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>

1 files changed, 9 insertions, 78 deletions

diff --git a/drivers/mtd/tests/subpagetest.c b/drivers/mtd/tests/subpagetest.c
index e41a04f5caab..e2c0adf24cfc 100644
--- 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;