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2015-08-07mm/memory-failure: set PageHWPoison before migrate_pages()Naoya Horiguchi2-4/+6
Now page freeing code doesn't consider PageHWPoison as a bad page, so by setting it before completing the page containment, we can prevent the error page from being reused just after successful page migration. I added TTU_IGNORE_HWPOISON for try_to_unmap() to make sure that the page table entry is transformed into migration entry, not to hwpoison entry. Signed-off-by: Naoya Horiguchi <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Dean Nelson <[email protected]> Cc: Tony Luck <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: David Rientjes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm: check __PG_HWPOISON separately from PAGE_FLAGS_CHECK_AT_*Naoya Horiguchi4-10/+16
The race condition addressed in commit add05cecef80 ("mm: soft-offline: don't free target page in successful page migration") was not closed completely, because that can happen not only for soft-offline, but also for hard-offline. Consider that a slab page is about to be freed into buddy pool, and then an uncorrected memory error hits the page just after entering __free_one_page(), then VM_BUG_ON_PAGE(page->flags & PAGE_FLAGS_CHECK_AT_PREP) is triggered, despite the fact that it's not necessary because the data on the affected page is not consumed. To solve it, this patch drops __PG_HWPOISON from page flag checks at allocation/free time. I think it's justified because __PG_HWPOISON flags is defined to prevent the page from being reused, and setting it outside the page's alloc-free cycle is a designed behavior (not a bug.) For recent months, I was annoyed about BUG_ON when soft-offlined page remains on lru cache list for a while, which is avoided by calling put_page() instead of putback_lru_page() in page migration's success path. This means that this patch reverts a major change from commit add05cecef80 about the new refcounting rule of soft-offlined pages, so "reuse window" revives. This will be closed by a subsequent patch. Signed-off-by: Naoya Horiguchi <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Dean Nelson <[email protected]> Cc: Tony Luck <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: David Rientjes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm/memory-failure: give up error handling for non-tail-refcounted thpNaoya Horiguchi1-9/+12
"non anonymous thp" case is still racy with freeing thp, which causes panic due to put_page() for refcount-0 page. It seems that closing up this race might be hard (and/or not worth doing,) so let's give up the error handling for this case. Signed-off-by: Naoya Horiguchi <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Dean Nelson <[email protected]> Cc: Tony Luck <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: David Rientjes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm/memory-failure: fix race in counting num_poisoned_pagesNaoya Horiguchi1-2/+2
When memory_failure() is called on a page which are just freed after page migration from soft offlining, the counter num_poisoned_pages is raised twi= ce. So let's fix it with using TestSetPageHWPoison. Signed-off-by: Naoya Horiguchi <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Dean Nelson <[email protected]> Cc: Tony Luck <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: David Rientjes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm/memory-failure: unlock_page before put_pageNaoya Horiguchi1-2/+2
Recently I addressed a few of hwpoison race problems and the patches are merged on v4.2-rc1. It made progress, but unfortunately some problems still remain due to less coverage of my testing. So I'm trying to fix or avoid them in this series. One point I'm expecting to discuss is that patch 4/5 changes the page flag set to be checked on free time. In current behavior, __PG_HWPOISON is not supposed to be set when the page is freed. I think that there is no strong reason for this behavior, and it causes a problem hard to fix only in error handler side (because __PG_HWPOISON could be set at arbitrary timing.) So I suggest to change it. With this patchset, hwpoison stress testing in official mce-test testsuite (which previously failed) passes. This patch (of 5): In "just unpoisoned" path, we do put_page and then unlock_page, which is a wrong order and causes "freeing locked page" bug. So let's fix it. Signed-off-by: Naoya Horiguchi <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Dean Nelson <[email protected]> Cc: Tony Luck <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Hugh Dickins <[email protected]> Acked-by: David Rientjes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07ipc: use private shmem or hugetlbfs inodes for shm segments.Stephen Smalley3-3/+5
