1. 02 Apr, 2020 1 commit
  2. 31 Mar, 2020 2 commits
  3. 30 Mar, 2020 2 commits
  4. 29 Mar, 2020 10 commits
    • Linus Torvalds's avatar
      Linux 5.6 · 7111951b
      Linus Torvalds authored
      7111951b
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · 570203ec
      Linus Torvalds authored
      Merge vm fixes from Andrew Morton:
       "5 fixes"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>:
        mm/sparse: fix kernel crash with pfn_section_valid check
        mm: fork: fix kernel_stack memcg stats for various stack implementations
        hugetlb_cgroup: fix illegal access to memory
        drivers/base/memory.c: indicate all memory blocks as removable
        mm/swapfile.c: move inode_lock out of claim_swapfile
      570203ec
    • Linus Torvalds's avatar
      Merge tag 'timers-urgent-2020-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ab93e984
      Linus Torvalds authored
      Pull timer fix from Thomas Gleixner:
       "A single fix for the Hyper-V clocksource driver to make sched clock
        actually return nanoseconds and not the virtual clock value which
        increments at 10e7 HZ (100ns)"
      
      * tag 'timers-urgent-2020-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        clocksource/drivers/hyper-v: Make sched clock return nanoseconds correctly
      ab93e984
    • Linus Torvalds's avatar
      Merge tag 'irq-urgent-2020-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 01af08bd
      Linus Torvalds authored
      Pull irq fix from Thomas Gleixner:
       "A single bugfix to prevent reference leaks in irq affinity notifiers"
      
      * tag 'irq-urgent-2020-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        genirq: Fix reference leaks on irq affinity notifiers
      01af08bd
    • Aneesh Kumar K.V's avatar
      mm/sparse: fix kernel crash with pfn_section_valid check · b943f045
      Aneesh Kumar K.V authored
      Fix the crash like this:
      
          BUG: Kernel NULL pointer dereference on read at 0x00000000
          Faulting instruction address: 0xc000000000c3447c
          Oops: Kernel access of bad area, sig: 11 [#1]
          LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
          CPU: 11 PID: 7519 Comm: lt-ndctl Not tainted 5.6.0-rc7-autotest #1
          ...
          NIP [c000000000c3447c] vmemmap_populated+0x98/0xc0
          LR [c000000000088354] vmemmap_free+0x144/0x320
          Call Trace:
             section_deactivate+0x220/0x240
             __remove_pages+0x118/0x170
             arch_remove_memory+0x3c/0x150
             memunmap_pages+0x1cc/0x2f0
             devm_action_release+0x30/0x50
             release_nodes+0x2f8/0x3e0
             device_release_driver_internal+0x168/0x270
             unbind_store+0x130/0x170
             drv_attr_store+0x44/0x60
             sysfs_kf_write+0x68/0x80
             kernfs_fop_write+0x100/0x290
             __vfs_write+0x3c/0x70
             vfs_write+0xcc/0x240
             ksys_write+0x7c/0x140
             system_call+0x5c/0x68
      
      The crash is due to NULL dereference at
      
      	test_bit(idx, ms->usage->subsection_map);
      
      due to ms->usage = NULL in pfn_section_valid()
      
      With commit d41e2f3b ("mm/hotplug: fix hot remove failure in
      SPARSEMEM|!VMEMMAP case") section_mem_map is set to NULL after
      depopulate_section_mem().  This was done so that pfn_page() can work
      correctly with kernel config that disables SPARSEMEM_VMEMMAP.  With that
      config pfn_to_page does
      
      	__section_mem_map_addr(__sec) + __pfn;
      
      where
      
        static inline struct page *__section_mem_map_addr(struct mem_section *section)
        {
      	unsigned long map = section->section_mem_map;
      	map &= SECTION_MAP_MASK;
      	return (struct page *)map;
        }
      
      Now with SPASEMEM_VMEMAP enabled, mem_section->usage->subsection_map is
      used to check the pfn validity (pfn_valid()).  Since section_deactivate
      release mem_section->usage if a section is fully deactivated,
      pfn_valid() check after a subsection_deactivate cause a kernel crash.
      
        static inline int pfn_valid(unsigned long pfn)
        {
        ...
      	return early_section(ms) || pfn_section_valid(ms, pfn);
        }
      
      where
      
        static inline int pfn_section_valid(struct mem_section *ms, unsigned long pfn)
        {
      	int idx = subsection_map_index(pfn);
      
      	return test_bit(idx, ms->usage->subsection_map);
        }
      
      Avoid this by clearing SECTION_HAS_MEM_MAP when mem_section->usage is
      freed.  For architectures like ppc64 where large pages are used for
      vmmemap mapping (16MB), a specific vmemmap mapping can cover multiple
      sections.  Hence before a vmemmap mapping page can be freed, the kernel
      needs to make sure there are no valid sections within that mapping.
      Clearing the section valid bit before depopulate_section_memap enables
      this.
      
