From: Kyle Spiers Date: Sat, 17 Mar 2018 16:44:01 +0000 (-0700) Subject: rbd: remove VLA usage X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=08a79102aa373e03ce704621fd84567605214465;p=openwrt%2Fstaging%2Fblogic.git rbd: remove VLA usage As part of the effort to remove VLAs from the kernel[1], this moves the literal values into the stack array calculation instead of using a variable for the sizing. The resulting size can be found from sizeof(buf). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kyle Spiers Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov --- diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index aab513f1fb00..e60a638c2d32 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2683,8 +2683,8 @@ static int __rbd_notify_op_lock(struct rbd_device *rbd_dev, { struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; struct rbd_client_id cid = rbd_get_cid(rbd_dev); - int buf_size = 4 + 8 + 8 + CEPH_ENCODING_START_BLK_LEN; - char buf[buf_size]; + char buf[4 + 8 + 8 + CEPH_ENCODING_START_BLK_LEN]; + int buf_size = sizeof(buf); void *p = buf; dout("%s rbd_dev %p notify_op %d\n", __func__, rbd_dev, notify_op); @@ -3202,8 +3202,8 @@ static void __rbd_acknowledge_notify(struct rbd_device *rbd_dev, u64 notify_id, u64 cookie, s32 *result) { struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; - int buf_size = 4 + CEPH_ENCODING_START_BLK_LEN; - char buf[buf_size]; + char buf[4 + CEPH_ENCODING_START_BLK_LEN]; + int buf_size = sizeof(buf); int ret; if (result) {