The shm implementation internally uses shmem or hugetlbfs inodes for shm segments. As these inodes are never directly exposed to userspace and only accessed through the shm operations which are already hooked by security modules, mark the inodes with the S_PRIVATE flag so that inode security initialization and permission checking is skipped. This was motivated by the following lockdep warning: ====================================================== [ INFO: possible circular locking dependency detected ] 4.2.0-0.rc3.git0.1.fc24.x86_64+debug #1 Tainted: G W ------------------------------------------------------- httpd/1597 is trying to acquire lock: (&ids->rwsem){+++++.}, at: shm_close+0x34/0x130 but task is already holding lock: (&mm->mmap_sem){++++++}, at: SyS_shmdt+0x4b/0x180 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&mm->mmap_sem){++++++}: lock_acquire+0xc7/0x270 __might_fault+0x7a/0xa0 filldir+0x9e/0x130 xfs_dir2_block_getdents.isra.12+0x198/0x1c0 [xfs] xfs_readdir+0x1b4/0x330 [xfs] xfs_file_readdir+0x2b/0x30 [xfs] iterate_dir+0x97/0x130 SyS_getdents+0x91/0x120 entry_SYSCALL_64_fastpath+0x12/0x76 -> #2 (&xfs_dir_ilock_class){++++.+}: lock_acquire+0xc7/0x270 down_read_nested+0x57/0xa0 xfs_ilock+0x167/0x350 [xfs] xfs_ilock_attr_map_shared+0x38/0x50 [xfs] xfs_attr_get+0xbd/0x190 [xfs] xfs_xattr_get+0x3d/0x70 [xfs] generic_getxattr+0x4f/0x70 inode_doinit_with_dentry+0x162/0x670 sb_finish_set_opts+0xd9/0x230 selinux_set_mnt_opts+0x35c/0x660 superblock_doinit+0x77/0xf0 delayed_superblock_init+0x10/0x20 iterate_supers+0xb3/0x110 selinux_complete_init+0x2f/0x40 security_load_policy+0x103/0x600 sel_write_load+0xc1/0x750 __vfs_write+0x37/0x100 vfs_write+0xa9/0x1a0 SyS_write+0x58/0xd0 entry_SYSCALL_64_fastpath+0x12/0x76 ... Signed-off-by: Stephen Smalley <[email protected]> Reported-by: Morten Stevens <[email protected]> Acked-by: Hugh Dickins <[email protected]> Acked-by: Paul Moore <[email protected]> Cc: Manfred Spraul <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Prarit Bhargava <[email protected]> Cc: Eric Paris <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm: initialize hotplugged pages as reservedMel Gorman1-1/+9
Commit 92923ca3aace ("mm: meminit: only set page reserved in the memblock region") broke memory hotplug which expects the memmap for newly added sections to be reserved until onlined by online_pages_range(). This patch marks hotplugged pages as reserved when adding new zones. Signed-off-by: Mel Gorman <[email protected]> Reported-by: David Vrabel <[email protected]> Tested-by: David Vrabel <[email protected]> Cc: Nathan Zimmer <[email protected]> Cc: Robin Holt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07ocfs2: fix shift left overflowJoseph Qi1-2/+2
When using a large volume, for example 9T volume with 2T already used, frequent creation of small files with O_DIRECT when the IO is not cluster aligned may clear sectors in the wrong place. This will cause filesystem corruption. This is because p_cpos is a u32. When calculating the corresponding sector it should be converted to u64 first, otherwise it may overflow. Signed-off-by: Joseph Qi <[email protected]> Cc: Mark Fasheh <[email protected]> Cc: Joel Becker <[email protected]> Cc: <[email protected]> [4.0+] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07kthread: export kthread functionsDavid Kershner1-0/+4
The s-Par visornic driver, currently in staging, processes a queue being serviced by the an s-Par service partition. We can get a message that something has happened with the Service Partition, when that happens, we must not access the channel until we get a message that the service partition is back again. The visornic driver has a thread for processing the channel, when we get the message, we need to be able to park the thread and then resume it when the problem clears. We can do this with kthread_park and unpark but they are not exported from the kernel, this patch exports the needed functions. Signed-off-by: David Kershner <[email protected]> Acked-by: Ingo Molnar <[email protected]> Acked-by: Neil Horman <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Tejun Heo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()Jan Kara1-5/+25
