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2018-01-30drm/i915/cnl: Add Cannonlake PCI IDs for another SKU.Rodrigo Vivi
The only difference is that this SKUs has the full Port A/E split named as Port F. But since SKUs differences don't matter on the platform definition group and ids, let's merge all off them together. v2: Really include the PCI IDs to the picidlist[]; v3: Add the PCI Id for another SKU (Anusha). v4: Update IDs, really include to pciidlists again. v5: Unify all GT2 IDs. v6: Unify in a way that we don't break early-quirks.c v7: Remove GT reference since it doesn't matter here (Paulo) Also move IS_CNL_WITH_PORT_F macro to this patch to make it easier for review this part and also to get used sooner. v8: Rebased on top of commit 5db47e37b387 ("Revert "drm/i915: mark all device info struct with __initconst"") Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-1-rodrigo.vivi@intel.com
2018-01-29Merge drm-next into drm-intel-next-queuedJoonas Lahtinen
Pull 4.15 into drm-intel-next-queued for next feature pull. Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2018-01-19drm/i915/cnl: Add Port F definition.Rodrigo Vivi
Some Cannonlake SKUs will come with a full split between port A and port E. This will be called port F although it is not a 6th port, but only a split. Note this patch alone is not sufficient for port F enabling, it's just the first step. v2: Fix size of dvo_ports found by Ander. v3: Adding missing cases from intel_bios.c for Port_F v4: Adding other missing cases and fix the commit message. v5: Rebase on top of display headers rework. v6 (from Paulo): improve commit message, bikeshed bit definitions. Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180111180010.24357-2-paulo.r.zanoni@intel.com
2018-01-18BackMerge tag 'v4.15-rc8' into drm-nextDave Airlie
Linux 4.15-rc8 Daniel requested this for so the intel CI won't fall over on drm-next so often.
2018-01-14Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 pti updates from Thomas Gleixner: "This contains: - a PTI bugfix to avoid setting reserved CR3 bits when PCID is disabled. This seems to cause issues on a virtual machine at least and is incorrect according to the AMD manual. - a PTI bugfix which disables the perf BTS facility if PTI is enabled. The BTS AUX buffer is not globally visible and causes the CPU to fault when the mapping disappears on switching CR3 to user space. A full fix which restores BTS on PTI is non trivial and will be worked on. - PTI bugfixes for EFI and trusted boot which make sure that the user space visible page table entries have the NX bit cleared - removal of dead code in the PTI pagetable setup functions - add PTI documentation - add a selftest for vsyscall to verify that the kernel actually implements what it advertises. - a sysfs interface to expose vulnerability and mitigation information so there is a coherent way for users to retrieve the status. - the initial spectre_v2 mitigations, aka retpoline: + The necessary ASM thunk and compiler support + The ASM variants of retpoline and the conversion of affected ASM code + Make LFENCE serializing on AMD so it can be used as speculation trap + The RSB fill after vmexit - initial objtool support for retpoline As I said in the status mail this is the most of the set of patches which should go into 4.15 except two straight forward patches still on hold: - the retpoline add on of LFENCE which waits for ACKs - the RSB fill after context switch Both should be ready to go early next week and with that we'll have covered the major holes of spectre_v2 and go back to normality" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits) x86,perf: Disable intel_bts when PTI security/Kconfig: Correct the Documentation reference for PTI x86/pti: Fix !PCID and sanitize defines selftests/x86: Add test_vsyscall x86/retpoline: Fill return stack buffer on vmexit x86/retpoline/irq32: Convert assembler indirect jumps x86/retpoline/checksum32: Convert assembler indirect jumps x86/retpoline/xen: Convert Xen hypercall indirect jumps x86/retpoline/hyperv: Convert assembler indirect jumps x86/retpoline/ftrace: Convert ftrace assembler indirect jumps x86/retpoline/entry: Convert entry assembler indirect jumps x86/retpoline/crypto: Convert crypto assembler indirect jumps x86/spectre: Add boot time option to select Spectre v2 mitigation x86/retpoline: Add initial retpoline support objtool: Allow alternatives to be ignored objtool: Detect jumps to retpoline thunks x86/pti: Make unpoison of pgd for trusted boot work for real x86/alternatives: Fix optimize_nops() checking sysfs/cpu: Fix typos in vulnerability documentation x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC ...
