[v5,1/2] nvdimm, btt: remove unnecessary code in btt_freelist_init

Commit Message

Verma, Vishal L Feb. 28, 2019, 12:06 a.m. UTC

We call btt_log_read() twice, once to get the 'old' log entry, and again
to get the 'new' entry. However, we have no use for the 'old' entry, so
remove it.

Cc: Dan Williams <[e-mail]>
Signed-off-by: Vishal Verma <[e-mail]>
---
 drivers/nvdimm/btt.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

v5: no changes in this patch

Patch

diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index b123b0dcf274..cd4fa87ea48c 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -541,9 +541,9 @@  static int arena_clear_freelist_error(struct arena_info *arena, u32 lane)
 
 static int btt_freelist_init(struct arena_info *arena)
 {
-	int old, new, ret;
+	int new, ret;
 	u32 i, map_entry;
-	struct log_entry log_new, log_old;
+	struct log_entry log_new;
 
 	arena->freelist = kcalloc(arena->nfree, sizeof(struct free_entry),
 					GFP_KERNEL);
@@ -551,10 +551,6 @@  static int btt_freelist_init(struct arena_info *arena)
 		return -ENOMEM;
 
 	for (i = 0; i < arena->nfree; i++) {
-		old = btt_log_read(arena, i, &log_old, LOG_OLD_ENT);
-		if (old < 0)
-			return old;
-
 		new = btt_log_read(arena, i, &log_new, LOG_NEW_ENT);
 		if (new < 0)
 			return new;