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2014-08-19usb: atmel_usba_udc: fix it to deal with final dma channelBo Shen
As, the interrupt for DMA is counted from 1, so need to checked the USBA_NR_DMAS, in old way, it only check (USBA_NR_DMAS - 1), so fix it. Reported-by: Max Liao <liaops@embest-tech.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-19usb: gadget: fix error return codeJulia Lawall
Convert a zero return value on error to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-19usb: phy: samsung: Fix wrong bit mask for PHYPARAM1_PCS_TXDEEMPHJingoo Han
According to the datasheet, PHYPARAM1_PCS_TXDEEMPH is set as 6 bits [5:0]. Thus, the bit mask should be set as 0x3f, instead of 0x1f. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-19usb: dbgp gadget: fix use after free in dbgp_unbind()Alexey Khoroshilov
After dbgp_bind()-dbgp_unbind() cycle happens, static variable dbgp contains pointers to already deallocated memory (dbgp.serial and dbgp.req). If the next dbgp_bind() fails, for example in usb_ep_alloc_request(), dbgp_bind() calls dbgp_unbind() on failure path, and dbgp_unbind() frees dbgp.serial that still stores a pointer to already deallocated memory. The patch sets pointers to NULL in dbgp_unbind(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-19usb: phy: drop kfree of devm_kzalloc's dataHimangi Saraogi
Using kfree to free data allocated with devm_kzalloc causes double frees. The Coccinelle semantic patch that fixes this problem is as follows: // <smpl> @@ expression x; @@ x = devm_kzalloc(...) ... ?-kfree(x); // </smpl> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-19usb: phy: return -ENODEV on failure of try_module_getArjun Sreedharan
When __usb_find_phy_dev() does not return error and try_module_get() fails, return -ENODEV. Signed-off-by: Arjun Sreedharan <arjun024@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-19ARM: dts: imx53-qsrb: Fix suspend/resumeFabio Estevam
The following error is seen after a suspend/resume cycle on a mx53qsb with a MC34708 PMIC: root@freescale /$ echo mem > /sys/power/state [ 32.630592] PM: Syncing filesystems ... done. [ 32.643924] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 32.652384] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 32.679156] PM: suspend of devices complete after 13.113 msecs [ 32.685128] PM: suspend devices took 0.030 seconds [ 32.696109] PM: late suspend of devices complete after 6.133 msecs [ 33.313032] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 33.322009] PM: noirq suspend of devices complete after 619.667 msecs [ 33.328544] Disabling non-boot CPUs ... [ 33.335031] PM: noirq resume of devices complete after 2.352 msecs [ 33.842940] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 33.976095] [sched_delayed] sched: RT throttling activated [ 33.984804] PM: early resume of devices complete after 642.642 msecs [ 34.352954] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 34.862910] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 34.996595] PM: resume of devices complete after 1005.367 msecs [ 35.372925] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 35.882911] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 35.955707] PM: resume devices took 1.970 seconds [ 35.960445] Restarting tasks ... done. [ 35.993386] fec 63fec000.ethernet eth0: Link is Down [ 36.392980] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 36.902908] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 36.953036] ata1: SATA link down (SStatus 0 SControl 300) [ 37.412922] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 37.922906] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 37.993379] fec 63fec000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx [ 38.432938] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 38.942920] mc13xxx 0-0008: Failed to read IRQ status: -110 [ 39.452933] mc13xxx 0-0008: Failed to read IRQ status: -110 (flood of this error message continues forever) Commit 5169df8be0a432ee ("ARM: dts: i.MX53: add support for MCIMX53-START-R") missed to configure the IOMUX for the PMIC IRQ pin. Configure the PMIC IRQ pin so that the suspend/resume sequence behaves cleanly as expected. Cc: <stable@vger.kernel.org> # 3.16 Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-08-19virt/kvm/assigned-dev.c: Set 'dev->irq_source_id' to '-1' after free itChen Gang
