1. 26 9月, 2017 9 次提交
    • T
      genirq/irqdomain: Propagate early activation · 42e1cc2d
      Thomas Gleixner 提交于
      Propagate the early activation mode to the irqdomain activate()
      callbacks. This is required for the upcoming reservation, late vector
      assignment scheme, so that the early activation call can act accordingly.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213153.028353660@linutronix.de
      42e1cc2d
    • T
      genirq/irqdomain: Allow irq_domain_activate_irq() to fail · bb9b428a
      Thomas Gleixner 提交于
      Allow irq_domain_activate_irq() to fail. This is required to support a
      reservation and late vector assignment scheme.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.933882227@linutronix.de
      bb9b428a
    • T
      genirq/irqdomain: Update irq_domain_ops.activate() signature · 72491643
      Thomas Gleixner 提交于
      The irq_domain_ops.activate() callback has no return value and no way to
      tell the function that the activation is early.
      
      The upcoming changes to support a reservation scheme which allows to assign
      interrupt vectors on x86 only when the interrupt is actually requested
      requires:
      
        - A return value, so activation can fail at request_irq() time
        
        - Information that the activate invocation is early, i.e. before
          request_irq().
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.848490816@linutronix.de
      72491643
    • T
      genirq: Separate activation and startup · c942cee4
      Thomas Gleixner 提交于
      Activation of an interrupt and startup are currently a combo
      functionlity. That works so far, but upcoming changes require a strict
      separation because the activation can fail in future.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.754334077@linutronix.de
      c942cee4
    • T
      genirq: Set managed shut down flag at init · 239306fe
      Thomas Gleixner 提交于
      Managed interrupts should start up in managed shutdown mode. Set the status
      flag when initialising the irq descriptor.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.669687742@linutronix.de
      239306fe
    • T
      genirq: Make state consistent for !IRQ_DOMAIN_HIERARCHY · 457f6d35
      Thomas Gleixner 提交于
      In the !IRQ_DOMAIN_HIERARCHY cas the activation stubs are not
      setting/clearing the activation status bits. This is not a problem at the
      moment, but upcoming changes require a correct status.
      
      Add the set/clear incovations to the stub functions and move them to the
      core internal header to avoid duplication and visibility outside the core.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.591985591@linutronix.de
      457f6d35
    • T
      irqdomain/debugfs: Provide domain specific debug callback · c3e7239a
      Thomas Gleixner 提交于
      Some interrupt domains like the X86 vector domain has special requirements
      for debugging, like showing the vector usage on the CPUs.
      
      Add a callback to the irqdomain ops which can be filled in by domains which
      require it and add conditional invocations to the irqdomain and the per irq
      debug files.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.512937505@linutronix.de
      c3e7239a
    • T
      genirq/msi: Capture device name for debugfs · 07557ccb
      Thomas Gleixner 提交于
      For debugging the allocation of unused or potentially leaked interrupt
      descriptor it's helpful to have some information about the site which
      allocated them. In case of MSI this is simple because the caller hands the
      device struct pointer into the domain allocation function.
      
      Duplicate the device name and show it in the debugfs entry of the interrupt
      descriptor.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.433038426@linutronix.de
      07557ccb
    • T
      genirq/debugfs: Show debug information for all irq descriptors · e0b47794
      Thomas Gleixner 提交于
      Currently the debugfs shows only information about actively used interrupts
      like /proc/irq/ does. That's fine for most cases, but not helpful when
      internals of allocated, but unused interrupt descriptors have to
      debugged. It's also useful to provide information about all descriptors so
      leaks can be debugged in a simpler way.
      
