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2010-05-19padata: Add some code commentsSteffen Klassert
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19padata: Flush the padata queues activelySteffen Klassert
yield was used to wait until all references of the internal control structure in use are dropped before it is freed. This patch implements padata_flush_queues which actively flushes the padata percpu queues in this case. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19padata: Use a timer to handle remaining objects in the reorder queues Steffen Klassert
padata_get_next needs to check whether the next object that need serialization must be parallel processed by the local cpu. This check was wrong implemented and returned always true, so the try_again loop in padata_reorder was never taken. This can lead to object leaks in some rare cases due to a race that appears with the trylock in padata_reorder. The try_again loop was not a good idea after all, because a cpu could take that loop frequently, so we handle this with a timer instead. This patch adds a timer to handle the race that appears with the trylock. If cpu1 queues an object to the reorder queue while cpu2 holds the pd->lock but left the while loop in padata_reorder already, cpu2 can't care for this object and cpu1 exits because it can't get the lock. Usually the next cpu that takes the lock cares for this object too. We need the timer just if this object was the last one that arrives to the reorder queues. The timer function sends it out in this case. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19crypto: shash - Remove usage of CRYPTO_MINALIGNHerbert Xu
The macro CRYPTO_MINALIGN is not meant to be used directly. This patch replaces it with crypto_tfm_ctx_alignment. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-14crypto: mv_cesa - Use resource_sizeTobias Klauser
Use the resource_size function instead of manually calculating the resource size. This reduces the chance of introducing off-by-one errors. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-14crypto: omap - OMAP macros correctedDmitry Kasatkin
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03padata: Use get_online_cpus/put_online_cpusSteffen Klassert
This patch puts get_online_cpus/put_online_cpus around the places we modify the padata cpumask to ensure that no cpu goes offline during this operation. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03padata: Initialize the padata queues only for the used cpusSteffen Klassert
padata_alloc_pd set up queues for all possible cpus. This patch changes this to set up the queues just for the used cpus. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03padata: Remove superfluous might_sleepSteffen Klassert
might_sleep() was placed before mutex_lock() in some places. We remove them because mutex_lock() does might_sleep() too. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03padata: cpu hotplug code should depend on CONFIG_HOTPLUG_CPUSteffen Klassert
This patch makes the padata cpu hotplug code dependend on CONFIG_HOTPLUG_CPU. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Herbert Xu
2010-05-03padata: Dont scale the parallel objects with the cpusSteffen Klassert
Scaling the maximum number of objects in the parallel codepath can lead to out of memory problems on bigsmp machines. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03crypto: omap - sha1 & md5 driverDmitry Kasatkin
Earlier kernel contained omap sha1 and md5 driver, which was not maintained, was not ported to new crypto APIs and removed from the source tree. - implements async crypto API using dma and cpu. - supports multiple sham instances if available - hmac - concurrent requests Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03crypto: omap - Updates omap sham device related platform codeDmitry Kasatkin
- registration with multi OMAP kernels support - clocks Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03crypto: algapi - Remove unneeded null checkDan Carpenter
We don't check "frontend" consistently in crypto_init_spawn2(). We check it at the start of the function but then we dereference it unconditionally in the parameter list when we call crypto_init_spawn(). I looked at the places that call crypto_init_spawn2() and "frontend" is always a valid pointer so I removed the check for null. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: vme: Re-introduce necessary brackets Staging: iio: fix up the iio_get_new_idr_val comment Staging: add Add Sitecom WL-349 to rtl8192su Staging: rt2860: add Belkin F5D8055 Wireless-N USB Dongle device id staging: rtl8192su: add Support for Belkin F5D8053 v6 Staging: dt3155: fix 50Hz configuration staging: usbip: Fix deadlock Staging: rtl8192su: add USB ID for 0bda:8171 Staging: hv: name network device ethX rather than sethX Staging: hv: Fix up memory leak on HvCleanup Staging: hv: Fix a bug affecting IPv6 staging: iio: ring_sw: Fix incorrect test on successful read of last value, causes infinite loop staging: iio: Function iio_get_new_idr_val() return negative value if fails. Staging: iio: adc: fix dangling pointers Staging: iio: light: fix dangling pointers Staging: iio: test for failed allocation staging: iio: lis3l02dq - incorrect ws used in container of call.
