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2016-01-27tty: Remove chars_in_buffer() line discipline methodPeter Hurley8-68/+13
The chars_in_buffer() line discipline method serves no functional purpose, other than as a (dubious) debugging aid for mostly bit-rotting drivers. Despite being documented as an optional method, every caller is unconditionally executed (although conditionally compiled). Furthermore, direct tty->ldisc access without an ldisc ref is unsafe. Lastly, N_TTY's chars_in_buffer() has warned of removal since 3.12. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27NFC: nci: Remove dead codePeter Hurley1-8/+1
The N_NCI ldisc does not define a flush_buffer() ldisc method, so the check when opening the ldisc is always false. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27serial: 68328: Remove bogus ldisc resetPeter Hurley1-11/+1
As the #warning indicates, the open-coded ldisc reset was always not ok. Not only is this code long dead, but now it would have no effect as the ldisc is destroyed when this driver's close() method returns; remove. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27staging: digi: Replace open-coded tty_wakeup()Peter Hurley2-38/+8
The open-coded tty_wakeup()s are attempts to workaround fixed bugs in the line discipline write_wakeup() method. Replace with tty_wakeup(). Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27tty: Refactor tty_open()Peter Hurley1-53/+67
Extract the driver lookup and reopen-or-initialize logic into helper function tty_open_by_driver(). No functional change. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27tty: Consolidate noctty checks in tty_open()Peter Hurley1-9/+8
Evaluate the conditions which prevent this tty being the controlling terminal in one place, just before setting the controlling terminal. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27tty: Remove __lockfunc annotation from tty lock functionsPeter Hurley3-17/+15
The tty lock/unlock code does not belong in the special lockfunc section which is treated specially by stack backtraces. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27pty: Remove pty_unix98_shutdown()Peter Hurley1-10/+1
The tty core invokes the optional driver shutdown() just before the optional driver remove() (shutdown() has access to the termios and remove() does not). Because pty drivers must prevent the default remove() action, the Unix98 pty drivers define a dummy remove() function. Instead, release the slave index in the remove() method and delete the optional shutdown() method. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27tty: Re-declare tty_driver_remove_tty() file scopePeter Hurley2-3/+1
tty_driver_remove_tty() is only local-scope; declare as static. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27tty: Fix tty_init_termios() declarationPeter Hurley4-29/+9
tty_init_termios() never returns an error; re-declare as void. Remove unnecessary error handling from callers. Remove extern declarations of tty_free_termios() and free_tty_struct() and re-declare in file scope. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27tty: Remove !tty check from free_tty_struct()Peter Hurley1-2/+0
free_tty_struct() is never called with NULL tty; the two call sites would already have faulted on earlier access. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-27tty: Fix ldisc leak in failed tty_init_dev()Peter Hurley4-23/+8
release_tty() leaks the ldisc instance when called directly (rather than when releasing the file descriptor from tty_release()). Since tty_ldisc_release() clears tty->ldisc, releasing the ldisc instance at tty teardown if tty->ldisc is non-null is not in danger of double-releasing the ldisc. Remove deinitialize_tty_struct() now that free_tty_struct() always performs the tty_ldisc_deinit(). Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26staging/speakup: Use tty_ldisc_ref() for paste kworkerPeter Hurley1-1/+4
As the function documentation for tty_ldisc_ref_wait() notes, it is only callable from a tty file_operations routine; otherwise there is no guarantee the ref won't be NULL. The key difference with the VT's paste_selection() is that is an ioctl, where __speakup_paste_selection() is completely async kworker, kicked off from interrupt context. Fixes: 28a821c30688 ("Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt") Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26n_tty: Fix unsafe reference to "other" ldiscPeter Hurley1-5/+2
Although n_tty_check_unthrottle() has a valid ldisc reference (since the tty core gets the ldisc ref in tty_read() before calling the line discipline read() method), it does not have a valid ldisc reference to the "other" pty of a pty pair. Since getting an ldisc reference for tty->link essentially open-codes tty_wakeup(), just replace with the equivalent tty_wakeup(). Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)Peter Hurley1-1/+23
ioctl(TIOCGETD) retrieves the line discipline id directly from the ldisc because the line discipline id (c_line) in termios is untrustworthy; userspace may have set termios via ioctl(TCSETS*) without actually changing the line discipline via ioctl(TIOCSETD). However, directly accessing the current ldisc via tty->ldisc is unsafe; the ldisc ptr dereferenced may be stale if the line discipline is changing via ioctl(TIOCSETD) or hangup. Wait for the line discipline reference (just like read() or write()) to retrieve the "current" line discipline id. Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26tty: Retry failed reopen if tty teardown in-progressPeter Hurley1-4/+8