      Move the debugfs registration to the descriptor allocation code.
      Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      Tested-by: NJuergen Gross <jgross@suse.com>
      Tested-by: NYu Chen <yu.c.chen@intel.com>
      Acked-by: NJuergen Gross <jgross@suse.com>
      Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Rui Zhang <rui.zhang@intel.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: https://lkml.kernel.org/r/20170913213152.355525908@linutronix.de
      e0b47794
  2. 25 9月, 2017 9 次提交
  3. 24 9月, 2017 7 次提交
  4. 23 9月, 2017 15 次提交
    • L
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma · ded85032
      Linus Torvalds 提交于
      Pull rdma fixes from Doug Ledford:
      
       - Smattering of miscellanous fixes
      
       - A five patch series for i40iw that had a patch (5/5) that was larger
         than I would like, but I took it because it's needed for large scale
         users
      
       - An 8 patch series for bnxt_re that landed right as I was leaving on
         PTO and so had to wait until now...they are all appropriate fixes for
         -rc IMO
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (22 commits)
        bnxt_re: Don't issue cmd to delete GID for QP1 GID entry before the QP is destroyed
        bnxt_re: Fix memory leak in FRMR path
        bnxt_re: Remove RTNL lock dependency in bnxt_re_query_port
        bnxt_re: Fix race between the netdev register and unregister events
        bnxt_re: Free up devices in module_exit path
        bnxt_re: Fix compare and swap atomic operands
        bnxt_re: Stop issuing further cmds to FW once a cmd times out
        bnxt_re: Fix update of qplib_qp.mtu when modified
        i40iw: Add support for port reuse on active side connections
        i40iw: Add missing VLAN priority
        i40iw: Call i40iw_cm_disconn on modify QP to disconnect
        i40iw: Prevent multiple netdev event notifier registrations
        i40iw: Fail open if there are no available MSI-X vectors
        RDMA/vmw_pvrdma: Fix reporting correct opcodes for completion
        IB/bnxt_re: Fix frame stack compilation warning
        IB/mlx5: fix debugfs cleanup
        IB/ocrdma: fix incorrect fall-through on switch statement
        IB/ipoib: Suppress the retry related completion errors
        iw_cxgb4: remove the stid on listen create failure
        iw_cxgb4: drop listen destroy replies if no ep found
        ...
      ded85032
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 71aa60f6
      Linus Torvalds 提交于
      Pull networking fixes from David Miller:
      
       1) Fix NAPI poll list corruption in enic driver, from Christian
          Lamparter.
      
       2) Fix route use after free, from Eric Dumazet.
      
       3) Fix regression in reuseaddr handling, from Josef Bacik.
      
       4) Assert the size of control messages in compat handling since we copy
          it in from userspace twice. From Meng Xu.
      
       5) SMC layer bug fixes (missing RCU locking, bad refcounting, etc.)
          from Ursula Braun.
      
       6) Fix races in AF_PACKET fanout handling, from Willem de Bruijn.
      
       7) Don't use ARRAY_SIZE on spinlock array which might have zero
          entries, from Geert Uytterhoeven.
      
       8) Fix miscomputation of checksum in ipv6 udp code, from Subash Abhinov
          Kasiviswanathan.
      
       9) Push the ipv6 header properly in ipv6 GRE tunnel driver, from Xin
          Long.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (75 commits)
        inet: fix improper empty comparison
        net: use inet6_rcv_saddr to compare sockets
        net: set tb->fast_sk_family
        net: orphan frags on stand-alone ptype in dev_queue_xmit_nit
        MAINTAINERS: update git tree locations for ieee802154 subsystem
        net: prevent dst uses after free
        net: phy: Fix truncation of large IRQ numbers in phy_attached_print()
        net/smc: no close wait in case of process shut down
        net/smc: introduce a delay
        net/smc: terminate link group if out-of-sync is received
        net/smc: longer delay for client link group removal
        net/smc: adapt send request completion notification
        net/smc: adjust net_device refcount
        net/smc: take RCU read lock for routing cache lookup
        net/smc: add receive timeout check
        net/smc: add missing dev_put
        net: stmmac: Cocci spatch "of_table"
        lan78xx: Use default values loaded from EEPROM/OTP after reset
        lan78xx: Allow EEPROM write for less than MAX_EEPROM_SIZE
        lan78xx: Fix for eeprom read/write when device auto suspend
        ...
      71aa60f6
    • L
      Merge tag 'apparmor-pr-2017-09-22' of... · 79444df4
      Linus Torvalds 提交于
      Merge tag 'apparmor-pr-2017-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
      
      Pull apparmor updates from John Johansen:
       "This is the apparmor pull request, similar to SELinux and seccomp.
      
