- 09 Nov, 2015 13 commits
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Christian Zander authored
commit ba2374fd upstream. In preparation for the installation of a large page, any small page tables that may still exist in the target IOV address range are removed. However, if a scatter/gather list entry is large enough to fit more than one large page, the address space for any subsequent large pages is not cleared of conflicting small page tables. This can cause legitimate mapping requests to fail with errors of the form below, potentially followed by a series of IOMMU faults: ERROR: DMA PTE for vPFN 0xfde00 already set (to 7f83a4003 not 7e9e00083) In this example, a 4MiB scatter/gather list entry resulted in the successful installation of a large page @ vPFN 0xfdc00, followed by a failed attempt to install another large page @ vPFN 0xfde00, due to the presence of a pointer to a small page table @ 0x7f83a4000. To address this problem, compute the number of large pages that fit into a given scatter/gather list entry, and use it to derive the last vPFN covered by the large page(s). Signed-off-by:
Christian Zander <christian@nervanasys.com> Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Luca Coelho authored
commit f08f6258 upstream. Add 3 new subdevice IDs for the 0x095A device ID and 2 for the 0x095B device ID. Reported-by:
Jeremy <jeremy.bomkamp@gmail.com> Signed-off-by:
Luca Coelho <luciano.coelho@intel.com> Signed-off-by:
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Andrei Otcheretianski authored
commit dbf73d4a upstream. FW dump may be triggered when running init ucode, for example due to a sysassert. In this case fw_dump_wk may run after mvm is freed, resulting in a kernel panic. Fix it by flushing the work. Fixes: 01b988a708af ("iwlwifi: mvm: allow to collect debug data when restart is disabled") Signed-off-by:
Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by:
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Arik Nemtsov authored
commit 1a3fe0b2 upstream. During the CT-kill exit flow, the card is powered up and partially initialized to check if the temperature is already low enough. Unfortunately the init bails early because the CT-kill flag is set. Make the code bail early only for HW RF-kill, as was intended by the author. CT-kill is self-imposed and is not really RF-kill. Fixes: 31b8b343 ("iwlwifi: fix RFkill while calibrating") Signed-off-by:
Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by:
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Johannes Berg authored
commit 2cf5eb3a upstream. The code to send the RX PN data (for each TID) to the firmware has a devastating bug: it overwrites the data for TID 0 with all the TID data, leaving the remaining TIDs zeroed. This will allow replays to actually be accepted by the firmware, which could allow waking up the system. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Johannes Berg authored
commit 6645d5e4 upstream. When going into/coming out of D3, the TX PN must be programmed into and restored from the firmware respectively. The restore was broken due to my previous commit to move PN assignment into the driver. Sending the PN to the firmware still worked since we now use the counter that's shared with mac80211, but accessing it through the mac80211 API makes no sense now. Fix this by reading/writing the counter directly. This actually simplifies the code since we don't need to round-trip through the key_seq structure. Fixes: ca8c0f4b ("iwlwifi: mvm: move TX PN assignment for CCMP to the driver") Reported-by:
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Avraham Stern authored
commit e9cb0327 upstream. The csa_countdown flag was not cleared when the AP is stopped. As a result, if the AP was stopped after csa_countdown had started, all the folowing channel switch commands would fail. Fix that by clearing the csa_countdown flag when the AP is stopped. Signed-off-by:
Avraham Stern <avraham.stern@intel.com> Signed-off-by:
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Larry Finger authored
commit 54328e64 upstream. In commit 1277fa2a ("rtlwifi: Remove the clear interrupt routine from all drivers"), the code that cleared all interrupt enable bits before setting them was removed for all PCI drivers. This fixed an issue that caused TX to be blocked for 3-5 seconds. On some RTL8821AE units, this change causes soft lockups to occur on boot. For that reason, the portion of the earlier commit that applied to rtl8821ae is reverted. Kernels 4.1 and newer are affected. See http://marc.info/?l=linux-wireless&m=144373370103285&w=2 and https://bugzilla.opensuse.org/show_bug.cgi?id=944978 for two cases where this regression affected user systems. Note that this bug does not appear on any of the developer's setups. For those users whose systems are affected by the TX blockage, but do not lock up on boot, a module parameter is added to disable the interrupt clear Fixes: 1277fa2a ("rtlwifi: Remove the clear interrupt routine from all drivers") Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