A small window exists where a tty reopen will observe the tty just prior to imminent teardown (tty->count == 0); in this case, open() returns EIO to userspace. Instead, retry the open after checking for signals and yielding; this interruptible retry loop allows teardown to commence and initialize a new tty on retry. Never retry the BSD master pty reopen; there is no guarantee the pty pair teardown is imminent since the slave file descriptors may remain open indefinitely. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Cc: stable <stable@vger.kernel.org> # 4.4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26tty: Wait interruptibly for tty lock on reopenPeter Hurley3-1/+16
Allow a signal to interrupt the wait for a tty reopen; eg., if the tty has starting final close and is waiting for the device to drain. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Cc: stable <stable@vger.kernel.org> # 4.4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24Linux 4.5-rc1v4.5-rc1Linus Torvalds1-2/+2
2016-01-24Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds130-676/+4923
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for 4.5 plus some 4.4 fixes. The executive summary: - ATH79 platform improvments, use DT bindings for the ATH79 USB PHY. - Avoid useless rebuilds for zboot. - jz4780: Add NEMC, BCH and NAND device tree nodes - Initial support for the MicroChip's DT platform. As all the device drivers are missing this is still of limited use. - Some Loongson3 cleanups. - The unavoidable whitespace polishing. - Reduce clock skew when synchronizing the CPU cycle counters on CPU startup. - Add MIPS R6 fixes. - Lots of cleanups across arch/mips as fallout from KVM. - Lots of minor fixes and changes for IEEE 754-2008 support to the FPU emulator / fp-assist software. - Minor Ralink, BCM47xx and bcm963xx platform support improvments. - Support SMP on BCM63168" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (84 commits) MIPS: zboot: Add support for serial debug using the PROM MIPS: zboot: Avoid useless rebuilds MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function MIPS: bcm963xx: Update bcm_tag field image_sequence MIPS: bcm963xx: Move extended flash address to bcm_tag header file MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure MIPS: bcm63xx: nvram: Use nvram structure definition from header file MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure MAINTAINERS: Add KVM for MIPS entry MIPS: KVM: Add missing newline to kvm_err() MIPS: Move KVM specific opcodes into asm/inst.h MIPS: KVM: Use cacheops.h definitions MIPS: Break down cacheops.h definitions MIPS: Use EXCCODE_ constants with set_except_vector() MIPS: Update trap codes MIPS: Move Cause.ExcCode trap codes to mipsregs.h MIPS: KVM: Make kvm_mips_{init,exit}() static MIPS: KVM: Refactor added offsetof()s MIPS: KVM: Convert EXPORT_SYMBOL to _GPL ...
2016-01-24Merge tag 'platform-drivers-x86-v4.5-2' of ↵Linus Torvalds3-3/+10
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver updates from Darren Hart: "Emergency travel prevented me from completing my final testing on this until today. Nothing here that couldn't wait until RC1 fixes, but I thought it best to get it out sooner rather than later as it does contain a build warning fix. Summary: A build warning fix, MAINTAINERS cleanup, and a new DMI quirk: ideapad-laptop: - Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: - Combine multiple telemetry entries intel_telemetry_debugfs: - Fix unused warnings in telemetry debugfs" * tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: Combine multiple telemetry entries intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs
2016-01-24Merge branch 'next' of ↵Linus Torvalds9-39/+304
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: "The top merge commit was re-generated yesterday because two topic branches were dropped from this pull request in the last minute due to some unaddressed comments. All the other material has been in linux-next for quite a while. Specifics: - Enhance thermal core to handle unexpected device cooling states after fresh boot and system resume. From Zhang Rui and Chen Yu. - Several fixes and cleanups on Rockchip and RCAR thermal drivers. From Caesar Wang and Kuninori Morimoto. - Add Broxton support for Intel processor thermal reporting device driver. From Amy Wiles" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: trip_point_temp_store() calls thermal_zone_device_update() thermal: rcar: rcar_thermal_get_temp() return error if strange temp thermal: rcar: check irq possibility in rcar_thermal_irq_xxx() thermal: rcar: check every rcar_thermal_update_temp() return value thermal: rcar: move rcar_thermal_dt_ids to upside thermal: rockchip: Support the RK3399 SoCs in thermal driver thermal: rockchip: Support the RK3228 SoCs in thermal driver dt-bindings: rockchip-thermal: Support the RK3228/RK3399 SoCs compatible thermal: rockchip: fix a trivial typo Thermal: Enable Broxton SoC thermal reporting device thermal: constify pch_dev_ops structure Thermal: do thermal zone update after a cooling device registered Thermal: handle thermal zone device properly during system sleep Thermal: initialize thermal zone device correctly
