RE: [PATCH 1/2] usb: cdnsp: Fixes for sparse warnings

From: Pawel Laszczak
Date: Tue Dec 15 2020 - 01:21:29 EST

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In reply to: Pawel Laszczak: "RE: [PATCH 1/2] usb: cdnsp: Fixes for sparse warnings"
Next in thread: Peter Chen: "Re: [PATCH 1/2] usb: cdnsp: Fixes for sparse warnings"
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>>On 20-12-15 05:27:38, Pawel Laszczak wrote:
>>> >
>>> >
>>> >On 20-12-14 13:03:44, Pawel Laszczak wrote:
>>> >> Patch fixes all sparse warnings in cdsnp driver.
>>> >>
>>> >> It fixes the following warnings:
>>> >> cdnsp-ring.c:1441: warning: incorrect type in assignment
>>> >> cdnsp-ring.c:1444: warning: restricted __le32 degrades to integer
>>> >> cdnsp-ring.c:2200: warning: dubious: x | !y
>>> >> cdnsp-gadget.c:501: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:504: warning: restricted __le32 degrades to integer
>>> >> cdnsp-gadget.c:507: warning: restricted __le32 degrades to integer
>>> >> cdnsp-gadget.c:508: warning: restricted __le32 degrades to integer
>>> >> cdnsp-gadget.c:509: warning: invalid assignment: |=
>>> >> cdnsp-gadget.c:510: warning: cast from restricted __le32
>>> >> cdnsp-gadget.c:558: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:561: warning: restricted __le32 degrades to integer
>>> >> cdnsp-gadget.c:570: warning: restricted __le32 degrades to integer
>>> >> cdnsp-gadget.c:1571: warning: incorrect type in argument 1
>>> >> cdnsp-gadget.c:1602: warning: restricted __le32 degrades to integer
>>> >> cdnsp-gadget.c:1760: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:1762: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:1763: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:1764: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:1765: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:1766: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:1767: warning: incorrect type in assignment
>>> >> cdnsp-gadget.c:458: warning: cast truncates bits from constant value
>>> >> (ffffffff07ffffff becomes 7ffffff)
>>> >> cdnsp-gadget.c:666: warning: cast truncates bits from constant value
>>> >> (ffffffff07ffffff becomes 7ffffff)
>>> >> cdnsp-mem.c:762: warning: incorrect type in assignment
>>> >> cdnsp-mem.c:763: warning: incorrect type in assignment
>>> >> cdnsp-mem.c:928: warning: cast from restricted __le16
>>> >> cdnsp-mem.c:1187: warning: incorrect type in assignment
>>> >> cdnsp-mem.c:1191: warning: incorrect type in assignment
>>> >> cdnsp-ep0.c:142: warning: incorrect type in assignment
>>> >> cdnsp-ep0.c:144: warning: restricted __le32 degrades to integer
>>> >> cdnsp-ep0.c:147: warning: restricted __le32 degrades to integer
>>> >> cdnsp-ep0.c:148: warning: restricted __le32 degrades to integer
>>> >> cdnsp-ep0.c:179: warning: incorrect type in argument 1
>>> >> cdnsp-ep0.c:311: warning: incorrect type in argument 1
>>> >> cdnsp-ep0.c:469: warning: incorrect type in assignment
>>> >> cdnsp-trace.h:611:1: warning: cast from restricted __le32
>>> >>
>>> >> Signed-off-by: Pawel Laszczak <pawell@xxxxxxxxxxx>
>>> >> Reported-by: kernel test robot <lkp@xxxxxxxxx>
>>> >
>>> >Hi Pawel,
>>> >
>>> >The Reported-by tag should be above your Sob tag, I will change it.
>>> >Except the patch reported build error by kernel test robot, I will apply
>>> >your other four patches after finishing the compile test.
>>> >
>>> >Peter
>>>
>>> Hi Peter,
>>>
>>> I'm going to fix the "usb: cdns3: Adds missing __iomem markers" today.
>>> I haven't seen any issue on ARCH=parisc. Maybe it's some specific riscv arch issue.