fsnotify_clear_marks_by_group_flags() can race with fsnotify_destroy_marks() so that when fsnotify_destroy_mark_locked() drops mark_mutex, a mark from the list iterated by fsnotify_clear_marks_by_group_flags() can be freed and thus the next entry pointer we have cached may become stale and we dereference free memory. Fix the problem by first moving marks to free to a special private list and then always free the first entry in the special list. This method is safe even when entries from the list can disappear once we drop the lock. Signed-off-by: Jan Kara <[email protected]> Reported-by: Ashish Sangwan <[email protected]> Reviewed-by: Ashish Sangwan <[email protected]> Cc: Lino Sanfilippo <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07lib/iommu-common.c: do not use 0xffffffffffffffffl for computing align_maskSowmini Varadhan1-1/+1
Using a 64 bit constant generates "warning: integer constant is too large for 'long' type" on 32 bit platforms. Instead use ~0ul and BITS_PER_LONG. Detected by Andrew Morton on ARMD. Signed-off-by: Sowmini Varadhan <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: David S. Miller <[email protected]> Cc: Guenter Roeck <[email protected]> Cc: Rasmus Villemoes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm/slub: allow merging when SLAB_DEBUG_FREE is setKonstantin Khlebnikov1-2/+1
This patch fixes creation of new kmem-caches after enabling sanity_checks for existing mergeable kmem-caches in runtime: before that patch creation fails because unique name in sysfs already taken by existing kmem-cache. Unlike other debug options this doesn't change object layout and could be enabled and disabled at any time. Signed-off-by: Konstantin Khlebnikov <[email protected]> Acked-by: Christoph Lameter <[email protected]> Cc: Pekka Enberg <[email protected]> Acked-by: David Rientjes <[email protected]> Cc: Joonsoo Kim <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07signalfd: fix information leak in signalfd_copyinfoAmanieu d'Antras1-2/+3
This function may copy the si_addr_lsb field to user mode when it hasn't been initialized, which can leak kernel stack data to user mode. Just checking the value of si_code is insufficient because the same si_code value is shared between multiple signals. This is solved by checking the value of si_signo in addition to si_code. Signed-off-by: Amanieu d'Antras <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07signal: fix information leak in copy_siginfo_to_userAmanieu d'Antras2-4/+8
This function may copy the si_addr_lsb, si_lower and si_upper fields to user mode when they haven't been initialized, which can leak kernel stack data to user mode. Just checking the value of si_code is insufficient because the same si_code value is shared between multiple signals. This is solved by checking the value of si_signo in addition to si_code. Signed-off-by: Amanieu d'Antras <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07signal: fix information leak in copy_siginfo_from_user32Amanieu d'Antras5-10/+2
This function can leak kernel stack data when the user siginfo_t has a positive si_code value. The top 16 bits of si_code descibe which fields in the siginfo_t union are active, but they are treated inconsistently between copy_siginfo_from_user32, copy_siginfo_to_user32 and copy_siginfo_to_user. copy_siginfo_from_user32 is called from rt_sigqueueinfo and rt_tgsigqueueinfo in which the user has full control overthe top 16 bits of si_code. This fixes the following information leaks: x86: 8 bytes leaked when sending a signal from a 32-bit process to itself. This leak grows to 16 bytes if the process uses x32. (si_code = __SI_CHLD) x86: 100 bytes leaked when sending a signal from a 32-bit process to a 64-bit process. (si_code = -1) sparc: 4 bytes leaked when sending a signal from a 32-bit process to a 64-bit process. (si_code = any) parsic and s390 have similar bugs, but they are not vulnerable because rt_[tg]sigqueueinfo have checks that prevent sending a positive si_code to a different process. These bugs are also fixed for consistency. Signed-off-by: Amanieu d'Antras <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Russell King <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Chris Metcalf <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Michael Ellerman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07ocfs2: fix BUG in ocfs2_downconvert_thread_do_work()Joseph Qi1-3/+7