2018-01-13Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixlets from Andrew Morton: "4 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: tools/objtool/Makefile: don't assume sync-check.sh is executable kdump: write correct address of mem_section into vmcoreinfo kmemleak: allow to coexist with fault injection MAINTAINERS, nilfs2: change project home URLs
2018-01-13kdump: write correct address of mem_section into vmcoreinfoKirill A. Shutemov
Depending on configuration mem_section can now be an array or a pointer to an array allocated dynamically. In most cases, we can continue to refer to it as 'mem_section' regardless of what it is. But there's one exception: '&mem_section' means "address of the array" if mem_section is an array, but if mem_section is a pointer, it would mean "address of the pointer". We've stepped onto this in kdump code. VMCOREINFO_SYMBOL(mem_section) writes down address of pointer into vmcoreinfo, not array as we wanted. Let's introduce VMCOREINFO_SYMBOL_ARRAY() that would handle the situation correctly for both cases. Link: http://lkml.kernel.org/r/20180112162532.35896-1-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Fixes: 83e3c48729d9 ("mm/sparsemem: Allocate mem_section at runtime for CONFIG_SPARSEMEM_EXTREME=y") Acked-by: Baoquan He <bhe@redhat.com> Acked-by: Dave Young <dyoung@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Dave Young <dyoung@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-01-12Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Ingo Molnar: "No functional effects intended: removes leftovers from recent lockdep and refcounts work" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/refcounts: Remove stale comment from the ARCH_HAS_REFCOUNT Kconfig entry locking/lockdep: Remove cross-release leftovers locking/Documentation: Remove stale crossrelease_fullstack parameter
2018-01-12Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next A few fixes for 4.16: - Cleanup the the remains of ttm io_mem_pfn - A couple dpm quirks for SI - Add Chunming as another amdgpu maintainer - A few more huge page fixes - A few other misc fixes * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: drm/amd/pp: Implement get_max_high_clocks for CI/VI MAINTAINERS: add David (Chunming) Zhou as additional amdgpu maintainer drm/amdgpu: fix 64bit BAR detection drm/amdgpu: optimize moved handling only when vm_debug is inactive drm/amdgpu: simplify huge page handling drm/amdgpu: update VM PDs after the PTs drm/amdgpu: minor optimize VM moved handling v2 drm/amdgpu: loosen the criteria for huge pages a bit drm/amd/powerplay: set pp_num_states as 0 on error situation drm/ttm: specify DMA_ATTR_NO_WARN for huge page pools drm/ttm: remove ttm_bo_default_io_mem_pfn staging: remove the default io_mem_pfn set drm/amd/powerplay: fix memory leakage when reload (v2) drm/amdgpu/gfx9: only init the apertures used by KGD (v2) drm/amdgpu: add atpx quirk handling (v2) drm/amdgpu: Add dpm quirk for Jet PRO (v2) drm/radeon: Add dpm quirk for Jet PRO (v2)
2018-01-12Merge tag 'drm/tegra/for-4.16-rc1-fixes' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-next drm/tegra: Changes for v4.16-rc1 The bulk of these changes are preparation work and addition of support for Tegra186. Currently only HDMI output (the primary output on Jetson TX2) is supported, but the hardware is also capable of doing DSI and DisplayPort. Tegra DRM now also uses the atomic commit helpers instead of the open- coded variant that was only doing half its job. As a bit of a byproduct of the Tegra186 support the driver also gained HDMI 2.0 as well as zpos property support. Along the way there are also a few patches to clean up a few things and fix minor issues. * tag 'drm/tegra/for-4.16-rc1-fixes' of git://anongit.freedesktop.org/tegra/linux: (51 commits) drm/tegra: dc: Properly cleanup overlay planes drm/tegra: dc: Fix possible_crtcs mask for planes drm/tegra: dc: Restore YUV overlay support drm/tegra: dc: Implement legacy blending drm/tegra: Correct timeout in tegra_syncpt_wait drm/tegra: gem: Correct iommu_map_sg() error checking drm/tegra: dc: Link DC1 to DC0 on Tegra20 drm/tegra: Fix non-debugfs builds drm/tegra: dpaux: Keep reset defaults for hybrid pad parameters drm/tegra: Mark Tegra186 display hub PM functions __maybe_unused drm/tegra: Use IOMMU groups gpu: host1x: Use IOMMU groups drm/tegra: Implement zpos property drm/tegra: dc: Remove redundant spinlock drm/tegra: dc: Use direct offset to plane registers drm/tegra: dc: Support more formats drm/tegra: fb: Force alpha formats drm/tegra: dpaux: Add Tegra186 support drm/tegra: dpaux: Implement runtime PM drm/tegra: sor: Support HDMI 2.0 modes ...
2018-01-10drm/ttm: remove ttm_bo_default_io_mem_pfnTan Xiaojun
No one will use this function except ttm_bo_io_mem_pfn() now, so move the calculation of ttm_bo_default_io_mem_pfn() into ttm_bo_io_mem_pfn() and do some cleanup. Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-01-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf 2018-01-09 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Prevent out-of-bounds speculation in BPF maps by masking the index after bounds checks in order to fix spectre v1, and add an option BPF_JIT_ALWAYS_ON into Kconfig that allows for removing the BPF interpreter from the kernel in favor of JIT-only mode to make spectre v2 harder, from Alexei. 2) Remove false sharing of map refcount with max_entries which was used in spectre v1, from Daniel. 3) Add a missing NULL psock check in sockmap in order to fix a race, from John. 4) Fix test_align BPF selftest case since a recent change in verifier rejects the bit-wise arithmetic on pointers earlier but test_align update was missing, from Alexei. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-09bpf: avoid false sharing of map refcount with max_entriesDaniel Borkmann