>>>
>>> I believe that:
>>> [auto build test WARNING on next-20201211]
>>> [cannot apply to peter.chen-usb/ci-for-usb-next v5.10 v5.10-rc7 v5.10-rc6 v5.10]
>>>
>>> is not the problem. I based on peter.chen-usb/for-usb-next.
>>>
>>> Also I can't open the url from kernel test robot report.
>>> Maybe there is some temporary issue with server.
>>>
>>
>>Thanks for checking it, I have already pushed your other four patches.
>>Besides, there is still a build error issue for new cdns3 driver.
>>
>>https://urldefense.com/v3/__https://www.spinics.net/lists/linux-
>>usb/msg206073.html__;!!EHscmS1ygiU1lA!X6rYk64ILtzjyHW903LAhBRjMKi9C2eyJWEXVlEZm0ly2BiNzY2wK46Ulq7q5w$
>>
>
>Did you applied: [PATCH] usb: cdnsp: Fix for undefined reference to `usb_hcd_is_primary_hcd' ?

It's my local log:

ab474baa0302 (HEAD -> for-usb-next) usb: cdns3: Adds missing __iomem markers
4af8270829f2 usb: cdnsp: Fixes for sparse warnings
4f5f85f26e77 usb: cdns3: Fixes for sparse warnings
cd41bb30fc26 dan.carpenter@oracle.comusb: cdnsp: fix error handling in cdnsp_mem_init()
1918b1486f94 usb: cdns3: Removes xhci_cdns3_suspend_quirk from host-export.h
d47d84a1cd8a usb: cdnsp: Fix for undefined reference to `usb_hcd_is_primary_hcd'
df1b6960d363 (peter.chen-usb/for-usb-next) usb: cdnsp: Removes some not useful function arguments
94e0623337a6 usb: cdns3: fix warning when USB_CDNS_HOST is not set

>Pawel
>
>>Peter
>>> Thanks,
>>> Pawel
>>>
>>> >> ---
>>> >> drivers/usb/cdns3/cdnsp-debug.h | 2 +-
>>> >> drivers/usb/cdns3/cdnsp-ep0.c | 13 ++++++-------
>>> >> drivers/usb/cdns3/cdnsp-gadget.c | 24 +++++++++---------------
>>> >> drivers/usb/cdns3/cdnsp-gadget.h | 13 +++++++------
>>> >> drivers/usb/cdns3/cdnsp-mem.c | 11 ++++++-----
>>> >> drivers/usb/cdns3/cdnsp-ring.c | 4 ++--
>>> >> drivers/usb/cdns3/cdnsp-trace.h | 2 +-
>>> >> 7 files changed, 32 insertions(+), 37 deletions(-)
>>> >>
>>> >> diff --git a/drivers/usb/cdns3/cdnsp-debug.h b/drivers/usb/cdns3/cdnsp-debug.h
>>> >> index d6345d4d2911..a8776df2d4e0 100644
>>> >> --- a/drivers/usb/cdns3/cdnsp-debug.h
>>> >> +++ b/drivers/usb/cdns3/cdnsp-debug.h
>>> >> @@ -414,7 +414,7 @@ static inline const char *cdnsp_decode_slot_context(u32 info, u32 info2,
>>> >> s = "UNKNOWN speed";
>>> >> }
>>> >>
>>> >> - ret = sprintf(str, "%s Ctx Entries %ld",
>>> >> + ret = sprintf(str, "%s Ctx Entries %d",
>>> >> s, (info & LAST_CTX_MASK) >> 27);
>>> >>
>>> >> ret += sprintf(str + ret, " [Intr %ld] Addr %ld State %s",
>>> >> diff --git a/drivers/usb/cdns3/cdnsp-ep0.c b/drivers/usb/cdns3/cdnsp-ep0.c
>>> >> index d55b59ed7381..e2b1bcb3f80e 100644
