mtd: rename random32() to prandom_u32()

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 818b65c85d1293e5e7d31c0d5ad4116f81e54dec..4c317982fce5dd77cf3e4b40009072bc3273a57b 100644 (file)
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -1476,12 +1476,12 @@ int do_read_error(struct nandsim *ns, int num)
 
 void do_bit_flips(struct nandsim *ns, int num)
 {
-       if (bitflips && random32() < (1 << 22)) {
+       if (bitflips && prandom_u32() < (1 << 22)) {
                int flips = 1;
                if (bitflips > 1)
-                       flips = (random32() % (int) bitflips) + 1;
+                       flips = (prandom_u32() % (int) bitflips) + 1;
                while (flips--) {
-                       int pos = random32() % (num * 8);
+                       int pos = prandom_u32() % (num * 8);
                        ns->buf.byte[pos / 8] ^= (1 << (pos % 8));
                        NS_WARN("read_page: flipping bit %d in page %d "
                                "reading from %d ecc: corrected=%u failed=%u\n",

diff --git a/drivers/mtd/tests/mtd_nandecctest.c b/drivers/mtd/tests/mtd_nandecctest.c
index 1eee264509a86cce86421e7fe730dbdf94d79a75..5015d10591d9d02d8a180dbf36d82099d9f6c7e5 100644 (file)
--- a/drivers/mtd/tests/mtd_nandecctest.c
+++ b/drivers/mtd/tests/mtd_nandecctest.c
@@ -44,7 +44,7 @@ struct nand_ecc_test {
 static void single_bit_error_data(void *error_data, void *correct_data,
                                size_t size)
 {
-       unsigned int offset = random32() % (size * BITS_PER_BYTE);
+       unsigned int offset = prandom_u32() % (size * BITS_PER_BYTE);
 
        memcpy(error_data, correct_data, size);
        __change_bit_le(offset, error_data);
@@ -55,9 +55,9 @@ static void double_bit_error_data(void *error_data, void *correct_data,
 {
        unsigned int offset[2];
 
-       offset[0] = random32() % (size * BITS_PER_BYTE);
+       offset[0] = prandom_u32() % (size * BITS_PER_BYTE);
        do {
-               offset[1] = random32() % (size * BITS_PER_BYTE);
+               offset[1] = prandom_u32() % (size * BITS_PER_BYTE);
        } while (offset[0] == offset[1]);
 
        memcpy(error_data, correct_data, size);
@@ -68,7 +68,7 @@ static void double_bit_error_data(void *error_data, void *correct_data,
 
 static unsigned int random_ecc_bit(size_t size)
 {
-       unsigned int offset = random32() % (3 * BITS_PER_BYTE);
+       unsigned int offset = prandom_u32() % (3 * BITS_PER_BYTE);
 
        if (size == 256) {
                /*
@@ -76,7 +76,7 @@ static unsigned int random_ecc_bit(size_t size)
                 * and 17th bit) in ECC code for 256 byte data block
                 */
                while (offset == 16 || offset == 17)
-                       offset = random32() % (3 * BITS_PER_BYTE);
+                       offset = prandom_u32() % (3 * BITS_PER_BYTE);
        }
 
        return offset;

diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c
index 3729f679ae5d08b6abeef036e8932bce79896f76..1d29739db916edc0bb31dbaa0ae2453e0a258cc2 100644 (file)
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/mtd_stresstest.c
@@ -55,7 +55,7 @@ static int rand_eb(void)
        unsigned int eb;
 
 again:
-       eb = random32();
+       eb = prandom_u32();
        /* Read or write up 2 eraseblocks at a time - hence 'ebcnt - 1' */
        eb %= (ebcnt - 1);
        if (bbt[eb])
@@ -67,7 +67,7 @@ static int rand_offs(void)
 {
        unsigned int offs;
 
-       offs = random32();
+       offs = prandom_u32();
        offs %= bufsize;
        return offs;
 }
@@ -76,7 +76,7 @@ static int rand_len(int offs)
 {
        unsigned int len;
 
-       len = random32();
+       len = prandom_u32();
        len %= (bufsize - offs);
        return len;
 }
@@ -191,7 +191,7 @@ static int do_write(void)
 
 static int do_operation(void)
 {
-       if (random32() & 1)
+       if (prandom_u32() & 1)
                return do_read();
        else
                return do_write();

diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h
index 33f8f3b2c9b22ac9909aa6ad07f6a1317873ed7c..cba89fcd15877d92255a7e2fb1f125813f74dbea 100644 (file)
--- a/drivers/mtd/ubi/debug.h
+++ b/drivers/mtd/ubi/debug.h
@@ -86,7 +86,7 @@ static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi)
 static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi)
 {
        if (ubi->dbg.emulate_bitflips)
-               return !(random32() % 200);
+               return !(prandom_u32() % 200);
        return 0;
 }
 
@@ -100,7 +100,7 @@ static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi)
 static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi)
 {
        if (ubi->dbg.emulate_io_failures)
-               return !(random32() % 500);
+               return !(prandom_u32() % 500);
        return 0;
 }
 
@@ -114,7 +114,7 @@ static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi)
 static inline int ubi_dbg_is_erase_failure(const struct ubi_device *ubi)
 {
        if (ubi->dbg.emulate_io_failures)
-               return !(random32() % 400);
+               return !(prandom_u32() % 400);
        return 0;
 }