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2015-05-28Merge branch 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie4-24/+20
into drm-fixes one revert, and two regression fixes for audio/hdmi * 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux: drm/radeon/audio: make sure connector is valid in hotplug case Revert "drm/radeon: only mark audio as connected if the monitor supports it (v3)" drm/radeon: don't share plls if monitors differ in audio support
2015-05-28PCI / ACPI: Do not set ACPI companions for host bridges with parentsRafael J. Wysocki2-6/+20
Commit 97badf873ab6 (device property: Make it possible to use secondary firmware nodes) uncovered a bug in the x86 (and ia64) PCI host bridge initialization code that assumes bridge->bus->sysdata to always point to a struct pci_sysdata object which need not be the case (in particular, the Xen PCI frontend driver sets it to point to a different data type). If it is not the case, an incorrect pointer (or a piece of data that is not a pointer at all) will be passed to ACPI_COMPANION_SET() and that may cause interesting breakage to happen going forward. To work around this problem use the observation that the ACPI host bridge initialization always passes NULL as parent to pci_create_root_bus(), so if pcibios_root_bridge_prepare() sees a non-NULL parent of the bridge, it should not attempt to set an ACPI companion for it, because that means that pci_create_root_bus() has been called by someone else. Fixes: 97badf873ab6 (device property: Make it possible to use secondary firmware nodes) Reported-and-tested-by: Sander Eikelenboom <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Acked-by: Bjorn Helgaas <[email protected]>
2015-05-27tools/power turbostat: update version number to 4.7Len Brown1-1/+1
Signed-off-by: Len Brown <[email protected]>
2015-05-27tools/power turbostat: allow running without cpu0Prarit Bhargava1-15/+31
Linux-3.7 added CONFIG_BOOTPARAM_HOTPLUG_CPU0, allowing systems to offline cpu0. But when cpu0 is offline, turbostat will not run: # turbostat ls turbostat: no /dev/cpu/0/msr This patch replaces the hard-coded use of cpu0 in turbostat with the current cpu, allowing it to run without a cpu0. Fewer cross-calls may also be needed due to use of current cpu, though this hard-coding was used only for the --debug preamble. Signed-off-by: Prarit Bhargava <[email protected]> Signed-off-by: Len Brown <[email protected]>
2015-05-27tools/power turbostat: correctly decode of ENERGY_PERFORMANCE_BIASLen Brown1-1/+1
When EPB is 0xF, turbosat was incorrectly describing it as "custom" instead of calling it "powersave": < cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x0000000f (custom) > cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x0000000f (powersave) Signed-off-by: Len Brown <[email protected]>
2015-05-27tools/power turbostat: enable turbostat to support Knights Landing (KNL)Dasaratharaman Chandramouli2-4/+102
Changes mainly to account for minor differences in Knights Landing(KNL): 1. KNL supports C1 and C6 core states. 2. KNL supports PC2, PC3 and PC6 package states. 3. KNL has a different encoding of the TURBO_RATIO_LIMIT MSR Signed-off-by: Dasaratharaman Chandramouli <[email protected]> Signed-off-by: Len Brown <[email protected]>
2015-05-27dm: requeue from blk-mq dm_mq_queue_rq() using BLK_MQ_RQ_QUEUE_BUSYMike Snitzer1-4/+6
Use BLK_MQ_RQ_QUEUE_BUSY to requeue a blk-mq request directly from the DM blk-mq device's .queue_rq. This cleans up the previous convoluted handling of request requeueing that would return BLK_MQ_RQ_QUEUE_OK (even though it wasn't) and then run blk_mq_requeue_request() followed by blk_mq_kick_requeue_list(). Also, document that DM blk-mq ontop of old request_fn devices cannot fail in clone_rq() since the clone request is preallocated as part of the pdu. Reported-by: Christoph Hellwig <[email protected]> Signed-off-by: Mike Snitzer <[email protected]>