      [aneesh.kumar@linux.ibm.com: add comment]
        Link: http://lkml.kernel.org/r/20200326133235.343616-1-aneesh.kumar@linux.ibm.comLink: http://lkml.kernel.org/r/20200325031914.107660-1-aneesh.kumar@linux.ibm.com
      Fixes: d41e2f3b
      
       ("mm/hotplug: fix hot remove failure in SPARSEMEM|!VMEMMAP case")
      Reported-by: default avatarSachin Sant <sachinp@linux.vnet.ibm.com>
      Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Tested-by: default avatarSachin Sant <sachinp@linux.vnet.ibm.com>
      Reviewed-by: default avatarBaoquan He <bhe@redhat.com>
      Reviewed-by: default avatarWei Yang <richard.weiyang@gmail.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Acked-by: default avatarPankaj Gupta <pankaj.gupta.linux@gmail.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Mike Rapoport <rppt@linux.ibm.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b943f045
    • Roman Gushchin's avatar
      mm: fork: fix kernel_stack memcg stats for various stack implementations · 8380ce47
      Roman Gushchin authored
      Depending on CONFIG_VMAP_STACK and the THREAD_SIZE / PAGE_SIZE ratio the
      space for task stacks can be allocated using __vmalloc_node_range(),
      alloc_pages_node() and kmem_cache_alloc_node().
      
      In the first and the second cases page->mem_cgroup pointer is set, but
      in the third it's not: memcg membership of a slab page should be
      determined using the memcg_from_slab_page() function, which looks at
      page->slab_cache->memcg_params.memcg .  In this case, using
      mod_memcg_page_state() (as in account_kernel_stack()) is incorrect:
      page->mem_cgroup pointer is NULL even for pages charged to a non-root
      memory cgroup.
      
      It can lead to kernel_stack per-memcg counters permanently showing 0 on
      some architectures (depending on the configuration).
      
      In order to fix it, let's introduce a mod_memcg_obj_state() helper,
      which takes a pointer to a kernel object as a first argument, uses
      mem_cgroup_from_obj() to get a RCU-protected memcg pointer and calls
      mod_memcg_state().  It allows to handle all possible configurations
      (CONFIG_VMAP_STACK and various THREAD_SIZE/PAGE_SIZE values) without
      spilling any memcg/kmem specifics into fork.c .
      
      Note: This is a special version of the patch created for stable
      backports.  It contains code from the following two patches:
        - mm: memcg/slab: introduce mem_cgroup_from_obj()
        - mm: fork: fix kernel_stack memcg stats for various stack implementations
      
      [guro@fb.com: introduce mem_cgroup_from_obj()]
        Link: http://lkml.kernel.org/r/20200324004221.GA36662@carbon.dhcp.thefacebook.com
      Fixes: 4d96ba35
      
       ("mm: memcg/slab: stop setting page->mem_cgroup pointer for slab pages")
      Signed-off-by: default avatarRoman Gushchin <guro@fb.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Reviewed-by: default avatarShakeel Butt <shakeelb@google.com>
      Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
      Cc: Michal Hocko <mhocko@kernel.org>
      Cc: Bharata B Rao <bharata@linux.ibm.com>
      Cc: Shakeel Butt <shakeelb@google.com>
      Cc: <stable@vger.kernel.org>
      Link: http://lkml.kernel.org/r/20200303233550.251375-1-guro@fb.com
      
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8380ce47
    • Mina Almasry's avatar
      hugetlb_cgroup: fix illegal access to memory · 726b7bbe
      Mina Almasry authored
      This appears to be a mistake in commit faced7e0 ("mm: hugetlb
      controller for cgroups v2").
      
      Essentially that commit does a hugetlb_cgroup_from_counter assuming that
      page_counter_try_charge has initialized counter.
      
      But if that has failed then it seems will not initialize counter, so
      hugetlb_cgroup_from_counter(counter) ends up pointing to random memory,
      causing kasan to complain.
      