The "BUG_ON(list_empty(&osb->blocked_lock_list))" in ocfs2_downconvert_thread_do_work can be triggered in the following case: ocfs2dc has firstly saved osb->blocked_lock_count to local varibale processed, and then processes the dentry lockres. During the dentry put, it calls iput and then deletes rw, inode and open lockres from blocked list in ocfs2_mark_lockres_freeing. And this causes the variable `processed' to not reflect the number of blocked lockres to be processed, which triggers the BUG. Signed-off-by: Joseph Qi <[email protected]> Cc: Mark Fasheh <[email protected]> Cc: Joel Becker <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07fs, file table: reinit files_stat.max_files after deferred memory initialisationMel Gorman5-22/+25
Dave Hansen reported the following; My laptop has been behaving strangely with 4.2-rc2. Once I log in to my X session, I start getting all kinds of strange errors from applications and see this in my dmesg: VFS: file-max limit 8192 reached The problem is that the file-max is calculated before memory is fully initialised and miscalculates how much memory the kernel is using. This patch recalculates file-max after deferred memory initialisation. Note that using memory hotplug infrastructure would not have avoided this problem as the value is not recalculated after memory hot-add. 4.1: files_stat.max_files = 6582781 4.2-rc2: files_stat.max_files = 8192 4.2-rc2 patched: files_stat.max_files = 6562467 Small differences with the patch applied and 4.1 but not enough to matter. Signed-off-by: Mel Gorman <[email protected]> Reported-by: Dave Hansen <[email protected]> Cc: Nicolai Stange <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Alex Ng <[email protected]> Cc: Fengguang Wu <[email protected]> Cc: Peter Zijlstra (Intel) <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm, meminit: replace rwsem with completionNicolai Stange1-7/+15
Commit 0e1cc95b4cc7 ("mm: meminit: finish initialisation of struct pages before basic setup") introduced a rwsem to signal completion of the initialization workers. Lockdep complains about possible recursive locking: ============================================= [ INFO: possible recursive locking detected ] 4.1.0-12802-g1dc51b8 #3 Not tainted --------------------------------------------- swapper/0/1 is trying to acquire lock: (pgdat_init_rwsem){++++.+}, at: [<ffffffff8424c7fb>] page_alloc_init_late+0xc7/0xe6 but task is already holding lock: (pgdat_init_rwsem){++++.+}, at: [<ffffffff8424c772>] page_alloc_init_late+0x3e/0xe6 Replace the rwsem by a completion together with an atomic "outstanding work counter". [[email protected]: Barrier removal on the grounds of being pointless] [[email protected]: Applied review feedback] Signed-off-by: Nicolai Stange <[email protected]> Signed-off-by: Mel Gorman <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Alex Ng <[email protected]> Cc: Fengguang Wu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07mm, meminit: allow early_pfn_to_nid to be used during runtimeMel Gorman1-8/+8
early_pfn_to_nid() historically was inherently not SMP safe but only used during boot which is inherently single threaded or during hotplug which is protected by a giant mutex. With deferred memory initialisation there was a thread-safe version introduced and the early_pfn_to_nid would trigger a BUG_ON if used unsafely. Memory hotplug hit that check. This patch makes early_pfn_to_nid introduces a lock to make it safe to use during hotplug. Signed-off-by: Mel Gorman <[email protected]> Reported-by: Alex Ng <[email protected]> Tested-by: Alex Ng <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: Nicolai Stange <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Fengguang Wu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-07ipc: modify message queue accounting to not take kernel data structures into ↵Marcus Gelderie1-5/+0
