This one seems to be a popular one which has been reported several times.
The driver detects whether the entries in the serial_pci_tbl structure
are not necessary, and prints this message. It is saying that this entry
is redundant:
+ { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH352_2S,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0, pbn_b0_bt_2_115200 },
People have had a habbit of mindlessly adding these things to the driver
table despite the driver being able to automatically detect boards. The
driver has always complained about it, but I guess developers ignore the
message. Maybe we should make the message do something else, like
msleep(1000) maybe 10 times or something to make it really noticable,
or add a WARN_ON(1) to it, or make the driver ignore the board until
it the duplicate is removed...
----- Forwarded message from Sergey Belyashov <sergey.belyashov> -----
Date: Fri, 6 Mar 2015 11:23:45 +0300
From: Sergey Belyashov <sergey.belyashov>
To: rmk+serial@xxxxxxxxxxxxxxxx
Subject: Redundant entry in serial pci_table
X-DKIM-Status: pandora.arm.linux.org.uk: gmail.com pass
Hi
I have this message in the kernel log:
[ 1.576384] serial 0000:01:0a.0: 0000:01:0a.0: Redundant entry in serial
pci_table.
[ 1.576384] Please send the output of lspci -vv, this
[ 1.576384] message (0x4348,0x3253,0x4348,0x3253), the
[ 1.576384] manufacturer and name of serial board or
[ 1.576384] modem board to rmk+serial@xxxxxxxxxxxxxxxx.
My board manufacturer is WCH name is "CH352 PCI=>DUAL SERIAL" (some oem
from china). I have attached linux driver source (comming with device. I do
not use it, because it is too old) and inf file of windows driver.
$ lspci -vv
...
01:0a.0 Serial controller: Device 4348:3253 (rev 10) (prog-if 02 [16550])
Subsystem: Device 4348:3253
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 19
Region 0: I/O ports at ec00 [size=8]
Region 1: I/O ports at e880 [size=8]
Kernel driver in use: serial
...
Best regards,
Sergey Belyashov
00:00.0 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a1)
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
00:01.0 ISA bridge: NVIDIA Corporation MCP61 LPC Bridge (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: I/O ports at 0900 [size=256]
00:01.1 SMBus: NVIDIA Corporation MCP61 SMBus (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at dc00 [size=64]
Region 4: I/O ports at 0600 [size=64]
Region 5: I/O ports at 0700 [size=64]
Capabilities: <access denied>
Kernel driver in use: nForce2_smbus
00:01.2 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev a2) (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 23
Region 0: Memory at daeff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ohci-pci
00:02.1 USB controller: NVIDIA Corporation MCP61 USB 2.0 Controller (rev a2) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin B routed to IRQ 22
Region 0: Memory at daefec00 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:04.0 PCI bridge: NVIDIA Corporation MCP61 PCI bridge (rev a1) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000e000-0000efff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr+ DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
00:05.0 Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (500ns min, 1250ns max)
Interrupt: pin B routed to IRQ 22
Region 0: Memory at daef8000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:06.0 IDE interface: NVIDIA Corporation MCP61 IDE (rev a2) (prog-if 8a [Master SecP PriP])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable)
Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable)
Region 4: I/O ports at ffa0 [size=16]
Capabilities: <access denied>
Kernel driver in use: pata_amd
00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (250ns min, 5000ns max)
Interrupt: pin A routed to IRQ 43
Region 0: Memory at daefd000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at d480 [size=8]
Capabilities: <access denied>
Kernel driver in use: forcedeth
00:08.0 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2) (prog-if 85 [Master SecO PriO])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 20
Region 0: I/O ports at d400 [size=8]
Region 1: I/O ports at d080 [size=4]
Region 2: I/O ports at d000 [size=8]
Region 3: I/O ports at cc00 [size=4]
Region 4: I/O ports at c880 [size=16]
Region 5: Memory at daefc000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: sata_nv
00:08.1 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2) (prog-if 85 [Master SecO PriO])
Subsystem: ASUSTeK Computer Inc. Device 8234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin B routed to IRQ 23
Region 0: I/O ports at c800 [size=8]
Region 1: I/O ports at c480 [size=4]
Region 2: I/O ports at c400 [size=8]
Region 3: I/O ports at c080 [size=4]
Region 4: I/O ports at c000 [size=16]
Region 5: Memory at daef3000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: sata_nv
00:09.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Memory behind bridge: daf00000-dfffffff
Prefetchable memory behind bridge: 00000000d0000000-00000000d7ffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:0b.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:0c.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Capabilities: <access denied>
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Kernel driver in use: amd64_edac
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Capabilities: <access denied>
Kernel driver in use: k8temp
01:0a.0 Serial controller: Device 4348:3253 (rev 10) (prog-if 02 [16550])
Subsystem: Device 4348:3253
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 19
Region 0: I/O ports at ec00 [size=8]
Region 1: I/O ports at e880 [size=8]
Kernel driver in use: serial
02:00.0 VGA compatible controller: NVIDIA Corporation NV43 [GeForce 6600 GT] (rev a2) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GV-NX66T128D
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 18
Region 0: Memory at dc000000 (32-bit, non-prefetchable) [size=64M]
Region 1: Memory at d0000000 (64-bit, prefetchable) [size=128M]
Region 3: Memory at db000000 (64-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at dafe0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: nvidia
----- End forwarded message -----
--
Russell King
ARM architecture Linux Kernel maintainer
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