add_partition(info, nmtd, sets);
> }
>

[...]

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