account A while back, the message queue implementation in the kernel was improved to use btrees to speed up retrieval of messages, in commit d6629859b36d ("ipc/mqueue: improve performance of send/recv"). That patch introducing the improved kernel handling of message queues (using btrees) has, as a by-product, changed the meaning of the QSIZE field in the pseudo-file created for the queue. Before, this field reflected the size of the user-data in the queue. Since, it also takes kernel data structures into account. For example, if 13 bytes of user data are in the queue, on my machine the file reports a size of 61 bytes. There was some discussion on this topic before (for example https://lkml.org/lkml/2014/10/1/115). Commenting on a th lkml, Michael Kerrisk gave the following background (https://lkml.org/lkml/2015/6/16/74): The pseudofiles in the mqueue filesystem (usually mounted at /dev/mqueue) expose fields with metadata describing a message queue. One of these fields, QSIZE, as originally implemented, showed the total number of bytes of user data in all messages in the message queue, and this feature was documented from the beginning in the mq_overview(7) page. In 3.5, some other (useful) work happened to break the user-space API in a couple of places, including the value exposed via QSIZE, which now includes a measure of kernel overhead bytes for the queue, a figure that renders QSIZE useless for its original purpose, since there's no way to deduce the number of overhead bytes consumed by the implementation. (The other user-space breakage was subsequently fixed.) This patch removes the accounting of kernel data structures in the queue. Reporting the size of these data-structures in the QSIZE field was a breaking change (see Michael's comment above). Without the QSIZE field reporting the total size of user-data in the queue, there is no way to deduce this number. It should be noted that the resource limit RLIMIT_MSGQUEUE is counted against the worst-case size of the queue (in both the old and the new implementation). Therefore, the kernel overhead accounting in QSIZE is not necessary to help the user understand the limitations RLIMIT imposes on the processes. Signed-off-by: Marcus Gelderie <[email protected]> Acked-by: Doug Ledford <[email protected]> Acked-by: Michael Kerrisk <[email protected]> Acked-by: Davidlohr Bueso <[email protected]> Cc: David Howells <[email protected]> Cc: Alexander Viro <[email protected]> Cc: John Duffy <[email protected]> Cc: Arto Bendiken <[email protected]> Cc: Manfred Spraul <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-08-06btrfs: qgroup: Fix a regression in qgroup reserved space.Qu Wenruo1-0/+5
During the change to new btrfs extent-oriented qgroup implement, due to it doesn't use the old __qgroup_excl_accounting() for exclusive extent, it didn't free the reserved bytes. The bug will cause limit function go crazy as the reserved space is never freed, increasing limit will have no effect and still cause EQOUT. The fix is easy, just free reserved bytes for newly created exclusive extent as what it does before. Reported-by: Tsutomu Itoh <[email protected]> Signed-off-by: Yang Dongsheng <[email protected]> Signed-off-by: Qu Wenruo <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2015-08-06ata: ahci_brcmstb: Fix misuse of IS_ENABLEDAxel Lin1-2/+2
While IS_ENABLED() is perfectly fine for CONFIG_* symbols, it is not for other symbols such as __BIG_ENDIAN that is provided directly by the compiler. Switch to use CONFIG_CPU_BIG_ENDIAN instead of __BIG_ENDIAN. Signed-off-by: Axel Lin <[email protected]> Acked-by: Florian Fainelli <[email protected]> Signed-off-by: Tejun Heo <[email protected]> Cc: [email protected]
2015-08-06sata_sx4: Check return code from pdc20621_i2c_read()Tomer Barletz1-4/+12
The variable spd0 might be used uninitialized when pdc20621_i2c_read() fails. This also generates a compilation warning with gcc 5.1. tj: use pr_err() Signed-off-by: Tomer Barletz <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2015-08-06drm/i915: Allow parsing of variable size child device entries from VBTDavid Weinehall1-4/+23
VBT version 196 increased the size of common_child_dev_config. The parser code assumed that the size of this structure would not change. The modified code now copies the amount needed based on the VBT version, and emits a debug message if the VBT version is unknown (too new); since the struct config block won't shrink in newer versions it should be harmless to copy the maximum known size in such cases, so that's what we do, but emitting the warning is probably sensible anyway. In the longer run it might make sense to modify the parser code to use a version/feature mapping, rather than hardcoding things like this, but for now the variants are fairly managable. This fixes a regression introduced in commit 90e4f1592bb6e82f6690f0e05a8aadcf04d7bce7 Author: Ville Syrjälä <[email protected]> Date: Wed Mar 25 18:45:58 2015 +0200 drm/i915: Fix the VBT child device parsing for BSW since we're hitting a DRM_ERROR on older platforms with this. v2: Stricter size checks Signed-off-by: David Weinehall <[email protected]> [danvet: Fixup format string.] Signed-off-by: Daniel Vetter <[email protected]>
