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Message-Id: <1356315256-6572-18-git-send-email-akinobu.mita@gmail.com>
Date: Mon, 24 Dec 2012 11:14:04 +0900
From: Akinobu Mita <akinobu.mita@...il.com>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Cc: Akinobu Mita <akinobu.mita@...il.com>,
David Woodhouse <dwmw2@...radead.org>,
Artem Bityutskiy <dedekind1@...il.com>,
linux-mtd@...ts.infradead.org
Subject: [PATCH 17/29] 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@...il.com>
Cc: David Woodhouse <dwmw2@...radead.org>
Cc: Artem Bityutskiy <dedekind1@...il.com>
Cc: linux-mtd@...ts.infradead.org
---
drivers/mtd/nand/nandsim.c | 6 +++---
drivers/mtd/tests/mtd_nandecctest.c | 10 +++++-----
drivers/mtd/tests/mtd_stresstest.c | 8 ++++----
drivers/mtd/ubi/debug.h | 6 +++---
4 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 818b65c..4c31798 100644
--- 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 ceb261f..2e6b41e 100644
--- a/drivers/mtd/tests/mtd_nandecctest.c
+++ b/drivers/mtd/tests/mtd_nandecctest.c
@@ -43,7 +43,7 @@ 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);
@@ -54,9 +54,9 @@ 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);
@@ -67,7 +67,7 @@ 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) {
/*
@@ -75,7 +75,7 @@ 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 dc89e32..4e9fc1f 100644
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/mtd_stresstest.c
@@ -57,7 +57,7 @@ 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])
@@ -69,7 +69,7 @@ static int rand_offs(void)
{
unsigned int offs;
- offs = random32();
+ offs = prandom_u32();
offs %= bufsize;
return offs;
}
@@ -78,7 +78,7 @@ static int rand_len(int offs)
{
unsigned int len;
- len = random32();
+ len = prandom_u32();
len %= (bufsize - offs);
return len;
}
@@ -148,7 +148,7 @@ 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 33f8f3b..cba89fc 100644
--- 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;
}
--
1.7.11.7
--
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