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Johannes Berg authored
commit b5a48134 upstream. The MODULE_FIRMWARE() for 3160 should be using the 7260 version as it's done in the device configuration struct instead of referencing IWL3160_UCODE_API_OK which doesn't even exist. Reported-by:
Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by:
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Johannes Berg authored
commit 5bd16687 upstream. The code to send the RX PN data (for each TID) to the firmware has a devastating bug: it overwrites the data for TID 0 with all the TID data, leaving the remaining TIDs zeroed. This will allow replays to actually be accepted by the firmware, which could allow waking up the system. Signed-off-by:
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Chaotian Jing authored
commit 08b137d9 upstream. Suppose that we got a data crc error, and it triggers the mmc_reset. mmc_reset will call mmc_send_status to see if HW reset was supported. before issue CMD13, it will do retune, and if EMMC was in HS400 mode, it will reduce frequency to 52Mhz firstly, then results in card init was doing at 52Mhz. The mmc_send_status was originally only done for mmc_test, should drop it. And, rename the "eMMC hardware reset" to "Reset test", as we would also be able to use the test for SD-cards. Signed-off-by:
Chaotian Jing <chaotian.jing@mediatek.com> Suggested-by:
Adrian Hunter <adrian.hunter@intel.com> Fixes: bd11e8bd ("mmc: core: Flag re-tuning is needed on CRC errors") Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
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Felix Fietkau authored
commit 029cd037 upstream. ath9k inserts padding between the 802.11 header and the data area (to align it). Since it didn't declare this extra required headroom, this led to some nasty issues like randomly dropped packets in some setups. Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Mohammed Shafi Shajakhan authored
commit 4633dfc3 upstream. Commit 30686bf7 ("mac80211: convert HW flags to unsigned long bitmap") accidentally removed the newline delimiter from the hwflags debugfs file. Fix this by adding back the newline between the HW flags. Signed-off-by:
Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> [fix commit log] Signed-off-by:
Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by:
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- 27 Oct, 2015 27 commits
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Greg Kroah-Hartman authored
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Steve Wise authored
commit c91aed98 upstream. The server rdma_read_chunk_lcl() and rdma_read_chunk_frmr() functions were not taking into account the initial page_offset when determining the rdma read length. This resulted in a read who's starting address and length exceeded the base/bounds of the frmr. The server gets an async error from the rdma device and kills the connection, and the client then reconnects and resends. This repeats indefinitely, and the application hangs. Most work loads don't tickle this bug apparently, but one test hit it every time: building the linux kernel on a 16 core node with 'make -j 16 O=/mnt/0' where /mnt/0 is a ramdisk mounted via NFSRDMA. This bug seems to only be tripped with devices having small fastreg page list depths. I didn't see it with mlx4, for instance. Fixes: 0bf48289 ('svcrdma: refactor marshalling logic') Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Tested-by:
Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
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Steve Capper authored
commit 1a541b4e upstream. 6910fa16 ("arm64: enable PTE type bit in the mask for pte_modify") fixes a problem whereby a large block of PROT_NONE mapped memory is incorrectly mapped as block descriptors when mprotect is called. Unfortunately, a subtle bug was introduced by this fix to the THP logic. If one mmaps a large block of memory, then faults it such that it is collapsed into THPs; resulting calls to mprotect on this area of memory will lead to incorrect table descriptors being written instead of block descriptors. This is because pmd_modify calls pte_modify which is now allowed to modify the type of the page table entry. This patch reverts commit 6910fa16, and fixes the problem it was trying to address by adjusting PAGE_NONE to represent a table entry. Thus no change in pte type is required when moving from PROT_NONE to a different protection. Fixes: 6910fa16 ("arm64: enable PTE type bit in the mask for pte_modify") Cc: <stable@vger.kernel.org> # 4.0+ Cc: Feng Kan <fkan@apm.com> Reported-by:
Ganapatrao Kulkarni <Ganapatrao.Kulkarni@caviumnetworks.com> Tested-by:
Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com> Reviewed-by:
Catalin Marinas <catalin.marinas@arm.com> [SteveC: backported 1a541b4e to 4.1 and 4.2 stable. Just one minor fix to second part to allow patch to apply cleanly, no logic changed.] Signed-off-by:
Steve Capper <steve.capper@linaro.org> Signed-off-by:
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Uwe Kleine-König authored
commit 9911a2d5 upstream. The code in pinctrl-imx.c only works correctly if in the imx_pinctrl_soc_info passed to imx_pinctrl_probe we have: info->pins[i].number = i conf_reg(info->pins[i]) = 4 * i (which conf_reg(pin) being the offset of the pin's configuration register). When the imx25 specific part was introduced in b4a87c9b ("pinctrl: pinctrl-imx: add imx25 pinctrl driver") we had: info->pins[i].number = i + 1 conf_reg(info->pins[i]) = 4 * i . Commit 34027ca2 ("pinctrl: imx25: fix numbering for pins") tried to fix that but made the situation: info->pins[i-1].number = i conf_reg(info->pins[i-1]) = 4 * i which is hardly better but fixed the error seen back then. So insert another reserved entry in the array to finally yield: info->pins[i].number = i conf_reg(info->pins[i]) = 4 * i Fixes: 34027ca2 ("pinctrl: imx25: fix numbering for pins") Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Thomas Gleixner authored
commit 56fd16ca upstream. timekeeping_init() can set the wall time offset, so we need to increment the clock_was_set_seq counter. That way hrtimers will pick up the early offset immediately. Otherwise on a machine which does not set wall time later in the boot process the hrtimer offset is stale at 0 and wall time timers are going to expire with a delay of 45 years. Fixes: 868a3e91 "hrtimer: Make offset update smarter" Reported-and-tested-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Stefan Liebler <stli@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org> Signed-off-by:
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Ilya Dryomov authored
commit 3ebe138a upstream. If rbd_dev_image_probe() in rbd_dev_probe_parent() fails, header_name is freed twice: once in rbd_dev_probe_parent() and then in its caller rbd_dev_image_probe() (rbd_dev_image_probe() is called recursively to handle parent images). rbd_dev_probe_parent() is responsible for probing the parent, so it shouldn't muck with clone's fields. Signed-off-by:
Ilya Dryomov <idryomov@gmail.com> Reviewed-by:
Alex Elder <elder@linaro.org> Signed-off-by:
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Mike Snitzer authored
commit ba30670f upstream. Fixes: ac8c3f3d ("dm thin: generate event when metadata threshold passed") Signed-off-by:
Mike Snitzer <snitzer@redhat.com> Signed-off-by:
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Michel Dänzer authored
commit f6c7aba4 upstream. This fixes flickering issues caused by prematurely firing pflip interrupts. v2 (chk): add commit message, fix DCE V10/V11 and DM as well v3: Re-enable pflip interrupt wherever we re-enable a CRTC v4: Enable pflip interrupt in DAL as well v5: drop DAL changes for upstream v6: (agd): only enable interrupts on crtcs that exist v7: (agd): integrate suggestions from Michel Signed-off-by:
Michel Dänzer <michel.daenzer@amd.com> Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Alex Deucher authored
commit e79d5c08 upstream. Make sure we are not the root device before attempting to read the pcie bridge registers to check the pcie gen speeed. Fixes a crash when the device is passed through to a VM. Reviewed-by:
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Alex Deucher authored
commit 26d0c21d upstream. Hw only has 3 crtcs. copy paste typo. Signed-off-by:
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Alex Deucher authored
commit fa022a9b upstream. They were added relatively early in the driver init process which meant that in some cases the driver was not finished initializing before external tools tried to use them which could result in a crash depending on the timing. Signed-off-by:
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Alex Deucher authored
commit 51a4726b upstream. They were added relatively early in the driver init process which meant that in some cases the driver was not finished initializing before external tools tried to use them which could result in a crash depending on the timing. Signed-off-by:
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Dave Airlie authored