2010-04-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: serial: drivers/serial/pmac_zilog.c: add missing unlock serial: 8250_pnp - add Fujitsu Wacom device tty: Fix regressions in the char driver conversion
2010-04-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (29 commits) USB: sl811-hcd: Fix device disconnect USB: ohci-at91: fix power management hanging USB: rename usb_buffer_alloc() and usb_buffer_free() USB: ti_usb: fix printk format warning USB: gadget: s3c-hsotg: Add missing unlock USB: fix build on OMAPs if CONFIG_PM_RUNTIME is not set USB: oxu210hp: release spinlock on error path USB: serial: option: add cinterion device id USB: serial: option: ZTEAC8710 Support with Device ID 0xffff USB: serial: pl2303: Hybrid reader Uniform HCR331 USB: option: add ID for ZTE MF 330 USB: xhci: properly set endpoint context fields for periodic eps. USB: xhci: properly set the "Mult" field of the endpoint context. USB: OHCI: don't look at the root hub to get the number of ports USB: don't choose configs with no interfaces USB: cdc-acm: add another device quirk USB: fix testing the wrong variable in fs_create_by_name() usb: Fix tusb6010 for DMA API musb_core: fix musb_init_controller() error cleanup path MUSB: fix DaVinci glue layer dependency ...
2010-04-30edac, mce: Fix wrong mask and macro usageBorislav Petkov
Correct two mishaps which prevented reporting error type (CECC vs UECC) and extended error description. Cc: <stable@kernel.org> # 32.x, 33.x Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-30Inotify: Fix build failure in inotify user supportRalf Baechle
CONFIG_INOTIFY_USER defined but CONFIG_ANON_INODES undefined will result in the following build failure: LD vmlinux fs/built-in.o: In function 'sys_inotify_init1': (.text.sys_inotify_init1+0x22c): undefined reference to 'anon_inode_getfd' fs/built-in.o: In function `sys_inotify_init1': (.text.sys_inotify_init1+0x22c): relocation truncated to fit: R_MIPS_26 against 'anon_inode_getfd' make[2]: *** [vmlinux] Error 1 make[1]: *** [sub-make] Error 2 make: *** [all] Error 2 Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-30Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
* 'merge' of git://git.secretlab.ca/git/linux-2.6: spi: spidev_test gives error upon 1-byte transfer omap2_mcspi: small fixes of output data format omap2_mcspi: Flush posted writes spi: spi_device memory should be released instead of device. spi: release device claimed by bus_find_device_by_name of: check for IS_ERR() serial/mpc52xx_uart: Drop outdated comments gpio: potential null dereference
2010-04-30Staging: vme: Re-introduce necessary bracketsMartyn Welch
Somehow I managed to remove a set of rather necessary brackets in commit 29848ac9f3b33bf171439ae2d66d40e6a71446c4. Put them back. Signed-off-by: Martyn Welch <martyn.welch@ge.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: iio: fix up the iio_get_new_idr_val commentAndrew Morton
improve the comment a bit Cc: Greg KH <greg@kroah.com> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Sonic Zhang <sonic.adi@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: add Add Sitecom WL-349 to rtl8192suRodrigo Linfati
Add usb id of Sitecom WL-349 to rtl8192su Signed-off-by: Rodrigo Linfati <rodrigo@linfati.cl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: rt2860: add Belkin F5D8055 Wireless-N USB Dongle device idChris Largret
Add Belkin F5D8055 Wireless-N USB support to the rt2870 staging driver. Signed-off-by: Chris Largret <largret@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30staging: rtl8192su: add Support for Belkin F5D8053 v6Richard Airlie
Please find attached a patch which adds the device ID for the Belkin F5D8053 v6 to the rtl8192su driver. I've tested this in 2.6.34-rc3 (Ubuntu 9.10 amd64) and the network adapter is working flawlessly. Signed-off-by: Richard Airlie <richard@backtrace.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: dt3155: fix 50Hz configurationH Hartley Sweeten
According to the header file, dt3155_io.h, the 50/60 Hz configuration is controlled by a bit in the I2C CSR2 register (bit 2). The function dt3155_init_isr actually reads the I2C CONFIG register into the global I2C_CSR union variable then modifies the bit. It then does a write to the I2C CONFIG register with the global I2C_CONFIG union variable which is not even set with a value anywhere in the driver. My guess is 50Hz operation doesn't even work as-is. Fix this by actually reading and writing the correct register with the correct value. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Simon Horman <horms@verge.net.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30staging: usbip: Fix deadlockEric Lescouet
