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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 16:33:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 16:33:54 -0800
commit48476df99894492a0f7239f2f3c9a2dde4ff38e2 (patch)
tree5a1b80f20449968f0de6e5bfbcda5e360e31ba1f /drivers/mtd/tests
parent37cae6ad4c484030fa972241533c32730ec79b7d (diff)
parent24dea0c9feccf699749f860fa2f4ccd84d30390d (diff)
Merge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd
Pull MTD update from David Woodhouse: "Fairly unexciting MTD merge for 3.9: - misc clean-ups in the MTD command-line partitioning parser (cmdlinepart) - add flash locking support for STmicro chips serial flash chips, as well as for CFI command set 2 chips. - new driver for the ELM error correction HW module found in various TI chips, enable the OMAP NAND driver to use the ELM HW error correction - added number of new serial flash IDs - various fixes and improvements in the gpmi NAND driver - bcm47xx NAND driver improvements - make the mtdpart module actually removable" * tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd: (45 commits) mtd: map: BUG() in non handled cases mtd: bcm47xxnflash: use pr_fmt for module prefix in messages mtd: davinci_nand: Use managed resources mtd: mtd_torturetest can cause stack overflows mtd: physmap_of: Convert device allocation to managed devm_kzalloc() mtd: at91: atmel_nand: for PMECC, add code to check the ONFI parameter ECC requirement. mtd: atmel_nand: make pmecc-cap, pmecc-sector-size in dts is optional. mtd: atmel_nand: avoid to report an error when lookup table offset is 0. mtd: bcm47xxsflash: adjust names of bus-specific functions mtd: bcm47xxpart: improve probing of nvram partition mtd: bcm47xxpart: add support for other erase sizes mtd: bcm47xxnflash: register this as normal driver mtd: bcm47xxnflash: fix message mtd: bcm47xxsflash: register this as normal driver mtd: bcm47xxsflash: write number of written bytes mtd: gpmi: add sanity check for the ECC mtd: gpmi: set the Golois Field bit for mx6q's BCH mtd: devices: elm: Removes <xx> literals in elm DT node mtd: gpmi: fix a dereferencing freed memory error mtd: fix the wrong timeo for panic_nand_wait() ...
Diffstat (limited to 'drivers/mtd/tests')
-rw-r--r--drivers/mtd/tests/mtd_nandecctest.c10
-rw-r--r--drivers/mtd/tests/mtd_stresstest.c8
-rw-r--r--drivers/mtd/tests/mtd_torturetest.c25
3 files changed, 20 insertions, 23 deletions
diff --git a/drivers/mtd/tests/mtd_nandecctest.c b/drivers/mtd/tests/mtd_nandecctest.c
index db2f22e7966..70106607c24 100644
--- 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 2d7e6cffd6d..787f539d16c 100644
--- 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/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c
index c4cde1e9edd..3a9f6a6a79f 100644
--- a/drivers/mtd/tests/mtd_torturetest.c
+++ b/drivers/mtd/tests/mtd_torturetest.c
@@ -208,7 +208,7 @@ static inline int write_pattern(int ebnum, void *buf)
static int __init tort_init(void)
{
int err = 0, i, infinite = !cycles_count;
- int bad_ebs[ebcnt];
+ int *bad_ebs;
printk(KERN_INFO "\n");
printk(KERN_INFO "=================================================\n");
@@ -250,28 +250,24 @@ static int __init tort_init(void)
err = -ENOMEM;
patt_5A5 = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!patt_5A5) {
- pr_err("error: cannot allocate memory\n");
+ if (!patt_5A5)
goto out_mtd;
- }
patt_A5A = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!patt_A5A) {
- pr_err("error: cannot allocate memory\n");
+ if (!patt_A5A)
goto out_patt_5A5;
- }
patt_FF = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!patt_FF) {
- pr_err("error: cannot allocate memory\n");
+ if (!patt_FF)
goto out_patt_A5A;
- }
check_buf = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!check_buf) {
- pr_err("error: cannot allocate memory\n");
+ if (!check_buf)
goto out_patt_FF;
- }
+
+ bad_ebs = kcalloc(ebcnt, sizeof(*bad_ebs), GFP_KERNEL);
+ if (!bad_ebs)
+ goto out_check_buf;
err = 0;
@@ -290,7 +286,6 @@ static int __init tort_init(void)
/*
* Check if there is a bad eraseblock among those we are going to test.
*/
- memset(&bad_ebs[0], 0, sizeof(int) * ebcnt);
if (mtd_can_have_bb(mtd)) {
for (i = eb; i < eb + ebcnt; i++) {
err = mtd_block_isbad(mtd, (loff_t)i * mtd->erasesize);
@@ -394,6 +389,8 @@ out:
pr_info("finished after %u erase cycles\n",
erase_cycles);
+ kfree(bad_ebs);
+out_check_buf:
kfree(check_buf);
out_patt_FF:
kfree(patt_FF);