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mtd: rawnand: do not export nand_scan_[ident|tail]() anymore

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Both nand_scan_ident() and nand_scan_tail() helpers used to be called
directly from controller drivers that needed to tweak some ECC-related
parameters before nand_scan_tail(). This separation prevented dynamic
allocations during the phase of NAND identification, which was
inconvenient.

All controller drivers have been moved to use nand_scan(), in
conjunction with the chip->ecc.[attach|detach]_chip() hooks that
actually do the required tweaking sequence between both ident/tail
calls, allowing programmers to use dynamic allocation as they need all
across the scanning sequence.

Declare nand_scan_[ident|tail]() statically now.

Signed-off-by: Miquel Raynal <[email protected]>
Reviewed-by: Boris Brezillon <[email protected]>
This commit is contained in:
Miquel Raynal 2018-07-25 15:31:50 +02:00
commit 98732da1a0
2 changed files with 15 additions and 19 deletions
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16
drivers/mtd/nand/raw/nand_base.c
View file

@ -5924,7 +5924,7 @@ static int nand_dt_init(struct nand_chip *chip)
}
/**
* nand_scan_ident - [NAND Interface] Scan for the NAND device
* nand_scan_ident - Scan for the NAND device
* @mtd: MTD device structure
* @maxchips: number of chips to scan for
* @table: alternative NAND ID table
@ -5932,9 +5932,13 @@ static int nand_dt_init(struct nand_chip *chip)
* This is the first phase of the normal nand_scan() function. It reads the
* flash ID and sets up MTD fields accordingly.
*
* This helper used to be called directly from controller drivers that needed
* to tweak some ECC-related parameters before nand_scan_tail(). This separation
* prevented dynamic allocations during this phase which was unconvenient and
* as been banned for the benefit of the ->init_ecc()/cleanup_ecc() hooks.
*/
int nand_scan_ident(struct mtd_info *mtd, int maxchips,
struct nand_flash_dev *table)
static int nand_scan_ident(struct mtd_info *mtd, int maxchips,
struct nand_flash_dev *table)
{
int i, nand_maf_id, nand_dev_id;
struct nand_chip *chip = mtd_to_nand(mtd);
@ -6008,7 +6012,6 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
return 0;
}
EXPORT_SYMBOL(nand_scan_ident);
static int nand_set_ecc_soft_ops(struct mtd_info *mtd)
{
@ -6385,14 +6388,14 @@ static bool nand_ecc_strength_good(struct mtd_info *mtd)
}
/**
* nand_scan_tail - [NAND Interface] Scan for the NAND device
* nand_scan_tail - Scan for the NAND device
* @mtd: MTD device structure
*
* This is the second phase of the normal nand_scan() function. It fills out
* all the uninitialized function pointers with the defaults and scans for a
* bad block table if appropriate.
*/
int nand_scan_tail(struct mtd_info *mtd)
static int nand_scan_tail(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd_to_nand(mtd);
struct nand_ecc_ctrl *ecc = &chip->ecc;
@ -6716,7 +6719,6 @@ err_free_buf:
return ret;
}
EXPORT_SYMBOL(nand_scan_tail);
static int nand_attach(struct nand_chip *chip)
{