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2016-10-13drm/amdgpu/si_dpm: Limit clocks on HD86xx partTom St Denis
Limit clocks on a specific HD86xx part to avoid crashes (while awaiting an appropriate PP fix). Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-13drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.cRex Zhu
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-13drm/amdgpu: potential NULL dereference in debugfs codeDan Carpenter
debugfs_create_file() returns NULL on error, it only returns error pointers if debugfs isn't enabled in the config and we checked for that earlier so it can't happen. Fixes: 4f4824b55650 ('drm/amd/amdgpu: Convert ring debugfs entries to binary') Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-13drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.cRex Zhu
variable dereferenced before check it Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-13drm/amd/powerplay: fix static checker warnings in iceland_smc.cRex Zhu
add array length check to avoid buffer overflow. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-13drm/radeon: change vblank_time's calculation method to reduce computational ↵Alex Deucher
error. Ported from Rex's amdgpu change. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-10-13drm/amdgpu: change vblank_time's calculation method to reduce computational ↵Rex Zhu
error. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-10-13cpufreq: CPPC: Correct desired_perf calculationHoan Tran
The desired_perf is an abstract performance number. Its value should be in the range of [lowest perf, highest perf] of CPPC. The correct calculation is desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz And cppc_cpufreq_set_target() returns if desired_perf is exactly the same with the old perf. Signed-off-by: Hoan Tran <hotran@apm.com> Reviewed-by: Prashanth Prakash <pprakash@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-13net: bridge: add the multicast_flood flag attribute to brport_attrsNikolay Aleksandrov
When I added the multicast flood control flag, I also added an attribute for it for sysfs similar to other flags, but I forgot to add it to brport_attrs. Fixes: b6cb5ac8331b ("net: bridge: add per-port multicast flood flag") Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13net: axienet: Remove unused parameter from __axienet_device_resetTobias Klauser
The dev parameter passed to __axienet_device_reset() is not used inside the function, so remove it. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Reviewed-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13liquidio: CN23XX: fix a loop timeoutDan Carpenter
This is supposed to loop 1000 times and then give up. The problem is it's a post-op and after the loop we test if "loop" is zero when really it would be -1. Fix this by making it a pre-op. Fixes: 1b7c55c4538b ("liquidio: CN23XX queue manipulation") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13net: rtnl: info leak in rtnl_fill_vfinfo()Dan Carpenter
The "vf_vlan_info" struct ends with a 2 byte struct hole so we have to memset it to ensure that no stack information is revealed to user space. Fixes: 79aab093a0b5 ('net: Update API for VF vlan protocol 802.1ad support') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13tipc: info leak in __tipc_nl_add_udp_addr()Dan Carpenter
We should clear out the padding and unused struct members so that we don't expose stack information to userspace. Fixes: fdb3accc2c15 ('tipc: add the ability to get UDP options via netlink') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13net: ipv4: Do not drop to make_route if oif is l3mdevDavid Ahern
Commit e0d56fdd7342 was a bit aggressive removing l3mdev calls in the IPv4 stack. If the fib_lookup fails we do not want to drop to make_route if the oif is an l3mdev device. Also reverts 19664c6a0009 ("net: l3mdev: Remove netif_index_is_l3_master") which removed netif_index_is_l3_master. Fixes: e0d56fdd7342 ("net: l3mdev: remove redundant calls") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13net: phy: Trigger state machine on state change and not polling.Andrew Lunn
The phy_start() is used to indicate the PHY is now ready to do its work. The state is changed, normally to PHY_UP which means that both the MAC and the PHY are ready. If the phy driver is using polling, when the next poll happens, the state machine notices the PHY is now in PHY_UP, and kicks off auto-negotiation, if needed. If however, the PHY is using interrupts, there is no polling. The phy is stuck in PHY_UP until the next interrupt comes along. And there is no reason for the PHY to interrupt. Have phy_start() schedule the state machine to run, which both speeds up the polling use case, and makes the interrupt use case actually work. This problems exists whenever there is a state change which will not cause an interrupt. Trigger the state machine in these cases, e.g. phy_error(). Signed-off-by: Andrew Lunn <andrew@lunn.ch> Cc: Kyle Roeschley <kyle.roeschley@ni.com> Tested-by: Kyle Roeschley <kyle.roeschley@ni.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_APIRalf Baechle