2015-05-27dm mpath: fix leak of dm_mpath_io structure in blk-mq .queue_rq error pathMike Snitzer1-1/+3
Otherwise kmemleak reported: unreferenced object 0xffff88009b14e2b0 (size 16): comm "fio", pid 4274, jiffies 4294978034 (age 1253.210s) hex dump (first 16 bytes): 40 12 f3 99 01 88 ff ff 00 10 00 00 00 00 00 00 @............... backtrace: [<ffffffff81600029>] kmemleak_alloc+0x49/0xb0 [<ffffffff811679a8>] kmem_cache_alloc+0xf8/0x160 [<ffffffff8111c950>] mempool_alloc_slab+0x10/0x20 [<ffffffff8111cb37>] mempool_alloc+0x57/0x150 [<ffffffffa04d2b61>] __multipath_map.isra.17+0xe1/0x220 [dm_multipath] [<ffffffffa04d2cb5>] multipath_clone_and_map+0x15/0x20 [dm_multipath] [<ffffffffa02889b5>] map_request.isra.39+0xd5/0x220 [dm_mod] [<ffffffffa028b0e4>] dm_mq_queue_rq+0x134/0x240 [dm_mod] [<ffffffff812cccb5>] __blk_mq_run_hw_queue+0x1d5/0x380 [<ffffffff812ccaa5>] blk_mq_run_hw_queue+0xc5/0x100 [<ffffffff812ce350>] blk_sq_make_request+0x240/0x300 [<ffffffff812c0f30>] generic_make_request+0xc0/0x110 [<ffffffff812c0ff2>] submit_bio+0x72/0x150 [<ffffffff811c07cb>] do_blockdev_direct_IO+0x1f3b/0x2da0 [<ffffffff811c166e>] __blockdev_direct_IO+0x3e/0x40 [<ffffffff8120aa1a>] ext4_direct_IO+0x1aa/0x390 Fixes: e5863d9ad ("dm: allocate requests in target when stacking on blk-mq devices") Reported-by: Bart Van Assche <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> Cc: [email protected] # 4.0+
2015-05-27tools/power turbostat: correctly display more than 2 threads/coreDasaratharaman Chandramouli1-20/+51
Without this update, turbostat displays only 2 threads per core. Some processors, such as Xeon Phi, have more. Signed-off-by: Dasaratharaman Chandramouli <[email protected]> Signed-off-by: Len Brown <[email protected]>
2015-05-27Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds13-74/+194
Pull cifs fixes from Steve French: "Back from SambaXP - now have 8 small CIFS bug fixes to merge" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Fix race condition on RFC1002_NEGATIVE_SESSION_RESPONSE Fix to convert SURROGATE PAIR cifs: potential missing check for posix_lock_file_wait Fix to check Unique id and FileType when client refer file directly. CIFS: remove an unneeded NULL check [cifs] fix null pointer check Fix that several functions handle incorrect value of mapchars cifs: Don't replace dentries for dfs mounts
2015-05-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds37-170/+351
Pull networking fixes from David Miller: 1) Don't use MMIO on certain iwlwifi devices otherwise we get a firmware crash. 2) Don't corrupt the GRO lists of mac80211 contexts by doing sends via timer interrupt, from Johannes Berg. 3) SKB tailroom is miscalculated in AP_VLAN crypto code, from Michal Kazior. 4) Fix fw_status memory leak in iwlwifi, from Haim Dreyfuss. 5) Fix use after free in iwl_mvm_d0i3_enable_tx(), from Eliad Peller. 6) JIT'ing of large BPF programs is broken on x86, from Alexei Starovoitov. 7) EMAC driver ethtool register dump size is miscalculated, from Ivan Mikhaylov. 8) Fix PHY initial link mode when autonegotiation is disabled in amd-xgbe, from Tom Lendacky. 9) Fix NULL deref on SOCK_DEAD socket in AF_UNIX and CAIF protocols, from Mark Salyzyn. 10) credit_bytes not initialized properly in xen-netback, from Ross Lagerwall. 11) Fallback from MSI-X to INTx interrupts not handled properly in mlx4 driver, fix from Benjamin Poirier. 12) Perform ->attach() after binding dev->qdisc in packet scheduler, otherwise we can crash. From Cong WANG. 13) Don't clobber data in sctp_v4_map_v6(). From Jason Gunthorpe. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits) sctp: Fix mangled IPv4 addresses on a IPv6 listening socket net_sched: invoke ->attach() after setting dev->qdisc xen-netfront: properly destroy queues when removing device mlx4_core: Fix fallback from MSI-X to INTx xen/netback: Properly initialize credit_bytes net: netxen: correct sysfs bin attribute return code tools: bpf_jit_disasm: fix segfault on disabled debugging log output unix/caif: sk_socket can disappear when state is unlocked amd-xgbe-phy: Fix initial mode when autoneg is disabled net: dp83640: fix improper double spin locking. net: dp83640: reinforce locking rules. net: dp83640: fix broken calibration routine. net: stmmac: create one debugfs dir per net-device net/ibm/emac: fix size of emac dump memory areas x86: bpf_jit: fix compilation of large bpf programs net: phy: bcm7xxx: Fix 7425 PHY ID and flags iwlwifi: mvm: avoid use-after-free on iwl_mvm_d0i3_enable_tx() iwlwifi: mvm: clean net-detect info if device was reset during suspend iwlwifi: mvm: take the UCODE_DOWN reference when resuming iwlwifi: mvm: BT Coex - duplicate the command if sent ASYNC ...
2015-05-27ALSA: hda - Disable power_save_node for IDT92HD71bxxTakashi Iwai1-1/+2
We've got a regression report that 4.1-rc causes noises on a Dell laptop. Similar like Realtek codec, this seems also triggered by the recent power_save_node feature. As this kind of issue is quite hard to debug without actual hardware, disable the power_save_node flag for this codec as a workaround. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=98971 Signed-off-by: Takashi Iwai <[email protected]>
2015-05-27sctp: Fix mangled IPv4 addresses on a IPv6 listening socketJason Gunthorpe1-2/+5
sctp_v4_map_v6 was subtly writing and reading from members of a union in a way the clobbered data it needed to read before it read it. Zeroing the v6 flowinfo overwrites the v4 sin_addr with 0, meaning that every place that calls sctp_v4_map_v6 gets ::ffff:0.0.0.0 as the result. Reorder things to guarantee correct behaviour no matter what the union layout is. This impacts user space clients that open an IPv6 SCTP socket and receive IPv4 connections. Prior to 299ee user space would see a sockaddr with AF_INET and a correct address, after 299ee the sockaddr is AF_INET6, but the address is wrong. Fixes: 299ee123e198 (sctp: Fixup v4mapped behaviour to comply with Sock API) Signed-off-by: Jason Gunthorpe <[email protected]> Acked-by: Daniel Borkmann <[email protected]> Acked-by: Neil Horman <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-27net_sched: invoke ->attach() after setting dev->qdiscWANG Cong1-4/+6
For mq qdisc, we add per tx queue qdisc to root qdisc for display purpose, however, that happens too early, before the new dev->qdisc is finally set, this causes q->list points to an old root qdisc which is going to be freed right before assigning with a new one. Fix this by moving ->attach() after setting dev->qdisc. For the record, this fixes the following crash: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 975 at lib/list_debug.c:59 __list_del_entry+0x5a/0x98() list_del corruption. prev->next should be ffff8800d1998ae8, but was 6b6b6b6b6b6b6b6b CPU: 1 PID: 975 Comm: tc Not tainted 4.1.0-rc4+ #1019 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 0000000000000009 ffff8800d73fb928 ffffffff81a44e7f 0000000047574756 ffff8800d73fb978 ffff8800d73fb968 ffffffff810790da ffff8800cfc4cd20 ffffffff814e725b ffff8800d1998ae8 ffffffff82381250 0000000000000000 Call Trace: [<ffffffff81a44e7f>] dump_stack+0x4c/0x65 [<ffffffff810790da>] warn_slowpath_common+0x9c/0xb6 [<ffffffff814e725b>] ? __list_del_entry+0x5a/0x98 [<ffffffff81079162>] warn_slowpath_fmt+0x46/0x48 [<ffffffff81820eb0>] ? dev_graft_qdisc+0x5e/0x6a [<ffffffff814e725b>] __list_del_entry+0x5a/0x98 [<ffffffff814e72a7>] list_del+0xe/0x2d [<ffffffff81822f05>] qdisc_list_del+0x1e/0x20 [<ffffffff81820cd1>] qdisc_destroy+0x30/0xd6 [<ffffffff81822676>] qdisc_graft+0x11d/0x243 [<ffffffff818233c1>] tc_get_qdisc+0x1a6/0x1d4 [<ffffffff810b5eaf>] ? mark_lock+0x2e/0x226 [<ffffffff817ff8f5>] rtnetlink_rcv_msg+0x181/0x194 [<ffffffff817ff72e>] ? rtnl_lock+0x17/0x19 [<ffffffff817ff72e>] ? rtnl_lock+0x17/0x19 [<ffffffff817ff774>] ? __rtnl_unlock+0x17/0x17 [<ffffffff81855dc6>] netlink_rcv_skb+0x4d/0x93 [<ffffffff817ff756>] rtnetlink_rcv+0x26/0x2d [<ffffffff818544b2>] netlink_unicast+0xcb/0x150 [<ffffffff81161db9>] ? might_fault+0x59/0xa9 [<ffffffff81854f78>] netlink_sendmsg+0x4fa/0x51c [<ffffffff817d6e09>] sock_sendmsg_nosec+0x12/0x1d [<ffffffff817d8967>] sock_sendmsg+0x29/0x2e [<ffffffff817d8cf3>] ___sys_sendmsg+0x1b4/0x23a [<ffffffff8100a1b8>] ? native_sched_clock+0x35/0x37 [<ffffffff810a1d83>] ? sched_clock_local+0x12/0x72 [<ffffffff810a1fd4>] ? sched_clock_cpu+0x9e/0xb7 [<ffffffff810def2a>] ? current_kernel_time+0xe/0x32 [<ffffffff810b4bc5>] ? lock_release_holdtime.part.29+0x71/0x7f [<ffffffff810ddebf>] ? read_seqcount_begin.constprop.27+0x5f/0x76 [<ffffffff810b6292>] ? trace_hardirqs_on_caller+0x17d/0x199 [<ffffffff811b14d5>] ? __fget_light+0x50/0x78 [<ffffffff817d9808>] __sys_sendmsg+0x42/0x60 [<ffffffff817d9838>] SyS_sendmsg+0x12/0x1c [<ffffffff81a50e97>] system_call_fastpath+0x12/0x6f ---[ end trace ef29d3fb28e97ae7 ]--- For long term, we probably need to clean up the qdisc_graft() code in case it hides other bugs like this. Fixes: 95dc19299f74 ("pkt_sched: give visibility to mq slave qdiscs") Cc: Jamal Hadi Salim <[email protected]> Signed-off-by: Cong Wang <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-27xen-netfront: properly destroy queues when removing deviceDavid Vrabel1-13/+2
xennet_remove() freed the queues before freeing the netdevice which results in a use-after-free when free_netdev() tries to delete the napi instances that have already been freed. Fix this by fully destroy the queues (which includes deleting the napi instances) before freeing the netdevice. Signed-off-by: David Vrabel <[email protected]> Reviewed-by: Boris Ostrovsky <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-27Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds3-3/+21
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "This tree includes: - a fix that disables the compacted FPU XSAVE format by disabling XSAVES support: the fixes are too complex and the breakages ABI-affecting, so we want this to be quirked off in a robust way and backported, to make sure no broken kernel is exposed to the new hardware (which exposure is still very limited). - an MCE printk message fix - a documentation fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu: Disable XSAVES* support for now x86/Documentation: Update the contact email for L3 cache index disable functionality x86/mce: Fix MCE severity messages
2015-05-27Merge branch 'for-linus' of ↵Linus Torvalds20-32/+333
git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha Pull alpha updates from Matt Turner: "Please pull a small collection of patches that I've been neglecting. Probably most importantly are the patches that wire up the new syscalls needed by udev and the fix to the bootp{,z}file targets" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha: alpha: kernel: osf_sys: Set 'kts.tv_nsec' only when 'tv' has effect alpha: Wire up all missing implemented syscalls alpha: Fix bootpfile and bootpzfile make targets alpha: copy_thread(): rename 'arg' argument to 'kthread_arg' alpha: delete non-required instances of <linux/init.h> alpha: don't use module_init for non-modular core code smp, alpha: kill SMP single function call interrupt alpha: Remove #include <uapi/asm/types.h> from <asm/types.h> alpha: clean up unnecessary MSI/MSI-X capability find
2015-05-27drm/radeon/audio: make sure connector is valid in hotplug caseAlex Deucher1-2/+3
Avoids a crash when a monitor is hotplugged and the encoder and connector are not linked yet. bug: https://bugs.freedesktop.org/show_bug.cgi?id=90681 Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected]
2015-05-27mlx4_core: Fix fallback from MSI-X to INTxBenjamin Poirier1-2/+7