2016-01-24Merge tag 'for-linus-4.5-merge-window' of ↵Linus Torvalds2-43/+47
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs Pull 9p updates from Eric Van Hensbergen: "Sorry for the last minute pull request, there's was a change that didn't get pulled into for-next until two weeks ago and I wanted to give it some bake time. Summary: Rework and error handling fixes, primarily in the fscatch and fd transports" * tag 'for-linus-4.5-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: fs/9p: use fscache mutex rather than spinlock 9p: trans_fd, bail out if recv fcall if missing 9p: trans_fd, read rework to use p9_parse_header net/9p: Add device name details on error
2016-01-24Merge branch 'for-linus' of ↵Linus Torvalds11-240/+501
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates from Sage Weil: "The two main changes are aio support in CephFS, and a series that fixes several issues in the authentication key timeout/renewal code. On top of that are a variety of cleanups and minor bug fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: remove outdated comment libceph: kill off ceph_x_ticket_handler::validity libceph: invalidate AUTH in addition to a service ticket libceph: fix authorizer invalidation, take 2 libceph: clear messenger auth_retry flag if we fault libceph: fix ceph_msg_revoke() libceph: use list_for_each_entry_safe ceph: use i_size_{read,write} to get/set i_size ceph: re-send AIO write request when getting -EOLDSNAP error ceph: Asynchronous IO support ceph: Avoid to propagate the invalid page point ceph: fix double page_unlock() in page_mkwrite() rbd: delete an unnecessary check before rbd_dev_destroy() libceph: use list_next_entry instead of list_entry_next ceph: ceph_frag_contains_value can be boolean ceph: remove unused functions in ceph_frag.h
2016-01-24Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds16-52/+238
Pull SMB3 fixes from Steve French: "A collection of CIFS/SMB3 fixes. It includes a couple bug fixes, a few for improved debugging of cifs.ko and some improvements to the way cifs does key generation. I do have some additional bug fixes I expect in the next week or two (to address a problem found by xfstest, and some fixes for SMB3.11 dialect, and a couple patches that just came in yesterday that I am reviewing)" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: cifs_dbg() outputs an uninitialized buffer in cifs_readdir() cifs: fix race between call_async() and reconnect() Prepare for encryption support (first part). Add decryption and encryption key generation. Thanks to Metze for helping with this. cifs: Allow using O_DIRECT with cache=loose cifs: Make echo interval tunable cifs: Check uniqueid for SMB2+ and return -ESTALE if necessary Print IP address of unresponsive server cifs: Ratelimit kernel log messages
2016-01-24ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi listJosh Boyer1-0/+7
Like the Yoga 900 models the Lenovo Yoga 700 does not have a hw rfkill switch, and trying to read the hw rfkill switch through the ideapad module causes it to always reported blocking breaking wifi. This commit adds the Lenovo Yoga 700 to the no_hw_rfkill dmi list, fixing the wifi breakage. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1295272 Tested-by: <dinyar.rabady+spam@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-01-24MAINTAINERS: Combine multiple telemetry entriesSouvik Kumar Chakravarty1-3/+1
This patch combines all the telemetry file entries in MAINTAINERS via wildcard. Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-01-24intel_telemetry_debugfs: Fix unused warnings in telemetry debugfsSouvik Kumar Chakravarty1-0/+2
This patch fixes compile time warnings when CONFIG_PM_SLEEP is undefined. In this case sleep related counters are unused. Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-01-24vmstat: Remove BUG_ON from vmstat_updateChristoph Lameter1-11/+1
If we detect that there is nothing to do just set the flag and do not check if it was already set before. Races really do not matter. If the flag is set by any code then the shepherd will start dealing with the situation and reenable the vmstat workers when necessary again. Since commit 0eb77e988032 ("vmstat: make vmstat_updater deferrable again and shut down on idle") quiet_vmstat might update cpu_stat_off and mark a particular cpu to be handled by vmstat_shepherd. This might trigger a VM_BUG_ON in vmstat_update because the work item might have been sleeping during the idle period and see the cpu_stat_off updated after the wake up. The VM_BUG_ON is therefore misleading and no more appropriate. Moreover it doesn't really suite any protection from real bugs because vmstat_shepherd will simply reschedule the vmstat_work anytime it sees a particular cpu set or vmstat_update would do the same from the worker context directly. Even when the two would race the result wouldn't be incorrect as the counters update is fully idempotent. Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Christoph Lameter <cl@linux.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-24Merge branch '4.4-fixes' into mips-for-linux-nextRalf Baechle7-4/+14
2016-01-24MIPS: zboot: Add support for serial debug using the PROMAlban Bedel3-0/+12
