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Subject[PATCH 5/6] lightnvm: pblk: print incompatible line version correctly
Correct it by coverting little endian to cpu endian and also define a
macro for line version so that maintenance is easy.

Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
---
drivers/lightnvm/pblk-core.c | 2 +-
drivers/lightnvm/pblk-recovery.c | 4 ++--
drivers/lightnvm/pblk.h | 1 +
3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 74ddb30..57583a1 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -991,7 +991,7 @@ static int pblk_line_init_metadata(struct pblk *pblk, struct pblk_line *line,
memcpy(smeta_buf->header.uuid, pblk->instance_uuid, 16);
smeta_buf->header.id = cpu_to_le32(line->id);
smeta_buf->header.type = cpu_to_le16(line->type);
- smeta_buf->header.version = cpu_to_le16(1);
+ smeta_buf->header.version = SMETA_VERSION;

/* Start metadata */
smeta_buf->seq_nr = cpu_to_le64(line->seq_nr);
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index 1869eef..686bc17 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -876,9 +876,9 @@ struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
if (le32_to_cpu(smeta_buf->header.identifier) != PBLK_MAGIC)
continue;

- if (le16_to_cpu(smeta_buf->header.version) != 1) {
+ if (smeta_buf->header.version != SMETA_VERSION) {
pr_err("pblk: found incompatible line version %u\n",
- smeta_buf->header.version);
+ le16_to_cpu(smeta_buf->header.version));
return ERR_PTR(-EINVAL);
}

diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index eaf5397..87b1d7f 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -318,6 +318,7 @@ enum {
};

#define PBLK_MAGIC 0x70626c6b /*pblk*/
+#define SMETA_VERSION cpu_to_le16(1)

struct line_header {
__le32 crc;
--
2.5.0
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