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path: root/drivers/mtd/tests
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Diffstat (limited to 'drivers/mtd/tests')
-rw-r--r--drivers/mtd/tests/oobtest.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/mtd/tests/oobtest.c b/drivers/mtd/tests/oobtest.c
index 2e9e2d11f204..f19ab1acde1f 100644
--- a/drivers/mtd/tests/oobtest.c
+++ b/drivers/mtd/tests/oobtest.c
@@ -69,8 +69,8 @@ static int write_eraseblock(int ebnum)
int err = 0;
loff_t addr = ebnum * mtd->erasesize;
+ prandom_bytes_state(&rnd_state, writebuf, use_len_max * pgcnt);
for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) {
- prandom_bytes_state(&rnd_state, writebuf, use_len);
ops.mode = MTD_OPS_AUTO_OOB;
ops.len = 0;
ops.retlen = 0;
@@ -78,7 +78,7 @@ static int write_eraseblock(int ebnum)
ops.oobretlen = 0;
ops.ooboffs = use_offset;
ops.datbuf = NULL;
- ops.oobbuf = writebuf;
+ ops.oobbuf = writebuf + (use_len_max * i) + use_offset;
err = mtd_write_oob(mtd, addr, &ops);
if (err || ops.oobretlen != use_len) {
pr_err("error: writeoob failed at %#llx\n",
@@ -122,8 +122,8 @@ static int verify_eraseblock(int ebnum)
int err = 0;
loff_t addr = ebnum * mtd->erasesize;
+ prandom_bytes_state(&rnd_state, writebuf, use_len_max * pgcnt);
for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) {
- prandom_bytes_state(&rnd_state, writebuf, use_len);
ops.mode = MTD_OPS_AUTO_OOB;
ops.len = 0;
ops.retlen = 0;
@@ -139,7 +139,8 @@ static int verify_eraseblock(int ebnum)
errcnt += 1;
return err ? err : -1;
}
- if (memcmp(readbuf, writebuf, use_len)) {
+ if (memcmp(readbuf, writebuf + (use_len_max * i) + use_offset,
+ use_len)) {
pr_err("error: verify failed at %#llx\n",
(long long)addr);
errcnt += 1;
@@ -166,7 +167,9 @@ static int verify_eraseblock(int ebnum)
errcnt += 1;
return err ? err : -1;
}
- if (memcmp(readbuf + use_offset, writebuf, use_len)) {
+ if (memcmp(readbuf + use_offset,
+ writebuf + (use_len_max * i) + use_offset,
+ use_len)) {
pr_err("error: verify failed at %#llx\n",
(long long)addr);
errcnt += 1;
@@ -566,8 +569,8 @@ static int __init mtd_oobtest_init(void)
if (bbt[i] || bbt[i + 1])
continue;
addr = (i + 1) * mtd->erasesize - mtd->writesize;
+ prandom_bytes_state(&rnd_state, writebuf, sz * cnt);
for (pg = 0; pg < cnt; ++pg) {
- prandom_bytes_state(&rnd_state, writebuf, sz);
ops.mode = MTD_OPS_AUTO_OOB;
ops.len = 0;
ops.retlen = 0;
@@ -575,7 +578,7 @@ static int __init mtd_oobtest_init(void)
ops.oobretlen = 0;
ops.ooboffs = 0;
ops.datbuf = NULL;
- ops.oobbuf = writebuf;
+ ops.oobbuf = writebuf + pg * sz;
err = mtd_write_oob(mtd, addr, &ops);
if (err)
goto out;