diff options
| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-25 15:31:50 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-31 09:46:14 +0200 |
| commit | 98732da1a08ebb666983d469981a8b994e77d556 (patch) | |
| tree | ec51ec6b17a22edcabea0e7327ccad2ebab26493 /drivers/mtd | |
| parent | mtd: rawnand: txx9ndfmc: convert driver to nand_scan() (diff) | |
| download | linux-98732da1a08ebb666983d469981a8b994e77d556.tar.xz linux-98732da1a08ebb666983d469981a8b994e77d556.zip | |
mtd: rawnand: do not export nand_scan_[ident|tail]() anymore
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 <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/raw/nand_base.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 42a7a934a17b..34ea44f90fd8 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -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) { |