As most platforms implement the PROM serial interface prom_putchar() add a simple bridge to allow re-using this code for zboot. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11811/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: zboot: Avoid useless rebuildsAlban Bedel1-6/+8
Add dummy.o to the targets list, and fill targets automatically from $(vmlinuzobjs) to avoid having to maintain two lists. When building with XZ compression copy ashldi3.c to the build directory to use a different object file for the kernel and zboot. Without this the same object file need to be build with different flags which cause a rebuild at every run. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: linux-mips@linux-mips.org Cc: Alex Smith <alex.smith@imgtec.com> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11810/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIBFlorian Fainelli1-0/+1
Allow BMIPS_GENERIC supported platforms to build GPIO controller drivers. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Dragan Stancevic <dragan.stancevic@gmail.com> Cc: cernekee@gmail.com Cc: jaedon.shin@gmail.com Cc: gregory.0xf0@gmail.com Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/12019/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() functionSimon Arlott2-13/+0
Remove bcm63xx_nvram_get_psi_size() as it now has no users. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: MIPS Mailing List <linux-mips@linux-mips.org> Cc: MTD Maling List <linux-mtd@lists.infradead.org> Patchwork: https://patchwork.linux-mips.org/patch/11836/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: bcm963xx: Update bcm_tag field image_sequenceSimon Arlott1-6/+5
The "dual_image" and "inactive_flag" fields should be merged into a single "image_sequence" field. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: MIPS Mailing List <linux-mips@linux-mips.org> Cc: MTD Maling List <linux-mtd@lists.infradead.org> Patchwork: https://patchwork.linux-mips.org/patch/11834/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: bcm963xx: Move extended flash address to bcm_tag header fileSimon Arlott2-4/+7
The extended flash address needs to be subtracted from bcm_tag flash image offsets. Move this value to the bcm_tag header file. Renamed define name to consistently use bcm963xx for flash layout which should be considered a property of the board and not the SoC (i.e. bcm63xx could theoretically be used on a board without CFE or any flash). Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: MIPS Mailing List <linux-mips@linux-mips.org> Cc: MTD Maling List <linux-mtd@lists.infradead.org> Patchwork: https://patchwork.linux-mips.org/patch/11833/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structureSimon Arlott3-4/+7
Move Broadcom BCM963xx image tag data structure to include/linux/ so that drivers outside of mach-bcm63xx can use it. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: MIPS Mailing List <linux-mips@linux-mips.org> Cc: MTD Maling List <linux-mtd@lists.infradead.org> Patchwork: https://patchwork.linux-mips.org/patch/11832/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: bcm63xx: nvram: Use nvram structure definition from header fileSimon Arlott1-32/+3
Use the common definition of the nvram structure from the header file include/linux/bcm963xx_nvram.h instead of maintaining a separate copy. Read the version 5 size of nvram data from memory and then call the new checksum verification function from the header file. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: MIPS Mailing List <linux-mips@linux-mips.org> Cc: MTD Maling List <linux-mtd@lists.infradead.org> Patchwork: https://patchwork.linux-mips.org/patch/11831/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structureSimon Arlott2-0/+113
Broadcom BCM963xx boards have multiple nvram variants across different SoCs with additional checksum fields added whenever the size of the nvram was extended. Add this structure as a header file so that multiple drivers can use it. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: MIPS Mailing List <linux-mips@linux-mips.org> Cc: MTD Maling List <linux-mtd@lists.infradead.org> Patchwork: https://patchwork.linux-mips.org/patch/11830/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-23Merge tag 'for-linus' of ↵Linus Torvalds174-4669/+7110
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "Initial roundup of 4.5 merge window patches - Remove usage of ib_query_device and instead store attributes in ib_device struct - Move iopoll out of block and into lib, rename to irqpoll, and use in several places in the rdma stack as our new completion queue polling library mechanism. Update the other block drivers that already used iopoll to use the new mechanism too. - Replace the per-entry GID table locks with a single GID table lock - IPoIB multicast cleanup - Cleanups to the IB MR facility - Add support for 64bit extended IB counters - Fix for netlink oops while parsing RDMA nl messages - RoCEv2 support for the core IB code - mlx4 RoCEv2 support - mlx5 RoCEv2 support - Cross Channel support for mlx5 - Timestamp support for mlx5 - Atomic support for mlx5 - Raw QP support for mlx5 - MAINTAINERS update for mlx4/mlx5 - Misc ocrdma, qib, nes, usNIC, cxgb3, cxgb4, mlx4, mlx5 updates - Add support for remote invalidate to the iSER driver (pushed through the RDMA