>>> >> --- a/drivers/usb/cdns3/cdnsp-ep0.c
>>> >> +++ b/drivers/usb/cdns3/cdnsp-ep0.c
>>> >> @@ -137,10 +137,8 @@ int cdnsp_status_stage(struct cdnsp_device *pdev)
>>> >> return cdnsp_ep_enqueue(pdev->ep0_preq.pep, &pdev->ep0_preq);
>>> >> }
>>> >>
>>> >> -static int cdnsp_w_index_to_ep_index(__le32 wIndex)
>>> >> +static int cdnsp_w_index_to_ep_index(u16 wIndex)
>>> >> {
>>> >> - wIndex = le32_to_cpu(wIndex);
>>> >> -
>>> >> if (!(wIndex & USB_ENDPOINT_NUMBER_MASK))
>>> >> return 0;
>>> >>
>>> >> @@ -176,7 +174,8 @@ static int cdnsp_ep0_handle_status(struct cdnsp_device *pdev,
>>> >> */
>>> >> return cdnsp_ep0_delegate_req(pdev, ctrl);
>>> >> case USB_RECIP_ENDPOINT:
>>> >> - pep = &pdev->eps[cdnsp_w_index_to_ep_index(ctrl->wIndex)];
>>> >> + ep_sts = cdnsp_w_index_to_ep_index(le16_to_cpu(ctrl->wIndex));
>>> >> + pep = &pdev->eps[ep_sts];
>>> >> ep_sts = GET_EP_CTX_STATE(pep->out_ctx);
>>> >>
>>> >> /* check if endpoint is stalled */
>>> >> @@ -305,10 +304,10 @@ static int cdnsp_ep0_handle_feature_endpoint(struct cdnsp_device *pdev,
>>> >> int set)
>>> >> {
>>> >> struct cdnsp_ep *pep;
>>> >> - u32 wValue;
>>> >> + u16 wValue;
>>> >>
>>> >> wValue = le16_to_cpu(ctrl->wValue);
>>> >> - pep = &pdev->eps[cdnsp_w_index_to_ep_index(ctrl->wIndex)];
>>> >> + pep = &pdev->eps[cdnsp_w_index_to_ep_index(le16_to_cpu(ctrl->wIndex))];
>>> >>
>>> >> switch (wValue) {
>>> >> case USB_ENDPOINT_HALT:
>>> >> @@ -435,7 +434,7 @@ void cdnsp_setup_analyze(struct cdnsp_device *pdev)
>>> >> {
>>> >> struct usb_ctrlrequest *ctrl = &pdev->setup;
>>> >> int ret = 0;
>>> >> - __le16 len;
>>> >> + u16 len;
>>> >>
>>> >> trace_cdnsp_ctrl_req(ctrl);
>>> >>
>>> >> diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c
>>> >> index 1668f72fdf30..f28f1508f049 100644
>>> >> --- a/drivers/usb/cdns3/cdnsp-gadget.c
>>> >> +++ b/drivers/usb/cdns3/cdnsp-gadget.c
>>> >> @@ -491,7 +491,7 @@ static void cdnsp_invalidate_ep_events(struct cdnsp_device *pdev,
>>> >> struct cdnsp_segment *segment;
>>> >> union cdnsp_trb *event;
>>> >> u32 cycle_state;
>>> >> - __le32 data;
>>> >> + u32 data;
>>> >>
>>> >> event = pdev->event_ring->dequeue;
>>> >> segment = pdev->event_ring->deq_seg;
>>> >> @@ -527,9 +527,9 @@ int cdnsp_wait_for_cmd_compl(struct cdnsp_device *pdev)
>>> >> dma_addr_t cmd_deq_dma;
>>> >> union cdnsp_trb *event;
>>> >> u32 cycle_state;
>>> >> - __le32 flags;
>>> >> int ret, val;
>>> >> u64 cmd_dma;
>>> >> + u32 flags;
>>> >>
>>> >> cmd_trb = pdev->cmd.command_trb;
>>> >> pdev->cmd.status = 0;
>>> >> @@ -1568,7 +1568,7 @@ static void cdnsp_get_ep_buffering(struct cdnsp_device *pdev,
