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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org,
	"Sebastian Sjoholm" <sebastian.sjoholm@gmail.com>,
	"Bjørn Mork" <bjorn@mork.no>, "Johan Hovold" <johan@kernel.org>
Subject: [PATCH 5.4 10/54] USB: serial: option: fix Quectel BG96 matching
Date: Thu, 10 Dec 2020 15:26:47 +0100	[thread overview]
Message-ID: <20201210142602.546618598@linuxfoundation.org> (raw)
In-Reply-To: <20201210142602.037095225@linuxfoundation.org>

From: Bjørn Mork <bjorn@mork.no>

commit c98fff7332dbd6e028969f8c2bda3d7bc7a024d8 upstream.

This is a partial revert of commit 2bb70f0a4b23 ("USB: serial:
option: support dynamic Quectel USB compositions")

The Quectel BG96 is different from most other modern Quectel modems,
having serial functions with 3 endpoints using ff/ff/ff and ff/fe/ff
class/subclass/protocol. Including it in the change to accommodate
dynamic function mapping was incorrect.

Revert to interface number matching for the BG96, assuming static
layout of the RMNET function on interface 4. This restores support
for the serial functions on interfaces 2 and 3.

Full lsusb output for the BG96:

Bus 002 Device 003: ID 2c7c:0296
Device Descriptor:
 bLength                18
 bDescriptorType         1
 bcdUSB               2.00
 bDeviceClass            0 (Defined at Interface level)
 bDeviceSubClass         0
 bDeviceProtocol         0
 bMaxPacketSize0        64
 idVendor           0x2c7c
 idProduct          0x0296
 bcdDevice            0.00
 iManufacturer           3 Qualcomm, Incorporated
 iProduct                2 Qualcomm CDMA Technologies MSM
 iSerial                 4 d1098243
 bNumConfigurations      1
 Configuration Descriptor:
   bLength                 9
   bDescriptorType         2
   wTotalLength          145
   bNumInterfaces          5
   bConfigurationValue     1
   iConfiguration          1 Qualcomm Configuration
   bmAttributes         0xe0
     Self Powered
     Remote Wakeup
   MaxPower              500mA
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       0
     bNumEndpoints           2
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass    255 Vendor Specific Subclass
     bInterfaceProtocol    255 Vendor Specific Protocol
     iInterface              0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x01  EP 1 OUT
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        1
     bAlternateSetting       0
     bNumEndpoints           2
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass    255 Vendor Specific Subclass
     bInterfaceProtocol    255 Vendor Specific Protocol
     iInterface              0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x02  EP 2 OUT
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        2
     bAlternateSetting       0
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass    255 Vendor Specific Subclass
     bInterfaceProtocol    255 Vendor Specific Protocol
     iInterface              0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x83  EP 3 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0040  1x 64 bytes
       bInterval               5
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x03  EP 3 OUT
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        3
     bAlternateSetting       0
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass    254
     bInterfaceProtocol    255
     iInterface              0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x85  EP 5 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0040  1x 64 bytes
       bInterval               5
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x86  EP 6 IN
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x04  EP 4 OUT
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        4
     bAlternateSetting       0
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass    255 Vendor Specific Subclass
     bInterfaceProtocol    255 Vendor Specific Protocol
     iInterface              0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x87  EP 7 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0040  1x 64 bytes
       bInterval               5
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x88  EP 8 IN
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x05  EP 5 OUT
       bmAttributes            2
         Transfer Type            Bulk
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0200  1x 512 bytes
       bInterval               0
Device Qualifier (for other device speed):
 bLength                10
 bDescriptorType         6
 bcdUSB               2.00
 bDeviceClass            0 (Defined at Interface level)
 bDeviceSubClass         0
 bDeviceProtocol         0
 bMaxPacketSize0        64
 bNumConfigurations      1
Device Status:     0x0000
 (Bus Powered)