The test in mlx4_load_one() to remove MLX4_FLAG_MSI_X expects mlx4_NOP() to fail with -EBUSY. It is also necessary to avoid the reset since the device is not fully reinitialized before calling mlx4_start_hca() a second time. Note that this will also affect mlx4_test_interrupts(), the only other user of MLX4_CMD_NOP. Fixes: f5aef5a ("net/mlx4_core: Activate reset flow upon fatal command cases") Signed-off-by: Benjamin Poirier <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-27lguest: fix out-by-one error in address checking.Rusty Russell1-1/+1
This bug has been there since day 1; addresses in the top guest physical page weren't considered valid. You could map that page (the check in check_gpte() is correct), but if a guest tried to put a pagetable there we'd check that address manually when walking it, and kill the guest. Signed-off-by: Rusty Russell <[email protected]> Cc: [email protected] Signed-off-by: Linus Torvalds <[email protected]>
2015-05-27xen/netback: Properly initialize credit_bytesRoss Lagerwall1-0/+1
Commit e9ce7cb6b107 ("xen-netback: Factor queue-specific data into queue struct") introduced a regression when moving queue-specific data into the queue struct by failing to set the credit_bytes field. This prevented bandwidth limiting from working. Initialize the field as it was done before multiqueue support was added. Signed-off-by: Ross Lagerwall <[email protected]> Acked-by: Wei Liu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-27Merge branch 'overlayfs-next' of ↵Linus Torvalds3-10/+36
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull two overlayfs fixes from Miklos Szeredi: "Overlayfs rmdir() failed to check for emptiness in one case; this was introduced in 4.0. The other bug was there since day one: failure to mount if upper fs is full, which bit some OpenWRT folks" * 'overlayfs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: mount read-only if workdir can't be created ovl: don't remove non-empty opaque directory
2015-05-27Revert "drm/radeon: only mark audio as connected if the monitor supports it ↵Alex Deucher2-21/+14
(v3)" This breaks too many things. bugs: https://bugzilla.kernel.org/show_bug.cgi?id=99041 https://bugs.freedesktop.org/show_bug.cgi?id=90681 This reverts commit 0f55db36d49d45b80eff0c0a2a498766016f458b. Cc: [email protected]
2015-05-27Merge tag 'mfd-fixes-4.1' of ↵Linus Torvalds2-6/+7
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull an MFD fix from Lee Jones: "One simple fix to repair broken regulator probe() in DA9052" * tag 'mfd-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: mfd: da9052: Fix broken regulator probe
2015-05-27Merge tag 'backlight-fixes-4.1' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight fix from Lee Jones: "One simple fix to correctly handle -EPROBE_DEFER" * tag 'backlight-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: pwm: Handle EPROBE_DEFER while requesting the PWM
2015-05-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-9/+0
Pull crypto fix from Herbert Xu: "This disables the newly (4.1) added user-space AEAD interface so that we can fix issues in the underlying kernel AEAD interface. Once the new kernel AEAD interface is ready we can then reenable the user-space AEAD interface" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: algif_aead - Disable AEAD user-space for now
2015-05-27ALSA: hda - Fix noise on AMD radeon 290x controllerTakashi Iwai1-0/+2
A new AMD controller [1002:aac8] seems to need the quirk for other AMD NS HDMI stuff, otherwise it gives noisy sounds. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=99021 Cc: <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2015-05-27dm: fix NULL pointer when clone_and_map_rq returns !DM_MAPIO_REMAPPEDJunichi Nomura1-2/+2
