Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 06/14] block: drop double zeroing | Date | Sun, 20 Sep 2020 13:26:18 +0200 |
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sg_init_table zeroes its first argument, so the allocation of that argument doesn't have to.
the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ expression x; @@
x = - kzalloc + kmalloc (...) ... sg_init_table(x,...) // </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
--- block/bsg-lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff -u -p a/block/bsg-lib.c b/block/bsg-lib.c --- a/block/bsg-lib.c +++ b/block/bsg-lib.c @@ -207,7 +207,7 @@ static int bsg_map_buffer(struct bsg_buf BUG_ON(!req->nr_phys_segments); - buf->sg_list = kzalloc(sz, GFP_KERNEL); + buf->sg_list = kmalloc(sz, GFP_KERNEL); if (!buf->sg_list) return -ENOMEM; sg_init_table(buf->sg_list, req->nr_phys_segments);
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