commit bc8c131c upstream. This allows tiled monitors to work with radeon once mst is enabled. Signed-off-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
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Dave Airlie authored
commit ae491542 upstream. This zeroes the msg so no random stack data ends up getting sent, it also limits the function to not accepting > 4 i2c msgs. Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Ben Skeggs authored
commit f231976c upstream. We need to do this in order to prevent accesses to the device while it's powered down. Userspace may have an mmap of the fb, and there's no good way (that I know of) to prevent it from touching the device otherwise. This fixes some nasty races between runpm and plymouth on some systems, which result in the GPU getting very upset and hanging the boot. Signed-off-by:
Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
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Gerd Hoffmann authored
commit 60906529 upstream. Commit "c0fe07aa drm/qxl: rewrite framebuffer support" has a bug in the dirty rectangle tracking: Instead of ignoring an empty dirty rectangle when adding a new dirty region the dirty region gets extended to the upper left corner. Fix it. Signed-off-by:
Gerd Hoffmann <kraxel@redhat.com> Signed-off-by:
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Paolo Bonzini authored
commit b10d92a5 upstream. In order to get into 64-bit protected mode, you need to enable paging while EFER.LMA=1. For this to work, CS.L must be 0. Currently, we load the segments before CR0 and CR4, which means that if RSM returns into 64-bit protected mode CS.L is already 1 and everything breaks. Luckily, CS.L=0 is always the case when executing RSM, because it is forbidden to execute RSM from 64-bit protected mode. Hence it is enough to load CR0 and CR4 first, and only then the segments. Fixes: 660a5d51Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
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Paolo Bonzini authored
commit 73917739 upstream. An SMI to a halted VCPU must wake it up, hence a VCPU with a pending SMI must be considered runnable. Fixes: 64d60670Signed-off-by:
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Paolo Bonzini authored
commit 5d9bc648 upstream. Split the huge conditional in two functions. Fixes: 64d60670Reviewed-by:
Radim Krčmář <rkrcmar@redhat.com> Signed-off-by:
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Shaohua Li authored
commit 874bbfe6 upstream. My system keeps crashing with below message. vmstat_update() schedules a delayed work in current cpu and expects the work runs in the cpu. schedule_delayed_work() is expected to make delayed work run in local cpu. The problem is timer can be migrated with NO_HZ. __queue_work() queues work in timer handler, which could run in a different cpu other than where the delayed work is scheduled. The end result is the delayed work runs in different cpu. The patch makes __queue_delayed_work records local cpu earlier. Where the timer runs doesn't change where the work runs with the change. [ 28.010131] ------------[ cut here ]------------ [ 28.010609] kernel BUG at ../mm/vmstat.c:1392! [ 28.011099] invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN [ 28.011860] Modules linked in: [ 28.012245] CPU: 0 PID: 289 Comm: kworker/0:3 Tainted: G W4.3.0-rc3+ #634 [ 28.013065] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140709_153802- 04/01/2014 [ 28.014160] Workqueue: events vmstat_update [ 28.014571] task: ffff880117682580 ti: ffff8800ba428000 task.ti: ffff8800ba428000 [ 28.015445] RIP: 0010:[<ffffffff8115f921>] [<ffffffff8115f921>]vmstat_update+0x31/0x80 [ 28.016282] RSP: 0018:ffff8800ba42fd80 EFLAGS: 00010297 [ 28.016812] RAX: 0000000000000000 RBX: ffff88011a858dc0 RCX:0000000000000000 [ 28.017585] RDX: ffff880117682580 RSI: ffffffff81f14d8c RDI:ffffffff81f4df8d [ 28.018366] RBP: ffff8800ba42fd90 R08: 0000000000000001 R09:0000000000000000 [ 28.019169] R10: 0000000000000000 R11: 0000000000000121 R12:ffff8800baa9f640 [ 28.019947] R13: ffff88011a81e340 R14: ffff88011a823700 R15:0000000000000000 [ 28.020071] FS: 0000000000000000(0000) GS:ffff88011a800000(0000)knlGS:0000000000000000 [ 28.020071] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 28.020071] CR2: 00007ff6144b01d0 CR3: 00000000b8e93000 CR4:00000000000006f0 [ 28.020071] Stack: [ 28.020071] ffff88011a858dc0 ffff8800baa9f640 ffff8800ba42fe00ffffffff8106bd88 [ 28.020071] ffffffff8106bd0b 0000000000000096 0000000000000000ffffffff82f9b1e8 [ 28.020071] ffffffff829f0b10 0000000000000000 ffffffff81f18460ffff88011a81e340 [ 28.020071] Call Trace: [ 28.020071] [<ffffffff8106bd88>] process_one_work+0x1c8/0x540 [ 28.020071] [<ffffffff8106bd0b>] ? process_one_work+0x14b/0x540 [ 28.020071] [<ffffffff8106c214>] worker_thread+0x114/0x460 [ 28.020071] [<ffffffff8106c100>] ? process_one_work+0x540/0x540 [ 28.020071] [<ffffffff81071bf8>] kthread+0xf8/0x110 [ 28.020071] [<ffffffff81071b00>] ?kthread_create_on_node+0x200/0x200 [ 28.020071] [<ffffffff81a6522f>] ret_from_fork+0x3f/0x70 [ 28.020071] [<ffffffff81071b00>] ?kthread_create_on_node+0x200/0x200 Signed-off-by:
