mtd: mtd_subpagetest: use mtd_test helpers

Use mtdtest_scan_for_bad_eraseblocks() and mtdtest_erase_good_eraseblocks()
in mtd_test helpers.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Vikram Narayanan <vikram186@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/tests/subpagetest.c b/drivers/mtd/tests/subpagetest.c
index e41a04f5caab3c8fd4322cc09729f3dd094b3ce4..e2c0adf24cfc35aa6692ff5267b93babc523c69c 100644 (file)
--- a/drivers/mtd/tests/subpagetest.c
+++ b/drivers/mtd/tests/subpagetest.c
@@ -30,6 +30,8 @@
 #include <linux/sched.h>
 #include <linux/random.h>
 
+#include "mtd_test.h"
+
 static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -51,50 +53,6 @@ static inline void clear_data(unsigned char *buf, size_t len)
        memset(buf, 0, len);
 }
 
-static int erase_eraseblock(int ebnum)
-{
-       int err;
-       struct erase_info ei;
-       loff_t addr = ebnum * mtd->erasesize;
-
-       memset(&ei, 0, sizeof(struct erase_info));
-       ei.mtd  = mtd;
-       ei.addr = addr;
-       ei.len  = mtd->erasesize;
-
-       err = mtd_erase(mtd, &ei);
-       if (err) {
-               pr_err("error %d while erasing EB %d\n", err, ebnum);
-               return err;
-       }
-
-       if (ei.state == MTD_ERASE_FAILED) {
-               pr_err("some erase error occurred at EB %d\n",
-                      ebnum);
-               return -EIO;
-       }
-
-       return 0;
-}
-
-static int erase_whole_device(void)
-{
-       int err;
-       unsigned int i;
-
-       pr_info("erasing whole device\n");
-       for (i = 0; i < ebcnt; ++i) {
-               if (bbt[i])
-                       continue;
-               err = erase_eraseblock(i);
-               if (err)
-                       return err;
-               cond_resched();
-       }
-       pr_info("erased %u eraseblocks\n", i);
-       return 0;
-}
-
 static int write_eraseblock(int ebnum)
 {
        size_t written;
@@ -317,36 +275,6 @@ static int verify_all_eraseblocks_ff(void)
        return 0;
 }
 
-static int is_block_bad(int ebnum)
-{
-       loff_t addr = ebnum * mtd->erasesize;
-       int ret;
-
-       ret = mtd_block_isbad(mtd, addr);
-       if (ret)
-               pr_info("block %d is bad\n", ebnum);
-       return ret;
-}
-
-static int scan_for_bad_eraseblocks(void)
-{
-       int i, bad = 0;
-
-       bbt = kzalloc(ebcnt, GFP_KERNEL);
-       if (!bbt)
-               return -ENOMEM;
-
-       pr_info("scanning for bad eraseblocks\n");
-       for (i = 0; i < ebcnt; ++i) {
-               bbt[i] = is_block_bad(i) ? 1 : 0;
-               if (bbt[i])
-                       bad += 1;
-               cond_resched();
-       }
-       pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
-       return 0;
-}
-
 static int __init mtd_subpagetest_init(void)
 {
        int err = 0;
@@ -396,12 +324,15 @@ static int __init mtd_subpagetest_init(void)
        readbuf = kmalloc(bufsize, GFP_KERNEL);
        if (!readbuf)
                goto out;
+       bbt = kzalloc(ebcnt, GFP_KERNEL);
+       if (!bbt)
+               goto out;
 
-       err = scan_for_bad_eraseblocks();
+       err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
        if (err)
                goto out;
 
-       err = erase_whole_device();
+       err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
        if (err)
                goto out;
 
@@ -433,7 +364,7 @@ static int __init mtd_subpagetest_init(void)
        }
        pr_info("verified %u eraseblocks\n", i);
 
-       err = erase_whole_device();
+       err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
        if (err)
                goto out;
 
@@ -471,7 +402,7 @@ static int __init mtd_subpagetest_init(void)
        }
        pr_info("verified %u eraseblocks\n", i);
 
-       err = erase_whole_device();
+       err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
        if (err)
                goto out;