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2014-08-16intel_ips: Make ips_mcp_limits variables staticMathias Krause
These variables don't need to be visible outside of this compilation unit, make them static. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16thinkpad_acpi: Mark volume_alsa_control_{vol,mute} as __initdataMathias Krause
Mark volume_alsa_control_vol and volume_alsa_control_mute as __initdata, as snd_ctl_new1() will copy the relevant parts, so there is no need to keep the master copies around after initialization. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16fujitsu-laptop: Mark fujitsu_dmi_table[] DMI table as __initconstMathias Krause
The DMI table is only ever used during initialization. Mark it as __initconst so its memory can be released afterwards -- roughly 1.5 kB. In turn, the callback functions can be marked with __init, too. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16hp-wmi: Add missing __init annotations to initialization codeMathias Krause
These functions are only called from other initialization routines, so can be marked __init, too. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16hp_accel: Constify ACPI and DMI tablesMathias Krause
Constify the lis3lv02d_device_ids[] ACPI and the lis3lv02d_dmi_ids[] DMI tables. There's no need to have them writeable during runtime. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16fujitsu-tablet: Mark DMI callbacks as __init codeMathias Krause
The DMI table is already marked as __initconst, so can be the callback functions as they're only used in that context. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Robert Gerlach <khnz@gmx.de> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16dell-laptop: Mark dell_quirks[] DMI table as __initconstMathias Krause
The dell_quirks[] DMI table is only ever used during initialization. Mark it as __initconst so its memory can be released afterwards -- roughly 5.7 kB. In turn, the callback function can be marked with __init, too. Also the touchpad_led_init() function can be marked __init as it's only referenced from dell_init() -- an __init function. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16eeepc-wmi: Constify asus_quirks[] DMI tableMathias Krause
Constify the asus_quirks[] DMI table. There's no need to have it writeable during runtime. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16acer-wmi: Mark init data and code as suchMathias Krause
Quite a lot of code and data of acer-wmi.c is only ever used during initialization. Mark those accordingly -- and constify, where appropriate -- so the memory can be released afterwards. All in all those changes move ~10 kB of code and data to the .init sections, marking them for release after initialization has finished. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: "Lee, Chun-Yi" <jlee@suse.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16asus-nb-wmi: Constify asus_quirks[] DMI tableMathias Krause
Constify the asus_quirks[] DMI table. There's no need to have it writeable during runtime. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16alienware-wmi: Mark DMI table as __initconstMathias Krause
The DMI table is only ever used during initialization. Mark it as __initconst so its memory can be released appropriately. In turn, the callback function can be marked with __init, too. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16acer-wmi: Hide acer_{suspend,resume} for !CONFIG_PM_SLEEPMathias Krause
Encapsulate acer_suspend() and acer_resume with #ifdef CONFIG_PM_SLEEP to get rid of the following warnings: ../acer-wmi.c:2046:12: warning: ‘acer_suspend’ defined but not used [-Wunused-function] ../acer-wmi.c:2068:12: warning: ‘acer_resume’ defined but not used [-Wunused-function] Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: "Lee, Chun-Yi" <jlee@suse.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16acer-wmi: Mark acer_wmi_keymap[] as __initconstMathias Krause
sparse_keymap_setup() will make a copy of the keymap, so we can release the master copy after initialization. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: "Lee, Chun-Yi" <jlee@suse.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16MAINTAINERS: Update git URL for x86 platform driversMathias Krause
The repo on kernel.org is no longer available but has a replacement at cavan.codon.org.uk. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16WMI: Remove unnecessary null testHimangi Saraogi