2015-08-06Bluetooth: fix MGMT_EV_NEW_LONG_TERM_KEY eventJakub Pawlowski1-1/+1
This patch fixes how MGMT_EV_NEW_LONG_TERM_KEY event is build. Right now val vield is filled with only 1 byte, instead of whole value. This bug was introduced in commit 1fc62c526a57 ("Bluetooth: Fix exposing full value of shortened LTKs") Before that patch, if you paired with device using bluetoothd using simple pairing, and then restarted bluetoothd, you would be able to re-connect, but device would fail to establish encryption and would terminate connection. After this patch connecting after bluetoothd restart works fine. Signed-off-by: Jakub Pawlowski <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]>
2015-08-06Merge remote-tracking branches 'asoc/fix/cs4265', 'asoc/fix/intel' and ↵Mark Brown5-34/+76
'asoc/fix/topology' into asoc-linus
2015-08-06Merge remote-tracking branch 'asoc/fix/rt5645' into asoc-linusMark Brown2-0/+6
2015-08-06ASoC: topology: Add private data type and bump ABI version to 3Liam Girdwood1-2/+3
Add ID for standalone private data object types and bump ABI version to 3 in order to userpsace features. Signed-off-by: Liam Girdwood <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2015-08-06ASoC: topology: Add ops support to byte controls UAPIMengdong Lin1-3/+6
Add UAPI support for setting byte control ops. Rename the ops structure to be more generic so it can be sued by other objects too. Signed-off-by: Mengdong Lin <[email protected]> Signed-off-by: Liam Girdwood <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2015-08-06ASoC: topology: Update TLV support so we can support more TLV typesMengdong Lin2-23/+54
Currently the TLV topology structure is targeted at only supporting the DB scale data. This patch extends support for the other TLV types so they can be easily added at a later stage. TLV structure is moved to common topology control header since it's a common field for controls and can be processed in a general way. Users must set a proper access flag for a control since it's used to decide if the TLV field is valid and if a TLV callback is needed. Removed the following fields from topology TLV struct: - size/count: type can decide the size. - numid: not needed to initialize TLV for kcontrol. - data: replaced by the type specific struct. Added TLV structure to generic control header and removed TLV structure from mixer control. Signed-off-by: Mengdong Lin <[email protected]> Signed-off-by: Liam Girdwood <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2015-08-06Merge tag 'asoc-fix-v4.2-rc3' into asoc-fix-topologyMark Brown544-3013/+4296
ASoC: Fixes for v4.2 A lot of small fixes here, a few to the core: - Fix for binding DAPM stream widgets on devices with prefixes assigned to them - Minor fixes for the newly added topology interfaces - Locking and memory leak fixes for DAPM - Driver specific fixes
2015-08-06ASoC: topology: add private data to manifestVinod Koul1-0/+1
The topology file manifest should include a private data field. This allows vendors to specify vendor data in the manifest, like timestamps, hashes, additional information for removing platform configuration out of drivers and making these configurable per platform Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2015-08-06ASoC: topology: Add subsequence in topologySubhransu S. Prusty2-0/+2
Some widgets may need sorting within, So add this support in topology. Signed-off-by: Subhransu S. Prusty <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2015-08-06ARM: imx6: correct i.MX6 PCIe interrupt routingLucas Stach1-4/+4
The PCIe interrupts are also routed through the GPC. This has been missed from the conversion to stacked IRQ domains as the PCIe controller uses an explicit interrupt map and thus doesn't inherit the SoC global interrupt parent. Signed-off-by: Lucas Stach <[email protected]> Cc: <[email protected]> # 4.1 Signed-off-by: Shawn Guo <[email protected]>
2015-08-06ARM: ux500: add an SMP enablement type and move cpu nodesLinus Walleij2-26/+28