      The solution is to simply use 'h_cg', instead of
      hugetlb_cgroup_from_counter(counter), since that is a reference to the
      hugetlb_cgroup anyway.  After this change kasan ceases to complain.
      
      Fixes: faced7e0
      
       ("mm: hugetlb controller for cgroups v2")
      Reported-by: syzbot+cac0c4e204952cf449b1@syzkaller.appspotmail.com
      Signed-off-by: default avatarMina Almasry <almasrymina@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Acked-by: default avatarGiuseppe Scrivano <gscrivan@redhat.com>
      Acked-by: default avatarTejun Heo <tj@kernel.org>
      Cc: Mike Kravetz <mike.kravetz@oracle.com>
      Cc: David Rientjes <rientjes@google.com>
      Link: http://lkml.kernel.org/r/20200313223920.124230-1-almasrymina@google.com
      
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      726b7bbe
    • David Hildenbrand's avatar
      drivers/base/memory.c: indicate all memory blocks as removable · 53cdc1cb
      David Hildenbrand authored
      We see multiple issues with the implementation/interface to compute
      whether a memory block can be offlined (exposed via
      /sys/devices/system/memory/memoryX/removable) and would like to simplify
      it (remove the implementation).
      
      1. It runs basically lockless. While this might be good for performance,
         we see possible races with memory offlining that will require at
         least some sort of locking to fix.
      
      2. Nowadays, more false positives are possible. No arch-specific checks
         are performed that validate if memory offlining will not be denied
         right away (and such check will require locking). For example, arm64
         won't allow to offline any memory block that was added during boot -
         which will imply a very high error rate. Other archs have other
         constraints.
      
      3. The interface is inherently racy. E.g., if a memory block is detected
         to be removable (and was not a false positive at that time), there is
         still no guarantee that offlining will actually succeed. So any
         caller already has to deal with false positives.
      
      4. It is unclear which performance benefit this interface actually
         provides. The introducing commit 5c755e9f ("memory-hotplug: add
         sysfs removable attribute for hotplug memory remove") mentioned
      
      	"A user-level agent must be able to identify which sections
      	 of memory are likely to be removable before attempting the
      	 potentially expensive operation."
      
         However, no actual performance comparison was included.
      
      Known users:
      
       - lsmem: Will group memory blocks based on the "removable" property. [1]
      
       - chmem: Indirect user. It has a RANGE mode where one can specify
                removable ranges identified via lsmem to be offlined. However,
                it also has a "SIZE" mode, which allows a sysadmin to skip the
                manual "identify removable blocks" step. [2]
      
       - powerpc-utils: Uses the "removable" attribute to skip some memory
                blocks right away when trying to find some to offline+remove.
                However, with ballooning enabled, it already skips this
                information completely (because it once resulted in many false
                negatives). Therefore, the implementation can deal with false
                positives properly already. [3]
      
      According to Nathan Fontenot, DLPAR on powerpc is nowadays no longer
      driven from userspace via the drmgr command (powerpc-utils).  Nowadays
      it's managed in the kernel - including onlining/offlining of memory
      blocks - triggered by drmgr writing to /sys/kernel/dlpar.  So the
      affected legacy userspace handling is only active on old kernels.  Only
      very old versions of drmgr on a new kernel (unlikely) might execute
      slower - totally acceptable.
      
      With CONFIG_MEMORY_HOTREMOVE, always indicating "removable" should not
      break any user space tool.  We implement a very bad heuristic now.
      Without CONFIG_MEMORY_HOTREMOVE we cannot offline anything, so report
      "not removable" as before.
      
      Original discussion can be found in [4] ("[PATCH RFC v1] mm:
      is_mem_section_removable() overhaul").
      
      Other users of is_mem_section_removable() will be removed next, so that
      we can remove is_mem_section_removable() completely.
      