This patch removes the null test on block. block is initialized at the beginning of the function to &wblock->gblock. Since wblock is dereferenced prior to the null test, wblock must be a valid pointer, and &wblock->gblock cannot be null. The following Coccinelle script is used for detecting the change: @r@ expression e,f; identifier g,y; statement S1,S2; @@ *e = &f->g <+... f->y ...+> *if (e != NULL || ...) S1 else S2 Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16drivers/platform/x86/thinkpad_acpi.c: don't test unsigned int for negativityAndrey Utkin
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80231 Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16asus-nb-wmi: Add wapf4 quirk for the X550CLHans de Goede
As reported here: https://bugs.launchpad.net/bugs/1277959 the X550CL needs wapf=4 too. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16asus-nb-wmi: Add ASUSTeK COMPUTER INC. X200CAAceLan Kao
BIOS won't light on the wifi-led after S3, so asus-wmi driver needs to control the wifi and wifi-led status. But, it'll lead to bt status error if asus-wmi driver controls bt as well. So, for X200CA, asus-wmi driver controls wifi status only and have to set wapf to 1. Signed-off-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16asus-wmi: control wlan-led if wapf > 0AceLan Kao
Wifi will be controlled by asus-wmi driver when wapf > 0 So, controls the wifi-led when wapf > 0 Signed-off-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16asus-wmi: backlight_init: Stop treating -ENODEV as if its not an errorHans de Goede
When bl_power support got added to asus-wmi, the error handling for it was written to ignore -ENODEV, to avoid not registering a backlight interface for models which have no bl_power control, but do have brightness control. At the same time the error handling for brightness_max was modified to do the same, this is wrong, when there is no brightness_max asus-wmi should not register a backlight interface. Note the caller of asus_wmi_backlight_init already special cases -ENODEV, and will not cause the wmi driver regristration to fail because of a -ENODEV return from asus_wmi_backlight_init. https://bugzilla.redhat.com/show_bug.cgi?id=1097436 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16asus-wmi: Disable acpi-video backlight on desktop machinesHans de Goede
Some Asus motherboards for desktop PC-s export an acpi-video interface advertising backlight support. Test the dmi chassis-type and tell acpi-video to not register a backlight interface on desktops. https://bugzilla.redhat.com/show_bug.cgi?id=1097436 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16ideapad-laptop: Change Lenovo Yoga 2 series rfkill handlingHans de Goede
It seems that the same problems which lead to adding an rfkill blacklist and putting the Lenovo Yoga 2 11 on it are also present on the Lenovo Yoga 2 13 and Lenovo Yoga 2 Pro too: https://bugzilla.redhat.com/show_bug.cgi?id=1021036 https://forums.lenovo.com/t5/Linux-Discussion/Yoga-2-13-not-Pro-Linux-Warning/m-p/1517612 Testing has shown that the firmware rfkill settings are persistent over reboots. So blacklisting the driver is not good enough, if the wifi is blocked at the firmware level the wifi needs to be explictly unblocked through the ideapad-laptop interface. And at least on the Lenovo Yoga 2 13 the VPCCMD_RF register which on devices with hardware kill switch reports the hardware switch state, needs to be explictly set to 1 (radio enabled / not blocked). So this patch does 3 things to get proper rfkill handling on these models: 1) Instead of blacklisting the rfkill functionality, which means that people with a firmware blocked wifi get stuck in that situation, ignore the value reported by the not present hardware rfkill switch, as this is what is causing ideapad-laptop to wrongly report all radios as hardware blocks. But do register the rfkill interfaces so that the user can soft [un]block them. 2) On models without a hardware rfkill switch, explictly set VPCCMD_RF to 1 3) Drop the " 11" postfix from the dmi match string, as the entire Yoga 2 series is affected. Yoga 2 11: Reported-and-tested-by: Vincent Gerris <vgerris@gmail.com> Yoga 2 13: Tested-by: madls05 <http://ubuntuforums.org/showthread.php?t=2215044> Yoga 2 Pro: Reported-and-tested-by: Peter F. Patel-Schneider <pfpschneider@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16thinkpad_acpi: Update mapping for F12 hotkey on *40 models to KEY_FILEHans de Goede
The new keyboard found on the *40 models is also being sold as a standalone keyboard (with trackpoint): http://shop.lenovo.com/us/en/itemdetails/0B47189/460/60AC6A0372B14F5BA7B12F1FF88E33C7 This uses a standard HUT code for the F12 key with the 6 square boxes on it, which gets mapped to KEY_FILE by the kernel. Change the mapping done of identical laptop key done by thinkpad_acpi to also send KEY_FILE for consistency. Cc: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16eeepc-laptop: rename _set and _get arguments in macroPaul Bolle
