- 12 May, 2010 1 commit
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H. Peter Anvin authored
For CPU-feature-specific code that touches performance-critical paths, introduce a static patching version of [boot_]cpu_has(). This is run at alternatives time and is therefore not appropriate for most initialization code, but on the other hand initialization code is generally not performance critical. On gcc 4.5+ this uses the new "asm goto" feature. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Avi Kivity <avi@redhat.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1273135546-29690-2-git-send-email-avi@redhat.com>
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- 10 May, 2010 4 commits
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H. Peter Anvin authored
The proper constraint for a receiving 8-bit variable is "=qm", not "=g" which equals "=rim"; even though the "i" will never match, bugs can and do happen due to the difference between "q" and "r". Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Avi Kivity <avi@redhat.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1273135546-29690-2-git-send-email-avi@redhat.com>
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H. Peter Anvin authored
Unbreak FPU emulation, broken by checkin 86603283: x86: Introduce 'struct fpu' and related API Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Avi Kivity <avi@redhat.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1273135546-29690-3-git-send-email-avi@redhat.com>
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Avi Kivity authored
Currently all fpu state access is through tsk->thread.xstate. Since we wish to generalize fpu access to non-task contexts, wrap the state in a new 'struct fpu' and convert existing access to use an fpu API. Signal frame handlers are not converted to the API since they will remain task context only things. Signed-off-by: Avi Kivity <avi@redhat.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1273135546-29690-3-git-send-email-avi@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Avi Kivity authored
The fpu code currently uses current->thread_info->status & TS_XSAVE as a way to distinguish between XSAVE capable processors and older processors. The decision is not really task specific; instead we use the task status to avoid a global memory reference - the value should be the same across all threads. Eliminate this tie-in into the task structure by using an alternative instruction keyed off the XSAVE cpu feature; this results in shorter and faster code, without introducing a global memory reference. [ hpa: in the future, this probably should use an asm jmp ] Signed-off-by: Avi Kivity <avi@redhat.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1273135546-29690-2-git-send-email-avi@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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- 03 May, 2010 4 commits
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Brian Gerst authored
Any processor that supports simd will have an internal fpu, and the irq13 handler will not be enabled. Signed-off-by: Brian Gerst <brgerst@gmail.com> LKML-Reference: <1269176446-2489-5-git-send-email-brgerst@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Brian Gerst authored
Clean up the kernel exception handling and make it more similar to the other traps. Signed-off-by: Brian Gerst <brgerst@gmail.com> LKML-Reference: <1269176446-2489-4-git-send-email-brgerst@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Brian Gerst authored
The only difference between FPU and SIMD exceptions is where the status bits are read from (cwd/swd vs. mxcsr). This also fixes the discrepency introduced by commit adf77bac, which fixed FPU but not SIMD. Signed-off-by: Brian Gerst <brgerst@gmail.com> LKML-Reference: <1269176446-2489-3-git-send-email-brgerst@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Brian Gerst authored
The cache flush denied error is an erratum on some AMD 486 clones. If an invd instruction is executed in userspace, the processor calls exception 19 (13 hex) instead of #GP (13 decimal). On cpus where XMM is not supported, redirect exception 19 to do_general_protection(). Also, remove die_if_kernel(), since this was the last user. Signed-off-by: Brian Gerst <brgerst@gmail.com> LKML-Reference: <1269176446-2489-2-git-send-email-brgerst@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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- 30 Apr, 2010 31 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds authored
* 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.
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds authored
* 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
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds authored
* 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 ...
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Borislav Petkov authored
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>
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Ralf Baechle authored
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>
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git://git.secretlab.ca/git/linux-2.6Linus Torvalds authored
* '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
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Martyn Welch authored
Somehow I managed to remove a set of rather necessary brackets in commit 29848ac9. Put them back. Signed-off-by: Martyn Welch <martyn.welch@ge.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Andrew Morton authored
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>
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Rodrigo Linfati authored
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>
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Chris Largret authored
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>
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Richard Airlie authored
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>
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H Hartley Sweeten authored
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>
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Eric Lescouet authored
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>
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Pavel Roskin authored
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Stephen Hemminger authored
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>
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Cyrill Gorcunov authored
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>
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Haiyang Zhang authored
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>
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Jonathan Cameron authored
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>
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Sonic Zhang authored
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>
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Wolfram Sang authored
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>
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Wolfram Sang authored
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>
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Dan Carpenter authored
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>
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Jonathan Cameron authored
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>
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Michael Hennerich authored
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>
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Patrice Vilchez authored
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>
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Daniel Mack authored
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>
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Randy Dunlap authored
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>
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Julia Lawall authored
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>
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Anand Gadiyar authored
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>
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Dan Carpenter authored
Smatch complained about this missing spinlock. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Greg Kroah-Hartman authored
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>
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