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2016-07-05irqchip/mips-gic: Map to VPs using HW VPNumPaul Burton
When mapping an interrupt to a VP(E) we must use the identifier for the VP that the hardware expects, and this does not always match up with the Linux CPU number. Commit d46812bb0bef ("irqchip: mips-gic: Use HW IDs for VPE_OTHER_ADDR") corrected this for the cases that existed at the time it was written, but commit 2af70a962070 ("irqchip/mips-gic: Add a IPI hierarchy domain") added another case before the former patch was merged. This leads to incorrectly using Linux CPU numbers when mapping interrupts to VPs, which breaks on certain systems such as those with multi-core I6400 CPUs. Fix by adding the appropriate call to mips_cm_vp_id() to retrieve the expected VP identifier. Fixes: d46812bb0bef ("irqchip: mips-gic: Use HW IDs for VPE_OTHER_ADDR") Fixes: 2af70a962070 ("irqchip/mips-gic: Add a IPI hierarchy domain") Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Jason Cooper <jason@lakedaemon.net> Cc: Qais Yousef <qsyousef@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20160705132600.27730-1-paul.burton@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-05KVM: MTRR: fix kvm_mtrr_check_gfn_range_consistency page faultAlexis Dambricourt
The following #PF may occurs: [ 1403.317041] BUG: unable to handle kernel paging request at 0000000200000068 [ 1403.317045] IP: [<ffffffffc04c20b0>] __mtrr_lookup_var_next+0x10/0xa0 [kvm] [ 1403.317123] Call Trace: [ 1403.317134] [<ffffffffc04c2a65>] ? kvm_mtrr_check_gfn_range_consistency+0xc5/0x120 [kvm] [ 1403.317143] [<ffffffffc04ac11f>] ? tdp_page_fault+0x9f/0x2c0 [kvm] [ 1403.317152] [<ffffffffc0498128>] ? kvm_set_msr_common+0x858/0xc00 [kvm] [ 1403.317161] [<ffffffffc04b8883>] ? x86_emulate_insn+0x273/0xd30 [kvm] [ 1403.317171] [<ffffffffc04c04e4>] ? kvm_cpuid+0x34/0x190 [kvm] [ 1403.317180] [<ffffffffc04a5bb9>] ? kvm_mmu_page_fault+0x59/0xe0 [kvm] [ 1403.317183] [<ffffffffc0d729e1>] ? vmx_handle_exit+0x1d1/0x14a0 [kvm_intel] [ 1403.317185] [<ffffffffc0d75f3f>] ? atomic_switch_perf_msrs+0x6f/0xa0 [kvm_intel] [ 1403.317187] [<ffffffffc0d7621d>] ? vmx_vcpu_run+0x2ad/0x420 [kvm_intel] [ 1403.317196] [<ffffffffc04a0962>] ? kvm_arch_vcpu_ioctl_run+0x622/0x1550 [kvm] [ 1403.317204] [<ffffffffc049abb9>] ? kvm_arch_vcpu_load+0x59/0x210 [kvm] [ 1403.317206] [<ffffffff81036245>] ? __kernel_fpu_end+0x35/0x100 [ 1403.317213] [<ffffffffc0487eb6>] ? kvm_vcpu_ioctl+0x316/0x5d0 [kvm] [ 1403.317215] [<ffffffff81088225>] ? do_sigtimedwait+0xd5/0x220 [ 1403.317217] [<ffffffff811f84dd>] ? do_vfs_ioctl+0x9d/0x5c0 [ 1403.317224] [<ffffffffc04928ae>] ? kvm_on_user_return+0x3e/0x70 [kvm] [ 1403.317225] [<ffffffff811f8a74>] ? SyS_ioctl+0x74/0x80 [ 1403.317227] [<ffffffff815bf0b6>] ? entry_SYSCALL_64_fastpath+0x1e/0xa8 [ 1403.317242] RIP [<ffffffffc04c20b0>] __mtrr_lookup_var_next+0x10/0xa0 [kvm] At mtrr_lookup_fixed_next(), when the condition 'if (iter->index >= ARRAY_SIZE(iter->mtrr_state->fixed_ranges))' becomes true, mtrr_lookup_var_start() is called with iter->range with gargabe values from the fixed MTRR union field. Then, list_prepare_entry() do not call list_entry() initialization, keeping a garbage pointer in iter->range which is accessed in the following __mtrr_lookup_var_next() call. Fixes: f571c0973e4b8c888e049b6842e4b4f93b5c609c Signed-off-by: Alexis Dambricourt <alexis@blade-group.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-05MAINTAINERS: update STi maintainer listMaxime Coquelin
Remove myself as STi maintainer as I will no longer have access to STi platforms, and remove Srini too, who now works on other platforms. Patrice will manage the pull requests. Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-05MAINTAINERS: update STM32 maintainers listMaxime Coquelin
I will have less time to work on STM32 platform, so I propose Alexandre as co-maintainer. Alex is working in the STMicroelectronics division in charge of STM32 family, so he will have access to all technical information and hardware. Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-05Merge tag 'mvebu-fixes-4.7-2' of git://git.infradead.org/linux-mvebu into fixesArnd Bergmann
Pull "mvebu fixes for 4.7 (part 2)" from Gregory CLEMENT: Fix a regression introduced by a cleanup on kirkwood_pm_init * tag 'mvebu-fixes-4.7-2' of git://git.infradead.org/linux-mvebu: ARM: mvebu: compile pm code conditionally