The _set and _get arguments to the EEEPC_CREATE_SENSOR_ATTR() macro are confusingly named: _set should be _get and vice versa. Rename these arguments. Drop the trailing semicolon from that macro, while we're at it. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16fujitsu-laptop: Clear build warningsJean Delvare
When CONFIG_FUJITSU_LAPTOP_DEBUG is disabled and W=1, the fujitsu-laptop driver builds with the following warnings: drivers/platform/x86/fujitsu-laptop.c: In function "bl_update_status": drivers/platform/x86/fujitsu-laptop.c:409:8: warning: suggest braces around empty body in an "if" statement [-Wempty-body] ret); ^ drivers/platform/x86/fujitsu-laptop.c:418:8: warning: suggest braces around empty body in an "if" statement [-Wempty-body] ret); ^ Rework the debug printk helper macro to get rid of these. I verified that this change has no effect on the generated binary, both in the debug and non-debug case. Signed-off-by: Jean Delvare <jdelvare@suse.de> Acked-by: Jonathan Woithe <jwoithe@just42.net> Cc: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16platform/x86/toshiba-apci.c possible bad if test?Nick
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16sony-laptop: fix doesn't work lid resume settings on Vaio Promog422
Signed-off-by: mog422 <admin@mog422.net> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16WAPF 4 for ASUSTeK COMPUTER INC. X75VBP WLAN ON.poma
The 'asus-nb-wmi' WAPF parameter must be set to 4, so the internal Wireless LAN device is operational. Signed-off-by: poma <pomidorabelisima@gmail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-16of/irq: Fix lookup to use 'interrupts-extended' property firstFlorian Fainelli
In case the Device Tree blob passed by the boot agent supplies both an 'interrupts-extended' and an 'interrupts' property in order to allow for older kernels to be usable, prefer the new-style 'interrupts-extended' property which conveys a lot more information. This allows us to have bootloaders willingly maintaining backwards compatibility with older kernels without entirely deprecating the 'interrupts' property. Update the bindings documentation to describe a situation where both the 'interrupts-extended' and the 'interrupts' property are present, and which one takes precedence over the other. Cc: stable@vger.kernel.org # 3.13+ Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-08-16Enabling OF selftest to run without machine's devicetreeGaurav Minocha
If there is no devicetree present, this patch adds the selftest data as a live devicetree. It also removes the same after the testcase execution is complete. Tested with and without machine's devicetree. Signed-off-by: Gaurav Minocha <gaurav.minocha.os@gmail.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-08-16of: Allow mem_reserve of memory with a base address of zeroAl Cooper
__reserved_mem_reserve_reg() won't reserve memory if the base address is zero. This change removes the check for a base address of zero and allows it to be reserved. Allowing the first 4K of memory to be reserved will help solve a problem on some ARM systems where the the first 16K of memory is unused and becomes allocable memory. This will prevent this memory from being used for DMA by drivers like the USB OHCI driver which consider a physical address of zero to be illegal. Cc: stable@vger.kernel.org # 3.15+ Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-08-16ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & coTakashi Iwai
ALC269 & co have many vendor-specific setups with COEF verbs. However, some verbs seem specific to some codec versions and they result in the codec stalling. Typically, such a case can be avoided by checking the return value from reading a COEF. If the return value is -1, it implies that the COEF is invalid, thus it shouldn't be written. This patch adds the invalid COEF checks in appropriate places accessing ALC269 and its variants. The patch actually fixes the resume problem on Acer AO725 laptop. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=52181 Tested-by: Francesco Muzio <muziofg@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-16Merge tag 'asoc-v3.17-rc1' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v3.17 Nothing too exciting here, a bunch of driver fixes that came along since the initial pull request but none that really stand our and a warning fix in the core.
