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rpmsg: virtio_rpmsg_bus: Rename rbufs and sbufs

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rename variables with clear names.
%s/rbufs/rx_bufs/
%s/sbufs/tx_bufs/
%s/last_sbuf/last_tx_buf/

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20260828145853.2843486-2-tanmay.shah@amd.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
This commit is contained in:
Tanmay Shah 2026-08-28 07:58:48 -07:00 committed by Mathieu Poirier
parent 6c4fbf1ce4
commit 92619efc92
1 changed files with 14 additions and 14 deletions
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28
drivers/rpmsg/virtio_rpmsg_bus.c
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@ -35,13 +35,13 @@
* @vdev: the virtio device
* @rvq: rx virtqueue
* @svq: tx virtqueue
* @rbufs: kernel address of rx buffers
* @sbufs: kernel address of tx buffers
* @num_bufs: total number of buffers for rx and tx
* @rx_bufs: kernel address of rx buffers
* @tx_bufs: kernel address of tx buffers
* @num_bufs: total number of buffers for rx and tx
* @buf_size: size of one rx or tx buffer
* @last_sbuf: index of last tx buffer used
* @last_tx_buf: index of last tx buffer used
* @bufs_dma: dma base addr of the buffers
* @tx_lock: protects svq and sbufs, to allow concurrent senders.
* @tx_lock: protects svq and tx_bufs, to allow concurrent senders.
* sending a message might require waking up a dozing remote
* processor, which involves sleeping, hence the mutex.
* @endpoints: idr of local endpoints, allows fast retrieval
@ -55,10 +55,10 @@
struct virtproc_info {
struct virtio_device *vdev;
struct virtqueue *rvq, *svq;
void *rbufs, *sbufs;
void *rx_bufs, *tx_bufs;
unsigned int num_bufs;
unsigned int buf_size;
int last_sbuf;
int last_tx_buf;
dma_addr_t bufs_dma;
struct mutex tx_lock;
struct idr endpoints;
@ -443,8 +443,8 @@ static void *get_a_tx_buf(struct virtproc_info *vrp)
* either pick the next unused tx buffer
* (half of our buffers are used for sending messages)
*/
if (vrp->last_sbuf < vrp->num_bufs / 2)
ret = vrp->sbufs + vrp->buf_size * vrp->last_sbuf++;
if (vrp->last_tx_buf < vrp->num_bufs / 2)
ret = vrp->tx_bufs + vrp->buf_size * vrp->last_tx_buf++;
/* or recycle a used one */
else
ret = virtqueue_get_buf(vrp->svq, &len);
@ -634,7 +634,7 @@ static __poll_t virtio_rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
* allocated buffers are used for transmit, hence num_bufs / 2), or,
* - we ask the virtqueue if there's a buffer available
*/
if (vrp->last_sbuf < vrp->num_bufs / 2 ||
if (vrp->last_tx_buf < vrp->num_bufs / 2 ||
!virtqueue_enable_cb(vrp->svq))
mask |= EPOLLOUT;
@ -872,15 +872,15 @@ static int rpmsg_probe(struct virtio_device *vdev)
bufs_va, &vrp->bufs_dma);
/* half of the buffers is dedicated for RX */
vrp->rbufs = bufs_va;
vrp->rx_bufs = bufs_va;
/* and half is dedicated for TX */
vrp->sbufs = bufs_va + total_buf_space / 2;
vrp->tx_bufs = bufs_va + total_buf_space / 2;
/* set up the receive buffers */
for (i = 0; i < vrp->num_bufs / 2; i++) {
struct scatterlist sg;
void *cpu_addr = vrp->rbufs + i * vrp->buf_size;
void *cpu_addr = vrp->rx_bufs + i * vrp->buf_size;
rpmsg_sg_init(&sg, cpu_addr, vrp->buf_size);
@ -979,7 +979,7 @@ static void rpmsg_remove(struct virtio_device *vdev)
vdev->config->del_vqs(vrp->vdev);
dma_free_coherent(vdev->dev.parent, total_buf_space,
vrp->rbufs, vrp->bufs_dma);
vrp->rx_bufs, vrp->bufs_dma);
kfree(vrp);
}