In addition to commit b2157399cc98 ("bpf: prevent out-of-bounds speculation") also change the layout of struct bpf_map such that false sharing of fast-path members like max_entries is avoided when the maps reference counter is altered. Therefore enforce them to be placed into separate cachelines. pahole dump after change: struct bpf_map { const struct bpf_map_ops * ops; /* 0 8 */ struct bpf_map * inner_map_meta; /* 8 8 */ void * security; /* 16 8 */ enum bpf_map_type map_type; /* 24 4 */ u32 key_size; /* 28 4 */ u32 value_size; /* 32 4 */ u32 max_entries; /* 36 4 */ u32 map_flags; /* 40 4 */ u32 pages; /* 44 4 */ u32 id; /* 48 4 */ int numa_node; /* 52 4 */ bool unpriv_array; /* 56 1 */ /* XXX 7 bytes hole, try to pack */ /* --- cacheline 1 boundary (64 bytes) --- */ struct user_struct * user; /* 64 8 */ atomic_t refcnt; /* 72 4 */ atomic_t usercnt; /* 76 4 */ struct work_struct work; /* 80 32 */ char name[16]; /* 112 16 */ /* --- cacheline 2 boundary (128 bytes) --- */ /* size: 128, cachelines: 2, members: 17 */ /* sum members: 121, holes: 1, sum holes: 7 */ }; Now all entries in the first cacheline are read only throughout the life time of the map, set up once during map creation. Overall struct size and number of cachelines doesn't change from the reordering. struct bpf_map is usually first member and embedded in map structs in specific map implementations, so also avoid those members to sit at the end where it could potentially share the cacheline with first map values e.g. in the array since remote CPUs could trigger map updates just as well for those (easily dirtying members like max_entries intentionally as well) while having subsequent values in cache. Quoting from Google's Project Zero blog [1]: Additionally, at least on the Intel machine on which this was tested, bouncing modified cache lines between cores is slow, apparently because the MESI protocol is used for cache coherence [8]. Changing the reference counter of an eBPF array on one physical CPU core causes the cache line containing the reference counter to be bounced over to that CPU core, making reads of the reference counter on all other CPU cores slow until the changed reference counter has been written back to memory. Because the length and the reference counter of an eBPF array are stored in the same cache line, this also means that changing the reference counter on one physical CPU core causes reads of the eBPF array's length to be slow on other physical CPU cores (intentional false sharing). While this doesn't 'control' the out-of-bounds speculation through masking the index as in commit b2157399cc98, triggering a manipulation of the map's reference counter is really trivial, so lets not allow to easily affect max_entries from it. Splitting to separate cachelines also generally makes sense from a performance perspective anyway in that fast-path won't have a cache miss if the map gets pinned, reused in other progs, etc out of control path, thus also avoids unintentional false sharing. [1] https://googleprojectzero.blogspot.ch/2018/01/reading-privileged-memory-with-side.html Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Frag and UDP handling fixes in i40e driver, from Amritha Nambiar and Alexander Duyck. 2) Undo unintentional UAPI change in netfilter conntrack, from Florian Westphal. 3) Revert a change to how error codes are returned from dev_get_valid_name(), it broke some apps. 4) Cannot cache routes for ipv6 tunnels in the tunnel is ipv4/ipv6 dual-stack. From Eli Cooper. 5) Fix missed PMTU updates in geneve, from Xin Long. 6) Cure double free in macvlan, from Gao Feng. 7) Fix heap out-of-bounds write in rds_message_alloc_sgs(), from Mohamed Ghannam. 8) FEC bug fixes from FUgang Duan (mis-accounting of dev_id, missed deferral of probe when the regulator is not ready yet). 9) Missing DMA mapping error checks in 3c59x, from Neil Horman. 10) Turn off Broadcom tags for some b53 switches, from Florian Fainelli. 11) Fix OOPS when get_target_net() is passed an SKB whose NETLINK_CB() isn't initialized. From Andrei Vagin. 12) Fix crashes in fib6_add(), from Wei Wang. 13) PMTU bug fixes in SCTP from Marcelo Ricardo Leitner. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (56 commits) sh_eth: fix TXALCR1 offsets mdio-sun4i: Fix a memory leak phylink: mark expected switch fall-throughs in phylink_mii_ioctl sctp: fix the handling of ICMP Frag Needed for too small MTUs sctp: do not retransmit upon FragNeeded if PMTU discovery is disabled xen-netfront: enable device after manual module load bnxt_en: Fix the 'Invalid VF' id check in bnxt_vf_ndo_prep routine. bnxt_en: Fix population of flow_type in bnxt_hwrm_cfa_flow_alloc() sh_eth: fix SH7757 GEther initialization net: fec: free/restore resource in related probe error pathes uapi/if_ether.h: prevent redefinition of struct ethhdr ipv6: fix general protection fault in fib6_add() RDS: null pointer dereference in rds_atomic_free_op sh_eth: fix TSU resource handling net: stmmac: enable EEE in MII, GMII or RGMII only rtnetlink: give a user socket to get_target_net() MAINTAINERS: Update my email address. can: ems_usb: improve error reporting for error warning and error passive can: flex_can: Correct the checking for frame length in flexcan_start_xmit() can: gs_usb: fix return value of the "set_bittiming" callback ...
2018-01-09Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next Last few updates for 4.16: - Misc fixes for amdgpu - Enable swapout for reserved BOs during allocation for ttm - Misc cleanups for ttm * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: (24 commits) drm/amdgpu: Correct the IB size of bo update mapping. drm/ttm: enable swapout for reserved BOs during allocation drm/ttm: add new function to check if bo is allowable to evict or swapout drm/ttm: use an operation ctx for ttm_tt_bind drm/ttm: use an operation ctx for ttm_tt_populate in ttm_bo_driver (v2) drm/ttm: use an operation ctx for ttm_mem_global_alloc_page drm/ttm: use an operation ctx for ttm_mem_global_alloc drm/ttm: call ttm_bo_swapout directly when ttm shrink drm/vmwgfx: remove the default io_mem_pfn set drm/virtio: remove the default io_mem_pfn set drm/radeon: remove the default io_mem_pfn set drm/qxl: remove the default io_mem_pfn set drm/nouveau: remove the default io_mem_pfn set drm/mgag200: remove the default io_mem_pfn set drm/cirrus: remove the default io_mem_pfn set drm/bochs: remove the default io_mem_pfn set drm/ast: remove the default io_mem_pfn set drm/ttm: add ttm_bo_io_mem_pfn to check io_mem_pfn drm/amdgpu: fix VM faults with per VM BOs drm/ttm: drop the spin in delayed delete if the trylock doesn't work ...
