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OpenCloudOS-Kernel
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Jack Pham 876a75cb52 usb: dwc3: gadget: Skip resizing EP's TX FIFO if already resized 
Some functions may dynamically enable and disable their endpoints
regularly throughout their operation, particularly when Set Interface
is employed to switch between Alternate Settings.  For instance the
UAC2 function has its respective endpoints for playback & capture
associated with AltSetting 1, in which case those endpoints would not
get enabled until the host activates the AltSetting.  And they
conversely become disabled when the interfaces' AltSetting 0 is
chosen.

With the DWC3 FIFO resizing algorithm recently added, every
usb_ep_enable() call results in a call to resize that EP's TXFIFO,
but if the same endpoint is enabled again and again, this incorrectly
leads to FIFO RAM allocation exhaustion as the mechanism did not
account for the possibility that endpoints can be re-enabled many
times.

Example log splat:

	dwc3 a600000.dwc3: Fifosize(3717) > RAM size(3462) ep3in depth:217973127
	configfs-gadget gadget: u_audio_start_capture:521 Error!
	dwc3 a600000.dwc3: request 000000000be13e18 was not queued to ep3in

Add another bit DWC3_EP_TXFIFO_RESIZED to dep->flags to keep track of
whether an EP had already been resized in the current configuration.
If so, bail out of dwc3_gadget_resize_tx_fifos() to avoid the
calculation error resulting from accumulating the EP's FIFO depth
repeatedly.  This flag is retained across multiple ep_disable() and
ep_enable() calls and is cleared when GTXFIFOSIZn is reset in
dwc3_gadget_clear_tx_fifos() upon receiving the next Set Config.