        It's the same series that I was sent to James' security tree + one
        regression fix that was found after the series was sent to James and
        would have been sent for v4.14-rc2.
      
        Features:
        - in preparation for secid mapping add support for absolute root view
          based labels
        - add base infastructure for socket mediation
        - add mount mediation
        - add signal mediation
      
        minor cleanups and changes:
        - be defensive, ensure unconfined profiles have dfas initialized
        - add more debug asserts to apparmorfs
        - enable policy unpacking to audit different reasons for failure
        - cleanup conditional check for label in label_print
        - Redundant condition: prev_ns. in [label.c:1498]
      
        Bug Fixes:
        - fix regression in apparmorfs DAC access permissions
        - fix build failure on sparc caused by undeclared signals
        - fix sparse report of incorrect type assignment when freeing label proxies
        - fix race condition in null profile creation
        - Fix an error code in aafs_create()
        - Fix logical error in verify_header()
        - Fix shadowed local variable in unpack_trans_table()"
      
      * tag 'apparmor-pr-2017-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
        apparmor: fix apparmorfs DAC access permissions
        apparmor: fix build failure on sparc caused by undeclared signals
        apparmor: fix incorrect type assignment when freeing proxies
        apparmor: ensure unconfined profiles have dfas initialized
        apparmor: fix race condition in null profile creation
        apparmor: move new_null_profile to after profile lookup fns()
        apparmor: add base infastructure for socket mediation
        apparmor: add more debug asserts to apparmorfs
        apparmor: make policy_unpack able to audit different info messages
        apparmor: add support for absolute root view based labels
        apparmor: cleanup conditional check for label in label_print
        apparmor: add mount mediation
        apparmor: add the ability to mediate signals
        apparmor: Redundant condition: prev_ns. in [label.c:1498]
        apparmor: Fix an error code in aafs_create()
        apparmor: Fix logical error in verify_header()
        apparmor: Fix shadowed local variable in unpack_trans_table()
      79444df4
    • J
      x86/asm: Fix inline asm call constraints for Clang · f5caf621
      Josh Poimboeuf 提交于
      For inline asm statements which have a CALL instruction, we list the
      stack pointer as a constraint to convince GCC to ensure the frame
      pointer is set up first:
      
        static inline void foo()
        {
      	register void *__sp asm(_ASM_SP);
      	asm("call bar" : "+r" (__sp))
        }
      
      Unfortunately, that pattern causes Clang to corrupt the stack pointer.
      
      The fix is easy: convert the stack pointer register variable to a global
      variable.
      
      It should be noted that the end result is different based on the GCC
      version.  With GCC 6.4, this patch has exactly the same result as
      before:
      
      	defconfig	defconfig-nofp	distro		distro-nofp
       before	9820389		9491555		8816046		8516940
       after	9820389		9491555		8816046		8516940
      
      With GCC 7.2, however, GCC's behavior has changed.  It now changes its
      behavior based on the conversion of the register variable to a global.
      That somehow convinces it to *always* set up the frame pointer before
      inserting *any* inline asm.  (Therefore, listing the variable as an
      output constraint is a no-op and is no longer necessary.)  It's a bit
      overkill, but the performance impact should be negligible.  And in fact,
      there's a nice improvement with frame pointers disabled:
      
      	defconfig	defconfig-nofp	distro		distro-nofp
       before	9796316		9468236		9076191		8790305
       after	9796957		9464267		9076381		8785949
      