2014-08-15[CIFS] Workaround MacOS server problem with SMB2.1 writeSteve French
response Writes fail to Mac servers with SMB2.1 mounts (works with cifs though) due to them sending an incorrect RFC1001 length for the SMB2.1 Write response. Workaround this problem. MacOS server sends a write response with 3 bytes of pad beyond the end of the SMB itself. The RFC1001 length is 3 bytes more than the sum of the SMB2.1 header length + the write reponse. Incorporate feedback from Jeff and JRA to allow servers to send a tcp frame that is even more than three bytes too long (ie much longer than the SMB2/SMB3 request that it contains) but we do log it once now. In the earlier version of the patch I had limited how far off the length field could be before we fail the request. Signed-off-by: Steve French <smfrench@gmail.com>
2014-08-15cifs: handle lease F_UNLCK requests properlyJeff Layton
Currently any F_UNLCK request for a lease just gets back -EAGAIN. Allow them to go immediately to generic_setlease instead. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Steve French <smfrench@gmail.com>
2014-08-15Cleanup sparse file support by creating worker function for itSteve French
Simply move code to new function (for clarity). Function sets or clears the sparse file attribute flag. Signed-off-by: Steve French <smfrench@gmail.com> Reviewed-by: David Disseldorp <ddiss@samba.org>
2014-08-15Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull more SCSI changes from James Bottomley: "This is a small set of updates which missed the first pull. It's more msix updates, some iscsi and qla4xxx fixes, we also have some string null termination fixes a return value fix and a couple of pm8001 firmware fixes. Just a note, we do have a couple of bug fixes coming under separate cover, but they don't have to be part of the merge window" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: iscsi class: Fix freeing of skb in get host error path scsi: fix u14-34f printk format warnings pm8001: fix pm8001_store_update_fw pm8001: Fix erratic calculation in update_flash pm8001: Update MAINTAINERS list libiscsi: return new error code when nop times out iscsi class: fix get_host_stats return code when not supported iscsi class: fix get_host_stats error handling qla4xxx: fix get_host_stats error propagation qla4xxx: check the return value of dma_alloc_coherent() scsi: qla4xxx: ql4_mbx.c: Cleaning up missing null-terminate in conjunction with strncpy scsi: qla4xxx: ql4_os.c: Cleaning up missing null-terminate in conjunction with strncpy qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix() pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()
2014-08-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input layer fixes from Dmitry Torokhov: "Second round of updates for the input subsystem. Mostly small fixups to the code merged in the first round (atmel_mxt_ts, wacom) but also a smallish patch to xbox driver to support Xbox One controllers and a patch to better handle Synaptics profile sensors found in Cr-48 Chromebooks that should not affect any other devices" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: edt-ft5x06 - remove superfluous assignment Input: xpad - add support for Xbox One controllers Input: atmel_mxt_ts - fix a few issues reported by Coverity Input: atmel_mxt_ts - split config update a bit Input: atmel_mxt_ts - simplify mxt_initialize a bit Input: joystick - use get_cycles on ARMv8 Input: wacom - fix compiler warning if !CONFIG_PM Input: cap1106 - allow changing key mapping from userspace Input: synaptics - use firmware data for Cr-48 Input: synaptics - properly initialize slots for semi-MT Input: MT - make slot cleanup callable outside mt_sync_frame() Input: atmel_mxt_ts - mXT224 DMA quirk was fixed in firmware v2.0.AA
2014-08-15Merge tag 'sound-fix-3.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Here is the additional fix patches that have been queued up since the previous pull request. A few HD-audio fixes, a USB-audio quirk addition, and a couple of trivial cleanup for the legacy OSS codes" * tag 'sound-fix-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Set TLV_DB_SCALE_MUTE bit for cx5051 vmaster ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed ALSA: hda - Fix pop noises on reboot for Dell XPS 13 9333 ALSA: hda - Set internal mic as default input source on Dell XPS 13 9333 ALSA: usb-audio: fix BOSS ME-25 MIDI regression ALSA: hda - Fix parsing of CMI8888 codec ALSA: hda - Fix probing and stuttering on CMI8888 HD-audio controller ALSA: hda/realtek - Fixed ALC286/ALC288 recording delay for Headset Mic sound: oss: Remove typedefs wanc_info and wavnc_port_info sound: oss: uart401: Remove typedef uart401_devc
2014-08-15Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes (mostly nouveau) from Dave Airlie: "One doc buidling fixes for a file that moved, along with a bunch of nouveau fixes, one a build problem on ARM" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/doc: Refer to proper source file drm/nouveau/platform: fix compilation error drm/nouveau/gk20a: add LTC device drm/nouveau: warn if we fail to re-pin fb on resume drm/nouveau/nvif: fix dac load detect method definition drm/gf100-/gr: fix -ENOSPC detection when allocating zbc table entries drm/nouveau/nvif: return null pointers on failure, in addition to ret != 0 drm/nouveau/ltc: fix tag base address getting truncated if above 4GiB drm/nvc0-/fb/ram: fix use of non-existant ram if partitions aren't uniform drm/nouveau/bar: behave better if ioremap failed drm/nouveau/kms: nouveau_fbcon_accel_fini can be static drm/nouveau: kill unused variable warning if !__OS_HAS_AGP drm/nouveau/nvif: fix a number of notify thinkos
