1 files changed, 29 insertions, 100 deletions

diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c
index 23e7a5c7d2c..c54e40464d8 100644
--- a/drivers/mtd/devices/doc2000.c
+++ b/drivers/mtd/devices/doc2000.c
@@ -59,13 +59,10 @@ static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
 			size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
 static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
 			 size_t *retlen, const u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
-static int doc_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
-			  unsigned long count, loff_t to, size_t *retlen,
-			  u_char *eccbuf, struct nand_oobinfo *oobsel);
-static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
-			size_t *retlen, u_char *buf);
-static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
-			 size_t *retlen, const u_char *buf);
+static int doc_read_oob(struct mtd_info *mtd, loff_t ofs,
+			struct mtd_oob_ops *ops);
+static int doc_write_oob(struct mtd_info *mtd, loff_t ofs,
+			 struct mtd_oob_ops *ops);
 static int doc_write_oob_nolock(struct mtd_info *mtd, loff_t ofs, size_t len,
 			 size_t *retlen, const u_char *buf);
 static int doc_erase (struct mtd_info *mtd, struct erase_info *instr);
@@ -517,16 +514,9 @@ static int DoC2k_is_alias(struct DiskOnChip *doc1, struct DiskOnChip *doc2)
 	return retval;
 }
 
-static const char im_name[] = "DoC2k_init";
-
-/* This routine is made available to other mtd code via
- * inter_module_register.  It must only be accessed through
- * inter_module_get which will bump the use count of this module.  The
- * addresses passed back in mtd are valid as long as the use count of
- * this module is non-zero, i.e. between inter_module_get and
- * inter_module_put.  Keith Owens <kaos@ocs.com.au> 29 Oct 2000.
- */
-static void DoC2k_init(struct mtd_info *mtd)
+/* This routine is found from the docprobe code by symbol_get(),
+ * which will bump the use count of this module. */
+void DoC2k_init(struct mtd_info *mtd)
 {
 	struct DiskOnChip *this = mtd->priv;
 	struct DiskOnChip *old = NULL;
@@ -586,7 +576,7 @@ static void DoC2k_init(struct mtd_info *mtd)
 	mtd->ecctype = MTD_ECC_RS_DiskOnChip;
 	mtd->size = 0;
 	mtd->erasesize = 0;
-	mtd->oobblock = 512;
+	mtd->writesize = 512;
 	mtd->oobsize = 16;
 	mtd->owner = THIS_MODULE;
 	mtd->erase = doc_erase;
@@ -594,9 +584,6 @@ static void DoC2k_init(struct mtd_info *mtd)
 	mtd->unpoint = NULL;
 	mtd->read = doc_read;
 	mtd->write = doc_write;
-	mtd->read_ecc = doc_read_ecc;
-	mtd->write_ecc = doc_write_ecc;
-	mtd->writev_ecc = doc_writev_ecc;
 	mtd->read_oob = doc_read_oob;
 	mtd->write_oob = doc_write_oob;
 	mtd->sync = NULL;
@@ -623,6 +610,7 @@ static void DoC2k_init(struct mtd_info *mtd)
 		return;
 	}
 }
+EXPORT_SYMBOL_GPL(DoC2k_init);
 
 static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
 		    size_t * retlen, u_char * buf)
@@ -971,72 +959,18 @@ static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
 	return 0;
 }
 
