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authorArnd Bergmann <arnd@arndb.de>2020-01-07 22:01:04 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-02-24 08:36:59 +0100
commit1687b204ae832bdde020b4aac289817a69e6954e (patch)
tree349eb5d87769c27640d1d61402621a58057f3dc7 /drivers/block
parentbd4e1894166b980cb945d4aa01eab3b39e18b933 (diff)
rbd: work around -Wuninitialized warning
[ Upstream commit a55e601b2f02df5db7070e9a37bd655c9c576a52 ] gcc -O3 warns about a dummy variable that is passed down into rbd_img_fill_nodata without being initialized: drivers/block/rbd.c: In function 'rbd_img_fill_nodata': drivers/block/rbd.c:2573:13: error: 'dummy' is used uninitialized in this function [-Werror=uninitialized] fctx->iter = *fctx->pos; Since this is a dummy, I assume the warning is harmless, but it's better to initialize it anyway and avoid the warning. Fixes: mmtom ("init/Kconfig: enable -O3 for all arches") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/rbd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 13527a0b4e44..a67315786db4 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2739,7 +2739,7 @@ static int rbd_img_fill_nodata(struct rbd_img_request *img_req,
u64 off, u64 len)
{
struct ceph_file_extent ex = { off, len };
- union rbd_img_fill_iter dummy;
+ union rbd_img_fill_iter dummy = {};
struct rbd_img_fill_ctx fctx = {
.pos_type = OBJ_REQUEST_NODATA,
.pos = &dummy,