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44ebd037c5
android_kernel_xiaomi_sm8350/drivers/usb/host
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Sarah Sharp 44ebd037c5 USB: xhci: Fix check for room on the ring. 
The length of the scatter gather list a driver can enqueue is limited by
the bus' sg_tablesize to 62 entries.  Each entry will be described by at
least one transfer request block (TRB).  If the entry's buffer crosses a
64KB boundary, then that entry will have to be described by two or more
TRBs.  So even if the USB device driver respects sg_tablesize, the whole
scatter list may take more than 62 TRBs to describe, and won't fit on
the ring.

Don't assume that an empty ring means there is enough room on the
transfer ring.  The old code would unconditionally queue this too-large
transfer, and over write the beginning of the transfer.  This would mean
the cycle bit was unchanged in those overwritten transfers, causing the
hardware to think it didn't own the TRBs, and the host would seem to
hang.

Now drivers may see submit_urb() fail with -ENOMEM if the transfers are
too big to fit on the ring.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-20 13:21:30 -07:00
..
whci include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ehci-atmel.c USB: ehci-atmel.c: use resource_size() 2010-03-02 14:53:18 -08:00
ehci-au1xxx.c USB: ehci-au1xxx.c: use platform_get_resource() and resource_size() 2010-03-02 14:53:18 -08:00
ehci-dbg.c
ehci-fsl.c USB: ehci-fsl: Add power management support 2010-03-02 14:53:15 -08:00
ehci-fsl.h
ehci-hcd.c USB: EHCI: defer reclamation of siTDs 2010-04-22 15:18:28 -07:00
ehci-hub.c usb: Increase timeout value for device reset 2010-04-22 15:18:29 -07:00
ehci-ixp4xx.c
ehci-mem.c USB: EHCI: defer reclamation of siTDs 2010-04-22 15:18:28 -07:00
ehci-mxc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ehci-omap.c USB: ehci: omap: fix kernel panic with rmmod 2010-04-22 15:18:21 -07:00
ehci-orion.c USB: ehci-orion.c: use resource_size() 2010-03-02 14:53:17 -08:00
ehci-pci.c
ehci-ppc-of.c USB: Convert concatenated __FILE__ to %s, __FILE__ 2010-03-02 14:54:59 -08:00
ehci-ps3.c
ehci-q.c
ehci-sched.c USB: EHCI: defer reclamation of siTDs 2010-04-22 15:18:28 -07:00
ehci-w90x900.c
ehci-xilinx-of.c USB: Convert concatenated __FILE__ to %s, __FILE__ 2010-03-02 14:54:59 -08:00
ehci.h USB: EHCI: defer reclamation of siTDs 2010-04-22 15:18:28 -07:00
fhci-dbg.c
fhci-hcd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fhci-hub.c
fhci-mem.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fhci-q.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fhci-sched.c
fhci-tds.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fhci.h
hwa-hc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
imx21-dbg.c USB: MXC: Add i.MX21 specific USB host controller driver. 2010-03-02 14:52:55 -08:00
imx21-hcd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
imx21-hcd.h USB: MXC: Add i.MX21 specific USB host controller driver. 2010-03-02 14:52:55 -08:00
isp116x-hcd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
isp116x.h
isp1362-hcd.c USB: remove obsolete config in kernel source (USB_HCD_DMA) 2010-03-02 14:54:37 -08:00
isp1362.h
isp1760-hcd.c USB: isp1760: Flush the D-cache for the pipe-in transfer buffers 2010-03-02 14:54:53 -08:00
isp1760-hcd.h
isp1760-if.c USB host: make Open Firmware device id constant 2010-03-02 14:54:18 -08:00
Kconfig USB: MXC: Add i.MX21 specific USB host controller driver. 2010-03-02 14:52:55 -08:00
Makefile USB: xhci: rename driver to xhci_hcd 2010-03-19 07:24:08 -07:00
ohci-at91.c USB: ohci-at91: fix power management hanging 2010-04-30 09:25:12 -07:00
ohci-au1xxx.c
ohci-da8xx.c USB: OHCI: DA8xx/OMAP-L1x: fix up macro rename 2010-04-22 15:18:24 -07:00
ohci-dbg.c USB: Convert concatenated __FILE__ to %s, __FILE__ 2010-03-02 14:54:59 -08:00
ohci-ep93xx.c
ohci-hcd.c USB: OHCI: DA8xx/OMAP-L1x glue layer 2010-03-02 14:55:06 -08:00
ohci-hub.c USB: OHCI: don't look at the root hub to get the number of ports 2010-04-30 09:25:10 -07:00
ohci-lh7a404.c USB: Convert concatenated __FILE__ to %s, __FILE__ 2010-03-02 14:54:59 -08:00
ohci-mem.c
ohci-omap.c
ohci-pci.c
ohci-pnx4008.c USB: fix I2C API usage in ohci-pnx4008. 2010-03-02 14:55:15 -08:00
ohci-pnx8550.c
ohci-ppc-of.c USB: Convert concatenated __FILE__ to %s, __FILE__ 2010-03-02 14:54:59 -08:00
ohci-ppc-soc.c USB: Convert concatenated __FILE__ to %s, __FILE__ 2010-03-02 14:54:59 -08:00
ohci-ps3.c
ohci-pxa27x.c
ohci-q.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ohci-s3c2410.c
ohci-sa1111.c USB: Convert concatenated __FILE__ to %s, __FILE__ 2010-03-02 14:54:59 -08:00
ohci-sh.c
ohci-sm501.c
ohci-ssb.c
ohci-tmio.c
ohci.h
oxu210hp-hcd.c USB: oxu210hp: release spinlock on error path 2010-04-30 09:25:11 -07:00
oxu210hp.h
pci-quirks.c
pci-quirks.h
r8a66597-hcd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
r8a66597.h
sl811_cs.c
sl811-hcd.c USB: sl811-hcd: Fix device disconnect 2010-04-30 09:25:12 -07:00
sl811.h
u132-hcd.c
uhci-debug.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
uhci-hcd.c USB: fix crash in uhci_scan_schedule 2010-03-02 14:54:12 -08:00
uhci-hcd.h
uhci-hub.c
uhci-q.c
xhci-dbg.c USB: xhci: Fix compile issues with xhci_get_slot_state() 2010-03-02 14:54:01 -08:00
xhci-ext-caps.h USB: xhci: Fix finding extended capabilities registers 2010-03-02 14:55:02 -08:00
xhci-hub.c USB: xhci: Allow roothub ports to be disabled. 2010-03-02 14:53:12 -08:00
xhci-mem.c USB: xhci: properly set endpoint context fields for periodic eps. 2010-04-30 09:25:10 -07:00
xhci-pci.c USB: xhci: Limit bus sg_tablesize to 62 TRBs. 2010-05-20 13:21:30 -07:00
xhci-ring.c USB: xhci: Fix check for room on the ring. 2010-05-20 13:21:30 -07:00
xhci.c USB: xhci: Fix issue with set interface after stall. 2010-05-20 13:21:30 -07:00
xhci.h USB: xhci: properly set endpoint context fields for periodic eps. 2010-04-30 09:25:10 -07:00