Shaohua Li <shli@fb.com> Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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Wolfram Sang authored
commit 36d48fb5 upstream. The core may register clients attached to this master which may use funtionality from the master. So, RuntimePM must be enabled before, otherwise this will fail. Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by:
Wolfram Sang <wsa@the-dreams.de> Acked-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by:
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Mika Westerberg authored
commit 56d4b8a2 upstream. ACPI SSCN/FMCN methods were originally added because then the platform can provide the most accurate HCNT/LCNT values to the driver. However, this seems not to be true for Dell Inspiron 7348 where using these causes the touchpad to fail in boot: i2c_hid i2c-DLL0675:00: failed to retrieve report from device. i2c_designware INT3433:00: i2c_dw_handle_tx_abort: lost arbitration i2c_hid i2c-DLL0675:00: failed to retrieve report from device. i2c_designware INT3433:00: controller timed out The values received from ACPI are (in fast mode): HCNT: 72 LCNT: 160 this translates to following timings (input clock is 100MHz on Broadwell): tHIGH: 720 ns (spec min 600 ns) tLOW: 1600 ns (spec min 1300 ns) Bus period: 2920 ns (assuming 300 ns tf and tr) Bus speed: 342.5 kHz Both tHIGH and tLOW are within the I2C specification. The calculated values when ACPI parameters are not used are (in fast mode): HCNT: 87 LCNT: 159 which translates to: tHIGH: 870 ns (spec min 600 ns) tLOW: 1590 ns (spec min 1300 ns) Bus period 3060 ns (assuming 300 ns tf and tr) Bus speed 326.8 kHz These values are also within the I2C specification. Since both ACPI and calculated values meet the I2C specification timing requirements it is hard to say why the touchpad does not function properly with the ACPI values except that the bus speed is higher in this case (but still well below the max 400kHz). Solve this by adding DMI quirk to the driver that disables using ACPI parameters on this particulare machine. Reported-by:
Pavel Roskin <plroskin@gmail.com> Signed-off-by:
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Wolfram Sang authored
commit eadd709f upstream. The core may register clients attached to this master which may use funtionality from the master. So, RuntimePM must be enabled before, otherwise this will fail. While here, move drvdata, too. Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by:
Kukjin Kim <kgene@kernel.org> Signed-off-by:
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Wolfram Sang authored
commit 4f7effdd upstream. The core may register clients attached to this master which may use funtionality from the master. So, RuntimePM must be enabled before, otherwise this will fail. While here, move drvdata, too. Reported-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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Javier Martinez Canillas authored
commit 1b52e50f upstream. If i2c_new_dummy() fails in max77843_chg_init(), an PTR_ERR(NULL) is returned which is 0. So the function was wrongly returning a success value instead of an error code. Fixes: c7f585fe ("mfd: max77843: Add max77843 MFD driver core driver") Signed-off-by:
Javier Martinez Canillas <javier@osg.samsung.com> Reviewed-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
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Christoph Hellwig authored
commit 8c3ad9cb upstream. Recent Linux clients have started to send GETLAYOUT requests with minlength less than blocksize. Servers aren't really allowed to impose this kind of restriction on layouts; see RFC 5661 section 18.43.3 for details. This has been observed to cause indefinite hangs on fsx runs on some clients. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Linus Walleij authored
commit c00def71 upstream. This removes a lot of ancient cruft from the Ux500 SMP boot. Instead of the pen grab/release, just point the ROM to secondary_boot() and start the second CPU there, then send the IPI. Use our own SMP enable method. This enables us to remove the last static mapping and get both CPUs booting properly. Tested this and it just works. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
Kevin Hilman <khilman@linaro.org> Signed-off-by:
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