2018-01-09bpf: prevent out-of-bounds speculationAlexei Starovoitov
Under speculation, CPUs may mis-predict branches in bounds checks. Thus, memory accesses under a bounds check may be speculated even if the bounds check fails, providing a primitive for building a side channel. To avoid leaking kernel data round up array-based maps and mask the index after bounds check, so speculated load with out of bounds index will load either valid value from the array or zero from the padded area. Unconditionally mask index for all array types even when max_entries are not rounded to power of 2 for root user. When map is created by unpriv user generate a sequence of bpf insns that includes AND operation to make sure that JITed code includes the same 'index & index_mask' operation. If prog_array map is created by unpriv user replace bpf_tail_call(ctx, map, index); with if (index >= max_entries) { index &= map->index_mask; bpf_tail_call(ctx, map, index); } (along with roundup to power 2) to prevent out-of-bounds speculation. There is secondary redundant 'if (index >= max_entries)' in the interpreter and in all JITs, but they can be optimized later if necessary. Other array-like maps (cpumap, devmap, sockmap, perf_event_array, cgroup_array) cannot be used by unpriv, so no changes there. That fixes bpf side of "Variant 1: bounds check bypass (CVE-2017-5753)" on all architectures with and without JIT. v2->v3: Daniel noticed that attack potentially can be crafted via syscall commands without loading the program, so add masking to those paths as well. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-08sctp: fix the handling of ICMP Frag Needed for too small MTUsMarcelo Ricardo Leitner
syzbot reported a hang involving SCTP, on which it kept flooding dmesg with the message: [ 246.742374] sctp: sctp_transport_update_pmtu: Reported pmtu 508 too low, using default minimum of 512 That happened because whenever SCTP hits an ICMP Frag Needed, it tries to adjust to the new MTU and triggers an immediate retransmission. But it didn't consider the fact that MTUs smaller than the SCTP minimum MTU allowed (512) would not cause the PMTU to change, and issued the retransmission anyway (thus leading to another ICMP Frag Needed, and so on). As IPv4 (ip_rt_min_pmtu=556) and IPv6 (IPV6_MIN_MTU=1280) minimum MTU are higher than that, sctp_transport_update_pmtu() is changed to re-fetch the PMTU that got set after our request, and with that, detect if there was an actual change or not. The fix, thus, skips the immediate retransmission if the received ICMP resulted in no change, in the hope that SCTP will select another path. Note: The value being used for the minimum MTU (512, SCTP_DEFAULT_MINSEGMENT) is not right and instead it should be (576, SCTP_MIN_PMTU), but such change belongs to another patch. Changes from v1: - do not disable PMTU discovery, in the light of commit 06ad391919b2 ("[SCTP] Don't disable PMTU discovery when mtu is small") and as suggested by Xin Long. - changed the way to break the rtx loop by detecting if the icmp resulted in a change or not Changes from v2: none See-also: https://lkml.org/lkml/2017/12/22/811 Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-08locking/lockdep: Remove cross-release leftoversIngo Molnar
There's two cross-release leftover facilities: - the crossrelease_hist_*() irq-tracing callbacks (NOPs currently) - the complete_release_commit() callback (NOP as well) Remove them. Cc: David Sterba <dsterba@suse.com> Cc: Byungchul Park <byungchul.park@lge.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-01-08sysfs/cpu: Add vulnerability folderThomas Gleixner
As the meltdown/spectre problem affects several CPU architectures, it makes sense to have common way to express whether a system is affected by a particular vulnerability or not. If affected the way to express the mitigation should be common as well. Create /sys/devices/system/cpu/vulnerabilities folder and files for meltdown, spectre_v1 and spectre_v2. Allow architectures to override the show function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Linus Torvalds <torvalds@linuxfoundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Woodhouse <dwmw@amazon.co.uk> Link: https://lkml.kernel.org/r/20180107214913.096657732@linutronix.de
2018-01-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fixes from Al Viro: - untangle sys_close() abuses in xt_bpf - deal with register_shrinker() failures in sget() * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix "netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'" sget(): handle failures of register_shrinker() mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed.
2018-01-05Merge branch 'efi-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Thomas Gleixner: - A fix for a add_efi_memmap parameter regression which ensures that the parameter is parsed before it is used. - Reinstate the virtual capsule mapping as the cached copy turned out to break Quark and other things - Remove Matt Fleming as EFI co-maintainer. He stepped back a few days ago. Thanks Matt for all your great work! * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Remove Matt Fleming as EFI co-maintainer efi/capsule-loader: Reinstate virtual capsule mapping x86/efi: Fix kernel param add_efi_memmap regression
2018-01-05Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes the following issues: - racy use of ctx->rcvused in af_alg - algif_aead crash in chacha20poly1305 - freeing bogus pointer in pcrypt - build error on MIPS in mpi - memory leak in inside-secure - memory overwrite in inside-secure - NULL pointer dereference in inside-secure - state corruption in inside-secure - build error without CRYPTO_GF128MUL in chelsio - use after free in n2" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: inside-secure - do not use areq->result for partial results crypto: inside-secure - fix request allocations in invalidation path crypto: inside-secure - free requests even if their handling failed crypto: inside-secure - per request invalidation lib/mpi: Fix umul_ppmm() for MIPS64r6 crypto: pcrypt - fix freeing pcrypt instances crypto: n2 - cure use after free crypto: af_alg - Fix race around ctx->rcvused by making it atomic_t crypto: chacha20poly1305 - validate the digest size crypto: chelsio - select CRYPTO_GF128MUL
2018-01-05sh_eth: fix SH7757 GEther initializationSergei Shtylyov