As a generic function, deassign_guest_irq() assumes it can be called even if assign_guest_irq() is not be called successfully (which can be triggered by ioctl from user mode, indirectly). So for assign_guest_irq() failure process, need set 'dev->irq_source_id' to -1 after free 'dev->irq_source_id', or deassign_guest_irq() may free it again. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-19Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"Paolo Bonzini
This reverts commit 682367c494869008eb89ef733f196e99415ae862, which causes 32-bit SMP Windows 7 guests to panic. SeaBIOS has a limit on the number of MTRRs that it can handle, and this patch exceeded the limit. Better revert it. Thanks to Nadav Amit for debugging the cause. Cc: stable@nongnu.org Reported-by: Wanpeng Li <wanpeng.li@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-19KVM: x86: do not check CS.DPL against RPL during task switchPaolo Bonzini
This reverts the check added by commit 5045b468037d (KVM: x86: check CS.DPL against RPL during task switch, 2014-05-15). Although the CS.DPL=CS.RPL check is mentioned in table 7-1 of the SDM as causing a #TSS exception, it is not mentioned in table 6-6 that lists "invalid TSS conditions" which cause #TSS exceptions. In fact it causes some tests to fail, which pass on bare-metal. Keep the rest of the commit, since we will find new uses for it in 3.18. Reported-by: Nadav Amit <namit@cs.technion.ac.il> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-19KVM: x86: Avoid emulating instructions on #UD mistakenlyNadav Amit
Commit d40a6898e5 mistakenly caused instructions which are not marked as EmulateOnUD to be emulated upon #UD exception. The commit caused the check of whether the instruction flags include EmulateOnUD to never be evaluated. As a result instructions whose emulation is broken may be emulated. This fix moves the evaluation of EmulateOnUD so it would be evaluated. Signed-off-by: Nadav Amit <namit@cs.technion.ac.il> [Tweak operand order in &&, remove EmulateOnUD where it's now superfluous. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-19PC, KVM, CMA: Fix regression caused by wrong get_order() useAlexey Kardashevskiy
fc95ca7284bc54953165cba76c3228bd2cdb9591 claims that there is no functional change but this is not true as it calls get_order() (which takes bytes) where it should have called order_base_2() and the kernel stops on VM_BUG_ON(). This replaces get_order() with order_base_2() (round-up version of ilog2). Suggested-by: Paul Mackerras <paulus@samba.org> Cc: Alexander Graf <agraf@suse.de> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-19kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)Michael S. Tsirkin
The third parameter of kvm_iommu_put_pages is wrong, It should be 'gfn - slot->base_gfn'. By making gfn very large, malicious guest or userspace can cause kvm to go to this error path, and subsequently to pass a huge value as size. Alternatively if gfn is small, then pages would be pinned but never unpinned, causing host memory leak and local DOS. Passing a reasonable but large value could be the most dangerous case, because it would unpin a page that should have stayed pinned, and thus allow the device to DMA into arbitrary memory. However, this cannot happen because of the condition that can trigger the error: - out of memory (where you can't allocate even a single page) should not be possible for the attacker to trigger - when exceeding the iommu's address space, guest pages after gfn will also exceed the iommu's address space, and inside kvm_iommu_put_pages() the iommu_iova_to_phys() will fail. The page thus would not be unpinned at all. Reported-by: Jack Morgenstein <jackm@mellanox.com> Cc: stable@vger.kernel.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-19ARM: dts: imx6sx: fix the pad setting for uart CTS_BFugang Duan
The current pinfunc define all uart CTS_B IO port for DCE uart 'CTS_B' IP port. Since uart IP port 'CTS_B' is output, and it don't need to set 'SELECT_INPUT' bit. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-08-19MIPS: Remove race window in page fault handlingLars Persson