      [1] http://man7.org/linux/man-pages/man1/lsmem.1.html
      [2] http://man7.org/linux/man-pages/man8/chmem.8.html
      [3] https://github.com/ibm-power-utilities/powerpc-utils
      [4] https://lkml.kernel.org/r/20200117105759.27905-1-david@redhat.com
      
      Also, this patch probably fixes a crash reported by Steve.
      http://lkml.kernel.org/r/CAPcyv4jpdaNvJ67SkjyUJLBnBnXXQv686BiVW042g03FUmWLXw@mail.gmail.com
      
      Reported-by: default avatar"Scargall, Steve" <steve.scargall@intel.com>
      Suggested-by: default avatarMichal Hocko <mhocko@kernel.org>
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Reviewed-by: default avatarNathan Fontenot <ndfont@gmail.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Badari Pulavarty <pbadari@us.ibm.com>
      Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Karel Zak <kzak@redhat.com>
      Cc: <stable@vger.kernel.org>
      Link: http://lkml.kernel.org/r/20200128093542.6908-1-david@redhat.com
      
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      53cdc1cb
    • Naohiro Aota's avatar
      mm/swapfile.c: move inode_lock out of claim_swapfile · d795a90e
      Naohiro Aota authored
      claim_swapfile() currently keeps the inode locked when it is successful,
      or the file is already swapfile (with -EBUSY).  And, on the other error
      cases, it does not lock the inode.
      
      This inconsistency of the lock state and return value is quite confusing
      and actually causing a bad unlock balance as below in the "bad_swap"
      section of __do_sys_swapon().
      
      This commit fixes this issue by moving the inode_lock() and IS_SWAPFILE
      check out of claim_swapfile().  The inode is unlocked in
      "bad_swap_unlock_inode" section, so that the inode is ensured to be
      unlocked at "bad_swap".  Thus, error handling codes after the locking now
      jumps to "bad_swap_unlock_inode" instead of "bad_swap".
      
          =====================================
          WARNING: bad unlock balance detected!
          5.5.0-rc7+ #176 Not tainted
          -------------------------------------
          swapon/4294 is trying to release lock (&sb->s_type->i_mutex_key) at: __do_sys_swapon+0x94b/0x3550
          but there are no more locks to release!
      
          other info that might help us debug this:
          no locks held by swapon/4294.
      
          stack backtrace:
          CPU: 5 PID: 4294 Comm: swapon Not tainted 5.5.0-rc7-BTRFS-ZNS+ #176
          Hardware name: ASUS All Series/H87-PRO, BIOS 2102 07/29/2014
          Call Trace:
           dump_stack+0xa1/0xea
           print_unlock_imbalance_bug.cold+0x114/0x123
           lock_release+0x562/0xed0
           up_write+0x2d/0x490
           __do_sys_swapon+0x94b/0x3550
           __x64_sys_swapon+0x54/0x80
           do_syscall_64+0xa4/0x4b0
           entry_SYSCALL_64_after_hwframe+0x49/0xbe
          RIP: 0033:0x7f15da0a0dc7
      
      Fixes: 1638045c
      
       ("mm: set S_SWAPFILE on blockdev swap devices")
      Signed-off-by: default avatarNaohiro Aota <naohiro.aota@wdc.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Tested-by: default avatarQais Youef <qais.yousef@arm.com>
      Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Reviewed-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
      Cc: Christoph Hellwig <hch@infradead.org>
      Cc: <stable@vger.kernel.org>
      Link: http://lkml.kernel.org/r/20200206090132.154869-1-naohiro.aota@wdc.com
      
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d795a90e
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · e595dd94
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix memory leak in vti6, from Torsten Hilbrich.
      
       2) Fix double free in xfrm_policy_timer, from YueHaibing.
      
       3) NL80211_ATTR_CHANNEL_WIDTH attribute is put with wrong type, from
          Johannes Berg.
      
       4) Wrong allocation failure check in qlcnic driver, from Xu Wang.
      
       5) Get ks8851-ml IO operations right, for real this time, from Marek
          Vasut.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (22 commits)
        r8169: fix PHY driver check on platforms w/o module softdeps
        net: ks8851-ml: Fix IO operations, again
        mlxsw: spectrum_mr: Fix list iteration in error path
        qlcnic: Fix bad kzalloc null test
        mac80211: set IEEE80211_TX_CTRL_PORT_CTRL_PROTO for nl80211 TX
        mac80211: mark station unauthorized before key removal
        mac80211: Check port authorization in the ieee80211_tx_dequeue() case
        cfg80211: Do not warn on same channel at the end of CSA
        mac80211: drop data frames without key on encrypted links
        ieee80211: fix HE SPR size calculation
        nl80211: fix NL80211_ATTR_CHANNEL_WIDTH attribute type
        xfrm: policy: Fix doulbe free in xfrm_policy_timer
        bpf: Explicitly memset some bpf info structures declared on the stack
        bpf: Explicitly memset the bpf_attr structure
        bpf: Sanitize the bpf_struct_ops tcp-cc name
        vti6: Fix memory leak of skb if input policy check fails
        esp: remove the skb from the chain when it's enqueued in cryptd_wq
        ipv6: xfrm6_tunnel.c: Use built-in RCU list checking
        xfrm: add the missing verify_sec_ctx_len check in xfrm_add_acquire
        xfrm: fix uctx len check in verify_sec_ctx_len
        ...
      e595dd94
  5. 28 Mar, 2020 4 commits
  6. 27 Mar, 2020 19 commits
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · a0ba26f3
      David S. Miller authored
      
