Hi Boris,
On Tue, Oct 21, 2014 at 03:08:41PM +0200, Boris Brezillon wrote:
> +static int sunxi_nand_hw_ecc_ctrl_init(struct mtd_info *mtd,
> + struct nand_ecc_ctrl *ecc,
> + struct device_node *np)
> +{
> + struct nand_ecclayout *layout;
> + int i, j;
> + int ret;
> +
> + ret = sunxi_nand_hw_common_ecc_ctrl_init(mtd, ecc, np);
> + if (ret)
> + return ret;
> +
> + ecc->read_page = sunxi_nfc_hw_ecc_read_page;
> + ecc->write_page = sunxi_nfc_hw_ecc_write_page;
> + layout = ecc->layout;
> +
> + for (i = 0; i < ecc->steps; i++) {
Hmm, did you retest this since changing this to ecc->steps? I think this
won't work, since ecc->steps is only initialized in nand_scan_tail(),
which comes after this. I only recommended the change for the
{read,write}_page() type of functions, not the initialization functions.
[snip the rest]
So I'd suggest the following additional patch, and otherwise, the series
is fine with me. If you give your ack, I can just squash this in and
apply it to my tree:
diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index ea615dc442a4..ccaa8e283388 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -931,6 +931,7 @@ static int sunxi_nand_hw_common_ecc_ctrl_init(struct
mtd_info *mtd,
struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
struct sunxi_nand_hw_ecc *data;
struct nand_ecclayout *layout;
+ int nsectors;
int ret;
int i;
@@ -959,13 +960,14 @@ static int sunxi_nand_hw_common_ecc_ctrl_init(struct
mtd_info *mtd,
ecc->bytes = ALIGN(ecc->bytes, 2);
layout = &data->layout;
+ nsectors = mtd->writesize / ecc->size;
- if (mtd->oobsize < ((ecc->bytes + 4) * ecc->steps)) {
+ if (mtd->oobsize < ((ecc->bytes + 4) * nsectors)) {
ret = -EINVAL;
goto err;
}
- layout->eccbytes = (ecc->bytes * ecc->steps);
+ layout->eccbytes = (ecc->bytes * nsectors);
ecc->layout = layout;
ecc->priv = data;
@@ -988,6 +990,7 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct mtd_info *mtd,
struct device_node *np)
{
struct nand_ecclayout *layout;
+ int nsectors;
int i, j;
int ret;
@@ -998,8 +1001,9 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct mtd_info
*mtd,
ecc->read_page = sunxi_nfc_hw_ecc_read_page;
ecc->write_page = sunxi_nfc_hw_ecc_write_page;
layout = ecc->layout;
+ nsectors = mtd->writesize / ecc->size;
- for (i = 0; i < ecc->steps; i++) {
+ for (i = 0; i < nsectors; i++) {
if (i) {
layout->oobfree[i].offset =
layout->oobfree[i - 1].offset +
@@ -1022,13 +1026,13 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct mtd_info
*mtd,
layout->oobfree[i].length + j;
}
- if (mtd->oobsize > (ecc->bytes + 4) * ecc->steps) {
- layout->oobfree[ecc->steps].offset =
- layout->oobfree[ecc->steps - 1].offset +
- layout->oobfree[ecc->steps - 1].length +
+ if (mtd->oobsize > (ecc->bytes + 4) * nsectors) {
+ layout->oobfree[nsectors].offset =
+ layout->oobfree[nsectors - 1].offset +
+ layout->oobfree[nsectors - 1].length +
ecc->bytes;
- layout->oobfree[ecc->steps].length = mtd->oobsize -
- ((ecc->bytes + 4) * ecc->steps);
+ layout->oobfree[nsectors].length = mtd->oobsize -
+ ((ecc->bytes + 4) * nsectors);
}
return 0;
@@ -1039,6 +1043,7 @@ static int sunxi_nand_hw_syndrome_ecc_ctrl_init(struct
mtd_info *mtd,
struct device_node *np)
{
struct nand_ecclayout *layout;
+ int nsectors;
int i;
int ret;
@@ -1051,8 +1056,9 @@ static int sunxi_nand_hw_syndrome_ecc_ctrl_init(struct
mtd_info *mtd,
ecc->write_page = sunxi_nfc_hw_syndrome_ecc_write_page;
layout = ecc->layout;
+ nsectors = mtd->writesize / ecc->size;
- for (i = 0; i < (ecc->bytes * ecc->steps); i++)
+ for (i = 0; i < (ecc->bytes * nsectors); i++)
layout->eccpos[i] = i;
layout->oobfree[0].length = mtd->oobsize - i;
--
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