Multicore MIPSes without I/D hardware coherency suffered from a race condition in the page fault handler. The page table entry was published before any pending lazy D-cache flush was committed, hence it allowed execution of stale page cache data by other VPEs in the system. To make the cache handling safe we need to perform flushing already in the set_pte_at function. MIPSes without coherent I-caches can get a small increase in flushes due to the unavailability of the execute flag in set_pte_at. [ralf@linux-mips.org: outlining set_pte_at() saves a good k in a test build, so I moved its definition from pgtable.h to cache.c.] Signed-off-by: Lars Persson <larper@axis.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7511/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19MIPS: Malta: Improve system memory detection for '{e, }memsize' >= 2GMarkos Chandras
Using kstrtol to parse the "{e,}memsize" variables was wrong because this parses signed long numbers. In case of '{e,}memsize' >= 2G, the top bit is set, resulting to -ERANGE errors and possibly random system memory boundaries. We fix this by replacing "kstrtol" with "kstrtoul". We also improve the code to check the kstrtoul return value and print a warning if an error was returned. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7543/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19MIPS: Alchemy: Fix db1200 PSC clock enablementManuel Lauss
Enable PSC0 (I2C/SPI) clock and leave PSC1 (Audio) alone. This patch restores functionality to both Audio and I2C/SPI. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/7544/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19MIPS: BCM47XX: Fix reboot problem on BCM4705/BCM4785Hauke Mehrtens
This adds some code based on code from the Broadcom GPL tar to fix the reboot problems on BCM4705/BCM4785. I tried rebooting my device for ~10 times and have never seen a problem. This reverts the changes in the previous commit and adds the real fix as suggested by Rafał. Setting bit 22 in Reg 22, sel 4 puts the BIU (Bus Interface Unit) into async mode. The previous commit was 316cad5c1d4daee998cd1f83ccdb437f6f20d45c [MIPS: BCM47XX: make reboot more relaiable] Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: jogo@openwrt.org Cc: zajec5@gmail.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7545/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19MIPS: Remove duplicated include from numa.cWei Yongjun
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: Huacai Chen <chenhc@lemote.com> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7537/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19MIPS: Add common plat_irq_dispatch declarationSergey Ryazanov
Add common declaration to get rid of following sparse warning: "symbol 'plat_irq_dispatch' was not declared. Should it be static?" Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: Linux MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/7539/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19MIPS: MSP71xx: remove unused plat_irq_dispatch() argumentSergey Ryazanov
Remove unused argument to make the plat_irq_dispatch() function declaration similar to the realization of other platforms. Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: Linux MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/7538/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19ALSA: hda/hdmi - apply Valleyview fix-ups to Cherryview display codecLibin Yang
Valleyview and Cherryview have the same behavior on display audio. So this patch defines is_valleyview_plus() to include codecs for both Valleyview and its successor Cherryview, and apply Valleyview fix-ups to Cherryview. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-19ALSA: hda/hdmi - set depop_delay for haswell plusLibin Yang
Both Haswell and Broadwell need set depop_delay to 0. So apply this setting to haswell plus. Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-19md/raid10: always initialise ->state on newly allocated r10_bioNeilBrown
Most places which allocate an r10_bio zero the ->state, some don't. As the r10_bio comes from a mempool, and the allocation function uses kzalloc it is often zero anyway. But sometimes it isn't and it is best to be safe. I only noticed this because of the bug fixed by an earlier patch where the r10_bios allocated for a reshape were left around to be used by a subsequent resync. In that case the R10BIO_IsReshape flag caused problems. Signed-off-by: NeilBrown <neilb@suse.de>
2014-08-19md/raid10: avoid memory leak on error path during reshape.NeilBrown
If raid10 reshape fails to find somewhere to read a block from, it returns without freeing memory... Signed-off-by: NeilBrown <neilb@suse.de>
