From: Huaisheng Ye <ye...@lenovo.com> Function persistent_memory_claim doesn't need to get local pointer dummy_addr from direct_access. Using NULL instead of having to pass in a useless local pointer that caller then just throw away.
Suggested-by: Ross Zwisler <ross.zwis...@linux.intel.com> Signed-off-by: Huaisheng Ye <ye...@lenovo.com> Reviewed-by: Ross Zwisler <ross.zwis...@linux.intel.com> Acked-by: Mike Snitzer <snit...@redhat.com> --- drivers/md/dm-writecache.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c index 87107c9..9d79084 100644 --- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -268,9 +268,8 @@ static int persistent_memory_claim(struct dm_writecache *wc) i = 0; do { long daa; - void *dummy_addr; daa = dax_direct_access(wc->ssd_dev->dax_dev, i, p - i, - &dummy_addr, &pfn); + NULL, &pfn); if (daa <= 0) { r = daa ? daa : -EINVAL; goto err3; -- 1.8.3.1 -- dm-devel mailing list dm-devel@redhat.com https://www.redhat.com/mailman/listinfo/dm-devel