[PATCH] null_blk: enable discard support by default

[John Pittman]

Support for discard was added to the null_blk driver in 'commit
306eb6b4ad4f ("nullb: support discard")'.  For ease of use in
benchmarking and target testing, enable this support by default.

Signed-off-by: John Pittman <jpitt...@redhat.com>
---
 drivers/block/null_blk_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c
index 62c9654b9ce8..c4a1db0fb336 100644
--- a/drivers/block/null_blk_main.c
+++ b/drivers/block/null_blk_main.c
@@ -527,6 +527,7 @@ static struct nullb_device *null_alloc_dev(void)
        dev->zoned = g_zoned;
        dev->zone_size = g_zone_size;
        dev->zone_nr_conv = g_zone_nr_conv;
+       dev->discard = true;
        return dev;
 }
 
-- 
2.17.2