Cc: Sebastian Sjoholm <sebastian.sjoholm@gmail.com>
Fixes: 2bb70f0a4b23 ("USB: serial: option: support dynamic Quectel USB compositions")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/serial/option.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1106,9 +1106,8 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0xff, 0xff),
 	  .driver_info = NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0, 0) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0xff, 0xff),
-	  .driver_info = NUMEP2 },
-	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0, 0) },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
+	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) },



  parent reply	other threads:[~2020-12-10 14:39 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-10 14:26 [PATCH 5.4 00/54] 5.4.83-rc1 review Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 01/54] pinctrl: baytrail: Replace WARN with dev_info_once when setting direct-irq pin to output Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 02/54] pinctrl: baytrail: Fix pin being driven low for a while on gpiod_get(..., GPIOD_OUT_HIGH) Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 03/54] Partially revert bpf: Zero-fill re-used per-cpu map element Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 04/54] usb: gadget: f_fs: Use local copy of descriptors for userspace copy Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 05/54] USB: serial: kl5kusb105: fix memleak on open Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 06/54] USB: serial: ch341: add new Product ID for CH341A Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 07/54] USB: serial: ch341: sort device-id entries Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 08/54] USB: serial: option: add Fibocom NL668 variants Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 09/54] USB: serial: option: add support for Thales Cinterion EXS82 Greg Kroah-Hartman
2020-12-10 14:26 ` Greg Kroah-Hartman [this message]
2020-12-10 14:26 ` [PATCH 5.4 11/54] tty: Fix ->pgrp locking in tiocspgrp() Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 12/54] tty: Fix ->session locking Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 13/54] ALSA: hda/realtek: Fix bass speaker DAC assignment on Asus Zephyrus G14 Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 14/54] ALSA: hda/realtek: Add mute LED quirk to yet another HP x360 model Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 15/54] ALSA: hda/realtek: Enable headset of ASUS UX482EG & B9400CEA with ALC294 Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 16/54] ALSA: hda/realtek - Add new codec supported for ALC897 Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 17/54] ALSA: hda/generic: Add option to enforce preferred_dacs pairs Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 18/54] ftrace: Fix updating FTRACE_FL_TRAMP Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 19/54] cifs: allow syscalls to be restarted in __smb_send_rqst() Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 20/54] cifs: fix potential use-after-free in cifs_echo_request() Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 21/54] s390/pci: fix CPU address in MSI for directed IRQ Greg Kroah-Hartman
2020-12-10 16:34   ` Niklas Schnelle
2020-12-10 16:46     ` Greg Kroah-Hartman
2020-12-10 14:26 ` [PATCH 5.4 22/54] i2c: imx: Dont generate STOP condition if arbitration has been lost Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 23/54] thunderbolt: Fix use-after-free in remove_unplugged_switch() Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 24/54] drm/i915/gt: Program mocs:63 for cache eviction on gen9 Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 25/54] scsi: mpt3sas: Fix ioctl timeout Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 26/54] dm writecache: fix the maximum number of arguments Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 27/54] powerpc/64s/powernv: Fix memory corruption when saving SLB entries on MCE Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 28/54] genirq/irqdomain: Add an irq_create_mapping_affinity() function Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 29/54] powerpc/pseries: Pass MSI affinity to irq_create_mapping() Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 30/54] dm: fix bug with RCU locking in dm_blk_report_zones Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 31/54] dm: remove invalid sparse __acquires and __releases annotations Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 32/54] x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 33/54] coredump: fix core_pattern parse error Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 34/54] mm: list_lru: set shrinker map bit when child nr_items is not zero Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 35/54] mm/swapfile: do not sleep with a spin lock held Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 36/54] speakup: Reject setting the speakup line discipline outside of speakup Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 37/54] i2c: imx: Fix reset of I2SR_IAL flag Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 38/54] i2c: imx: Check for I2SR_IAL after every byte Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 39/54] spi: bcm2835: Release the DMA channel if probe fails after dma_init Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 40/54] iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 41/54] tracing: Fix userstacktrace option for instances Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 42/54] lib/syscall: fix syscall registers retrieval on 32-bit platforms Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 43/54] can: af_can: can_rx_unregister(): remove WARN() statement from list operation sanity check Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 44/54] gfs2: check for empty rgrp tree in gfs2_ri_update Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 45/54] netfilter: ipset: prevent uninit-value in hash_ip6_add Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 46/54] tipc: fix a deadlock when flushing scheduled work Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 47/54] ASoC: wm_adsp: fix error return code in wm_adsp_load() Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 48/54] rtw88: debug: Fix uninitialized memory in debugfs code Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 49/54] i2c: qup: Fix error return code in qup_i2c_bam_schedule_desc() Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 50/54] dm writecache: remove BUG() and fail gracefully instead Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 51/54] Input: i8042 - fix error return code in i8042_setup_aux() Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 52/54] netfilter: nf_tables: avoid false-postive lockdep splat Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 53/54] netfilter: nftables_offload: set address type in control dissector Greg Kroah-Hartman
2020-12-10 14:27 ` [PATCH 5.4 54/54] x86/insn-eval: Use new for_each_insn_prefix() macro to loop over prefixes bytes Greg Kroah-Hartman
2020-12-10 21:04 ` [PATCH 5.4 00/54] 5.4.83-rc1 review Jon Hunter

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