This should have been part of 40e084a506eb ('MIPS: Add uprobes support.'). Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Fixes: 40e084a506eb ("MIPS: Add uprobes support.") Acked-by: Jonathan Corbet <corbet@lwn.net> Cc: linux-mips@linux-mips.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14392/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-13ipv6: tcp: restore IP6CB for pktoptions skbsEric Dumazet
Baozeng Ding reported following KASAN splat : BUG: KASAN: use-after-free in ip6_datagram_recv_specific_ctl+0x13f1/0x15c0 at addr ffff880029c84ec8 Read of size 1 by task poc/25548 Call Trace: [<ffffffff82cf43c9>] dump_stack+0x12e/0x185 /lib/dump_stack.c:15 [< inline >] print_address_description /mm/kasan/report.c:204 [<ffffffff817ced3b>] kasan_report_error+0x48b/0x4b0 /mm/kasan/report.c:283 [< inline >] kasan_report /mm/kasan/report.c:303 [<ffffffff817ced9e>] __asan_report_load1_noabort+0x3e/0x40 /mm/kasan/report.c:321 [<ffffffff85c71da1>] ip6_datagram_recv_specific_ctl+0x13f1/0x15c0 /net/ipv6/datagram.c:687 [<ffffffff85c734c3>] ip6_datagram_recv_ctl+0x33/0x40 [<ffffffff85c0b07c>] do_ipv6_getsockopt.isra.4+0xaec/0x2150 [<ffffffff85c0c7f6>] ipv6_getsockopt+0x116/0x230 [<ffffffff859b5a12>] tcp_getsockopt+0x82/0xd0 /net/ipv4/tcp.c:3035 [<ffffffff855fb385>] sock_common_getsockopt+0x95/0xd0 /net/core/sock.c:2647 [< inline >] SYSC_getsockopt /net/socket.c:1776 [<ffffffff855f8ba2>] SyS_getsockopt+0x142/0x230 /net/socket.c:1758 [<ffffffff8685cdc5>] entry_SYSCALL_64_fastpath+0x23/0xc6 Memory state around the buggy address: ffff880029c84d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff880029c84e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > ffff880029c84e80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff880029c84f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff880029c84f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff He also provided a syzkaller reproducer. Issue is that ip6_datagram_recv_specific_ctl() expects to find IP6CB data that was moved at a different place in tcp_v6_rcv() This patch moves tcp_v6_restore_cb() up and calls it from tcp_v6_do_rcv() when np->pktoptions is set. Fixes: 971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line misses") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Baozeng Ding <sploving1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13netvsc: Remove mistaken udp.h inclusion.David S. Miller
Based upon v2 of Stephen's patch. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13xen-netback: fix type mismatch warningArnd Bergmann
Wiht the latest rework of the xen-netback driver, we get a warning on ARM about the types passed into min(): drivers/net/xen-netback/rx.c: In function 'xenvif_rx_next_chunk': include/linux/kernel.h:739:16: error: comparison of distinct pointer types lacks a cast [-Werror] The reason is that XEN_PAGE_SIZE is not size_t here. There is no actual bug, and we can easily avoid the warning using the min_t() macro instead of min(). Fixes: eb1723a29b9a ("xen-netback: refactor guest rx") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13stmmac: fix error check when init ptpGiuseppe CAVALLARO
This patch fixes a problem when propagated the failure of ptp_clock_register to open function. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre TORGUE <alexandre.torgue@st.com> Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13stmmac: fix ptp init for gmac4Giuseppe CAVALLARO
The gmac 4.x version has not extended descriptors (that are available on 3.x instead of). While initializing the PTP module, the advanced PTP was enabled in case of extended descriptors. This cannot be applied for 4.x version where only the hardware capability register has to show if the feature is present. Patch also adds some extra netdev_(debug/inof) to better dump the configuration. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre TORGUE <alexandre.torgue@st.com> Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13qed: fix old-style function definitionArnd Bergmann