When detaching a port from the client side (usbip --detach 0), the event thread, on the server side, is going to deadlock. The "eh" server thread is getting USBIP_EH_RESET event and calls: -> stub_device_reset() -> usb_reset_device() the USB framework is then calling back _in the same "eh" thread_ : -> stub_disconnect() -> usbip_stop_eh() -> wait_for_completion() the "eh" thread is being asleep forever, waiting for its own completion. This patch checks if "eh" is the current thread, in usbip_stop_eh(). Signed-off-by: Eric Lescouet <eric@lescouet.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: rtl8192su: add USB ID for 0bda:8171Pavel Roskin
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: hv: name network device ethX rather than sethXStephen Hemminger
This patch makes the HyperV network device use the same naming scheme as other virtual drivers (Xen, KVM). In an ideal world, userspace tools would not care what the name is, but some users and applications do care. Vyatta CLI is one of the tools that does depend on what the name is. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Cc: Hank Janssen <hjanssen@microsoft.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: hv: Fix up memory leak on HvCleanupCyrill Gorcunov
Don't assign NULL too early Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Hank Janssen <hjanssen@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: hv: Fix a bug affecting IPv6Haiyang Zhang
Fix a bug affecting IPv6 Added the multicast flag for proper IPv6 function. Reported-by: Toshikazu Sakai <toshikas@microsoft.com> Signed-off-by: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30staging: iio: ring_sw: Fix incorrect test on successful read of last value, ↵Jonathan Cameron
causes infinite loop This is a bad one. The test means that almost no reads of the last value ever succeed! Result is an infinite loop. Another one for the 'oops' category. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30staging: iio: Function iio_get_new_idr_val() return negative value if fails.Sonic Zhang
Function iio_get_new_idr_val() return negative value if fails. So, only error when ret < 0 in iio_device_register_eventset(). Signed-off-by: Sonic Zhang <sonic.adi@gmail.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: iio: adc: fix dangling pointersWolfram Sang
Fix I2C-drivers which missed setting clientdata to NULL before freeing the structure it points to. Also fix drivers which do this _after_ the structure was freed already. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: iio: light: fix dangling pointersWolfram Sang
Fix I2C-drivers which missed setting clientdata to NULL before freeing the structure it points to. Also fix drivers which do this _after_ the structure was freed already. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30Staging: iio: test for failed allocationDan Carpenter
We should return test to see if iio_allocate_trigger() fails and return -ENOMEM. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30staging: iio: lis3l02dq - incorrect ws used in container of call.Jonathan Cameron
The word oops comes to mind. Original patch to merge the two work queues in here (prior to Greg taking them into staging) changed the top half to only use one of them and the bottom half to assume it was the other. Currently causes a NULL pointer dereference if you enable any of the events on an lis3l02dq. Just goes to show I need a few more regression tests. Signed-of-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: sl811-hcd: Fix device disconnectMichael Hennerich
A while ago I provided a patch that fixed device detection after device removal (USB: sl811-hcd: Fix device disconnect). Chris Brissette pointed out that the detection/removal counter method to distinguish insert or remove my fail under certain conditions. Latest SL811HS datasheet (Document 38-08008 Rev. *D) indicates that bit 6 (SL11H_INTMASK_RD) of the Interrupt Status Register together with bit 5 (SL11H_INTMASK_INSRMV) can be used to determine whether a device has been inserted or removed. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: ohci-at91: fix power management hangingPatrice Vilchez
A hanging has been detected in ohci-at91 while going in suspend to ram. This is due to asynchronous operations between ohci reset and ohci clocks shutdown. This patch adds the reading of the control register between the reset of the ohci and clocks stop. This "flush the writes" idea was taken from ohci-hcd.c file (ohci_shutdown() function). Signed-off-by: Patrice Vilchez <patrice.vilchez@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: rename usb_buffer_alloc() and usb_buffer_free()Daniel Mack
For more clearance what the functions actually do, usb_buffer_alloc() is renamed to usb_alloc_coherent() usb_buffer_free() is renamed to usb_free_coherent() They should only be used in code which really needs DMA coherency. [added compatibility macros so we can convert things easier - gregkh] Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Pedro Ribeiro <pedrib@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: ti_usb: fix printk format warningRandy Dunlap
