Commit aca662a3 authored by Akinobu Mita's avatar Akinobu Mita Committed by Artem Bityutskiy
Browse files

mtd: rename random32() to prandom_u32() 



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

Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
parent bd6ce5ef

drivers/mtd/nand/nandsim.c

+3 −3
Original line number Diff line number Diff line
@@ -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",

drivers/mtd/tests/mtd_nandecctest.c

+5 −5
Original line number Diff line number Diff line
@@ -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;

drivers/mtd/tests/mtd_stresstest.c

+4 −4
Original line number Diff line number Diff line
@@ -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();

drivers/mtd/ubi/debug.h

+3 −3
Original line number Diff line number Diff line
@@ -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;

}