2014-08-19md/raid10: Fix memory leak when raid10 reshape completes.NeilBrown
When a raid10 commences a resync/recovery/reshape it allocates some buffer space. When a resync/recovery completes the buffer space is freed. But not when the reshape completes. This can result in a small memory leak. There is a subtle side-effect of this bug. When a RAID10 is reshaped to a larger array (more devices), the reshape is immediately followed by a "resync" of the new space. This "resync" will use the buffer space which was allocated for "reshape". This can cause problems including a "BUG" in the SCSI layer. So this is suitable for -stable. Cc: stable@vger.kernel.org (v3.5+) Fixes: 3ea7daa5d7fde47cd41f4d56c2deb949114da9d6 Signed-off-by: NeilBrown <neilb@suse.de>
2014-08-19md/raid10: fix memory leak when reshaping a RAID10.NeilBrown
raid10 reshape clears unwanted bits from a bio->bi_flags using a method which, while clumsy, worked until 3.10 when BIO_OWNS_VEC was added. Since then it clears that bit but shouldn't. This results in a memory leak. So change to used the approved method of clearing unwanted bits. As this causes a memory leak which can consume all of memory the fix is suitable for -stable. Fixes: a38352e0ac02dbbd4fa464dc22d1352b5fbd06fd Cc: stable@vger.kernel.org (v3.10+) Reported-by: mdraid.pkoch@dfgh.net (Peter Koch) Signed-off-by: NeilBrown <neilb@suse.de>
2014-08-19ALSA: hda - restore the gpio led after resumeHui Wang
On some HP laptops, the mute led is controlled by codec gpio. When some machine resume from s3/s4, the codec gpio data will be cleared to 0 by BIOS: Before suspend: IO[3]: enable=1, dir=1, wake=0, sticky=0, data=1, unsol=0 After resume: IO[3]: enable=1, dir=1, wake=0, sticky=0, data=0, unsol=0 To skip the AFG node to enter D3 can't fix this problem. A workaround is to restore the gpio data when the system resume back from s3/s4. It is safe even on the machines without this problem. BugLink: https://bugs.launchpad.net/bugs/1358116 Tested-by: Franz Hsieh <franz.hsieh@canonical.com> Cc: stable@vger.kernel.org Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-18Merge tag 'xtensa-for-next-20140815' into for_nextChris Zankel
Xtensa improvements for 3.17: - support highmem on cores with aliasing data cache. Enable highmem on kc705 by default; - simplify addition of new core variants (no need to modify Kconfig / Makefiles); - improve robustness of unaligned access handler and its interaction with window overflow/underflow exception handlers; - deprecate atomic and spill registers syscalls; - clean up Kconfig: remove orphan MATH_EMULATION, sort 'select' statements; - wire up renameat2 syscall. Various fixes: - fix address checks in dma_{alloc,free}_coherent (runtime BUG); - fix access to THREAD_RA/THREAD_SP/THREAD_DS (debug build breakage); - fix TLBTEMP_BASE_2 region handling in fast_second_level_miss (runtime unrecoverable exception); - fix a6 and a7 handling in fast_syscall_xtensa (runtime userspace register clobbering); - fix kernel/user jump out of fast_unaligned (potential runtime unrecoverable exception); - replace termios IOCTL code definitions with constants (userspace build breakage). Signed-off-by: Chris Zankel <chris@zankel.net>
2014-08-19iommu/core: Check for the right function pointer in iommu_map()Joerg Roedel
Check for the ->map and not the ->unmap pointer. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2014-08-18libata: widen Crucial M550 blacklist matchingTejun Heo
Crucial M550 may cause data corruption on queued trims and is blacklisted. The pattern used for it fails to match 1TB one as the capacity section will be four chars instead of three. Widen the pattern. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Charles Reiss <woggling@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81071 Cc: stable@vger.kernel.org
2014-08-18drm/radeon: Only flush HDP cache for indirect buffers from userspaceMichel Dänzer
It isn't necessary for command streams generated by the kernel (at least not while we aren't storing ring or indirect buffers in VRAM). Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-08-18drm/radeon: properly document reloc priority maskChristian König
Instead of hard coding the value properly document that this is an userspace interface. No intended functional change. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-08-18MIPS: GIC: Remove useless parens from GICBIS().Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-18MIPS: perf: Mark pmu interupt IRQF_NO_THREADYang Wei
