diff options
Diffstat (limited to 'drivers/md/dm-crypt.c')
| -rw-r--r-- | drivers/md/dm-crypt.c | 45 |
1 files changed, 12 insertions, 33 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index f7369f9d859..13c15480d94 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -1234,20 +1234,6 @@ static int crypt_decode_key(u8 *key, char *hex, unsigned int size) return 0; } -/* - * Encode key into its hex representation - */ -static void crypt_encode_key(char *hex, u8 *key, unsigned int size) -{ - unsigned int i; - - for (i = 0; i < size; i++) { - sprintf(hex, "%02x", *key); - hex += 2; - key++; - } -} - static void crypt_free_tfms(struct crypt_config *cc) { unsigned i; @@ -1651,7 +1637,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) if (opt_params == 1 && opt_string && !strcasecmp(opt_string, "allow_discards")) - ti->num_discard_requests = 1; + ti->num_discard_bios = 1; else if (opt_params) { ret = -EINVAL; ti->error = "Invalid feature arguments"; @@ -1679,7 +1665,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad; } - ti->num_flush_requests = 1; + ti->num_flush_bios = 1; ti->discard_zeroes_data_unsupported = true; return 0; @@ -1717,11 +1703,11 @@ static int crypt_map(struct dm_target *ti, struct bio *bio) return DM_MAPIO_SUBMITTED; } -static int crypt_status(struct dm_target *ti, status_type_t type, - unsigned status_flags, char *result, unsigned maxlen) +static void crypt_status(struct dm_target *ti, status_type_t type, + unsigned status_flags, char *result, unsigned maxlen) { struct crypt_config *cc = ti->private; - unsigned int sz = 0; + unsigned i, sz = 0; switch (type) { case STATUSTYPE_INFO: @@ -1731,27 +1717,20 @@ static int crypt_status(struct dm_target *ti, status_type_t type, case STATUSTYPE_TABLE: DMEMIT("%s ", cc->cipher_string); - if (cc->key_size > 0) { - if ((maxlen - sz) < ((cc->key_size << 1) + 1)) - return -ENOMEM; - - crypt_encode_key(result + sz, cc->key, cc->key_size); - sz += cc->key_size << 1; - } else { - if (sz >= maxlen) - return -ENOMEM; - result[sz++] = '-'; - } + if (cc->key_size > 0) + for (i = 0; i < cc->key_size; i++) + DMEMIT("%02x", cc->key[i]); + else + DMEMIT("-"); DMEMIT(" %llu %s %llu", (unsigned long long)cc->iv_offset, cc->dev->name, (unsigned long long)cc->start); - if (ti->num_discard_requests) + if (ti->num_discard_bios) DMEMIT(" 1 allow_discards"); break; } - return 0; } static void crypt_postsuspend(struct dm_target *ti) @@ -1845,7 +1824,7 @@ static int crypt_iterate_devices(struct dm_target *ti, static struct target_type crypt_target = { .name = "crypt", - .version = {1, 12, 0}, + .version = {1, 12, 1}, .module = THIS_MODULE, .ctr = crypt_ctr, .dtr = crypt_dtr, |