The "cpus" node cannot be inside the "soc" node, while this works for the CoreSight blocks, the early boot code will look for "cpus" directly under the root node, so this is a hard convention. So move the CPU nodes. Augment the "reg" property to match what is actually in the hardware: 0x300 and 0x301 respectively. Then add an SMP enablement type to be used by the SMP init code, "ste,dbx500-smp". Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Olof Johansson <[email protected]>
2015-08-06virtio-input: reset device and detach unused during removeJason Wang1-0/+4
Spec requires a device reset during cleanup, so do it and avoid warn in virtio core. And detach unused buffers to avoid memory leak. Signed-off-by: Jason Wang <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2015-08-05drm/amdgpu: set fw_version and feature_version for smu fw loadingJammy Zhou3-21/+30
The fw_version and feature_verion should be set correctly when the firmwares are loaded by SMU on Tonga/Carrzio/Iceland Signed-off-by: Jammy Zhou <[email protected]> Reviewed-by: Christian König <[email protected]>
2015-08-05drm/amdgpu: add feature version for SDMA ucodeJammy Zhou5-1/+5
Signed-off-by: Jammy Zhou <[email protected]> Reviewed-by: Christian König <[email protected]>
2015-08-05drm/amdgpu: add feature version for RLC and MEC v2Jammy Zhou4-5/+21
Expose feature version to user space for RLC/MEC/MEC2 ucode as well v2: fix coding style Signed-off-by: Jammy Zhou <[email protected]> Reviewed-by: Christian König <[email protected]>
2015-08-05drm/amdgpu: increment queue when iterating on this variable.Nicolas Iooss1-1/+1
gfx_v7_0_print_status contains a for loop on variable queue which does not update this variable between each iteration. This is bug is reported by clang while building allmodconfig LLVMLinux on x86_64: drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c:5126:19: error: variable 'queue' used in loop condition not modified in loop body [-Werror,-Wloop-analysis] for (queue = 0; queue < 8; i++) { ^~~~~ Fix this by incrementing variable queue instead of i in this loop. Signed-off-by: Nicolas Iooss <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2015-08-05drm/amdgpu: fix rb setting for CZAlex Deucher1-4/+1
Always set num_rbs to 2 for CZ. The 1 RB parts are often harvest configs. The will get sorted out in mesa when we program PA_SC_RASTER_CONFIG[_1]. Acked-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2015-08-05Input: twl4030-vibra - fix ERROR: Bad of_node_put() warningMarek Belisko1-1/+2
Fix following: [ 8.862274] ERROR: Bad of_node_put() on /ocp/i2c@48070000/twl@48/audio [ 8.869293] CPU: 0 PID: 1003 Comm: modprobe Not tainted 4.2.0-rc2-letux+ #1175 [ 8.876922] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 8.883514] [<c00159e0>] (unwind_backtrace) from [<c0012488>] (show_stack+0x10/0x14) [ 8.891693] [<c0012488>] (show_stack) from [<c05cb810>] (dump_stack+0x78/0x94) [ 8.899322] [<c05cb810>] (dump_stack) from [<c02cfd5c>] (kobject_release+0x68/0x7c) [ 8.907409] [<c02cfd5c>] (kobject_release) from [<bf0040c4>] (twl4030_vibra_probe+0x74/0x188 [twl4030_vibra]) [ 8.917877] [<bf0040c4>] (twl4030_vibra_probe [twl4030_vibra]) from [<c03816ac>] (platform_drv_probe+0x48/0x90) [ 8.928497] [<c03816ac>] (platform_drv_probe) from [<c037feb4>] (really_probe+0xd4/0x238) [ 8.937103] [<c037feb4>] (really_probe) from [<c0380160>] (driver_probe_device+0x30/0x48) [ 8.945678] [<c0380160>] (driver_probe_device) from [<c03801e0>] (__driver_attach+0x68/0x8c) [ 8.954589] [<c03801e0>] (__driver_attach) from [<c037ea60>] (bus_for_each_dev+0x50/0x84) [ 8.963226] [<c037ea60>] (bus_for_each_dev) from [<c037f828>] (bus_add_driver+0xcc/0x1e4) [ 8.971832] [<c037f828>] (bus_add_driver) from [<c0380b60>] (driver_register+0x9c/0xe0) [ 8.980255] [<c0380b60>] (driver_register) from [<c00097e0>] (do_one_initcall+0x100/0x1b8) [ 8.988983] [<c00097e0>] (do_one_initcall) from [<c00b8008>] (do_init_module+0x58/0x1c0) [ 8.997497] [<c00b8008>] (do_init_module) from [<c00b8cac>] (SyS_init_module+0x54/0x64) [ 9.005950] [<c00b8cac>] (SyS_init_module) from [<c000ed20>] (ret_fast_syscall+0x0/0x54) [ 9.015838] input: twl4030:vibrator as /devices/platform/68000000.ocp/48070000.i2c/i2c-0/0-0048/48070000.i2c:twl@48:audio/input/input2 node passed to of_find_node_by_name is put inside that function and new node is returned if found. Free returned node not already freed node. Signed-off-by: Marek Belisko <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2015-08-05Merge tag 'phy-for-4.2-rc6' of ↵Greg Kroah-Hartman4-6/+73