-static int doc_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
-			  unsigned long count, loff_t to, size_t *retlen,
-			  u_char *eccbuf, struct nand_oobinfo *oobsel)
-{
-	static char static_buf[512];
-	static DEFINE_MUTEX(writev_buf_mutex);
-
-	size_t totretlen = 0;
-	size_t thisvecofs = 0;
-	int ret= 0;
-
-	mutex_lock(&writev_buf_mutex);
-
-	while(count) {
-		size_t thislen, thisretlen;
-		unsigned char *buf;
-
-		buf = vecs->iov_base + thisvecofs;
-		thislen = vecs->iov_len - thisvecofs;
-
-
-		if (thislen >= 512) {
-			thislen = thislen & ~(512-1);
-			thisvecofs += thislen;
-		} else {
-			/* Not enough to fill a page. Copy into buf */
-			memcpy(static_buf, buf, thislen);
-			buf = &static_buf[thislen];
-
-			while(count && thislen < 512) {
-				vecs++;
-				count--;
-				thisvecofs = min((512-thislen), vecs->iov_len);
-				memcpy(buf, vecs->iov_base, thisvecofs);
-				thislen += thisvecofs;
-				buf += thisvecofs;
-			}
-			buf = static_buf;
-		}
-		if (count && thisvecofs == vecs->iov_len) {
-			thisvecofs = 0;
-			vecs++;
-			count--;
-		}
-		ret = doc_write_ecc(mtd, to, thislen, &thisretlen, buf, eccbuf, oobsel);
-
-		totretlen += thisretlen;
-
-		if (ret || thisretlen != thislen)
-			break;
-
-		to += thislen;
-	}
-
-	mutex_unlock(&writev_buf_mutex);
-	*retlen = totretlen;
-	return ret;
-}
-
-
-static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
-			size_t * retlen, u_char * buf)
+static int doc_read_oob(struct mtd_info *mtd, loff_t ofs,
+			struct mtd_oob_ops *ops)
 {
 	struct DiskOnChip *this = mtd->priv;
 	int len256 = 0, ret;
 	struct Nand *mychip;
+	uint8_t *buf = ops->oobbuf;
+	size_t len = ops->len;
+
+	BUG_ON(ops->mode != MTD_OOB_PLACE);
+
+	ofs += ops->ooboffs;
 
 	mutex_lock(&this->lock);
 
@@ -1077,7 +1011,7 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
 
 	DoC_ReadBuf(this, &buf[len256], len - len256);
 
-	*retlen = len;
+	ops->retlen = len;
 	/* Reading the full OOB data drops us off of the end of the page,
          * causing the flash device to go into busy mode, so we need
          * to wait until ready 11.4.1 and Toshiba TC58256FT docs */
@@ -1192,17 +1126,20 @@ static int doc_write_oob_nolock(struct mtd_info *mtd, loff_t ofs, size_t len,
 
 }
 
-static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
- 			 size_t * retlen, const u_char * buf)
+static int doc_write_oob(struct mtd_info *mtd, loff_t ofs,
+			 struct mtd_oob_ops *ops)
 {
- 	struct DiskOnChip *this = mtd->priv;
- 	int ret;
+	struct DiskOnChip *this = mtd->priv;
+	int ret;
 
- 	mutex_lock(&this->lock);
- 	ret = doc_write_oob_nolock(mtd, ofs, len, retlen, buf);
+	BUG_ON(ops->mode != MTD_OOB_PLACE);
+
+	mutex_lock(&this->lock);
+	ret = doc_write_oob_nolock(mtd, ofs + ops->ooboffs, ops->len,
+				   &ops->retlen, ops->oobbuf);
 
- 	mutex_unlock(&this->lock);
- 	return ret;
+	mutex_unlock(&this->lock);
+	return ret;
 }
 
 static int doc_erase(struct mtd_info *mtd, struct erase_info *instr)
@@ -1277,12 +1214,6 @@ static int doc_erase(struct mtd_info *mtd, struct erase_info *instr)
  *
  ****************************************************************************/
 
-static int __init init_doc2000(void)
-{
-       inter_module_register(im_name, THIS_MODULE, &DoC2k_init);
-       return 0;
-}
-
 static void __exit cleanup_doc2000(void)
 {
 	struct mtd_info *mtd;
@@ -1298,11 +1229,9 @@ static void __exit cleanup_doc2000(void)
 		kfree(this->chips);
 		kfree(mtd);
 	}
-	inter_module_unregister(im_name);
 }
 
 module_exit(cleanup_doc2000);
-module_init(init_doc2000);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org> et al.");