>>> >> return;
>>> >> }
>>> >>
>>> >> - endpoints = HCS_ENDPOINTS(readl(&pdev->hcs_params1)) / 2;
>>> >> + endpoints = HCS_ENDPOINTS(pdev->hcs_params1) / 2;
>>> >>
>>> >> /* Set to XBUF_TX_TAG_MASK_0 register. */
>>> >> reg += XBUF_TX_CMD_OFFSET + (endpoints * 2 + 2) * sizeof(u32);
>>> >> @@ -1754,22 +1754,16 @@ void cdnsp_irq_reset(struct cdnsp_device *pdev)
>>> >> static void cdnsp_get_rev_cap(struct cdnsp_device *pdev)
>>> >> {
>>> >> void __iomem *reg = &pdev->cap_regs->hc_capbase;
>>> >> - struct cdnsp_rev_cap *rev_cap;
>>> >>
>>> >> reg += cdnsp_find_next_ext_cap(reg, 0, RTL_REV_CAP);
>>> >> - rev_cap = reg;
>>> >> -
>>> >> - pdev->rev_cap.ctrl_revision = readl(&rev_cap->ctrl_revision);
>>> >> - pdev->rev_cap.rtl_revision = readl(&rev_cap->rtl_revision);
>>> >> - pdev->rev_cap.ep_supported = readl(&rev_cap->ep_supported);
>>> >> - pdev->rev_cap.ext_cap = readl(&rev_cap->ext_cap);
>>> >> - pdev->rev_cap.rx_buff_size = readl(&rev_cap->rx_buff_size);
>>> >> - pdev->rev_cap.tx_buff_size = readl(&rev_cap->tx_buff_size);
>>> >> + pdev->rev_cap = reg;
>>> >>
>>> >> dev_info(pdev->dev, "Rev: %08x/%08x, eps: %08x, buff: %08x/%08x\n",
>>> >> - pdev->rev_cap.ctrl_revision, pdev->rev_cap.rtl_revision,
>>> >> - pdev->rev_cap.ep_supported, pdev->rev_cap.rx_buff_size,
>>> >> - pdev->rev_cap.tx_buff_size);
>>> >> + readl(&pdev->rev_cap->ctrl_revision),
>>> >> + readl(&pdev->rev_cap->rtl_revision),
>>> >> + readl(&pdev->rev_cap->ep_supported),
>>> >> + readl(&pdev->rev_cap->rx_buff_size),
>>> >> + readl(&pdev->rev_cap->tx_buff_size));
>>> >> }
>>> >>
>>> >> static int cdnsp_gen_setup(struct cdnsp_device *pdev)
>>> >> diff --git a/drivers/usb/cdns3/cdnsp-gadget.h b/drivers/usb/cdns3/cdnsp-gadget.h
>>> >> index 8eb1b85a08b4..6bbb26548c04 100644
>>> >> --- a/drivers/usb/cdns3/cdnsp-gadget.h
>>> >> +++ b/drivers/usb/cdns3/cdnsp-gadget.h
>>> >> @@ -493,11 +493,12 @@ struct cdnsp_3xport_cap {
>>> >> #define CDNSP_VER_1 0x00000000
>>> >> #define CDNSP_VER_2 0x10000000
>>> >>
>>> >> -#define CDNSP_IF_EP_EXIST(pdev, ep_num, dir) ((pdev)->rev_cap.ep_supported & \
>>> >> - (BIT(ep_num) << ((dir) ? 0 : 16)))
>>> >> +#define CDNSP_IF_EP_EXIST(pdev, ep_num, dir) \
>>> >> + (readl(&(pdev)->rev_cap->ep_supported) & \
>>> >> + (BIT(ep_num) << ((dir) ? 0 : 16)))
>>> >>
>>> >> /**
>>> >> - * struct cdnsp_rev_cap - controller capabilities .
>>> >> + * struct cdnsp_rev_cap - controller capabilities.
>>> >> * @ext_cap: Header for RTL Revision Extended Capability.
>>> >> * @rtl_revision: RTL revision.
>>> >> * @rx_buff_size: Rx buffer sizes.
