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Subject[PATCH 5.9 080/152] usb: cdns3: gadget: fix some endian issues
Date
From: Peter Chen <peter.chen@nxp.com>

[ Upstream commit 8dafb3c04df3b3b5a3ee2c7f5d8285a8b2f0aa78 ]

It is found by sparse.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/cdns3/gadget.c | 60 +++++++++++++++++++-------------------
1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index e0e1cb907ffd8..dc5e6be3fd45a 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -261,8 +261,8 @@ int cdns3_allocate_trb_pool(struct cdns3_endpoint *priv_ep)
*/
link_trb->control = 0;
} else {
- link_trb->buffer = TRB_BUFFER(priv_ep->trb_pool_dma);
- link_trb->control = TRB_CYCLE | TRB_TYPE(TRB_LINK) | TRB_TOGGLE;
+ link_trb->buffer = cpu_to_le32(TRB_BUFFER(priv_ep->trb_pool_dma));
+ link_trb->control = cpu_to_le32(TRB_CYCLE | TRB_TYPE(TRB_LINK) | TRB_TOGGLE);
}
return 0;
}
@@ -853,10 +853,10 @@ static void cdns3_wa1_restore_cycle_bit(struct cdns3_endpoint *priv_ep)
priv_ep->wa1_trb_index = 0xFFFF;
if (priv_ep->wa1_cycle_bit) {
priv_ep->wa1_trb->control =
- priv_ep->wa1_trb->control | 0x1;
+ priv_ep->wa1_trb->control | cpu_to_le32(0x1);
} else {
priv_ep->wa1_trb->control =
- priv_ep->wa1_trb->control & ~0x1;
+ priv_ep->wa1_trb->control & cpu_to_le32(~0x1);
}
}
}
@@ -1014,17 +1014,16 @@ static int cdns3_ep_run_stream_transfer(struct cdns3_endpoint *priv_ep,
TRB_STREAM_ID(priv_req->request.stream_id) | TRB_ISP;

if (!request->num_sgs) {
- trb->buffer = TRB_BUFFER(trb_dma);
+ trb->buffer = cpu_to_le32(TRB_BUFFER(trb_dma));
length = request->length;
} else {
- trb->buffer = TRB_BUFFER(request->sg[sg_idx].dma_address);
+ trb->buffer = cpu_to_le32(TRB_BUFFER(request->sg[sg_idx].dma_address));
length = request->sg[sg_idx].length;
}

tdl = DIV_ROUND_UP(length, priv_ep->endpoint.maxpacket);

- trb->length = TRB_BURST_LEN(16 /*priv_ep->trb_burst_size*/) |
- TRB_LEN(length);
+ trb->length = cpu_to_le32(TRB_BURST_LEN(16) | TRB_LEN(length));

/*
* For DEV_VER_V2 controller version we have enabled
@@ -1033,11 +1032,11 @@ static int cdns3_ep_run_stream_transfer(struct cdns3_endpoint *priv_ep,
*/
if (priv_dev->dev_ver >= DEV_VER_V2) {
if (priv_dev->gadget.speed == USB_SPEED_SUPER)
- trb->length |= TRB_TDL_SS_SIZE(tdl);
+ trb->length |= cpu_to_le32(TRB_TDL_SS_SIZE(tdl));
}
priv_req->flags |= REQUEST_PENDING;

- trb->control = control;
+ trb->control = cpu_to_le32(control);

trace_cdns3_prepare_trb(priv_ep, priv_req->trb);

@@ -1162,8 +1161,8 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep,
TRBS_PER_SEGMENT > 2)
ch_bit = TRB_CHAIN;

- link_trb->control = ((priv_ep->pcs) ? TRB_CYCLE : 0) |
- TRB_TYPE(TRB_LINK) | TRB_TOGGLE | ch_bit;
+ link_trb->control = cpu_to_le32(((priv_ep->pcs) ? TRB_CYCLE : 0) |
+ TRB_TYPE(TRB_LINK) | TRB_TOGGLE | ch_bit);
}

if (priv_dev->dev_ver <= DEV_VER_V2)
@@ -1178,8 +1177,8 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep,

/* fill TRB */
control |= TRB_TYPE(TRB_NORMAL);
- trb->buffer = TRB_BUFFER(request->num_sgs == 0
- ? trb_dma : request->sg[sg_iter].dma_address);
+ trb->buffer = cpu_to_le32(TRB_BUFFER(request->num_sgs == 0
+ ? trb_dma : request->sg[sg_iter].dma_address));

if (likely(!request->num_sgs))
length = request->length;
@@ -1193,10 +1192,10 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep,
total_tdl += DIV_ROUND_UP(length,
priv_ep->endpoint.maxpacket);