When stacking request-based DM on blk_mq device, request cloning and remapping are done in a single call to target's clone_and_map_rq(). The clone is allocated and valid only if clone_and_map_rq() returns DM_MAPIO_REMAPPED. The "IS_ERR(clone)" check in map_request() does not cover all the !DM_MAPIO_REMAPPED cases that are possible (E.g. if underlying devices are not ready or unavailable, clone_and_map_rq() may return DM_MAPIO_REQUEUE without ever having established an ERR_PTR). Fix this by explicitly checking for a return that is not DM_MAPIO_REMAPPED in map_request(). Without this fix, DM core may call setup_clone() for a NULL clone and oops like this: BUG: unable to handle kernel NULL pointer dereference at 0000000000000068 IP: [<ffffffff81227525>] blk_rq_prep_clone+0x7d/0x137 ... CPU: 2 PID: 5793 Comm: kdmwork-253:3 Not tainted 4.0.0-nm #1 ... Call Trace: [<ffffffffa01d1c09>] map_tio_request+0xa9/0x258 [dm_mod] [<ffffffff81071de9>] kthread_worker_fn+0xfd/0x150 [<ffffffff81071cec>] ? kthread_parkme+0x24/0x24 [<ffffffff81071cec>] ? kthread_parkme+0x24/0x24 [<ffffffff81071fdd>] kthread+0xe6/0xee [<ffffffff81093a59>] ? put_lock_stats+0xe/0x20 [<ffffffff81071ef7>] ? __init_kthread_worker+0x5b/0x5b [<ffffffff814c2d98>] ret_from_fork+0x58/0x90 [<ffffffff81071ef7>] ? __init_kthread_worker+0x5b/0x5b Fixes: e5863d9ad ("dm: allocate requests in target when stacking on blk-mq devices") Reported-by: Bart Van Assche <[email protected]> Signed-off-by: Jun'ichi Nomura <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> Cc: [email protected] # 4.0+
2015-05-27mfd: da9052: Fix broken regulator probeJohan Hovold2-6/+7
Fix broken probe of da9052 regulators, which since commit b3f6c73db732 ("mfd: da9052-core: Fix platform-device id collision") use a non-deterministic platform-device id to retrieve static regulator information. Fortunately, adequate error handling was in place so probe would simply fail with an error message. Update the mfd-cell ids to be zero-based and use those to identify the cells when probing the regulator devices. Fixes: b3f6c73db732 ("mfd: da9052-core: Fix platform-device id collision") Cc: stable <[email protected]> # v3.19 Signed-off-by: Johan Hovold <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Mark Brown <[email protected]> Signed-off-by: Lee Jones <[email protected]>
2015-05-27Btrfs: sysfs: don't fail seeding for the sake of sysfs kobject issueAnand Jain1-1/+1
Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: add support to add parent for fsidAnand Jain1-2/+2
To support seed sysfs layout and represent seed fsid under the sprout we need the facility to create fsid under the specified parent. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: separate kobject and attribute creationAnand Jain2-14/+19
Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: btrfs_sysfs_remove_fsid() make it non staticAnand Jain2-1/+2
Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: make btrfs_sysfs_add_device() non staticAnand Jain1-0/+1
Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: make btrfs_sysfs_add_fsid() non staticAnand Jain2-1/+3
Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs btrfs_kobj_rm_device() pass fs_devices instead of fs_infoAnand Jain4-10/+10
since btrfs_kobj_rm_device() does nothing with fs_info Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs btrfs_kobj_add_device() pass fs_devices instead of fs_infoAnand Jain4-7/+6
btrfs_kobj_add_device() does not need fs_info any more. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: provide framework to remove all fsid sysfs kobjectAnand Jain1-1/+16
Just a helper function to clean up the sysfs fsid kobjects. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: add pointer to access fs_info from fs_devicesAnand Jain3-0/+25
adds fs_info pointer with struct btrfs_fs_devices. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: introduce btrfs_get_fs_uuids to get fs_uuidsAnand Jain2-0/+5
Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: move super_kobj and device_dir_kobj from fs_info to ↵Anand Jain4-43/+56