Renesas SH7757 has 2 Fast and 2 Gigabit Ether controllers, while the 'sh_eth' driver can only reset and initialize TSU of the first controller pair. Shimoda-san tried to solve that adding the 'needs_init' member to the 'struct sh_eth_plat_data', however the platform code still never sets this flag. I think that we can infer this information from the 'devno' variable (set to 'platform_device::id') and reset/init the Ether controller pair only for an even 'devno'; therefore 'sh_eth_plat_data::needs_init' can be removed... Fixes: 150647fb2c31 ("net: sh_eth: change the condition of initialization") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05fix "netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'"Al Viro
Descriptor table is a shared object; it's not a place where you can stick temporary references to files, especially when we don't need an opened file at all. Cc: stable@vger.kernel.org # v4.14 Fixes: 98589a0998b8 ("netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'") Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-01-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for your net tree, they are: 1) Fix chain filtering when dumping rules via nf_tables_dump_rules(). 2) Fix accidental change in NF_CT_STATE_UNTRACKED_BIT through uapi, introduced when removing the untracked conntrack object, from Florian Westphal. 3) Fix potential nul-dereference when releasing dump filter in nf_tables_dump_obj_done(), patch from Hangbin Liu. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05Merge tag 'imx-drm-next-2018-01-02' of ↵Dave Airlie
git://git.pengutronix.de/git/pza/linux into drm-next drm/imx: format modifier support - Add tiled prefetch support to PRE - Add format modifier support to PRG and imx-drm-core - Use runtime PM to control PRG clock - Allow building ipu-v3 under COMPILE_TEST * tag 'imx-drm-next-2018-01-02' of git://git.pengutronix.de/git/pza/linux: gpu: ipu-v3: allow to build with COMPILE_TEST drm/imx: advertise supported plane format modifiers drm/imx: add FB modifier support gpu: ipu-v3: prg: add modifier support gpu: ipu-v3: pre: add tiled prefetch support gpu: ipu-v3: prg: switch to runtime PM
2018-01-05Merge tag 'exynos-drm-next-for-v4.16' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next Remove lagacy IPP driver - This driver isn't used anymore so remove it. Marek is preparing new one which includes completely rewritten API so this driver will be replaced with the new version[1] later. And cleanups. [1] https://patches.linaro.org/cover/118386/ * tag 'exynos-drm-next-for-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: ipp: Remove Exynos DRM IPP subsystem drm/exynos/decon: Add include guard to the Exynos7 header drm/exynos/decon: Move headers from global to local place drm/exynos: decon5433: Remove unnecessary platform_get_resource() error check
2018-01-05Merge tag 'drm-amdkfd-next-2017-12-24' of ↵Dave Airlie
git://people.freedesktop.org/~gabbayo/linux into drm-next - Add CWSR (compute wave save restore) support for GFX8 (Carrizo) - Fix SDMA user-mode queues support for GFX7 (Kaveri) - Add SDMA user-mode queues support for GFX8 (Carrizo) - Allow HWS (hardware scheduling) to schedule multiple processes concurrently - Add debugfs support - Simplify process locking and lock dependencies - Refactoring topology code to prepare for dGPU support + fixes to that code - Add option to generate dummy/virtual CRAT table when its missing or deformed - Recognize CPUs other then APUs as compute entities - Various clean ups and bug fixes I have not yet sent the dGPU topology code because it depends on a patch for the PCI subsystem that adds PCIe atomics support. Once that patch is upstreamed we can continue with the rest of the dGPU code. * tag 'drm-amdkfd-next-2017-12-24' of git://people.freedesktop.org/~gabbayo/linux: (53 commits) drm/amdgpu: Add support for reporting VRAM usage drm/amdkfd: Ignore ACPI CRAT for non-APU systems drm/amdkfd: Module option to disable CRAT table drm/amdkfd: Add AQL Queue Memory flag on topology drm/amdkfd: Fixup incorrect info in the CZ CRAT table drm/amdkfd: Add perf counters to topology drm/amdkfd: Add topology support for dGPUs drm/amdkfd: Add topology support for CPUs drm/amdkfd: Fix sibling_map[] size drm/amdkfd: Simplify counting of memory banks drm/amdkfd: Turn verbose topology messages into pr_debug drm/amdkfd: sync IOLINK defines to thunk spec drm/amdkfd: Support enumerating non-GPU devices drm/amdkfd: Decouple CRAT parsing from device list update drm/amdkfd: Reorganize CRAT fetching from ACPI drm/amdkfd: Group up CRAT related functions drm/amdkfd: Fix memory leaks in kfd topology drm/amdkfd: Topology: Fix location_id drm/amdkfd: Update number of compute unit from KGD drm/amd: Remove get_vmem_size from KGD-KFD interface ...
2018-01-04uapi/if_ether.h: prevent redefinition of struct ethhdrHauke Mehrtens
Musl provides its own ethhdr struct definition. Add a guard to prevent its definition of the appropriate musl header has already been included. glibc does not implement this header, but when glibc will implement this they can just define __UAPI_DEF_ETHHDR 0 to make it work with the kernel. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03vxlan: trivial indenting fix.William Tu
Fix indentation of reserved_flags2 field in vxlanhdr_gpe. Fixes: e1e5314de08b ("vxlan: implement GPE") Signed-off-by: William Tu <u9012063@gmail.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03uapi libc compat: add fallback for unsupported libcsFelix Janda
libc-compat.h aims to prevent symbol collisions between uapi and libc headers for each supported libc. This requires continuous coordination between them. The goal of this commit is to improve the situation for libcs (such as musl) which are not yet supported and/or do not wish to be explicitly supported, while not affecting supported libcs. More precisely, with this commit, unsupported libcs can request the suppression of any specific uapi definition by defining the correspondings _UAPI_DEF_* macro as 0. This can fix symbol collisions for them, as long as the libc headers are included before the uapi headers. Inclusion in the other order is outside the scope of this commit. All infrastructure in order to enable this fallback for unsupported libcs is already in place, except that libc-compat.h unconditionally defines all _UAPI_DEF_* macros to 1 for all unsupported libcs so that any previous definitions are ignored. In order to fix this, this commit merely makes these definitions conditional. This commit together with the musl libc commit http://git.musl-libc.org/cgit/musl/commit/?id=04983f2272382af92eb8f8838964ff944fbb8258 fixes for example the following compiler errors when <linux/in6.h> is included after musl's <netinet/in.h>: ./linux/in6.h:32:8: error: redefinition of 'struct in6_addr' ./linux/in6.h:49:8: error: redefinition of 'struct sockaddr_in6' ./linux/in6.h:59:8: error: redefinition of 'struct ipv6_mreq' The comments referencing glibc are still correct, but this file is not only used for glibc any more. Signed-off-by: Felix Janda <felix.janda@posteo.de> Reviewed-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03efi/capsule-loader: Reinstate virtual capsule mappingArd Biesheuvel
