From 68f8bf21c72515adcdd41ac6f8dbebb29259aeb7 Mon Sep 17 00:00:00 2001
From: Andrew Scull <ascull@google.com>
Date: Mon, 16 May 2022 10:41:29 +0000
Subject: [PATCH] virtio_ring: Merge identical variables
The variables `total_sg` and `descs_used` have the same value. Replace
the few uses of `total_sg` with `descs_used` to simplify the situation.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---
drivers/virtio/virtio_ring.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 7f1cbc5932..a6922ce1b8 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -20,17 +20,16 @@ int virtqueue_add(struct virtqueue *vq, struct virtio_sg *sgs[],
unsigned int out_sgs, unsigned int in_sgs)
{
struct vring_desc *desc;
- unsigned int total_sg = out_sgs + in_sgs;
- unsigned int i, n, avail, descs_used, uninitialized_var(prev);
+ unsigned int descs_used = out_sgs + in_sgs;
+ unsigned int i, n, avail, uninitialized_var(prev);
int head;
- WARN_ON(total_sg == 0);
+ WARN_ON(descs_used == 0);
head = vq->free_head;
desc = vq->vring.desc;
i = head;
- descs_used = total_sg;
if (vq->num_free < descs_used) {
debug("Can't add buf len %i - avail = %i\n",
--
2.39.5