The definition of qed_get_rdma_ops() is not a prototype unless we add 'void' here, as indicated by this W=1 warning: drivers/net/ethernet/qlogic/qed/qed_roce.c: In function ‘qed_get_rdma_ops’: drivers/net/ethernet/qlogic/qed/qed_roce.c:2950:28: error: old-style function definition [-Werror=old-style-definition] Fixes: abd49676c707 ("qed: Add RoCE ll2 & GSI support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13netvsc: fix checksum on UDP IPV6stephen hemminger
The software calculation of UDP checksum in Netvsc driver was only handling IPv4 case. By using skb_checksum_help() instead all protocols can be handled. Rearrange code to eliminate goto and look like other drivers. This is a temporary solution; recent versions of Window Server etc do support UDP checksum offload, just need to do the appropriate negotiation with host to validate before using. This will be done in later patch. Please queue this for -stable as well. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13net_sched: reorder pernet ops and act ops registrationsWANG Cong
Krister reported a kernel NULL pointer dereference after tcf_action_init_1() invokes a_o->init(), it is a race condition where one thread calling tcf_register_action() to initialize the netns data after putting act ops in the global list and the other thread searching the list and then calling a_o->init(net, ...). Fix this by moving the pernet ops registration before making the action ops visible. This is fine because: a) we don't rely on act_base in pernet ops->init(), b) in the worst case we have a fully initialized netns but ops is still not ready so new actions still can't be created. Reported-by: Krister Johansen <kjlx@templeofstupid.com> Tested-by: Krister Johansen <kjlx@templeofstupid.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13xen-netback: fix guest Rx stall detection (after guest Rx refactor)David Vrabel
If a VIF has been ready for rx_stall_timeout (60s by default) and an Rx ring is drained of all requests an Rx stall will be incorrectly detected. When this occurs and the guest Rx queue is empty, the Rx ring's event index will not be set and the frontend will not raise an event when new requests are placed on the ring, permanently stalling the VIF. This is a regression introduced by eb1723a29b9a7 (xen-netback: refactor guest rx). Fix this by reinstating the setting of queue->last_rx_time when placing a packet onto the guest Rx ring. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13drivers/ptp: Fix kernel memory disclosureVlad Tsyrklevich
The reserved field precise_offset->rsv is not cleared before being copied to user space, leaking kernel stack memory. Clear the struct before it's copied. Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13net/mlx5: Add MLX5_ARRAY_SET64 to fix BUILD_BUG_ONTom Herbert
I am hitting this in mlx5: drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function reclaim_pages_cmd.clone.0: drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:346: error: call to __compiletime_assert_346 declared with attribute error: BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_out, pas[i]) % 64 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function give_pages: drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:291: error: call to __compiletime_assert_291 declared with attribute error: BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_in, pas[i]) % 64 Problem is that this is doing a BUILD_BUG_ON on a non-constant expression because of trying to take offset of pas[i] in the structure. Fix is to create MLX5_ARRAY_SET64 that takes an additional argument that is the field index to separate between BUILD_BUG_ON on the array constant field and the indexed field to assign the value to. There are two callers of MLX5_SET64 that are trying to get a variable offset, change those to call MLX5_ARRAY_SET64 passing 'pas' and 'i' as the arguments to use in the offset check and the indexed value assignment. Fixes: a533ed5e179cd ("net/mlx5: Pages management commands via mlx5 ifc") Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13perf header: Set nr_numa_nodes only when we parsed all the dataJiri Olsa
Sukadev reported segfault on releasing perf env's numa data. It's due to nr_numa_nodes being set no matter if the numa data gets parsed properly. The perf_env__exit crash the on releasing non existed data. Setting nr_numa_nodes only when data are parsed out properly. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Reported-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-dt9c0zgkt4hybn2cr4xiawta@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-13perf top: Fix refreshing hierarchy entries on TUINamhyung Kim
