linux-kernel - [PATCH 1/2] block: Silence spurious compiler warnings

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Message-Id: <1386105848-25660-2-git-send-email-kmo@daterainc.com>
Date:	Tue,  3 Dec 2013 13:24:07 -0800
From:	Kent Overstreet <kmo@...erainc.com>
To:	axboe@...nel.dk
Cc:	linux-kernel@...r.kernel.org, Kent Overstreet <kmo@...erainc.com>
Subject: [PATCH 1/2] block: Silence spurious compiler warnings

The uninitialized_var() macro appears to not work on structs...

Signed-off-by: Kent Overstreet <kmo@...erainc.com>
---
 block/blk-merge.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/block/blk-merge.c b/block/blk-merge.c
index 05c17be..8f8adaa 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -86,7 +86,7 @@ EXPORT_SYMBOL(blk_recount_segments);
 static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio,
 				   struct bio *nxt)
 {
-	struct bio_vec end_bv, nxt_bv;
+	struct bio_vec end_bv = { NULL }, nxt_bv;
 	struct bvec_iter iter;
 
 	if (!blk_queue_cluster(q))
@@ -168,7 +168,7 @@ new_segment:
 int blk_rq_map_sg(struct request_queue *q, struct request *rq,
 		  struct scatterlist *sglist)
 {
-	struct bio_vec bvec, bvprv;
+	struct bio_vec bvec, bvprv = { NULL };
 	struct req_iterator iter;
 	struct scatterlist *sg;
 	int nsegs, cluster;
@@ -230,7 +230,7 @@ EXPORT_SYMBOL(blk_rq_map_sg);
 int blk_bio_map_sg(struct request_queue *q, struct bio *bio,
 		   struct scatterlist *sglist)
 {
-	struct bio_vec bvec, bvprv;
+	struct bio_vec bvec, bvprv = { NULL };
 	struct scatterlist *sg;
 	int nsegs, cluster;
 	struct bvec_iter iter;
-- 
1.8.4.4

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