      
      Daniel Borkmann says:
      
      ====================
      pull-request: bpf 2020-03-27
      
      The following pull-request contains BPF updates for your *net* tree.
      
      We've added 3 non-merge commits during the last 4 day(s) which contain
      a total of 4 files changed, 25 insertions(+), 20 deletions(-).
      
      The main changes are:
      
      1) Explicitly memset the bpf_attr structure on bpf() syscall to avoid
         having to rely on compiler to do so. Issues have been noticed on
         some compilers with padding and other oddities where the request was
         then unexpectedly rejected, from Greg Kroah-Hartman.
      
      2) Sanitize the bpf_struct_ops TCP congestion control name in order to
         avoid problematic characters such as whitespaces, from Martin KaFai Lau.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a0ba26f3
    • Heiner Kallweit's avatar
      r8169: fix PHY driver check on platforms w/o module softdeps · 2e8c339b
      Heiner Kallweit authored
      On Android/x86 the module loading infrastructure can't deal with
      softdeps. Therefore the check for presence of the Realtek PHY driver
      module fails. mdiobus_register() will try to load the PHY driver
      module, therefore move the check to after this call and explicitly
      check that a dedicated PHY driver is bound to the PHY device.
      
      Fixes: f3259377
      
       ("r8169: check that Realtek PHY driver module is loaded")
      Reported-by: default avatarChih-Wei Huang <cwhuang@android-x86.org>
      Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2e8c339b
    • David S. Miller's avatar
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec · e00dd941
      David S. Miller authored
      
      
      Steffen Klassert says:
      
      ====================
      pull request (net): ipsec 2020-03-27
      
      1) Handle NETDEV_UNREGISTER for xfrm device to handle asynchronous
         unregister events cleanly. From Raed Salem.
      
      2) Fix vti6 tunnel inter address family TX through bpf_redirect().
         From Nicolas Dichtel.
      
      3) Fix lenght check in verify_sec_ctx_len() to avoid a
         slab-out-of-bounds. From Xin Long.
      
      4) Add a missing verify_sec_ctx_len check in xfrm_add_acquire
         to avoid a possible out-of-bounds to access. From Xin Long.
      
      5) Use built-in RCU list checking of hlist_for_each_entry_rcu
         to silence false lockdep warning in __xfrm6_tunnel_spi_lookup
         when CONFIG_PROVE_RCU_LIST is enabled. From Madhuparna Bhowmik.
      
      6) Fix a panic on esp offload when crypto is done asynchronously.
         From Xin Long.
      
      7) Fix a skb memory leak in an error path of vti6_rcv.
         From Torsten Hilbrich.
      
      8) Fix a race that can lead to a doulbe free in xfrm_policy_timer.
         From Xin Long.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e00dd941
    • Linus Torvalds's avatar
      Merge branch 'parisc-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 69c5eea3
      Linus Torvalds authored
      Pull parsic fix from Helge Deller:
       "Fix a recursive loop when running 'make ARCH=parisc defconfig'"
      
      * 'parisc-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Fix defconfig selection
      69c5eea3
    • Linus Torvalds's avatar
      Merge tag 'arm-soc-fixes-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 32db9f10
      Linus Torvalds authored
      Pull ARM DT and driver fixes from Arnd Bergmann:
       "For the devicetree files, there are a total of 20 patches, almost
        entirely for 32-bit machines:
      
         - The Allwinner/sun9i r40 SoC dtsi file contains a number of issues,
           both for correctness and for style that are addressed in separate
           patches. This causes most of the changed lines of the DT updates
           this time.
      
         - More Allwinner updates fixing the identification of the security
           system on sun8i/A33, a recent regression of the A83t ethernet, and
           a few board specific issues on the TBS-A711 macine.
      
