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authorThomas Knobloch <knobloch@siemens.com>2007-05-03 02:39:37 -0400
committerDavid Woodhouse <dwmw2@infradead.org>2007-05-03 02:39:37 -0400
commit1a12f46af1af1a4b7b9c7ae7ab2c8ded3481a4ba (patch)
treec0449ee0a2e9d31963798c010152b87048674a69 /drivers/mtd/nand
parent4839f0481d8b985aabd6653ba42cf09e2abcc2bd (diff)
[MTD] [NAND] Tidy up handling of page number in nand_block_bad()
Further to the previous patch fixing the calculation of page number, both branches are using the same result. Clean up the function accordingly, calculating it (and also masking with pagemask) only in one place. Signed-off-by: Thomas Knobloch <knobloch@siemens.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/nand_base.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 04de315e4937..7e68203fe1ba 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -303,28 +303,27 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
303 struct nand_chip *chip = mtd->priv; 303 struct nand_chip *chip = mtd->priv;
304 u16 bad; 304 u16 bad;
305 305
306 page = (int)(ofs >> chip->page_shift) & chip->pagemask;
307
306 if (getchip) { 308 if (getchip) {
307 page = (int)(ofs >> chip->page_shift);
308 chipnr = (int)(ofs >> chip->chip_shift); 309 chipnr = (int)(ofs >> chip->chip_shift);
309 310
310 nand_get_device(chip, mtd, FL_READING); 311 nand_get_device(chip, mtd, FL_READING);
311 312
312 /* Select the NAND device */ 313 /* Select the NAND device */
313 chip->select_chip(mtd, chipnr); 314 chip->select_chip(mtd, chipnr);
314 } else 315 }
315 page = (int)(ofs >> chip->page_shift);
316 316
317 if (chip->options & NAND_BUSWIDTH_16) { 317 if (chip->options & NAND_BUSWIDTH_16) {
318 chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos & 0xFE, 318 chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos & 0xFE,
319 page & chip->pagemask); 319 page);
320 bad = cpu_to_le16(chip->read_word(mtd)); 320 bad = cpu_to_le16(chip->read_word(mtd));
321 if (chip->badblockpos & 0x1) 321 if (chip->badblockpos & 0x1)
322 bad >>= 8; 322 bad >>= 8;
323 if ((bad & 0xFF) != 0xff) 323 if ((bad & 0xFF) != 0xff)
324 res = 1; 324 res = 1;
325 } else { 325 } else {
326 chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos, 326 chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos, page);
327 page & chip->pagemask);
328 if (chip->read_byte(mtd) != 0xff) 327 if (chip->read_byte(mtd) != 0xff)
329 res = 1; 328 res = 1;
330 } 329 }