>>> >> @@ -594,7 +595,7 @@ struct cdnsp_slot_ctx {
>>> >> #define DEV_SPEED GENMASK(23, 20)
>>> >> #define GET_DEV_SPEED(n) (((n) & DEV_SPEED) >> 20)
>>> >> /* Index of the last valid endpoint context in this device context - 27:31. */
>>> >> -#define LAST_CTX_MASK GENMASK(31, 27)
>>> >> +#define LAST_CTX_MASK ((unsigned int)GENMASK(31, 27))
>>> >> #define LAST_CTX(p) ((p) << 27)
>>> >> #define LAST_CTX_TO_EP_NUM(p) (((p) >> 27) - 1)
>>> >> #define SLOT_FLAG BIT(0)
>>> >> @@ -1351,9 +1352,9 @@ struct cdnsp_port {
>>> >> * @ir_set: Current interrupter register set.
>>> >> * @port20_regs: Port 2.0 Peripheral Configuration Registers.
>>> >> * @port3x_regs: USB3.x Port Peripheral Configuration Registers.
>>> >> + * @rev_cap: Controller Capabilities Registers.
>>> >> * @hcs_params1: Cached register copies of read-only HCSPARAMS1
>>> >> * @hcc_params: Cached register copies of read-only HCCPARAMS1
>>> >> - * @rev_cap: Controller capability.
>>> >> * @setup: Temporary buffer for setup packet.
>>> >> * @ep0_preq: Internal allocated request used during enumeration.
>>> >> * @ep0_stage: ep0 stage during enumeration process.
>>> >> @@ -1402,12 +1403,12 @@ struct cdnsp_device {
>>> >> struct cdnsp_intr_reg __iomem *ir_set;
>>> >> struct cdnsp_20port_cap __iomem *port20_regs;
>>> >> struct cdnsp_3xport_cap __iomem *port3x_regs;
>>> >> + struct cdnsp_rev_cap __iomem *rev_cap;
>>> >>
>>> >> /* Cached register copies of read-only CDNSP data */
>>> >> __u32 hcs_params1;
>>> >> __u32 hcs_params3;
>>> >> __u32 hcc_params;
>>> >> - struct cdnsp_rev_cap rev_cap;
>>> >> /* Lock used in interrupt thread context. */
>>> >> spinlock_t lock;
>>> >> struct usb_ctrlrequest setup;
>>> >> diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c
>>> >> index 4c7d77fb097e..7a84e928710e 100644
>>> >> --- a/drivers/usb/cdns3/cdnsp-mem.c
>>> >> +++ b/drivers/usb/cdns3/cdnsp-mem.c
>>> >> @@ -759,8 +759,9 @@ int cdnsp_setup_addressable_priv_dev(struct cdnsp_device *pdev)
>>> >>
>>> >> port = DEV_PORT(pdev->active_port->port_num);
>>> >> slot_ctx->dev_port |= cpu_to_le32(port);
>>> >> - slot_ctx->dev_state = (pdev->device_address & DEV_ADDR_MASK);
>>> >> - ep0_ctx->tx_info = EP_AVG_TRB_LENGTH(0x8);
>>> >> + slot_ctx->dev_state = cpu_to_le32((pdev->device_address &
>>> >> + DEV_ADDR_MASK));
>>> >> + ep0_ctx->tx_info = cpu_to_le32(EP_AVG_TRB_LENGTH(0x8));
>>> >> ep0_ctx->ep_info2 = cpu_to_le32(EP_TYPE(CTRL_EP));
>>> >> ep0_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(0) | ERROR_COUNT(3) |
>>> >> max_packets);
>>> >> @@ -925,7 +926,7 @@ static u32 cdnsp_get_max_esit_payload(struct usb_gadget *g,
>>> >> /* SuperSpeedPlus Isoc ep sending over 48k per EIST. */
>>> >> if (g->speed >= USB_SPEED_SUPER_PLUS &&
>>> >> USB_SS_SSP_ISOC_COMP(pep->endpoint.desc->bmAttributes))
>>> >> - return le32_to_cpu(pep->endpoint.comp_desc->wBytesPerInterval);
>>> >> + return le16_to_cpu(pep->endpoint.comp_desc->wBytesPerInterval);