         - Several bug fixes for OMAP dts files, most notably fixing the
           timings for the NAND flash on the Nokia N900 that regressed a while
           ago after the move to configuring them from DT. Some other OMAPs
           now set the correct dma limits on the L3 bus, and a regression fix
           addresses lost Ethernet on dm814x
      
         - One incorrect setting in the newly added Raspberry Pi Zero W that
           may cause issues with the SD card controller.
      
         - A missing property on the bcm2835 firmware node caused incorrect
           DMA settings.
      
         - An old bug on the oxnas platform causing spurious interrupts is
           finally addressed.
      
         - A regression on the Exynos Midas board broke the OLED panel power
           supply.
      
         - The i.MX6 phycore SoM specified the wrong voltage for the SoC, this
           is now set to the values from the datasheet.
      
         - Some 64-bit machines use a deprecated string to identify the PSCI
           firmware.
      
        There are also several small code fixes addressing mostly serious
        issues:
      
         - Fix the sunxi rsb bus access to no longer return incorrect data
           when mixing 8 and 16 bit I/O.
      
         - Fix a suspend/resume regression on the OMAP2+ lcdc from a missing
           quirk in the ti-sysc driver
      
         - Fix a NULL pointer access from a race in the fsl dpio driver
      
         - Fix a v5.5 regression in the exynos-chipid driver that caused an
           invalid error code probing the device on non-exynos platforms
      
         - Fix an out-of-bounds access in the AMD TEE driver"
      
      * tag 'arm-soc-fixes-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
        soc: samsung: chipid: Fix return value on non-Exynos platforms
        arm64: dts: Fix leftover entry-methods for PSCI
        ARM: dts: exynos: Fix regulator node aliasing on Midas-based boards
        ARM: dts: oxnas: Fix clear-mask property
        ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations
        ARM: dts: omap5: Add bus_dma_limit for L3 bus
        ARM: dts: omap4-droid4: Fix lost touchscreen interrupts
        ARM: dts: dra7: Add bus_dma_limit for L3 bus
        ARM: bcm2835-rpi-zero-w: Add missing pinctrl name
        ARM: dts: sun8i: a33: add the new SS compatible
        dt-bindings: crypto: add new compatible for A33 SS
        ARM: dts: sun8i: r40: Move SPI device nodes based on address order
        ARM: dts: sun8i: r40: Fix register base address for SPI2 and SPI3
        ARM: dts: sun8i: r40: Move AHCI device node based on address order
        ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage
        soc: fsl: dpio: register dpio irq handlers after dpio create
        tee: amdtee: out of bounds read in find_session()
        ARM: dts: N900: fix onenand timings
        bus: ti-sysc: Fix quirk flags for lcdc on am335x
        ARM: dts: Fix dm814x Ethernet by changing to use rgmii-id mode
        ...
      32db9f10
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 823846c3
      Linus Torvalds authored
      Pull RISC-V fixes from Palmer Dabbelt:
       "Sorry for the last minute patches, but a few things fell through the
        cracks recently. I was on the fence about sending a late pull request
        just for the M-mode fixes, as we don't really have any users, but the
        last patch fixes the build for Fedora which I consider pretty
        important.
      
        Given that the M-mode fixes should be very low risk, I figured it's
        worth sending them along as well.
      
        Thhis passes my standard 'boot in QEMU' test"
      
      * tag 'riscv-for-linus-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        RISC-V: Move all address space definition macros to one place
        RISC-V: Only select essential drivers for SOC_VIRT config
        riscv: fix the IPI missing issue in nommu mode
        riscv: uaccess should be used in nommu mode
      823846c3
    • Linus Torvalds's avatar
      Merge tag 'devicetree-fixes-for-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · bb36d37e
      Linus Torvalds authored
      Pull Devicetree fix from Rob Herring:
       "A single fix for building dtc with GCC 10"
      
      * tag 'devicetree-fixes-for-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
        scripts/dtc: Remove redundant YYLOC global declaration
      bb36d37e
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 1fa8cb0b
      Linus Torvalds authored
      Pull arm64 fix from Will Deacon:
       "Fix defconfig build when using Clang's integrated assembler"
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: alternative: fix build with clang integrated assembler
      1fa8cb0b
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 527630fb
      Linus Torvalds authored
      Pull clk fixes from Stephen Boyd:
       "A handful of clk driver fixes.
      
        Mostly they're around the i.MX drivers fixing the parents of a few
        clks and making KASAN happy with how the message passing code works.
      