Markus reported that 'perf top --hierarchy' cannot scroll down after refresh. This was because the number of entries are not updated when hierarchy is enabled. Unlike normal report view, hierarchy mode needs to keep its own entry count since it can have non-leaf entries which can expand/collapse. Reported-and-Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Fixes: f5b763feebe9 ("perf hists browser: Count number of hierarchy entries") Link: http://lkml.kernel.org/r/20161007050412.3000-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-13qmi_wwan: add support for Quectel EC21 and EC25Bjørn Mork
The Quectel EC21 and EC25 need the same "set DTR" request as devices based on the MDM9230 chipset, but has no USB3 support. Our best guess is that the "set DTR" functionality depends on chipset and/or baseband firmware generation. But USB3 is still an optional feature. Since we cannot enable this unconditionally for all older devices, and there doesn't appear to be anything we can use in the USB descriptors to identify these chips, we are forced to use a device specific quirk flag. Reported-and-tested-by: Sebastian Sjoholm <sebastian.sjoholm@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13Merge branch 'ovs-8021AD-fixes'David S. Miller
Jiri Benc says: ==================== openvswitch: vlan fixes Fix three issues introduced by the 802.1AD patchset. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13openvswitch: add NETIF_F_HW_VLAN_STAG_TX to internal devJiri Benc
The internal device does support 802.1AD offloading since 018c1dda5ff1 ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes"). Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Acked-by: Eric Garver <e@erig.me> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13openvswitch: fix vlan subtraction from packet lengthJiri Benc
When the packet has its vlan tag in skb->vlan_tci, the length of the VLAN header is not counted in skb->len. It doesn't make sense to subtract it. Fixes: 018c1dda5ff1 ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes") Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Acked-by: Eric Garver <e@erig.me> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13openvswitch: vlan: remove wrong likely statementJiri Benc
This code is called whenever flow key is being extracted from the packet. The packet may be as likely vlan tagged as not. Fixes: 018c1dda5ff1 ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes") Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Acked-by: Eric Garver <e@erig.me> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13qed: Fix to use list_for_each_entry_safe() when delete itemsWei Yongjun
Since we will remove items off the list using list_del() we need to use a safe version of the list_for_each_entry() macro aptly named list_for_each_entry_safe(). Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13tlan: avoid unused label with PCI=nArnd Bergmann
While build testing with randconfig on x86, I ran into this warning that appears to have been around forever drivers/net/ethernet/ti/tlan.c: In function ‘tlan_probe1’: drivers/net/ethernet/ti/tlan.c:614:1: error: label ‘err_out’ defined but not used [-Werror=unused-label] This can be trivially avoided by just moving the label into the existing #ifdef. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13xen-netback: (re-)create a debugfs node for hash informationPaul Durrant
It is useful to be able to see the hash configuration when running tests. This patch adds a debugfs node for that purpose. The original version of this patch (commit c0c64c152389) was reverted due to build failures caused by a conflict with commit 0364a8824c02 ("xen-netback: switch to threaded irq for control ring"). This new version of the patch is nearly identical to the original, the only difference being that creation of the debugfs node is predicated on 'ctrl_irq' being non-zero rather then the now non-existent 'ctrl_task'. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David S. Miller <davem@davemloft.net> Acked-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13net_sched: do not broadcast RTM_GETTFILTER resultEric Dumazet
There are two ways to get tc filters from kernel to user space. 1) Full dump (tc_dump_tfilter()) 2) RTM_GETTFILTER to get one precise filter, reducing overhead. The second operation is unfortunately broadcasting its result, polluting "tc monitor" users. This patch makes sure only the requester gets the result, using netlink_unicast() instead of rtnetlink_send() Jamal cooked an iproute2 patch to implement "tc filter get" operation, but other user space libraries already use RTM_GETTFILTER when a single filter is queried, instead of dumping all filters. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13cpufreq: conservative: Fix next frequency selectionRafael J. Wysocki