>>> >> /* SuperSpeed or SuperSpeedPlus Isoc ep with less than 48k per esit */
>>> >> else if (g->speed >= USB_SPEED_SUPER)
>>> >> return le16_to_cpu(pep->endpoint.comp_desc->wBytesPerInterval);
>>> >> @@ -1184,11 +1185,11 @@ static int cdnsp_setup_port_arrays(struct cdnsp_device *pdev)
>>> >>
>>> >> trace_cdnsp_init("Found USB 2.0 ports and USB 3.0 ports.");
>>> >>
>>> >> - pdev->usb2_port.regs = (struct cdnsp_port_regs *)
>>> >> + pdev->usb2_port.regs = (struct cdnsp_port_regs __iomem *)
>>> >> (&pdev->op_regs->port_reg_base + NUM_PORT_REGS *
>>> >> (pdev->usb2_port.port_num - 1));
>>> >>
>>> >> - pdev->usb3_port.regs = (struct cdnsp_port_regs *)
>>> >> + pdev->usb3_port.regs = (struct cdnsp_port_regs __iomem *)
>>> >> (&pdev->op_regs->port_reg_base + NUM_PORT_REGS *
>>> >> (pdev->usb3_port.port_num - 1));
>>> >>
>>> >> diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c
>>> >> index 874d9ff5406c..e15e13ba27dc 100644
>>> >> --- a/drivers/usb/cdns3/cdnsp-ring.c
>>> >> +++ b/drivers/usb/cdns3/cdnsp-ring.c
>>> >> @@ -1432,7 +1432,7 @@ static bool cdnsp_handle_event(struct cdnsp_device *pdev)
>>> >> unsigned int comp_code;
>>> >> union cdnsp_trb *event;
>>> >> bool update_ptrs = true;
>>> >> - __le32 cycle_bit;
>>> >> + u32 cycle_bit;
>>> >> int ret = 0;
>>> >> u32 flags;
>>> >>
>>> >> @@ -2198,7 +2198,7 @@ static int cdnsp_queue_isoc_tx(struct cdnsp_device *pdev,
>>> >> * inverted in the first TDs isoc TRB.
>>> >> */
>>> >> field = TRB_TYPE(TRB_ISOC) | TRB_TLBPC(last_burst_pkt) |
>>> >> - !start_cycle | TRB_SIA | TRB_TBC(burst_count);
>>> >> + start_cycle ? 0 : 1 | TRB_SIA | TRB_TBC(burst_count);
>>> >>
>>> >> /* Fill the rest of the TRB fields, and remaining normal TRBs. */
>>> >> for (i = 0; i < trbs_per_td; i++) {
>>> >> diff --git a/drivers/usb/cdns3/cdnsp-trace.h b/drivers/usb/cdns3/cdnsp-trace.h
>>> >> index b68e282464d2..a9de1daadf07 100644
>>> >> --- a/drivers/usb/cdns3/cdnsp-trace.h
>>> >> +++ b/drivers/usb/cdns3/cdnsp-trace.h
>>> >> @@ -620,7 +620,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_slot_ctx,
>>> >> TP_fast_assign(
>>> >> __entry->info = le32_to_cpu(ctx->dev_info);
>>> >> __entry->info2 = le32_to_cpu(ctx->dev_port);
>>> >> - __entry->int_target = le64_to_cpu(ctx->int_target);
>>> >> + __entry->int_target = le32_to_cpu(ctx->int_target);
>>> >> __entry->state = le32_to_cpu(ctx->dev_state);
>>> >> ),
>>> >> TP_printk("%s", cdnsp_decode_slot_context(__entry->info,
>>> >> --
>>> >> 2.17.1
>>> >>
>>>
>>> --
>>>
>>> Regards
>>> Pawel Laszcak
>>
>>--
>>
>>Thanks,
>>Peter Chen

Next message: qiang . zhang: "[PATCH] udlfb: Fix memory leak in dlfb_usb_probe"
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In reply to: Pawel Laszczak: "RE: [PATCH 1/2] usb: cdnsp: Fixes for sparse warnings"
Next in thread: Peter Chen: "Re: [PATCH 1/2] usb: cdnsp: Fixes for sparse warnings"
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