2016-07-05Merge tag 'sunxi-fixes-for-4.7' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes Pull "Allwinner Fixes for 4.7" from Maxime Ripard: Two patches fixing simplefb on the SoCs that had their display clocks enabled, and one fix for the CHIP that will enable its sched clock. * tag 'sunxi-fixes-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: ARM: dts: sun7i: Fix pll3x2 and pll7x2 not having a parent clock ARM: dts: sunxi: Add pll3 to simplefb nodes clocks lists ARM: sunxi/dt: make the CHIP inherit from allwinner,sun5i-a13
2016-07-05batman-adv: Free last_bonding_candidate on release of orig_nodeSven Eckelmann
The orig_ifinfo reference counter for last_bonding_candidate in batadv_orig_node has to be reduced when an originator node is released. Otherwise the orig_ifinfo is leaked and the reference counter the netdevice is not reduced correctly. Fixes: f3b3d9018975 ("batman-adv: add bonding again") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-07-05batman-adv: Fix reference leak in batadv_find_routerSven Eckelmann
The replacement of last_bonding_candidate in batadv_orig_node has to be an atomic operation. Otherwise it is possible that the reference counter of a batadv_orig_ifinfo is reduced which was no longer the last_bonding_candidate when the new candidate is added. This can either lead to an invalid memory access or to reference leaks which make it impossible to an interface which was added to batman-adv. Fixes: f3b3d9018975 ("batman-adv: add bonding again") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-07-05batman-adv: Fix non-atomic bla_claim::backbone_gw accessSven Eckelmann
The pointer batadv_bla_claim::backbone_gw can be changed at any time. Therefore, access to it must be protected to ensure that two function accessing the same backbone_gw are actually accessing the same. This is especially important when the crc_lock is used or when the backbone_gw of a claim is exchanged. Not doing so leads to invalid memory access and/or reference leaks. Fixes: 23721387c409 ("batman-adv: add basic bridge loop avoidance code") Fixes: 5a1dd8a4773d ("batman-adv: lock crc access in bridge loop avoidance") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-07-05batman-adv: Fix orig_node_vlan leak on orig_node_releaseSven Eckelmann
batadv_orig_node_new uses batadv_orig_node_vlan_new to allocate a new batadv_orig_node_vlan and add it to batadv_orig_node::vlan_list. References to this list have also to be cleaned when the batadv_orig_node is removed. Fixes: 7ea7b4a14275 ("batman-adv: make the TT CRC logic VLAN specific") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-07-05batman-adv: Avoid nullptr dereference in dat after vlan_insert_tagSven Eckelmann
vlan_insert_tag can return NULL on errors. The distributed arp table code therefore has to check the return value of vlan_insert_tag for NULL before it can safely operate on this pointer. Fixes: be1db4f6615b ("batman-adv: make the Distributed ARP Table vlan aware") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-07-05batman-adv: Avoid nullptr dereference in bla after vlan_insert_tagSven Eckelmann
vlan_insert_tag can return NULL on errors. The bridge loop avoidance code therefore has to check the return value of vlan_insert_tag for NULL before it can safely operate on this pointer. Fixes: 23721387c409 ("batman-adv: add basic bridge loop avoidance code") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-07-05Merge tag 'perf-core-for-mingo-20160704' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: Documentation changes: - Update android build documentation (Chris Phlipot) Infrastructure changes: - Respect WERROR=0 in libapi and libsubcmd, to allow building on Android (Chris Phlipot) - Prep work to support SDT events in probe cache (Masami Hiramatsu) - ELF support for SDT (Hemant Kumar) - Add feature detection for libelf's elf_getshdrstrndx function (Arnaldo Carvalho de Melo) - Fix hist accumulation test (Jiri Olsa) - Unwind callchain fixes (Jiri Olsa) - Change internal representation of numa nodes obtained from perf.data header (Jiri Olsa) - Sync copy of syscall_64.tbl with the kernel (Arnaldo Carvalho de Melo) - Add LGPL 2.1 license header to libbpf source files (Wang Nan) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-05ALSA: hda/realtek: Add Lenovo L460 to docking unit fixupTorsten Hilbrich
This solves the issue that a headphone is not working on the docking unit. Signed-off-by: Torsten Hilbrich <torsten.hilbrich@secunet.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-07-05gpu: drm: sun4i_drv: add missing of_node_put after calling of_parse_phandlePeter Chen
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-07-04qeth: delete napi struct when removing a qeth deviceUrsula Braun