      So in summary, while listing the stack pointer as an output constraint
      is no longer necessary for newer versions of GCC, it's still needed for
      older versions.
      Suggested-by: NAndrey Ryabinin <aryabinin@virtuozzo.com>
      Reported-by: NMatthias Kaehlcke <mka@chromium.org>
      Signed-off-by: NJosh Poimboeuf <jpoimboe@redhat.com>
      Cc: Alexander Potapenko <glider@google.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Link: http://lkml.kernel.org/r/3db862e970c432ae823cf515c52b54fec8270e0e.1505942196.git.jpoimboe@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      f5caf621
    • J
      objtool: Handle another GCC stack pointer adjustment bug · 0d0970ee
      Josh Poimboeuf 提交于
      The kbuild bot reported the following warning with GCC 4.4 and a
      randconfig:
      
        net/socket.o: warning: objtool: compat_sock_ioctl()+0x1083: stack state mismatch: cfa1=7+160 cfa2=-1+0
      
      This is caused by another GCC non-optimization, where it backs up and
      restores the stack pointer for no apparent reason:
      
          2f91:       48 89 e0                mov    %rsp,%rax
          2f94:       4c 89 e7                mov    %r12,%rdi
          2f97:       4c 89 f6                mov    %r14,%rsi
          2f9a:       ba 20 00 00 00          mov    $0x20,%edx
          2f9f:       48 89 c4                mov    %rax,%rsp
      
      This issue would have been happily ignored before the following commit:
      
        dd88a0a0 ("objtool: Handle GCC stack pointer adjustment bug")
      
      But now that objtool is paying attention to such stack pointer writes
      to/from a register, it needs to understand them properly.  In this case
      that means recognizing that the "mov %rsp, %rax" instruction is
      potentially a backup of the stack pointer.
      Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
      Signed-off-by: NJosh Poimboeuf <jpoimboe@redhat.com>
      Cc: Alexander Potapenko <glider@google.com>
      Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Matthias Kaehlcke <mka@chromium.org>
      Cc: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Fixes: dd88a0a0 ("objtool: Handle GCC stack pointer adjustment bug")
      Link: http://lkml.kernel.org/r/8c7aa8e9a36fbbb6655d9d8e7cea58958c912da8.1505942196.git.jpoimboe@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      0d0970ee
    • L
      Merge tag 'acpi-4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · c65da8e2
      Linus Torvalds 提交于
      Pull ACPI fixes from Rafael Wysocki:
       "These fix the initialization of resources in the ACPI WDAT watchdog
        driver, a recent regression in the ACPI device properties handling, a
        recent change in behavior causing the ACPI_HANDLE() macro to only work
        for GPL code and create a MAINTAINERS entry for ACPI PMIC drivers in
        order to specify the official reviewers for that code.
      
        Specifics:
      
         - Fix the initialization of resources in the ACPI WDAT watchdog
           driver that uses unititialized memory which causes compiler
           warnings to be triggered (Arnd Bergmann).
      
         - Fix a recent regression in the ACPI device properties handling that
           causes some device properties data to be skipped during enumeration
           (Sakari Ailus).
      
         - Fix a recent change in behavior that caused the ACPI_HANDLE() macro
           to stop working for non-GPL code which is a problem for the NVidia
           binary graphics driver, for example (John Hubbard).
      
         - Add a MAINTAINERS entry for the ACPI PMIC drivers to specify the
           official reviewers for that code (Rafael Wysocki)"
      
      * tag 'acpi-4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI: properties: Return _DSD hierarchical extension (data) sub-nodes correctly
        ACPI / bus: Make ACPI_HANDLE() work for non-GPL code again
        ACPI / watchdog: properly initialize resources
        ACPI / PMIC: Add code reviewers to MAINTAINERS
      c65da8e2
    • D
      Merge branch 'net-fix-reuseaddr-regression' · 4e683f49
      David S. Miller 提交于
      Josef Bacik says:
      
      ====================
      net: fix reuseaddr regression
      
      I introduced a regression when reworking the fastreuse port stuff that allows
      bind conflicts to occur once a reuseaddr successfully opens on an existing tb.
      The root cause is I reversed an if statement which caused us to set the tb as if
      there were no owners on the socket if there were, which obviously is not
      correct.
      