git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus Kishon writes: phy: for 4.2-rc6 *) Fix compiler error when sun4i usb phy driver is built as module *) Fix SATA Lockup issue in dra7 SoC Signed-off-by: Kishon Vijay Abraham I <[email protected]>
2015-08-05Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-6/+6
Pull KVM fixes from Paolo Bonzini: "Just two very small & simple patches" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: MTRR: Use default type for non-MTRR-covered gfn before WARN_ON KVM: s390: Fix hang VCPU hang/loop regression
2015-08-05hwmon: (g762) Export OF module alias informationJavier Martinez Canillas1-0/+1
The I2C core always reports the MODALIAS uevent as "i2c:<client name" regardless if the driver was matched using the I2C id_table or the of_match_table. So technically there's no need for a driver to export the OF table since currently it's not used. In fact, the I2C device ID table is mandatory for I2C drivers since a i2c_device_id is passed to the driver's probe function even if the I2C core used the OF table to match the driver. And since the I2C core uses different tables, OF-only drivers needs to have duplicated data that has to be kept in sync and also the dev node compatible manufacturer prefix is stripped when reporting the MODALIAS. To avoid the above, the I2C core behavior may be changed in the future to not require an I2C device table for OF-only drivers and report the OF module alias. So, it's better to also export the OF table to prevent breaking module autoloading if that happens. Signed-off-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Guenter Roeck <[email protected]>
2015-08-05hwmon: (nct7904) Export I2C module alias informationJavier Martinez Canillas1-0/+1
The I2C core always reports the MODALIAS uevent as "i2c:<client name" regardless if the driver was matched using the I2C id_table or the of_match_table. So the driver needs to export the I2C table and this be built into the module or udev won't have the necessary information to auto load the correct module when the device is added. Signed-off-by: Javier Martinez Canillas <[email protected]> Cc: [email protected] # v4.1+ Signed-off-by: Guenter Roeck <[email protected]>
2015-08-05hwmon: (dell-smm) Blacklist Dell Studio XPS 8100Pali Rohár1-1/+17
CPU fan speed going up and down on Dell Studio XPS 8100 for unknown reasons. Without further debugging on the affected machine, it is not possible to find the problem. Link: https://bugzilla.kernel.org/show_bug.cgi?id=100121 Signed-off-by: Pali Rohár <[email protected]> Tested-by: Jan C Peters <[email protected]> Cc: [email protected] # v4.0+, will need backport [groeck: cleaned up description, comments] Signed-off-by: Guenter Roeck <[email protected]>
2015-08-05ALSA: hda - one Dell machine needs the headphone white noise fixupHui Wang1-0/+1
The fixup ALC292_FIXUP_DISABLE_AAMIX can fix the white noise of the headphone on this Dell machine. Cc: <[email protected]> Signed-off-by: Hui Wang <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2015-08-05ARM: dts: dra7: Fix broken pbias device creationKishon Vijay Abraham I1-1/+1
commit <d919501feffa> ("ARM: dts: dra7: add minimal l4 bus layout with control module support") moved pbias_regulator dt node from being a child node of ocp to be the child node of scm_conf. After this device for pbias_regulator is not created. Fix it by adding "simple-bus" compatible property to scm_conf dt node. Fixes: d919501feffa ("ARM: dts: dra7: add minimal l4 bus layout with control module support") Cc: <[email protected]> # v4.1 Suggested-by: Tero Kristo <[email protected]> Signed-off-by: Kishon Vijay Abraham I <[email protected]> Tested-by: Grygorii Strashko <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2015-08-05ARM: dts: OMAP5: Fix broken pbias device creationKishon Vijay Abraham I1-1/+2
commit <ed8509edddeb> ("ARM: dts: omap5: add minimal l4 bus layout with control module support") moved pbias_regulator dt node from being a child node of ocp to be the child node of omap5_padconf_global. After this device for pbias_regulator is not created. Fix it by adding "simple-bus" compatible property to omap5_padconf_global dt node. Fixes: ed8509edddeb ("ARM: dts: omap5: add minimal l4 bus layout with control module support") Cc: <[email protected]> # v4.1 Signed-off-by: Kishon Vijay Abraham I <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>