static int verify_eraseblock(int ebnum)
{
size_t read;
int err = 0;
loff_t addr = ebnum * mtd->erasesize;
prandom_bytes_state(&rnd_state, writebuf, subpgsize);
clear_data(readbuf, subpgsize);
err = mtd_read(mtd, addr, subpgsize, &read, readbuf);
if (unlikely(err || read != subpgsize)) {
if (mtd_is_bitflip(err) && read == subpgsize) {
pr_info("ECC correction at %#llx\n",
(long long)addr);
err = 0;
} else {
pr_err("error: read failed at %#llx\n",
(long long)addr);
return err ? err : -1;
}
}
if (unlikely(memcmp(readbuf, writebuf, subpgsize))) {
pr_err("error: verify failed at %#llx\n",
(long long)addr);
pr_info("------------- written----------------\n");
print_subpage(writebuf);
pr_info("------------- read ------------------\n");
print_subpage(readbuf);
pr_info("-------------------------------------\n");
errcnt += 1;
}
addr += subpgsize;
prandom_bytes_state(&rnd_state, writebuf, subpgsize);
clear_data(readbuf, subpgsize);
err = mtd_read(mtd, addr, subpgsize, &read, readbuf);
if (unlikely(err || read != subpgsize)) {
if (mtd_is_bitflip(err) && read == subpgsize) {
pr_info("ECC correction at %#llx\n",
(long long)addr);
err = 0;
} else {
pr_err("error: read failed at %#llx\n",
(long long)addr);
return err ? err : -1;
}
}
if (unlikely(memcmp(readbuf, writebuf, subpgsize))) {
pr_info("error: verify failed at %#llx\n",
(long long)addr);
pr_info("------------- written----------------\n");
print_subpage(writebuf);
pr_info("------------- read ------------------\n");
print_subpage(readbuf);
pr_info("-------------------------------------\n");
errcnt += 1;
}
return err;
}
static int verify_eraseblock(int ebnum)
{
size_t read = 0;
int err = 0;
loff_t addr = ebnum * mtd->erasesize;
set_random_data(writebuf, subpgsize);
clear_data(readbuf, subpgsize);
read = 0;
err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
if (unlikely(err || read != subpgsize)) {
if (err == -EUCLEAN && read == subpgsize) {
printk(PRINT_PREF "ECC correction at %#llx\n",
(long long)addr);
err = 0;
} else {
printk(PRINT_PREF "error: read failed at %#llx\n",
(long long)addr);
return err ? err : -1;
}
}
if (unlikely(memcmp(readbuf, writebuf, subpgsize))) {
printk(PRINT_PREF "error: verify failed at %#llx\n",
(long long)addr);
printk(PRINT_PREF "------------- written----------------\n");
print_subpage(writebuf);
printk(PRINT_PREF "------------- read ------------------\n");
print_subpage(readbuf);
printk(PRINT_PREF "-------------------------------------\n");
errcnt += 1;
}
addr += subpgsize;
set_random_data(writebuf, subpgsize);
clear_data(readbuf, subpgsize);
read = 0;
err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
if (unlikely(err || read != subpgsize)) {
if (err == -EUCLEAN && read == subpgsize) {
printk(PRINT_PREF "ECC correction at %#llx\n",
(long long)addr);
err = 0;
} else {
printk(PRINT_PREF "error: read failed at %#llx\n",
(long long)addr);
return err ? err : -1;
}
}
if (unlikely(memcmp(readbuf, writebuf, subpgsize))) {
printk(PRINT_PREF "error: verify failed at %#llx\n",
(long long)addr);
printk(PRINT_PREF "------------- written----------------\n");
print_subpage(writebuf);
printk(PRINT_PREF "------------- read ------------------\n");
print_subpage(readbuf);
printk(PRINT_PREF "-------------------------------------\n");
errcnt += 1;
}
return err;
}