      Dave could you please queue these changes up for -stable, I've run them through
      the net tests and added another test to check for this problem specifically.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4e683f49
    • J
      inet: fix improper empty comparison · fbed24bc
      Josef Bacik 提交于
      When doing my reuseport rework I screwed up and changed a
      
      if (hlist_empty(&tb->owners))
      
      to
      
      if (!hlist_empty(&tb->owners))
      
      This is obviously bad as all of the reuseport/reuse logic was reversed,
      which caused weird problems like allowing an ipv4 bind conflict if we
      opened an ipv4 only socket on a port followed by an ipv6 only socket on
      the same port.
      
      Fixes: b9470c27 ("inet: kill smallest_size and smallest_port")
      Reported-by: NCole Robinson <crobinso@redhat.com>
      Signed-off-by: NJosef Bacik <jbacik@fb.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fbed24bc
    • J
      net: use inet6_rcv_saddr to compare sockets · 7a56673b
      Josef Bacik 提交于
      In ipv6_rcv_saddr_equal() we need to use inet6_rcv_saddr(sk) for the
      ipv6 compare with the fast socket information to make sure we're doing
      the proper comparisons.
      
      Fixes: 637bc8bb ("inet: reset tb->fastreuseport when adding a reuseport sk")
      Reported-and-tested-by: NCole Robinson <crobinso@redhat.com>
      Signed-off-by: NJosef Bacik <jbacik@fb.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7a56673b
    • J
      net: set tb->fast_sk_family · cbb2fb5c
      Josef Bacik 提交于
      We need to set the tb->fast_sk_family properly so we can use the proper
      comparison function for all subsequent reuseport bind requests.
      
      Fixes: 637bc8bb ("inet: reset tb->fastreuseport when adding a reuseport sk")
      Reported-and-tested-by: NCole Robinson <crobinso@redhat.com>
      Signed-off-by: NJosef Bacik <jbacik@fb.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      cbb2fb5c
    • W
      net: orphan frags on stand-alone ptype in dev_queue_xmit_nit · 581fe0ea
      Willem de Bruijn 提交于
      Zerocopy skbs frags are copied when the skb is looped to a local sock.
      Commit 1080e512 ("net: orphan frags on receive") introduced calls
      to skb_orphan_frags to deliver_skb and __netif_receive_skb for this.
      
      With msg_zerocopy, these skbs can also exist in the tx path and thus
      loop from dev_queue_xmit_nit. This already calls deliver_skb in its
      loop. But it does not orphan before a separate pt_prev->func().
      
      Add the missing skb_orphan_frags_rx.
      
      Changes
        v1->v2: handle skb_orphan_frags_rx failure
      
      Fixes: 1f8b977a ("sock: enable MSG_ZEROCOPY")
      Signed-off-by: NWillem de Bruijn <willemb@google.com>
      Reviewed-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      581fe0ea
    • L
      Merge tag 'pm-4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 6876eb37
      Linus Torvalds 提交于
      Pull power management fixes from Rafael Wysocki:
       "These fix a cpufreq regression introduced by recent changes related to
        the generic DT driver, an initialization time memory leak in cpuidle
        on ARM, a PM core bug that may cause system suspend/resume to fail on
        some systems, a request type validation issue in the PM QoS framework
        and two documentation-related issues.
      
        Specifics:
      
         - Fix a regression in cpufreq on systems using DT as the source of
           CPU configuration information where two different code paths
           attempt to create the cpufreq-dt device object (there can be only
           one) and fix up the "compatible" matching for some TI platforms on
           top of that (Viresh Kumar, Dave Gerlach).
      
         - Fix an initialization time memory leak in cpuidle on ARM which
           occurs if the cpuidle driver initialization fails (Stefan Wahren).
      
         - Fix a PM core function that checks whether or not there are any
           system suspend/resume callbacks for a device, but forgets to check
           legacy callbacks which then may be skipped incorrectly and the
           system may crash and/or the device may become unusable after a
           suspend-resume cycle (Rafael Wysocki).
      