In RT kernel, I ran into the following calltrace, so PMU interrupts cannot be threaded in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0 INFO: lockdep is turned off. Call Trace: [<ffffffff8088595c>] dump_stack+0x1c/0x50 [<ffffffff801a958c>] __might_sleep+0x13c/0x148 [<ffffffff80891c54>] rt_spin_lock+0x3c/0xb0 [<ffffffff801ad29c>] __wake_up+0x3c/0x80 [<ffffffff80243ba4>] perf_event_wakeup+0x8c/0xf8 [<ffffffff80243c50>] perf_pending_event+0x40/0x78 [<ffffffff8023d88c>] irq_work_run+0x74/0xc0 [<ffffffff80152640>] mipsxx_pmu_handle_shared_irq+0x110/0x228 [<ffffffff8015276c>] mipsxx_pmu_handle_irq+0x14/0x30 [<ffffffff801ffda4>] handle_irq_event_percpu+0xbc/0x470 [<ffffffff80204478>] handle_percpu_irq+0x98/0xc8 [<ffffffff801ff284>] generic_handle_irq+0x4c/0x68 [<ffffffff8089748c>] do_IRQ+0x2c/0x48 [<ffffffff80105864>] plat_irq_dispatch+0x64/0xd0 [ralf@linux-mips.org: I don't see why based on this register dump the handler should be marked IRQF_NO_THREAD - but the handler is manipulating per-CPU resources so we don't want it to be rescheduled to another CPU.] Signed-off-by: Yang Wei <Wei.Yang@windriver.com> Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org Cc: mingo@redhat.com Cc: acme@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7506/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-18netfilter: move NAT Kconfig switches out of the iptables scopePablo Neira Ayuso
Currently, the NAT configs depend on iptables and ip6tables. However, users should be capable of enabling NAT for nft without having to switch on iptables. Fix this by adding new specific IP_NF_NAT and IP6_NF_NAT config switches for iptables and ip6tables NAT support. I have also moved the original NF_NAT_IPV4 and NF_NAT_IPV6 configs out of the scope of iptables to make them independent of it. This patch also adds NETFILTER_XT_NAT which selects the xt_nat combo that provides snat/dnat for iptables. We cannot use NF_NAT anymore since nf_tables can select this. Reported-by: Matteo Croce <technoboy85@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-08-18asm-generic: add memfd_create system call to unistd.hWill Deacon
Commit 9183df25fe7b ("shm: add memfd_create() syscall") added a new system call (memfd_create) but didn't update the asm-generic unistd header. This patch adds the new system call to the asm-generic version of unistd.h so that it can be used by architectures such as arm64. Cc: Arnd Bergmann <arnd@arndb.de> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-18arm64: compat: wire up memfd_create and getrandom syscalls for aarch32Will Deacon
arch/arm/ just grew support for the new memfd_create and getrandom syscalls, so add them to our compat layer too. Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-18arm64: fix typo in I-cache policy detectionArd Biesheuvel
This removes an unfortunately placed semi-colon resulting in all instruction caches being classified as AIVIVT. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-18[IA64] Wire up memfd_create() system callTony Luck
Yet another system call. This one added by: commit 9183df25fe7b194563db3fec6dc3202a5855839c shm: add memfd_create() syscall Signed-off-by: Tony Luck <tony.luck@intel.com>
2014-08-18cgroup: reject cgroup names with '\n'Alban Crequy
/proc/<pid>/cgroup contains one cgroup path on each line. If cgroup names are allowed to contain "\n", applications cannot parse /proc/<pid>/cgroup safely. Signed-off-by: Alban Crequy <alban.crequy@collabora.co.uk> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
2014-08-18ASoC: core: fix .info for SND_SOC_BYTES_TLVSubhransu S. Prusty
Commit 7523a271 - "ASoC: core: add a helper for extended byte controls using TLV" introduced support for TLV byte controls but had a typo for the info function, so fix the same Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-18drm/i915: don't try to retrain a DP link on an inactive CRTCImre Deak
Atm we may retrain the DP link even if the CRTC is inactive through HPD work->intel_dp_check_link_status(). This in turn can lock up the PHY (at least on BYT), since the DP port is disabled. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81948 Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: stable@vger.kernel.org (3.16+) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-08-18drm/i915: make sure VDD is turned off during system suspendImre Deak
