This is a note to let you know that I've just added the patch titled
bus: mhi: host: Rename "struct mhi_tre" to "struct mhi_ring_element"
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bus-mhi-host-rename-struct-mhi_tre-to-struct-mhi_rin.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 09068651c6304d67704c3e713d38c722e2c0f1e4
Author: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Date: Tue Mar 1 21:33:06 2022 +0530
bus: mhi: host: Rename "struct mhi_tre" to "struct mhi_ring_element"
[ Upstream commit 84f5f31f110e5e8cd5581e8efdbf8c369e962eb9 ]
Structure "struct mhi_tre" is representing a generic MHI ring element and
not specifically a Transfer Ring Element (TRE). Fix the naming.
Reviewed-by: Alex Elder <elder@xxxxxxxxxx>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220301160308.107452-9-manivannan.sadhasivam@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: eff9704f5332 ("bus: mhi: host: Add alignment check for event ring read pointer")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c
index 829d4fca7ddc..7ccc5cd27fd0 100644
--- a/drivers/bus/mhi/host/init.c
+++ b/drivers/bus/mhi/host/init.c
@@ -338,7 +338,7 @@ int mhi_init_dev_ctxt(struct mhi_controller *mhi_cntrl)
er_ctxt->msivec = cpu_to_le32(mhi_event->irq);
mhi_event->db_cfg.db_mode = true;
- ring->el_size = sizeof(struct mhi_tre);
+ ring->el_size = sizeof(struct mhi_ring_element);
ring->len = ring->el_size * ring->elements;
ret = mhi_alloc_aligned_ring(mhi_cntrl, ring, ring->len);
if (ret)
@@ -370,7 +370,7 @@ int mhi_init_dev_ctxt(struct mhi_controller *mhi_cntrl)
for (i = 0; i < NR_OF_CMD_RINGS; i++, mhi_cmd++, cmd_ctxt++) {
struct mhi_ring *ring = &mhi_cmd->ring;
- ring->el_size = sizeof(struct mhi_tre);
+ ring->el_size = sizeof(struct mhi_ring_element);
ring->elements = CMD_EL_PER_RING;
ring->len = ring->el_size * ring->elements;
ret = mhi_alloc_aligned_ring(mhi_cntrl, ring, ring->len);
@@ -613,7 +613,7 @@ int mhi_init_chan_ctxt(struct mhi_controller *mhi_cntrl,
buf_ring = &mhi_chan->buf_ring;
tre_ring = &mhi_chan->tre_ring;
- tre_ring->el_size = sizeof(struct mhi_tre);
+ tre_ring->el_size = sizeof(struct mhi_ring_element);
tre_ring->len = tre_ring->el_size * tre_ring->elements;
chan_ctxt = &mhi_cntrl->mhi_ctxt->chan_ctxt[mhi_chan->chan];
ret = mhi_alloc_aligned_ring(mhi_cntrl, tre_ring, tre_ring->len);
diff --git a/drivers/bus/mhi/host/internal.h b/drivers/bus/mhi/host/internal.h
index 71f181402be9..df65bb17fdba 100644
--- a/drivers/bus/mhi/host/internal.h
+++ b/drivers/bus/mhi/host/internal.h
@@ -257,7 +257,7 @@ struct mhi_ctxt {
dma_addr_t cmd_ctxt_addr;
};
-struct mhi_tre {
+struct mhi_ring_element {
__le64 ptr;
__le32 dword[2];
};
diff --git a/drivers/bus/mhi/host/main.c b/drivers/bus/mhi/host/main.c
index 0d35acb2f7c0..23bd1db94558 100644
--- a/drivers/bus/mhi/host/main.c
+++ b/drivers/bus/mhi/host/main.c
@@ -556,7 +556,7 @@ static void mhi_recycle_ev_ring_element(struct mhi_controller *mhi_cntrl,