Commit: 82c3768b8d68 ("efi/capsule-loader: Use a cached copy of the capsule header") ... refactored the capsule loading code that maps the capsule header, to avoid having to map it several times. However, as it turns out, the vmap() call we ended up removing did not just map the header, but the entire capsule image, and dropping this virtual mapping breaks capsules that are processed by the firmware immediately (i.e., without a reboot). Unfortunately, that change was part of a larger refactor that allowed a quirk to be implemented for Quark, which has a non-standard memory layout for capsules, and we have slightly painted ourselves into a corner by allowing quirk code to mangle the capsule header and memory layout. So we need to fix this without breaking Quark. Fortunately, Quark does not appear to care about the virtual mapping, and so we can simply do a partial revert of commit: 2a457fb31df6 ("efi/capsule-loader: Use page addresses rather than struct page pointers") ... and create a vmap() mapping of the entire capsule (including header) based on the reinstated struct page array, unless running on Quark, in which case we pass the capsule header copy as before. Reported-by: Ge Song <ge.song@hxt-semitech.com> Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Tested-by: Ge Song <ge.song@hxt-semitech.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: <stable@vger.kernel.org> Cc: Dave Young <dyoung@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Fixes: 82c3768b8d68 ("efi/capsule-loader: Use a cached copy of the capsule header") Link: http://lkml.kernel.org/r/20180102172110.17018-3-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-01-02fscache: Fix the default for fscache_maybe_release_page()David Howells
Fix the default for fscache_maybe_release_page() for when the cookie isn't valid or the page isn't cached. It mustn't return false as that indicates the page cannot yet be freed. The problem with the default is that if, say, there's no cache, but a network filesystem's pages are using up almost all the available memory, a system can OOM because the filesystem ->releasepage() op will not allow them to be released as fscache_maybe_release_page() incorrectly prevents it. This can be tested by writing a sequence of 512MiB files to an AFS mount. It does not affect NFS or CIFS because both of those wrap the call in a check of PG_fscache and it shouldn't bother Ceph as that only has PG_private set whilst writeback is in progress. This might be an issue for 9P, however. Note that the pages aren't entirely stuck. Removing a file or unmounting will clear things because that uses ->invalidatepage() instead. Fixes: 201a15428bd5 ("FS-Cache: Handle pages pending storage that get evicted under OOM conditions") Reported-by: Marc Dionne <marc.dionne@auristor.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Marc Dionne <marc.dionne@auristor.com> cc: stable@vger.kernel.org # 2.6.32+
2018-01-02drm/exynos: ipp: Remove Exynos DRM IPP subsystemMarek Szyprowski
Exynos DRM IPP subsystem is in fact non-functional and frankly speaking dead-code. This patch clearly marks that Exynos DRM IPP subsystem is broken and never really functional. It will be replaced by a completely rewritten API. Exynos DRM IPP user-space API can be obsoleted for the following reasons: 1. Exynos DRM IPP user-space API can be optional in Exynos DRM, so userspace should not rely that it is always available and should have a software fallback in case it is not there. 2. The only mode which was initially semi-working was memory-to-memory image processing. The remaining modes (LCD-"writeback" and "output") were never operational due to missing code (both in mainline and even vendor kernels). 3. Exynos DRM IPP mainline user-space API compatibility for memory-to-memory got broken very early by commit 083500baefd5 ("drm: remove DRM_FORMAT_NV12MT", which removed the support for tiled formats, the main feature which made this API somehow useful on Exynos platforms (video codec that time produced only tiled frames, to implement xvideo or any other video overlay, one has to de-tile them for proper display). 4. Broken drivers. Especially once support for IOMMU has been added, it revealed that drivers don't configure DMA operations properly and in many cases operate outside the provided buffers trashing memory around. 5. Need for external patches. Although IPP user-space API has been used in some vendor kernels, but in such cases there were additional patches applied (like reverting mentioned 083500baefd5 patch) what means that those userspace apps which might use it, still won't work with the mainline kernel version. We don't have time machines, so we cannot change it, but Exynos DRM IPP extension should never have been merged to mainline in that form. Exynos IPP subsystem and user-space API will be rewritten, so remove current IPP core code and mark existing drivers as BROKEN. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2018-01-02drm/exynos/decon: Move headers from global to local placeKrzysztof Kozlowski
The DECON headers contain only defines for registers. There are no other drivers using them so this should be put locally to the Exynos DRM driver. Keeping headers local helps managing the code. Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-12-31Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "A pile of fixes for long standing issues with the timer wheel and the NOHZ code: - Prevent timer base confusion accross the nohz switch, which can cause unlocked access and data corruption - Reinitialize the stale base clock on cpu hotplug to prevent subtle side effects including rollovers on 32bit - Prevent an interrupt storm when the timer softirq is already pending caused by tick_nohz_stop_sched_tick() - Move the timer start tracepoint to a place where it actually makes sense - Add documentation to timerqueue functions as they caused confusion several times now" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timerqueue: Document return values of timerqueue_add/del() timers: Invoke timer_start_debug() where it makes sense nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick() timers: Reinitialize per cpu bases on hotplug timers: Use deferrable base independent of base::nohz_active