         - Fix request type validation for latency tolerance PM QoS requests
           which may lead to unexpected behavior (Jan Schönherr).
      
         - Fix a broken link to PM documentation from a header file and a typo
           in a PM document (Geert Uytterhoeven, Rafael Wysocki)"
      
      * tag 'pm-4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: ti-cpufreq: Support additional am43xx platforms
        ARM: cpuidle: Avoid memleak if init fail
        cpufreq: dt-platdev: Add some missing platforms to the blacklist
        PM: core: Fix device_pm_check_callbacks()
        PM: docs: Drop an excess character from devices.rst
        PM / QoS: Use the correct variable to check the QoS request type
        driver core: Fix link to device power management documentation
      6876eb37
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · d32e5f44
      Linus Torvalds 提交于
      Pull input fixes from Dmitry Torokhov:
      
       - fixes for two long standing issues (lock up and a crash) in force
         feedback handling in uinput driver
      
       - tweak to firmware update timing in Elan I2C touchpad driver.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: elan_i2c - extend Flash-Write delay
        Input: uinput - avoid crash when sending FF request to device going away
        Input: uinput - avoid FF flush when destroying device
      d32e5f44
    • L
      Merge tag 'seccomp-v4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · c0a3a64e
      Linus Torvalds 提交于
      Pull seccomp updates from Kees Cook:
       "Major additions:
      
         - sysctl and seccomp operation to discover available actions
           (tyhicks)
      
         - new per-filter configurable logging infrastructure and sysctl
           (tyhicks)
      
         - SECCOMP_RET_LOG to log allowed syscalls (tyhicks)
      
         - SECCOMP_RET_KILL_PROCESS as the new strictest possible action
      
         - self-tests for new behaviors"
      
      [ This is the seccomp part of the security pull request during the merge
        window that was nixed due to unrelated problems   - Linus ]
      
      * tag 'seccomp-v4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        samples: Unrename SECCOMP_RET_KILL
        selftests/seccomp: Test thread vs process killing
        seccomp: Implement SECCOMP_RET_KILL_PROCESS action
        seccomp: Introduce SECCOMP_RET_KILL_PROCESS
        seccomp: Rename SECCOMP_RET_KILL to SECCOMP_RET_KILL_THREAD
        seccomp: Action to log before allowing
        seccomp: Filter flag to log all actions except SECCOMP_RET_ALLOW
        seccomp: Selftest for detection of filter flag support
        seccomp: Sysctl to configure actions that are allowed to be logged
        seccomp: Operation for checking if an action is available
        seccomp: Sysctl to display available actions
        seccomp: Provide matching filter for introspection
        selftests/seccomp: Refactor RET_ERRNO tests
        selftests/seccomp: Add simple seccomp overhead benchmark
        selftests/seccomp: Add tests for basic ptrace actions
      c0a3a64e
    • L
      Merge tag '4.14-smb3-fixes-from-recent-test-events-for-stable' of... · 69c902f5
      Linus Torvalds 提交于
      Merge tag '4.14-smb3-fixes-from-recent-test-events-for-stable' of git://git.samba.org/sfrench/cifs-2.6
      
      Pull cifs fixes from Steve French:
       "Various SMB3 fixes for stable and security improvements from the
        recently completed SMB3/Samba test events
      
      * tag '4.14-smb3-fixes-from-recent-test-events-for-stable' of git://git.samba.org/sfrench/cifs-2.6:
        SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags
        SMB3: handle new statx fields
        SMB: Validate negotiate (to protect against downgrade) even if signing off
        cifs: release auth_key.response for reconnect.
        cifs: release cifs root_cred after exit_cifs
        CIFS: make arrays static const, reduces object code size
        [SMB3] Update session and share information displayed for debugging SMB2/SMB3
        cifs: show 'soft' in the mount options for hard mounts
        SMB3: Warn user if trying to sign connection that authenticated as guest
        SMB3: Fix endian warning
        Fix SMB3.1.1 guest authentication to Samba
      69c902f5