- trb->length = TRB_BURST_LEN(priv_ep->trb_burst_size) |
- TRB_LEN(length);
+ trb->length = cpu_to_le32(TRB_BURST_LEN(priv_ep->trb_burst_size) |
+ TRB_LEN(length));
if (priv_dev->gadget.speed == USB_SPEED_SUPER)
- trb->length |= TRB_TDL_SS_SIZE(td_size);
+ trb->length |= cpu_to_le32(TRB_TDL_SS_SIZE(td_size));
else
control |= TRB_TDL_HS_SIZE(td_size);

@@ -1218,9 +1217,9 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep,
}

if (sg_iter)
- trb->control = control;
+ trb->control = cpu_to_le32(control);
else
- priv_req->trb->control = control;
+ priv_req->trb->control = cpu_to_le32(control);

control = 0;
++sg_iter;
@@ -1234,7 +1233,7 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep,
priv_req->flags |= REQUEST_PENDING;

if (sg_iter == 1)
- trb->control |= TRB_IOC | TRB_ISP;
+ trb->control |= cpu_to_le32(TRB_IOC | TRB_ISP);

if (priv_dev->dev_ver < DEV_VER_V2 &&
(priv_ep->flags & EP_TDLCHK_EN)) {
@@ -1260,7 +1259,7 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep,

/* give the TD to the consumer*/
if (togle_pcs)
- trb->control = trb->control ^ 1;
+ trb->control = trb->control ^ cpu_to_le32(1);

if (priv_dev->dev_ver <= DEV_VER_V2)
cdns3_wa1_tray_restore_cycle_bit(priv_dev, priv_ep);
@@ -1399,7 +1398,7 @@ static bool cdns3_request_handled(struct cdns3_endpoint *priv_ep,

trb = &priv_ep->trb_pool[priv_req->start_trb];

- if ((trb->control & TRB_CYCLE) != priv_ep->ccs)
+ if ((le32_to_cpu(trb->control) & TRB_CYCLE) != priv_ep->ccs)
goto finish;

if (doorbell == 1 && current_index == priv_ep->dequeue)
@@ -1448,7 +1447,7 @@ static void cdns3_transfer_completed(struct cdns3_device *priv_dev,
trb = priv_ep->trb_pool + priv_ep->dequeue;

/* Request was dequeued and TRB was changed to TRB_LINK. */
- if (TRB_FIELD_TO_TYPE(trb->control) == TRB_LINK) {
+ if (TRB_FIELD_TO_TYPE(le32_to_cpu(trb->control)) == TRB_LINK) {
trace_cdns3_complete_trb(priv_ep, trb);
cdns3_move_deq_to_next_trb(priv_req);
}
@@ -1580,7 +1579,7 @@ static int cdns3_check_ep_interrupt_proceed(struct cdns3_endpoint *priv_ep)
* that host ignore the ERDY packet and driver has to send it
* again.
*/
- if (tdl && (dbusy | !EP_STS_BUFFEMPTY(ep_sts_reg) |
+ if (tdl && (dbusy || !EP_STS_BUFFEMPTY(ep_sts_reg) ||
EP_STS_HOSTPP(ep_sts_reg))) {
writel(EP_CMD_ERDY |
EP_CMD_ERDY_SID(priv_ep->last_stream_id),
@@ -2564,10 +2563,10 @@ found:

/* Update ring only if removed request is on pending_req_list list */
if (req_on_hw_ring && link_trb) {
- link_trb->buffer = TRB_BUFFER(priv_ep->trb_pool_dma +
- ((priv_req->end_trb + 1) * TRB_SIZE));
- link_trb->control = (link_trb->control & TRB_CYCLE) |
- TRB_TYPE(TRB_LINK) | TRB_CHAIN;
+ link_trb->buffer = cpu_to_le32(TRB_BUFFER(priv_ep->trb_pool_dma +
+ ((priv_req->end_trb + 1) * TRB_SIZE)));
+ link_trb->control = cpu_to_le32((le32_to_cpu(link_trb->control) & TRB_CYCLE) |
+ TRB_TYPE(TRB_LINK) | TRB_CHAIN);

if (priv_ep->wa1_trb == priv_req->trb)
cdns3_wa1_restore_cycle_bit(priv_ep);
@@ -2622,7 +2621,7 @@ int __cdns3_gadget_ep_clear_halt(struct cdns3_endpoint *priv_ep)
priv_req = to_cdns3_request(request);
trb = priv_req->trb;
if (trb)
- trb->control = trb->control ^ TRB_CYCLE;
+ trb->control = trb->control ^ cpu_to_le32(TRB_CYCLE);
}

writel(EP_CMD_CSTALL | EP_CMD_EPRST, &priv_dev->regs->ep_cmd);
@@ -2637,7 +2636,8 @@ int __cdns3_gadget_ep_clear_halt(struct cdns3_endpoint *priv_ep)

if (request) {
if (trb)
- trb->control = trb->control ^ TRB_CYCLE;
+ trb->control = trb->control ^ cpu_to_le32(TRB_CYCLE);
+
cdns3_rearm_transfer(priv_ep, 1);
}

--
2.27.0


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