2017-12-31Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "A rather large update after the kaisered maintainer finally found time to handle regression reports. - The larger part addresses a regression caused by the x86 vector management rework. The reservation based model does not work reliably for MSI interrupts, if they cannot be masked (yes, yet another hw engineering trainwreck). The reason is that the reservation mode assigns a dummy vector when the interrupt is allocated and switches to a real vector when the interrupt is requested. If the MSI entry cannot be masked then the initialization might raise an interrupt before the interrupt is requested, which ends up as spurious interrupt and causes device malfunction and worse. The fix is to exclude MSI interrupts which do not support masking from reservation mode and assign a real vector right away. - Extend the extra lockdep class setup for nested interrupts with a class for the recently added irq_desc::request_mutex so lockdep can differeniate and does not emit false positive warnings. - A ratelimit guard for the bad irq printout so in case a bad irq comes back immediately the system does not drown in dmesg spam" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/msi, x86/vector: Prevent reservation mode for non maskable MSI genirq/irqdomain: Rename early argument of irq_domain_activate_irq() x86/vector: Use IRQD_CAN_RESERVE flag genirq: Introduce IRQD_CAN_RESERVE flag genirq/msi: Handle reactivation only on success gpio: brcmstb: Make really use of the new lockdep class genirq: Guard handle_bad_irq log messages kernel/irq: Extend lockdep class for request mutex
2017-12-29Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 page table isolation updates from Thomas Gleixner: "This is the final set of enabling page table isolation on x86: - Infrastructure patches for handling the extra page tables. - Patches which map the various bits and pieces which are required to get in and out of user space into the user space visible page tables. - The required changes to have CR3 switching in the entry/exit code. - Optimizations for the CR3 switching along with documentation how the ASID/PCID mechanism works. - Updates to dump pagetables to cover the user space page tables for W+X scans and extra debugfs files to analyze both the kernel and the user space visible page tables The whole functionality is compile time controlled via a config switch and can be turned on/off on the command line as well" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) x86/ldt: Make the LDT mapping RO x86/mm/dump_pagetables: Allow dumping current pagetables x86/mm/dump_pagetables: Check user space page table for WX pages x86/mm/dump_pagetables: Add page table directory to the debugfs VFS hierarchy x86/mm/pti: Add Kconfig x86/dumpstack: Indicate in Oops whether PTI is configured and enabled x86/mm: Clarify the whole ASID/kernel PCID/user PCID naming x86/mm: Use INVPCID for __native_flush_tlb_single() x86/mm: Optimize RESTORE_CR3 x86/mm: Use/Fix PCID to optimize user/kernel switches x86/mm: Abstract switching CR3 x86/mm: Allow flushing for future ASID switches x86/pti: Map the vsyscall page if needed x86/pti: Put the LDT in its own PGD if PTI is on x86/mm/64: Make a full PGD-entry size hole in the memory map x86/events/intel/ds: Map debug buffers in cpu_entry_area x86/cpu_entry_area: Add debugstore entries to cpu_entry_area x86/mm/pti: Map ESPFIX into user space x86/mm/pti: Share entry text PMD x86/entry: Align entry text section to PMD boundary ...
2017-12-29timers: Reinitialize per cpu bases on hotplugThomas Gleixner
The timer wheel bases are not (re)initialized on CPU hotplug. That leaves them with a potentially stale clk and next_expiry valuem, which can cause trouble then the CPU is plugged. Add a prepare callback which forwards the clock, sets next_expiry to far in the future and reset the control flags to a known state. Set base->must_forward_clk so the first timer which is queued will try to forward the clock to current jiffies. Fixes: 500462a9de65 ("timers: Switch to a non-cascading wheel") Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1712272152200.2431@nanos
2017-12-29genirq/irqdomain: Rename early argument of irq_domain_activate_irq()Thomas Gleixner
The 'early' argument of irq_domain_activate_irq() is actually used to denote reservation mode. To avoid confusion, rename it before abuse happens. No functional change. Fixes: 72491643469a ("genirq/irqdomain: Update irq_domain_ops.activate() signature") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexandru Chirvasitu <achirvasub@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Dou Liyang <douly.fnst@cn.fujitsu.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Mikael Pettersson <mikpelinux@gmail.com> Cc: Josh Poulson <jopoulso@microsoft.com> Cc: Mihai Costache <v-micos@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-pci@vger.kernel.org Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Dexuan Cui <decui@microsoft.com> Cc: Simon Xiao <sixiao@microsoft.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Jork Loeser <Jork.Loeser@microsoft.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: devel@linuxdriverproject.org Cc: KY Srinivasan <kys@microsoft.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Sakari Ailus <sakari.ailus@intel.com>, Cc: linux-media@vger.kernel.org
2017-12-29genirq: Introduce IRQD_CAN_RESERVE flagThomas Gleixner
Add a new flag to mark interrupts which can use reservation mode. This is going to be used in subsequent patches to disable reservation mode for a certain class of MSI devices. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Alexandru Chirvasitu <achirvasub@gmail.com> Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Dou Liyang <douly.fnst@cn.fujitsu.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Mikael Pettersson <mikpelinux@gmail.com> Cc: Josh Poulson <jopoulso@microsoft.com> Cc: Mihai Costache <v-micos@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-pci@vger.kernel.org Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Dexuan Cui <decui@microsoft.com> Cc: Simon Xiao <sixiao@microsoft.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Jork Loeser <Jork.Loeser@microsoft.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: devel@linuxdriverproject.org Cc: KY Srinivasan <kys@microsoft.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Sakari Ailus <sakari.ailus@intel.com>, Cc: linux-media@vger.kernel.org
