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path: root/drivers/mtd/mtdconcat.c
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Diffstat (limited to 'drivers/mtd/mtdconcat.c')
-rw-r--r--drivers/mtd/mtdconcat.c116
1 files changed, 0 insertions, 116 deletions
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index a6fcee2713b..6d52137988f 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -143,116 +143,6 @@ concat_write(struct mtd_info *mtd, loff_t to, size_t len,
143} 143}
144 144
145static int 145static int
146concat_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
147 size_t * retlen, u_char * buf, u_char * eccbuf,
148 struct nand_oobinfo *oobsel)
149{
150 struct mtd_concat *concat = CONCAT(mtd);
151 int err = -EINVAL;
152 int i;
153
154 *retlen = 0;
155
156 for (i = 0; i < concat->num_subdev; i++) {
157 struct mtd_info *subdev = concat->subdev[i];
158 size_t size, retsize;
159
160 if (from >= subdev->size) {
161 /* Not destined for this subdev */
162 size = 0;
163 from -= subdev->size;
164 continue;
165 }
166
167 if (from + len > subdev->size)
168 /* First part goes into this subdev */
169 size = subdev->size - from;
170 else
171 /* Entire transaction goes into this subdev */
172 size = len;
173
174 if (subdev->read_ecc)
175 err = subdev->read_ecc(subdev, from, size,
176 &retsize, buf, eccbuf, oobsel);
177 else
178 err = -EINVAL;
179
180 if (err)
181 break;
182
183 *retlen += retsize;
184 len -= size;
185 if (len == 0)
186 break;
187
188 err = -EINVAL;
189 buf += size;
190 if (eccbuf) {
191 eccbuf += subdev->oobsize;
192 /* in nand.c at least, eccbufs are
193 tagged with 2 (int)eccstatus'; we
194 must account for these */
195 eccbuf += 2 * (sizeof (int));
196 }
197 from = 0;
198 }
199 return err;
200}
201
202static int
203concat_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
204 size_t * retlen, const u_char * buf, u_char * eccbuf,
205 struct nand_oobinfo *oobsel)
206{
207 struct mtd_concat *concat = CONCAT(mtd);
208 int err = -EINVAL;
209 int i;
210
211 if (!(mtd->flags & MTD_WRITEABLE))
212 return -EROFS;
213
214 *retlen = 0;
215
216 for (i = 0; i < concat->num_subdev; i++) {
217 struct mtd_info *subdev = concat->subdev[i];
218 size_t size, retsize;
219
220 if (to >= subdev->size) {
221 size = 0;
222 to -= subdev->size;
223 continue;
224 }
225 if (to + len > subdev->size)
226 size = subdev->size - to;
227 else
228 size = len;
229
230 if (!(subdev->flags & MTD_WRITEABLE))
231 err = -EROFS;
232 else if (subdev->write_ecc)
233 err = subdev->write_ecc(subdev, to, size,
234 &retsize, buf, eccbuf, oobsel);
235 else
236 err = -EINVAL;
237
238 if (err)
239 break;
240
241 *retlen += retsize;
242 len -= size;
243 if (len == 0)
244 break;
245
246 err = -EINVAL;
247 buf += size;
248 if (eccbuf)
249 eccbuf += subdev->oobsize;
250 to = 0;
251 }
252 return err;
253}
254
255static int
256concat_writev(struct mtd_info *mtd, const struct kvec *vecs, 146concat_writev(struct mtd_info *mtd, const struct kvec *vecs,
257 unsigned long count, loff_t to, size_t * retlen) 147 unsigned long count, loff_t to, size_t * retlen)
258{ 148{
@@ -823,10 +713,6 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c
823 concat->mtd.oobsize = subdev[0]->oobsize; 713 concat->mtd.oobsize = subdev[0]->oobsize;
824 concat->mtd.ecctype = subdev[0]->ecctype; 714 concat->mtd.ecctype = subdev[0]->ecctype;
825 concat->mtd.eccsize = subdev[0]->eccsize; 715 concat->mtd.eccsize = subdev[0]->eccsize;
826 if (subdev[0]->read_ecc)
827 concat->mtd.read_ecc = concat_read_ecc;
828 if (subdev[0]->write_ecc)
829 concat->mtd.write_ecc = concat_write_ecc;
830 if (subdev[0]->writev) 716 if (subdev[0]->writev)
831 concat->mtd.writev = concat_writev; 717 concat->mtd.writev = concat_writev;
832 if (subdev[0]->read_oob) 718 if (subdev[0]->read_oob)
@@ -869,8 +755,6 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c
869 concat->mtd.oobsize != subdev[i]->oobsize || 755 concat->mtd.oobsize != subdev[i]->oobsize ||
870 concat->mtd.ecctype != subdev[i]->ecctype || 756 concat->mtd.ecctype != subdev[i]->ecctype ||
871 concat->mtd.eccsize != subdev[i]->eccsize || 757 concat->mtd.eccsize != subdev[i]->eccsize ||
872 !concat->mtd.read_ecc != !subdev[i]->read_ecc ||
873 !concat->mtd.write_ecc != !subdev[i]->write_ecc ||
874 !concat->mtd.read_oob != !subdev[i]->read_oob || 758 !concat->mtd.read_oob != !subdev[i]->read_oob ||
875 !concat->mtd.write_oob != !subdev[i]->write_oob) { 759 !concat->mtd.write_oob != !subdev[i]->write_oob) {
876 kfree(concat); 760 kfree(concat);