Atm we may leave eDP VDD enabled during system suspend after the CRTCs are disabled through an HPD->DPCD read event. So disable VDD during suspend at a point when no HPDs can occur. Note that runtime suspend doesn't have the same problem, since there the RPM ref held by VDD provides already the needed serialization. v2: - add note to commit message about the runtime suspend path (Ville) - use edp_panel_vdd_off_sync(), so we can keep the WARN in edp_panel_vdd_off() (Ville) v3: - rebased on -fixes (for_each_intel_encoder()->list_for_each_entry()) (Imre) Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v2) Cc: stable@vger.kernel.org (3.16+) [Jani: fix sparse warning reported by Fengguang Wu] Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-08-18drm/i915: cancel hotplug and dig_port work during suspend and unloadImre Deak
Make sure these work handlers don't run after we system suspend or unload the driver. Note that we don't cancel the handlers during runtime suspend. That could lead to a lockup, since we take a runtime PM ref from the handlers themselves. Fortunaltely canceling there is not needed since the RPM ref itself provides for the needed serialization. v2: - fix the order of canceling dig_port_work wrt. hotplug_work (Ville) - zero out {long,short}_hpd_port_mask and hpd_event_bits for speed (Ville) Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: stable@vger.kernel.org (3.16+) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-08-18drm/i915: fix HPD IRQ reenable work cancelationImre Deak
Atm, the HPD IRQ reenable timer can get rearmed right after it's canceled. Also to access the HPD IRQ mask registers we need to wake up the HW. Solve both issues by converting the reenable timer to a delayed work and grabbing a runtime PM reference in the work. By this we can also forgo canceling the timer during runtime suspend, since the only important thing there is that the HW is awake when we write the registers and that's ensured by the RPM ref. So do the cancelation only during driver unload time; this is also a requirement for an upcoming patch where we want to cancel all HPD related works only during system suspend and driver unload time, but not during runtime suspend. Note that there is still a race between the HPD IRQ reenable work and drm_irq_uninstall() during driver unload, where the work can reenable the HPD IRQs disabled by drm_irq_uninstall(). This isn't a problem since the HPD IRQs will still be effectively masked by the first level interrupt mask. v2-3: - unchanged v4: - use proper API for changing the expiration time for an already pending delayed work (Jani) Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v2) Cc: stable@vger.kernel.org (3.16+) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-08-18drm/i915: take display port power domain in DP HPD handlerImre Deak
Ville noticed that we can call ibx_digital_port_connected() which accesses the HW without holding any power well/runtime pm reference. Fix this by holding a display port power domain reference around the whole hpd_pulse handler. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Cc: stable@vger.kernel.org (3.16+) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-08-18pata_scc: propagate return value of scc_wait_after_resetArjun Sreedharan
scc_bus_softreset not necessarily should return zero. Propagate the error code. Signed-off-by: Arjun Sreedharan <arjun024@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
2014-08-18Merge branch 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linuxDave Airlie
radeon fixes for 3.17, kind of all over the place (dpm, GPUVM, etc.) * 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: Remove duplicate include from Makefile drm/radeon/dpm: select the appropriate vce power state for KV/KB/ML drm/radeon: Add ability to get and change dpm state when radeon PX card is turned off drm/radeon: Add missing lines to ci_set_thermal_temperature_range drm/radeon: Always flush VM again on < CIK drm/radeon: add a check for allocation failure (v2) drm/radeon: use pfp for all vm_flush related updates drm/radeon: add bapm module parameter
2014-08-18irqchip: crossbar: Off by one bugs in initDan Carpenter
My static checker complains that the ">" should be ">=" or else we go beyond the end of the cb->irq_map[] array on the next line. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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