2017-12-29Merge tag 'pm-4.15-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "This fixes a schedutil cpufreq governor regression from the 4.14 cycle that may cause a CPU idleness check to return incorrect results in some cases which leads to suboptimal decisions (Joel Fernandes)" * tag 'pm-4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: schedutil: Use idle_calls counter of the remote CPU
2017-12-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) IPv6 gre tunnels end up with different default features enabled depending upon whether netlink or ioctls are used to bring them up. Fix from Alexey Kodanev. 2) Fix read past end of user control message in RDS< from Avinash Repaka. 3) Missing RCU barrier in mini qdisc code, from Cong Wang. 4) Missing policy put when reusing per-cpu route entries, from Florian Westphal. 5) Handle nested PCI errors properly in bnx2x driver, from Guilherme G. Piccoli. 6) Run nested transport mode IPSEC packets via tasklet, from Herbert Xu. 7) Fix handling poll() for stream sockets in tipc, from Parthasarathy Bhuvaragan. 8) Fix two stack-out-of-bounds issues in IPSEC, from Steffen Klassert. 9) Another zerocopy ubuf handling fix, from Willem de Bruijn. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits) strparser: Call sock_owned_by_user_nocheck sock: Add sock_owned_by_user_nocheck skbuff: in skb_copy_ubufs unclone before releasing zerocopy tipc: fix hanging poll() for stream sockets sctp: Replace use of sockets_allocated with specified macro. bnx2x: Improve reliability in case of nested PCI errors tg3: Enable PHY reset in MTU change path for 5720 tg3: Add workaround to restrict 5762 MRRS to 2048 tg3: Update copyright net: fec: unmap the xmit buffer that are not transferred by DMA tipc: fix tipc_mon_delete() oops in tipc_enable_bearer() error path tipc: error path leak fixes in tipc_enable_bearer() RDS: Check cmsg_len before dereferencing CMSG_DATA tcp: Avoid preprocessor directives in tracepoint macro args tipc: fix memory leak of group member when peer node is lost net: sched: fix possible null pointer deref in tcf_block_put tipc: base group replicast ack counter on number of actual receivers net_sched: fix a missing rcu barrier in mini_qdisc_pair_swap() net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround ip6_gre: fix device features for ioctl setup ...
2017-12-28Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma fixes from Jason Gunthorpe: "This is the next batch of for-rc patches from RDMA. It includes the fix for the ipoib regression I mentioned last time, and the result of a fairly major debugging effort to get iser working reliably on cxgb4 hardware - it turns out the cxgb4 driver was not handling QP error flushing properly causing iser to fail. - cxgb4 fix for an iser testing failure as debugged by Steve and Sagi. The problem was a driver bug in the handling of shutting down a QP. - Various vmw_pvrdma fixes for bogus WARN_ON, missed resource free on error unwind and a use after free bug - Improper congestion counter values on mlx5 when link aggregation is enabled - ipoib lockdep regression introduced in this merge window - hfi1 regression supporting the device in a VM introduced in a recent patch - Typo that breaks future uAPI compatibility in the verbs core - More SELinux related oops fixing - Fix an oops during error unwind in mlx5" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/mlx5: Fix mlx5_ib_alloc_mr error flow IB/core: Verify that QP is security enabled in create and destroy IB/uverbs: Fix command checking as part of ib_uverbs_ex_modify_qp() IB/mlx5: Serialize access to the VMA list IB/hfi: Only read capability registers if the capability exists IB/ipoib: Fix lockdep issue found on ipoib_ib_dev_heavy_flush IB/mlx5: Fix congestion counters in LAG mode RDMA/vmw_pvrdma: Avoid use after free due to QP/CQ/SRQ destroy RDMA/vmw_pvrdma: Use refcount_dec_and_test to avoid warning RDMA/vmw_pvrdma: Call ib_umem_release on destroy QP path iw_cxgb4: when flushing, complete all wrs in a chain iw_cxgb4: reflect the original WR opcode in drain cqes iw_cxgb4: Only validate the MSN for successful completions
2017-12-28sock: Add sock_owned_by_user_nocheckTom Herbert
This allows checking socket lock ownership with producing lockdep warnings. Signed-off-by: Tom Herbert <tom@quantonium.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-28drm/ttm: enable swapout for reserved BOs during allocationRoger He
if the bo shares same reservation object then not lock it again at swapout time to make it possible to swap out. v2: refine the commmit message Reviewed-by: Thomas Hellström <thellstrom@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chuming Zhou <david1.zhou@amd.com> Signed-off-by: Roger He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-28drm/ttm: use an operation ctx for ttm_tt_bindRoger He
forward the operation context to ttm_tt_bind as well, and the ultimate goal is swapout enablement for reserved BOs. v2: use common term rather than amd specific Reviewed-by: Thomas Hellström <thellstrom@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chuming Zhou <david1.zhou@amd.com> Signed-off-by: Roger He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-28drm/ttm: use an operation ctx for ttm_tt_populate in ttm_bo_driver (v2)Roger He
forward the operation context to ttm_tt_populate as well, and the ultimate goal is swapout enablement for reserved BOs. v2: squash in fix for vboxvideo Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Roger He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-28cpufreq: schedutil: Use idle_calls counter of the remote CPUJoel Fernandes
Since the recent remote cpufreq callback work, its possible that a cpufreq update is triggered from a remote CPU. For single policies however, the current code uses the local CPU when trying to determine if the remote sg_cpu entered idle or is busy. This is incorrect. To remedy this, compare with the nohz tick idle_calls counter of the remote CPU. Fixes: 674e75411fc2 (sched: cpufreq: Allow remote cpufreq callbacks) Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Joel Fernandes <joelaf@google.com> Cc: 4.14+ <stable@vger.kernel.org> # 4.14+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-28kernel/irq: Extend lockdep class for request mutexAndrew Lunn
The IRQ code already has support for lockdep class for the lock mutex in an interrupt descriptor. Extend this to add a second class for the request mutex in the descriptor. Not having a class is resulting in false positive splats in some code paths. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: linus.walleij@linaro.org Cc: grygorii.strashko@ti.com Cc: f.fainelli@gmail.com Link: https://lkml.kernel.org/r/1512234664-21555-1-git-send-email-andrew@lunn.ch