Commit d352cf47d93e (cpufreq: conservative: Do not use transition notifications) overlooked the case when the "frequency step" used by the conservative governor is small relative to the distances between the available frequencies and broke the algorithm by using policy->cur instead of the previously requested frequency when computing the next one. As a result, the governor may not be able to go outside of a narrow range between two consecutive available frequencies. Fix the problem by making the governor save the previously requested frequency and select the next one relative that value (unless it is out of range, in which case policy->cur will be used instead). Fixes: d352cf47d93e (cpufreq: conservative: Do not use transition notifications) Link: https://bugzilla.kernel.org/show_bug.cgi?id=177171 Reported-and-tested-by: Aleksey Rybalkin <aleksey@rybalkin.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: 4.8+ <stable@vger.kernel.org> # 4.8+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-12f2fs: fix wrong sum_page pointer in f2fs_gcJaegeuk Kim
This patch fixes using a wrong pointer for sum_page in f2fs_gc. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-10-12Merge branch 'fst-fixes' of ↵Chris Mason
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.9 Signed-off-by: Chris Mason <clm@fb.com>
2016-10-12acpi_os_vprintf: Use printk_get_level() to avoid unnecessary KERN_CONTJoe Perches
acpi_os_vprintf currently always uses a KERN_CONT prefix which may be followed immediately by a proper KERN_<LEVEL>. Check if the buffer already has a KERN_<LEVEL> at the start of the buffer and avoid the unnecessary KERN_CONT. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-12drm/amdgpu: clarify UVD/VCE special handling for CGAlex Deucher
UVD and VCE CG are handled specially, however the previous fix for this skipped late init for those blocks rather than just CG. Just protect the CG function call. No functional change since UVD and VCE don't currently utilize a late_init function. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-12drm/amd/amdgpu: enable clockgating only after late initArindam Nath
Sometimes during multiple reboots, the system hangs during bootup. The issue is very random and happens once in around 50 reboots or so. It seems if clockgating is enabled before late init, the GFX engine sometimes does not respond. This patch changes the ordering a little so that both powergating and clockgating are enabled only after late init calls. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Arindam Nath <arindam.nath@amd.com> Tested-by: Sunil Uttarwar <Sunil.Uttarwar1@amd.com> Reviewed-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-12drm/radeon: allow TA_CS_BC_BASE_ADDR on SIMarek Olšák
Required for border colors in compute shaders. Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-12drm/amdgpu: initialize the context reset_counter in amdgpu_ctx_initNicolai Hähnle
Ensure that we really only report a GPU reset if one has happened since the creation of the context. Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-12drm/amdgpu/gfx8: fix CGCG_CGLS handlingAlex Deucher
When setting up the RLC, only disable the CGCG and CGLS bits rather than clearing the entire register to avoid losing the golden settings. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-10-12drm/radeon: fix modeset tear down codeAlex Deucher
The ordering caused problems. bug: https://bugs.freedesktop.org/show_bug.cgi?id=98200 Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-12drm/radeon: fix up dp aux tear down (v2)Alex Deucher
Port the amdgpu fixes from Grazvydas to radeon. v2: drop unrelated whitespace change. bug: https://bugs.freedesktop.org/show_bug.cgi?id=98200 Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-12drm/amdgpu: use .early_unregister hook to remove DP AUX i2cGrazvydas Ignotas
When DisplayPort AUX channel i2c adapter is registered, drm_connector's kdev member is used as a parent, so we get sysfs structure like: /drm/card1/card1-DP-2/i2c-12 Because of that, there is a problem when drm core (and not the driver) calls drm_connector_unregister(), it removes parent sysfs entries ('card1-DP-2' in our example) while the i2c adapter is still registered. Later we get a WARN when we try to unregister the i2c adapter: WARNING: CPU: 3 PID: 1374 at fs/sysfs/group.c:243 sysfs_remove_group+0x14c/0x150 sysfs group ffffffff82911e40 not found for kobject 'i2c-12' To fix it, we can use the .early_unregister hook to unregister the i2c adapter before drm_connector's sysfs is torn down. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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