        Besides that we have a TI driver fix for the RTC parent and a fix for
        the basic gate type registration functions introduced this release
        where they didn't actually pass the arguments in the right places to
        the multiplexer function down below"
      
      * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
        clk: imx: Align imx sc clock parent msg structs to 4
        clk: imx: Align imx sc clock msg structs to 4
        clk: Pass correct arguments to __clk_hw_register_gate()
        clk: ti: am43xx: Fix clock parent for RTC clock
        clk: imx8mp: Correct the enet_qos parent clock
        clk: imx8mp: Correct IMX8MP_CLK_HDMI_AXI clock parent
      527630fb
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2020-03-27' of git://anongit.freedesktop.org/drm/drm · 7bf8df68
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Pretty quiet: some minor sg mapping fixes for 3 drivers, and a single
        oops fix for the scheduler. I'm hoping nobody tries to send me a fixes
        pull today but I'll keep an eye out of the weekend.
      
        radeon/amdgpu/dma-buf:
         - sg list fixes
      
        scheduler:
         - oops fix"
      
      * tag 'drm-fixes-2020-03-27' of git://anongit.freedesktop.org/drm/drm:
        drm/scheduler: fix rare NULL ptr race
        drm/radeon: fix scatter-gather mapping with user pages
        drm/amdgpu: fix scatter-gather mapping with user pages
        drm/prime: use dma length macro when mapping sg
      7bf8df68
    • Helge Deller's avatar
      parisc: Fix defconfig selection · ededa081
      Helge Deller authored
      Fix the recursive loop when running "make ARCH=parisc defconfig".
      
      Fixes: 84669923
      
       ("parisc: Regenerate parisc defconfigs")
      Noticed-by: default avatarGuenter Roeck <linux@roeck-us.net>
      Tested-by: default avatarGuenter Roeck <linux@roeck-us.net>
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      ededa081
    • Dirk Mueller's avatar
      scripts/dtc: Remove redundant YYLOC global declaration · e33a814e
      Dirk Mueller authored
      
      
      gcc 10 will default to -fno-common, which causes this error at link
      time:
      
        (.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
      
      This is because both dtc-lexer as well as dtc-parser define the same
      global symbol yyloc. Before with -fcommon those were merged into one
      defintion. The proper solution would be to to mark this as "extern",
      however that leads to:
      
        dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
         26 | extern YYLTYPE yylloc;
            |                ^~~~~~
      In file included from dtc-lexer.l:24:
      dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
        127 | extern YYLTYPE yylloc;
            |                ^~~~~~
      cc1: all warnings being treated as errors
      
      which means the declaration is completely redundant and can just be
      dropped.
      Signed-off-by: default avatarDirk Mueller <dmueller@suse.com>
      Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
      [robh: cherry-pick from upstream]
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarRob Herring <robh@kernel.org>
      e33a814e
    • Yubo Xie's avatar
      clocksource/drivers/hyper-v: Make sched clock return nanoseconds correctly · 749da8ca
      Yubo Xie authored
      The sched clock read functions return the HV clock (100ns granularity)
      without converting it to nanoseconds.
      
      Add the missing conversion.
      
      Fixes: bd00cd52
      
       ("clocksource/drivers/hyperv: Add Hyper-V specific sched clock function")
      Signed-off-by: default avatarYubo Xie <yuboxie@microsoft.com>
      Signed-off-by: default avatarTianyu Lan <Tianyu.Lan@microsoft.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Reviewed-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Cc: stable@vger.kernel.org
      Link: https://lkml.kernel.org/r/20200327021159.31429-1-Tianyu.Lan@microsoft.com
      749da8ca
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · f3e69428
      Linus Torvalds authored
      Pull input fixes from Dmitry Torokhov:
      
       - a fix to generate proper timestamps on key autorepeat events that
         were broken recently
      
       - a fix for Synaptics driver to only activate reduced reporting mode
         when explicitly requested
      
       - a new keycode for "selective screenshot" function
      
       - other assorted fixes
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: fix stale timestamp on key autorepeat events
        Input: move the new KEY_SELECTIVE_SCREENSHOT keycode
        Input: avoid BIT() macro usage in the serio.h UAPI header
        Input: synaptics-rmi4 - set reduced reporting mode only when requested
        Input: synaptics - enable RMI on HP Envy 13-ad105ng
        Input: allocate keycode for "Selective Screenshot" key
        Input: tm2-touchkey - add support for Coreriver TC360 variant
        dt-bindings: input: add Coreriver TC360 binding
        dt-bindings: vendor-prefixes: Add Coreriver vendor prefix
        Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
      f3e69428
    • Marek Vasut's avatar
      net: ks8851-ml: Fix IO operations, again · 8262e6f9
      Marek Vasut authored
      This patch reverts 58292104 ("net: ks8851-ml: Fix 16-bit IO operation")
      and edacb098 ("net: ks8851-ml: Fix 16-bit data access"), because it
      turns out these were only necessary due to buggy hardware. This patch adds
      a check for such a buggy hardware to prevent any such mistakes again.
      
