From 868f71f60c9d17e6d88fe8f31ca8ac51397ca674 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sat, 8 Sep 2012 01:48:06 +0900 Subject: [PATCH] --- yaml --- r: 332753 b: refs/heads/master c: c092b43906098a6879d0fa9f74e5141516b9b856 h: refs/heads/master i: 332751: 037f87eb89f50e9c8d4c9593d3586e95ab3d2fae v: v3 --- [refs] | 2 +- trunk/drivers/mtd/tests/mtd_nandecctest.c | 18 ++++++++++++++++-- 2 files changed, 17 insertions(+), 3 deletions(-) diff --git a/[refs] b/[refs] index 250cab9af370..884ef007ca1d 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 3cf06f4f85aea715e8caf8540760faff2fbf86d6 +refs/heads/master: c092b43906098a6879d0fa9f74e5141516b9b856 diff --git a/trunk/drivers/mtd/tests/mtd_nandecctest.c b/trunk/drivers/mtd/tests/mtd_nandecctest.c index d3e8873ad38a..d90daf879c46 100644 --- a/trunk/drivers/mtd/tests/mtd_nandecctest.c +++ b/trunk/drivers/mtd/tests/mtd_nandecctest.c @@ -9,11 +9,25 @@ #if defined(CONFIG_MTD_NAND) || defined(CONFIG_MTD_NAND_MODULE) +/* + * The reason for this __change_bit_le() instead of __change_bit() is to inject + * bit error properly within the region which is not a multiple of + * sizeof(unsigned long) on big-endian systems + */ +#ifdef __LITTLE_ENDIAN +#define __change_bit_le(nr, addr) __change_bit(nr, addr) +#elif defined(__BIG_ENDIAN) +#define __change_bit_le(nr, addr) \ + __change_bit((nr) ^ ((BITS_PER_LONG - 1) & ~0x7), addr) +#else +#error "Unknown byte order" +#endif + static void inject_single_bit_error(void *data, size_t size) { - unsigned long offset = random32() % (size * BITS_PER_BYTE); + unsigned int offset = random32() % (size * BITS_PER_BYTE); - __change_bit(offset, data); + __change_bit_le(offset, data); } static void dump_data_ecc(void *error_data, void *error_ecc, void *correct_data,