2014-08-15Merge branch 'linux_next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac Pull EDAC updates from Mauro Carvalho Chehab. * 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac: sb_edac: add support for Haswell based systems sb_edac: Fix mix tab/spaces alignments edac: add DDR4 and RDDR4 sb_edac: remove bogus assumption on mc ordering sb_edac: make minimal use of channel_mask sb_edac: fix socket detection on Ivy Bridge controllers sb_edac: update Kconfig description sb_edac: search devices using product id sb_edac: make RIR limit retrieval per model sb_edac: make node id retrieval per model sb_edac: make memory type detection per memory controller
2014-08-15tools/power turbostat: tweak whitespace in output formatLen Brown
turbostat -S output was off by 1 space before this patch. Signed-off-by: Len Brown <len.brown@intel.com>
2014-08-15intel_idle: Broadwell supportLen Brown
Broadwell (BDW) is similar to Haswell (HSW), the preceding processor generation. Currently, the only difference in their C-state tables is that PC3 max exit latency is 33usec on HSW and 40usec on BDW. Signed-off-by: Len Brown <len.brown@intel.com>
2014-08-15intel_idle: Disable Baytrail Core and Module C6 auto-demotionLen Brown
Power efficiency improves on Baytrail (Intel Atom Processor E3000) when Linux disables C6 auto-demotion. Based on work by Srinidhi Kasagar <srinidhi.kasagar@intel.com>. Signed-off-by: Len Brown <len.brown@intel.com> Cc: x86@kernel.org
2014-08-15x86_32, entry: Clean up sysenter_badsys declarationStefan Bader
commit 554086d85e "x86_32, entry: Do syscall exit work on badsys (CVE-2014-4508)" introduced a new jump label (sysenter_badsys) but somehow the END statements seem to have gone wrong (at least it feels that way to me). This does not seem to be a fatal problem, but just for the sake of symmetry, change the second syscall_badsys to sysenter_badsys. Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Link: http://lkml.kernel.org/r/1408093066-31021-1-git-send-email-stefan.bader@canonical.com Acked-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-08-15[SCSI] save command pool address of Scsi_HostJuergen Gross
If a scsi host driver specifies .cmd_len in it's scsi_host_template, a driver's private command pool is needed. scsi_find_host_cmd_pool() will locate it, but scsi_alloc_host_cmd_pool() isn't saving the pool address in the host template. This will result in an access error when the host is removed. Avoid the problem by saving the address of a new allocated command pool where it is expected. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Fixes: 89d9a567952baec13e26ada3e438f1b642d66b6e Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-08-15[SCSI] fix qemu boot hang problemGuenter Roeck
The latest kernel fails to boot qemu arm images when using scsi for disk access. Boot gets stuck after the following messages. brd: module loaded sym53c8xx 0000:00:0c.0: enabling device (0100 -> 0103) sym0: <895a> rev 0x0 at pci 0000:00:0c.0 irq 93 sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking sym0: SCSI BUS has been reset. scsi host0: sym-2.2.3 Bisect points to commit 71e75c97f97a ("scsi: convert device_busy to atomic_t"). Code inspection shows the following suspicious change in scsi_request_fn. out_delay: - if (sdev->device_busy == 0 && !scsi_device_blocked(sdev)) + if (atomic_read(&sdev->device_busy) && !scsi_device_blocked(sdev)) blk_delay_queue(q, SCSI_QUEUE_DELAY); } 'sdev->device_busy == 0' was replaced with 'atomic_read(&sdev->device_busy)', meaning the logic was reversed. Changing this expression to '!atomic_read(&sdev->device_busy)' fixes the problem. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Hannes Reinecke <hare@suse.de> Acked-by: Jens Axboe <axboe@fb.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Fixes: 71e75c97f97a Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-08-16module: Clean up ro/nx after early module load failuresAndy Lutomirski
The commit 4982223e51e8 module: set nx before marking module MODULE_STATE_COMING. introduced a regression: if a module fails to parse its arguments or if mod_sysfs_setup fails, then the module's memory will be freed while still read-only. Anything that reuses that memory will crash as soon as it tries to write to it. Cc: stable@vger.kernel.org # v3.16 Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-15blk-mq: get rid of unused BLK_MQ_F_SHOULD_SORT flagJens Axboe
We used to use this for determining whether to sort the dispatch list, but it's unused now. Signed-off-by: Jens Axboe <axboe@fb.com>
2014-08-15blk-mq: fix WARNING "percpu_ref_kill() called more than once!"Ming Lei
Before doing queue release, the queue has been freezed already by blk_cleanup_queue(), so needn't to freeze queue for deleting tag set. This patch fixes the WARNING of "percpu_ref_kill() called more than once!" which is triggered during unloading block driver. Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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