[PATCH v1 1/1] dm table: Fix W=1 build warning when mempool_needs_integrity is unused

[Andy Shevchenko]

The mempool_needs_integrity is unused. This, in particular, prevents
kernel builds with Clang, `make W=1` and CONFIG_WERROR=y:

drivers/md/dm-table.c:1052:7: error: variable 'mempool_needs_integrity' set but 
not used [-Werror,-Wunused-but-set-variable]
 1052 |         bool mempool_needs_integrity = t->integrity_supported;
      |              ^

Fix this by removing the leftover.

Fixes: 105ca2a2c2ff ("block: split struct bio_integrity_payload")
Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
 drivers/md/dm-table.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 35100a435c88..53759dbbe9d6 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1049,7 +1049,6 @@ static int dm_table_alloc_md_mempools(struct dm_table *t, 
struct mapped_device *
        unsigned int min_pool_size = 0, pool_size;
        struct dm_md_mempools *pools;
        unsigned int bioset_flags = 0;
-       bool mempool_needs_integrity = t->integrity_supported;
 
        if (unlikely(type == DM_TYPE_NONE)) {
                DMERR("no table type is set, can't allocate mempools");
@@ -1074,8 +1073,6 @@ static int dm_table_alloc_md_mempools(struct dm_table *t, 
struct mapped_device *
 
                per_io_data_size = max(per_io_data_size, ti->per_io_data_size);
                min_pool_size = max(min_pool_size, ti->num_flush_bios);
-
-               mempool_needs_integrity |= ti->mempool_needs_integrity;
        }
        pool_size = max(dm_get_reserved_bio_based_ios(), min_pool_size);
        front_pad = roundup(per_io_data_size,
-- 
2.47.2