btrfs_fs_devices This patch will provide a framework and help to create attributes from the structure btrfs_fs_devices which are available even before fs_info is created. So by moving the parent kobject super_kobj from fs_info to btrfs_fs_devices, it will help to create attributes from the btrfs_fs_devices as well. Patches on top of this patch now will be able to create the sys/fs/btrfs/fsid kobject and attributes from btrfs_fs_devices when devices are scanned and registered to the kernel. Just to note, this does not change any of the existing btrfs sysfs external kobject names and its attributes and not even the life cycle of them. Changes are internal only. And to ensure the same, this path has been tested with various device operations and, checking and comparing the sysfs kobjects and attributes with sysfs kobject and attributes with out this patch, and they remain same. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: separate device kobject and its attribute creationAnand Jain1-6/+15
Separate device kobject and its attribute creation so that device kobject can be created from the device discovery thread. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: let default_attrs be separate from the ksetAnand Jain1-4/+8
As of now btrfs_attrs are provided using the default_attrs through the kset. Separate them and create the default_attrs using the sysfs_create_files instead. By doing this we will have the flexibility that device discovery thread could create fsid kobject. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: introduce function btrfs_sysfs_add_fsid() to create sysfs fsidAnand Jain1-1/+14
We need it in a seperate function so that it can be called from the device discovery thread as well. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: rename __btrfs_sysfs_remove_one to btrfs_sysfs_remove_fsidAnand Jain1-4/+4
Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: reorder the kobject creationsAnand Jain1-10/+13
As of now the order in which the kobjects are created at btrfs_sysfs_add_one() is.. fsid features unknown features (dynamic features) devices. Since we would move fsid and device kobject to fs_devices from fs_info structure, this patch will reorder in which the kobjects are created as below. fsid devices features unknown features (dynamic features) And hence the btrfs_sysfs_remove_one() will follow the same in reverse order. and the device kobject destroy now can be moved into the function __btrfs_sysfs_remove_one() Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfc: sysfs: fix, check if device_dir_kobj is init before destroyAnand Jain1-4/+6
Since the failure code in the btrfs_sysfs_add_one() can call btrfs_sysfs_remove_one() even before device_dir_kobj has been created we need to check if its null. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: fix, kobject pointer clean up needed after kobject releaseAnand Jain1-0/+1
The sysfs clean up self test like in the below code fails, since fs_info->device_dir_kobject still points to its stale kobject. Reseting this pointer will help to fix this. open_ctree() { ret = btrfs_sysfs_add_one(fs_info); :: + btrfs_sysfs_remove_one(fs_info); + ret = btrfs_sysfs_add_one(fs_info); + if (ret) { + pr_err("BTRFS: failed to init sysfs interface: %d\n", ret); + goto fail_block_groups; + } Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: fix, undo sysfs device linksAnand Jain1-0/+17
Theoritically need to remove the device links attributes, but since its entire device kobject was removed, so there wasn't any issue of about it. Just do it nicely. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
2015-05-27Btrfs: sysfs: fix, fs_info kobject_unregister has init_completion() twiceAnand Jain1-1/+0
kobject_unregister is to handle the release of the kobject, its completion init is being called in btrfs_sysfs_add_one(), so we don't have to do the same in the open_ctree() again. Signed-off-by: Anand Jain <[email protected]> Signed-off-by: David Sterba <[email protected]>
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