tree due to dependencies, acknowledged by nab) - Update to NFSoRDMA (pushed through the RDMA tree due to dependencies, acknowledged by Bruce)" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (169 commits) IB/mlx5: Unify CQ create flags check IB/mlx5: Expose Raw Packet QP to user space consumers {IB, net}/mlx5: Move the modify QP operation table to mlx5_ib IB/mlx5: Support setting Ethernet priority for Raw Packet QPs IB/mlx5: Add Raw Packet QP query functionality IB/mlx5: Add create and destroy functionality for Raw Packet QP IB/mlx5: Refactor mlx5_ib_qp to accommodate other QP types IB/mlx5: Allocate a Transport Domain for each ucontext net/mlx5_core: Warn on unsupported events of QP/RQ/SQ net/mlx5_core: Add RQ and SQ event handling net/mlx5_core: Export transport objects IB/mlx5: Expose CQE version to user-space IB/mlx5: Add CQE version 1 support to user QPs and SRQs IB/mlx5: Fix data validation in mlx5_ib_alloc_ucontext IB/sa: Fix netlink local service GFP crash IB/srpt: Remove redundant wc array IB/qib: Improve ipoib UD performance IB/mlx4: Advertise RoCE v2 support IB/mlx4: Create and use another QP1 for RoCEv2 IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers ...
2016-01-24MAINTAINERS: Add KVM for MIPS entryJames Hogan1-0/+8
I've pretty much been maintaining KVM for MIPS for a while now. Lets make it more official (and make sure I get Cc'd on relevant patches). Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11898/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: KVM: Add missing newline to kvm_err()James Hogan1-1/+1
Add missing newline to end of kvm_err string when guest PMAP couldn't be allocated. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11896/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: Move KVM specific opcodes into asm/inst.hJames Hogan4-28/+5
The header arch/mips/kvm/opcode.h defines a few extra opcodes which aren't in arch/mips/include/uapi/asm/inst.h. There's nothing KVM specific about them, so lets move them into inst.h where they belong and delete the header. Note that mfmcz_op is renamed to mfmc0_op to match the instruction set manual, and wait_op was already added to inst.h in commit b0a3eae2b943 ("MIPS: inst.h: define COP0 wait op"), merged in v3.16-rc1. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11895/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: KVM: Use cacheops.h definitionsJames Hogan1-22/+8
Drop the custom cache operation code definitions used by KVM for emulating guest CACHE instructions, and switch to use the existing definitions in <asm/cacheops.h>. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11893/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: Break down cacheops.h definitionsJames Hogan1-42/+64
Most of the cache op codes defined in cacheops.h are split into a 2-bit cache identifier, and a 3-bit cache op code which does largely the same thing semantically regardless of the cache identifier. To allow the use of these definitions by KVM for decoding cache ops, break the definitions down into parts where it makes sense to do so, and add masks for the Cache and Op field within the cache op. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11892/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: Use EXCCODE_ constants with set_except_vector()James Hogan2-30/+30
The first argument to set_except_vector is the ExcCode, which we now have definitions for. Lets make use of them. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11894/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: Update trap codesJames Hogan1-2/+10
Add a few missing trap codes. [ralf@linux-mips.org: Drop removal of exception codes. I don't care what the incomplete architecture spec says; it can't change existing hardware and VCEI is supported indeed.] Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11890/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: Move Cause.ExcCode trap codes to mipsregs.hJames Hogan5-83/+80
Move the Cause.ExcCode trap code definitions from kvm_host.h to mipsregs.h, since they describe architectural bits rather than KVM specific constants, and change the prefix from T_ to EXCCODE_. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11891/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: KVM: Make kvm_mips_{init,exit}() staticJames Hogan1-2/+2
The module init and exit functions have no need to be global, so make them static. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11889/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: KVM: Refactor added offsetof()sJames Hogan1-7/+3
When calculating the offsets into the commpage for dynamically translated mtc0/mfc0 guest instructions, multiple offsetof()s are added together to find the offset of the specific register in the mips_coproc, within the commpage. Simplify each of these cases to a single offsetof() to find the offset of the specific register within the commpage. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11888/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: KVM: Convert EXPORT_SYMBOL to _GPLJames Hogan2-19/+19
Export symbols only to GPL modules to match other KVM symbols in virt/kvm/ and arch/*/kvm/. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11887/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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