Fixes: 9f607a309f ("usb: dwc3: Resize TX FIFOs to meet EP bursting requirements")
Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Link: https://lore.kernel.org/r/20211021180129.27938-1-jackp@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-10-22 11:14:26 +02:00
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accessibility
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acpi ACPI fix for 5.15-rc6 2021-10-16 08:45:46 -07:00
amba
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android binder: make sure fd closes complete 2021-09-14 09:02:13 +02:00
ata ata: ahci_platform: fix null-ptr-deref in ahci_platform_enable_regulators() 2021-10-14 12:22:47 +09:00
atm
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auxdisplay
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base Driver core fixes for 5.15-rc6 2021-10-17 17:17:28 -10:00
bcma Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
block block-5.15-2021-10-17 2021-10-17 19:25:20 -10:00
bluetooth Bluetooth: btusb: Remove WAKEUP_DISABLE and add WAKEUP_AUTOSUSPEND for Realtek devices 2021-08-19 17:08:31 +02:00
bus Driver core fixes for 5.15-rc6 2021-10-17 17:17:28 -10:00
cdrom
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char IPMI: A couple of very minor fixes for style and rate limiting 2021-09-12 11:44:58 -07:00
clk clk: qcom: add select QCOM_GDSC for SM6350 2021-10-13 11:44:42 -07:00
clocksource - converted Pistachio platform to use MIPS generic kernel 2021-09-03 11:11:54 -07:00
comedi comedi: Fix memory leak in compat_insnlist() 2021-09-21 17:53:54 +02:00
connector
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counter
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cpufreq Power management fixes for 5.15-rc2 2021-09-17 12:05:04 -07:00
cpuidle - Core Frameworks 2021-09-07 12:38:59 -07:00
crypto crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() 2021-09-24 15:58:41 +08:00
cxl cxl for v5.15 2021-09-09 11:48:27 -07:00
dax libnvdimm for v5.15 2021-09-09 11:39:57 -07:00
dca
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devfreq devfreq: use HZ macros 2021-09-08 11:50:26 -07:00
dio
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dma dmaengine updates for v5.15-rc1 2021-09-09 11:07:47 -07:00
dma-buf dma-buf: DMABUF_SYSFS_STATS should depend on DMA_SHARED_BUFFER 2021-09-07 12:42:21 +05:30
edac EDAC/armada-xp: Fix output of uncorrectable error counter 2021-10-14 11:46:03 +02:00
eisa
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extcon
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firewire FireWire (IEEE 1394) subsystem updates: 2021-09-11 09:47:33 -07:00
firmware EFI fixes for v5.15 2021-10-17 17:30:49 -10:00
fpga fpga: ice40-spi: Add SPI device ID table 2021-09-27 14:00:41 -07:00
fsi
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gnss
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gpio gpio: mockup: Convert to use software nodes 2021-10-06 13:04:04 +02:00
gpu drm/panel: olimex-lcd-olinuxino: select CRC32 2021-10-15 15:05:13 +10:00
greybus
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hid HID: amd_sfh: Fix potential NULL pointer dereference 2021-09-27 10:00:43 +02:00
hsi
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hv hyperv-fixes for 5.15-rc2 2021-09-15 17:18:56 -07:00
hwmon hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field 2021-10-02 05:14:11 -07:00
hwspinlock
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hwtracing coresight: syscfg: Fix compiler warning 2021-09-14 09:03:16 +02:00
i2c i2c: mlxcpld: Modify register setting for 400KHz frequency 2021-10-04 21:56:20 +02:00
i3c
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idle
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iio Staging/IIO driver fixes for 5.15-rc6 2021-10-17 17:10:00 -10:00
infiniband RDMA/hns: Add the check of the CQE size of the user space 2021-09-27 14:49:49 -03:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2021-10-17 16:57:06 -10:00
interconnect interconnect: qcom: sdm660: Add missing a2noc qos clocks 2021-09-13 15:49:55 +03:00
iommu iommu/arm: fix ARM_SMMU_QCOM compilation 2021-10-13 21:28:44 +02:00
ipack ipack: ipoctal: fix module reference leak 2021-09-27 17:38:49 +02:00
irqchip irqchip/gic: Work around broken Renesas integration 2021-09-22 14:44:25 +01:00
isdn isdn: mISDN: Fix sleeping function called from invalid context 2021-10-09 13:42:51 +01:00
leds leds: pca955x: Switch to i2c probe_new 2021-08-20 11:00:08 +02:00
macintosh memblock: introduce saner 'memblock_free_ptr()' interface 2021-09-14 13:23:22 -07:00
mailbox mailbox: cmdq: add multi-gce clocks support for mt8195 2021-08-31 22:57:45 -05:00
mcb mcb: fix error handling in mcb_alloc_bus() 2021-09-14 11:22:26 +02:00
md dm: fix mempool NULL pointer race when completing IO 2021-10-12 13:54:10 -04:00
media asm-generic: build fixes for v5.15 2021-10-08 11:57:54 -07:00
memory
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memstick Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
message
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mfd - Core Frameworks 2021-09-07 12:38:59 -07:00