}
static int parse_xfer_event(struct mhi_controller *mhi_cntrl,
- struct mhi_tre *event,
+ struct mhi_ring_element *event,
struct mhi_chan *mhi_chan)
{
struct mhi_ring *buf_ring, *tre_ring;
@@ -592,7 +592,7 @@ static int parse_xfer_event(struct mhi_controller *mhi_cntrl,
case MHI_EV_CC_EOT:
{
dma_addr_t ptr = MHI_TRE_GET_EV_PTR(event);
- struct mhi_tre *local_rp, *ev_tre;
+ struct mhi_ring_element *local_rp, *ev_tre;
void *dev_rp;
struct mhi_buf_info *buf_info;
u16 xfer_len;
@@ -695,7 +695,7 @@ static int parse_xfer_event(struct mhi_controller *mhi_cntrl,
}
static int parse_rsc_event(struct mhi_controller *mhi_cntrl,
- struct mhi_tre *event,
+ struct mhi_ring_element *event,
struct mhi_chan *mhi_chan)
{
struct mhi_ring *buf_ring, *tre_ring;
@@ -759,12 +759,12 @@ static int parse_rsc_event(struct mhi_controller *mhi_cntrl,
}
static void mhi_process_cmd_completion(struct mhi_controller *mhi_cntrl,
- struct mhi_tre *tre)
+ struct mhi_ring_element *tre)
{
dma_addr_t ptr = MHI_TRE_GET_EV_PTR(tre);
struct mhi_cmd *cmd_ring = &mhi_cntrl->mhi_cmd[PRIMARY_CMD_RING];
struct mhi_ring *mhi_ring = &cmd_ring->ring;
- struct mhi_tre *cmd_pkt;
+ struct mhi_ring_element *cmd_pkt;
struct mhi_chan *mhi_chan;
u32 chan;
@@ -797,7 +797,7 @@ int mhi_process_ctrl_ev_ring(struct mhi_controller *mhi_cntrl,
struct mhi_event *mhi_event,
u32 event_quota)
{
- struct mhi_tre *dev_rp, *local_rp;
+ struct mhi_ring_element *dev_rp, *local_rp;
struct mhi_ring *ev_ring = &mhi_event->ring;
struct mhi_event_ctxt *er_ctxt =
&mhi_cntrl->mhi_ctxt->er_ctxt[mhi_event->er_index];
@@ -967,7 +967,7 @@ int mhi_process_data_event_ring(struct mhi_controller *mhi_cntrl,
struct mhi_event *mhi_event,
u32 event_quota)
{
- struct mhi_tre *dev_rp, *local_rp;
+ struct mhi_ring_element *dev_rp, *local_rp;
struct mhi_ring *ev_ring = &mhi_event->ring;
struct mhi_event_ctxt *er_ctxt =
&mhi_cntrl->mhi_ctxt->er_ctxt[mhi_event->er_index];
@@ -1188,7 +1188,7 @@ int mhi_gen_tre(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
struct mhi_buf_info *info, enum mhi_flags flags)
{
struct mhi_ring *buf_ring, *tre_ring;
- struct mhi_tre *mhi_tre;
+ struct mhi_ring_element *mhi_tre;
struct mhi_buf_info *buf_info;
int eot, eob, chain, bei;
int ret;
@@ -1266,7 +1266,7 @@ int mhi_send_cmd(struct mhi_controller *mhi_cntrl,
struct mhi_chan *mhi_chan,
enum mhi_cmd_type cmd)
{
- struct mhi_tre *cmd_tre = NULL;
+ struct mhi_ring_element *cmd_tre = NULL;
struct mhi_cmd *mhi_cmd = &mhi_cntrl->mhi_cmd[PRIMARY_CMD_RING];
struct mhi_ring *ring = &mhi_cmd->ring;
struct device *dev = &mhi_cntrl->mhi_dev->dev;
@@ -1524,7 +1524,7 @@ static void mhi_mark_stale_events(struct mhi_controller *mhi_cntrl,
int chan)
{
- struct mhi_tre *dev_rp, *local_rp;
+ struct mhi_ring_element *dev_rp, *local_rp;
struct mhi_ring *ev_ring;
struct device *dev = &mhi_cntrl->mhi_dev->dev;
unsigned long flags;