      While working further on the KS8851 driver, it came to light that the
      KS8851-16MLL is capable of switching bus endianness by a hardware strap,
      EESK pin. If this strap is incorrect, the IO accesses require such endian
      swapping as is being reverted by this patch. Such swapping also impacts
      the performance significantly.
      
      Hence, in addition to removing it, detect that the hardware is broken,
      report to user, and fail to bind with such hardware.
      
      Fixes: 58292104 ("net: ks8851-ml: Fix 16-bit IO operation")
      Fixes: edacb098
      
       ("net: ks8851-ml: Fix 16-bit data access")
      Signed-off-by: default avatarMarek Vasut <marex@denx.de>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Lukas Wunner <lukas@wunner.de>
      Cc: Petr Stetiar <ynezz@true.cz>
      Cc: YueHaibing <yuehaibing@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8262e6f9
    • Dave Airlie's avatar
      Merge tag 'amd-drm-fixes-5.6-2020-03-26' of... · c4b979eb
      Dave Airlie authored
      Merge tag 'amd-drm-fixes-5.6-2020-03-26' of git://people.freedesktop.org/~agd5f/linux
      
       into drm-fixes
      
      amd-drm-fixes-5.6-2020-03-26:
      
      Scheduler:
      - Fix a race condition that could result in a segfault
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      From: Alex Deucher <alexdeucher@gmail.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20200326144538.3937-1-alexander.deucher@amd.com
      c4b979eb
    • Dave Airlie's avatar
      Merge tag 'drm-misc-fixes-2020-03-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes · 5117c363
      Dave Airlie authored
      
      
      drm-misc-fixes for v5.6:
      - SG fixes for prime, radeon and amdgpu.
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      
      From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/ef10e822-76dd-125d-ec1f-9a78c5f76bc3@linux.intel.com
      5117c363
    • Atish Patra's avatar
      RISC-V: Move all address space definition macros to one place · 2191b4f2
      Atish Patra authored
      We get the following compilation error if CONFIG_SPARSEMEM_VMEMMAP is set.
      
      ---------------------------------------------------------------
      ./arch/riscv/include/asm/pgtable-64.h: In function ‘pud_page’:
      ./include/asm-generic/memory_model.h:54:29: error: ‘vmemmap’ undeclared
      (first use in this function); did you mean ‘mem_map’?
       #define __pfn_to_page(pfn) (vmemmap + (pfn))
                                   ^~~~~~~
      ./include/asm-generic/memory_model.h:82:21: note: in expansion of
      macro ‘__pfn_to_page’
      
       #define pfn_to_page __pfn_to_page
                           ^~~~~~~~~~~~~
      ./arch/riscv/include/asm/pgtable-64.h:70:9: note: in expansion of macro
      ‘pfn_to_page’
        return pfn_to_page(pud_val(pud) >> _PAGE_PFN_SHIFT);
      ---------------------------------------------------------------
      
      Fix the compliation errors by moving all the address space definition
      macros before including pgtable-64.h.
      
      Fixes: 8ad8b727
      
       (riscv: Add KASAN support)
      Signed-off-by: default avatarAtish Patra <atish.patra@wdc.com>
      Reviewed-by: default avatarAnup Patel <anup@brainfault.org>
      Signed-off-by: default avatarPalmer Dabbelt <palmerdabbelt@google.com>
      2191b4f2
    • Dmitry Torokhov's avatar
      Input: fix stale timestamp on key autorepeat events · 4134252a
      Dmitry Torokhov authored
      We need to refresh timestamp when emitting key autorepeat events, otherwise
      they will carry timestamp of the original key press event.
      
      Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206929
      Fixes: 3b51c44b
      
       ("Input: allow drivers specify timestamp for input events")
      Cc: stable@vger.kernel.org
      Reported-by: default avatarteika kazura <teika@gmx.com>
      Tested-by: default avatarteika kazura <teika@gmx.com>
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      4134252a
  7. 26 Mar, 2020 2 commits