misc eeprom: 93xx46: fix MODULE_DEVICE_TABLE 2021-10-15 10:54:02 +02:00
mmc asm-generic: build fixes for v5.15 2021-10-08 11:57:54 -07:00
most
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mtd mtd: rawnand: qcom: Update code word value for raw read 2021-09-14 19:36:00 +02:00
mux
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net Networking fixes for 5.15-rc6. 2021-10-14 18:21:39 -04:00
nfc nfc: st-nci: Add SPI ID matching DT compatible 2021-09-23 12:53:06 +01:00
ntb Bug fixes and clean-ups for Linux v5.15 2021-09-07 13:05:02 -07:00
nubus
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nvdimm nvdimm/pmem: fix creating the dax group 2021-09-27 11:40:43 -07:00
nvme nvme fixes for Linux 5.15: 2021-10-14 09:07:14 -06:00
nvmem nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells 2021-10-13 15:09:58 +02:00
of fbdev: simplefb: fix Kconfig dependencies 2021-10-06 11:12:28 +02:00
opp Merge branches 'pm-pci', 'pm-sleep', 'pm-domains' and 'powercap' 2021-08-30 19:25:42 +02:00
parisc parisc: Move pci_dev_is_behind_card_dino to where it is used 2021-09-09 12:44:31 +02:00
parport parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
pci pci-v5.15-fixes-2 2021-10-16 09:00:46 -07:00
pcmcia
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perf KVM: arm64: Fix PMU probe ordering 2021-09-20 12:43:34 +01:00
phy Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
pinctrl asm-generic: build fixes for v5.15 2021-10-08 11:57:54 -07:00
platform Revert "platform/x86: i2c-multi-instantiate: Don't create platform device for INT3515 ACPI nodes" 2021-10-20 19:31:13 +02:00
pnp
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power power supply and reset changes for the v5.15 series 2021-08-30 11:47:32 -07:00
powercap powercap: Add Power Limit4 support for Alder Lake SoC 2021-08-25 20:12:16 +02:00
pps
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ps3
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ptp Networking fixes for 5.15-rc5, including fixes from xfrm, bpf, 2021-10-07 09:50:31 -07:00
pwm pwm: mtk-disp: Implement atomic API .get_state() 2021-09-02 22:27:46 +02:00
rapidio
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ras
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regulator regulator: max14577: Revert "regulator: max14577: Add proper module aliases strings" 2021-09-17 13:16:38 +01:00
remoteproc
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reset ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
rpmsg
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rtc rtc: cmos: Disable irq around direct invocation of cmos_interrupt() 2021-09-14 10:20:19 +02:00
s390 s390 updates for 5.15-rc4 2021-10-01 14:45:23 -07:00
sbus
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scsi scsi: iscsi: Fix iscsi_task use after free 2021-10-04 23:40:11 -04:00
sh
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siox
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slimbus Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
soc Driver core fixes for 5.15-rc6 2021-10-17 17:17:28 -10:00
soundwire sound updates for 5.15-rc1 2021-09-01 10:29:29 -07:00
spi spi-mux: Fix false-positive lockdep splats 2021-10-14 13:32:19 +01:00
spmi
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ssb
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staging Staging/IIO driver fixes for 5.15-rc6 2021-10-17 17:10:00 -10:00
target scsi: target: Fix spelling mistake "CONFLIFT" -> "CONFLICT" 2021-09-22 00:17:29 -04:00
tc
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tee tee: optee: Fix missing devices unregister during optee_remove 2021-10-12 13:24:39 +02:00
thermal thermal/drivers/tsens: Fix wrong check for tzd in irq handlers 2021-09-21 15:17:11 +02:00
thunderbolt thunderbolt: build kunit tests without structleak plugin 2021-10-06 17:53:49 -06:00
tty Serial driver fix for 5.15-rc6 2021-10-17 17:06:31 -10:00
uio
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usb usb: dwc3: gadget: Skip resizing EP's TX FIFO if already resized 2021-10-22 11:14:26 +02:00
vdpa vdpa/mlx5: Avoid executing set_vq_ready() if device is reset 2021-09-14 18:10:43 -04:00
vfio vfio/pci: add missing identifier name in argument of function prototype 2021-09-23 14:12:36 -06:00
vhost virtio,vdpa: fixes 2021-10-17 18:17:19 -10:00
video video: fbdev: gbefb: Only instantiate device when built for IP32 2021-10-06 11:12:28 +02:00
virt
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virtio virtio: write back F_VERSION_1 before validate 2021-10-13 08:35:36 -04:00
visorbus
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vlynq
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vme
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w1
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watchdog watchdog/sb_watchdog: fix compilation problem due to COMPILE_TEST 2021-09-27 11:57:19 -07:00
xen xen: branch for v5.15-rc5 2021-10-08 12:55:23 -07:00
zorro
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Kconfig firmware: include drivers/firmware/Kconfig unconditionally 2021-10-07 16:51:26 +02:00
Makefile remove the lightnvm subsystem 2021-08-14 15:54:09 -06:00