1 files changed, 29 insertions, 100 deletions

diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c
index 23e7a5c7d2c1..c54e40464d82 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.");