Fix printk format warning in usbserial/ti_usb: drivers/usb/serial/ti_usb_3410_5052.c:1738: warning: format '%d' expects type 'int', but argument 5 has type 'size_t' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: gadget: s3c-hsotg: Add missing unlockJulia Lawall
In an error handling case the lock is not unlocked. The return is converted to a goto, to share the unlock at the end of the function. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ expression E1; identifier f; @@ f (...) { <+... * spin_lock_irqsave (E1,...); ... when != E1 * return ...; ...+> } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: fix build on OMAPs if CONFIG_PM_RUNTIME is not setAnand Gadiyar
With patch as1329 (USB: convert to the runtime PM framework), we make USB_SUSPEND depend on PM_RUNTIME instead of CONFIG_PM. Also, CONFIG_USB_OTG selects CONFIG_USB_SUSPEND. If PM_RUNTIME is not enabled, and we try to enable USB_OTG, we will end up with CONFIG_USB_SUSPEND selected. This is due to a known bug with the select statement. This makes the build break on various OMAP configs (which have CONFIG_USB_OTG set by default, but do not yet have CONFIG_PM_RUNTIME enabled). Avoid this by changing the logic for CONFIG_USB_OTG from "select USB_SUSPEND" to "depends on USB_SUSPEND" Signed-off-by: Anand Gadiyar <gadiyar@ti.com> CC: Michal Marek <mmarek@suse.cz> CC: Tony Lindgren <tony@atomide.com> CC: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: oxu210hp: release spinlock on error pathDan Carpenter
Smatch complained about this missing spinlock. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: serial: option: add cinterion device idGreg Kroah-Hartman
This adds a device id for a Cinterion device. Reported-by: John Race <John.Race@roscom.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: serial: option: ZTEAC8710 Support with Device ID 0xffffMahesh Kuruganti
PATCH TO EXTEND SUPPORT TO AC8710 WITH 0xFFFF Product ID. Signed-off-by: Mahesh Kuruganti <maheshkuruganti@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: serial: pl2303: Hybrid reader Uniform HCR331Simone Contini
I tried a magnetic stripe reader (http://www.kimaldi.com/kimaldi_eng/productos/lectores_de_tarjetas/lectores_tarjeta_chip_y_dni/lector_hibrido_uniform_hcr_331) and I see that it is interfaced with a PL2303. I wrote a patch to use your driver which simply adds the product ID for the device and it seems working fine. From: Simone Contini <s.contini@oltrelinux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: option: add ID for ZTE MF 330Dominik Brodowski
Based on the information provided for by Paweł Drobek, add a second vendor ID and the correct product ID for ZTE MF 330. Reported-by: Paweł Drobek <pawel.drobek@gmail.com> Signed-off: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30USB: xhci: properly set endpoint context fields for periodic eps.Sarah Sharp
For periodic endpoints, we must let the xHCI hardware know the maximum payload an endpoint can transfer in one service interval. The xHCI specification refers to this as the Maximum Endpoint Service Interval Time Payload (Max ESIT Payload). This is used by the hardware for bandwidth management and scheduling of packets. For SuperSpeed endpoints, the maximum is calculated by multiplying the max packet size by the number of bursts and the number of opportunities to transfer within a service interval (the Mult field of the SuperSpeed Endpoint companion descriptor). Devices advertise this in the wBytesPerInterval field of their SuperSpeed Endpoint Companion Descriptor. For high speed devices, this is taken by multiplying the max packet size by the "number of additional transaction opportunities per microframe" (the high bits of the wMaxPacketSize field in the endpoint descriptor). For FS/LS devices, this is just the max packet size. The other thing we must set in the endpoint context is the Average TRB Length. This is supposed to be the average of the total bytes in the transfer descriptor (TD), divided by the number of transfer request blocks (TRBs) it takes to describe the TD. This gives the host controller an indication of whether the driver will be enqueuing a scatter gather list with many entries comprised of small buffers, or one contiguous buffer. It also takes into account the number of extra TRBs you need for every TD. This includes No-op TRBs and Link TRBs used to link ring segments together. Some drivers may choose to chain an Event Data TRB on the end of every TD, thus increasing the average number of TRBs per TD. The Linux xHCI driver does not use Event Data TRBs. In theory, if there was an API to allow drivers to state what their bandwidth requirements are, we could set this field accurately. For now, we set it to the same number as the Max ESIT payload. The Average TRB Length should also be set for bulk and control endpoints, but I have no idea how to guess what it should be. 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>
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