A qeth_card contains a napi_struct linked to the net_device during device probing. This struct must be deleted when removing the qeth device, otherwise Panic on oops can occur when qeth devices are repeatedly removed and added. Fixes: a1c3ed4c9ca ("qeth: NAPI support for l2 and l3 discipline") Cc: stable@vger.kernel.org # v2.6.37+ Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Tested-by: Alexander Klein <ALKL@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04Revert "fsl/fman: fix error handling"David S. Miller
This reverts commit a788a4a040e003574b8ad17115706ab1601ec572. This patch is wrong, the type returned doesn't fit what the error pointer macros expect. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04fsl/fman: fix error handlingChristophe Jaillet
This is likely that checking 'fman->fifo_offset' instead of 'fman->cam_offset' is expected here. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04perf tools: Sync copy of syscall_64.tbl with the kernelArnaldo Carvalho de Melo
Noticed by the build system, that emitted this warning: Warning: x86_64's syscall_64.tbl differs from kernel This was due to the wiring up of the recently added preadv2 & pwritev2 syscalls to the compat code, which hadn't been done by the patch introducing those syscalls: 4babf2c5efb7 ("x86: wire up preadv2 and pwritev2"). The patch doing the compat wiring was: 482dd2ef1244 ("x86/syscalls: Wire up compat readv2/writev2 syscalls") This just silences the perf build warning, as compat syscalls still can't be supported in 'perf trace´ due to limitations in the raw_syscalls:sys_{enter,exit} tracepoints it relies on. Reported-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-4dm8eoy0wslgtwqdhz64ods0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04hwmon: (jc42) Add I2C_CLASS_HWMON to detection classAlison Schofield
In 2011, commit 774466add7c ("hwmon: (jc42) Change detection class") changed the detection class of these chips to I2C_CLASS_SPD based on this premise: "makes more sense because these chips always live on memory modules" Today these chips have applications beyond memory modules. Examples are JC42.4 compatible chips such as MCP9804 and MCP9808, but also MCP9805, which is marked as JC42.4 compliant and suggested for use not only for DIMMS, but also as generic temperature sensor. Add I2C_CLASS_HWMON as an additional detection class to allow detection by hwmon class i2c adapters. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Cc: Daniel Baluta <daniel.baluta@gmail.com> [groeck: Updated description] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-07-04perf tools: Update android build documentationChris Phlipot
Update the android build documentation according to recent android build fixes. The instructions for step 1a and step 2 were updated to work with NDK version 11(oldest supported version) and NDK version 12(current version). Signed-off-by: Chris Phlipot <cphlipot0@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1467349955-1135-5-git-send-email-cphlipot0@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04tools lib subcmd: Respect WERROR=0 for buildChris Phlipot
this enables the workaround for compilers that generate warnings when compiling libsubcmd. Signed-off-by: Chris Phlipot <cphlipot0@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1467349955-1135-3-git-send-email-cphlipot0@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04tools lib api: Respect WERROR=0 for buildChris Phlipot
This enables the workaround for compilers that generate warnings when compiling libapi. Signed-off-by: Chris Phlipot <cphlipot0@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1467349955-1135-2-git-send-email-cphlipot0@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04tools lib bpf: Add license headerWang Nan
Adding a missing license descriptopn header to files in libbpf, make it LGPL-2.1. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Eric Leblond <eleblond@stamus-networks.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1467630162-193121-1-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf unwind: Call unwind__prepare_access for forked threadJiri Olsa
Currently we call unwind__prepare_access for map event. In case we report fork event the thread inherits its parent's maps and unwind__prepare_access is never called for the thread. This causes unwind__get_entries seeing uninitialized unwind_libunwind_ops and thus returning no callchain. Adding unwind__prepare_access calls for fork even processing. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1467634583-29147-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf unwind: Add initialized arg into unwind__prepare_accessJiri Olsa
Adding initialized arg into unwind__prepare_access to get feedback about the initialization state. It's not possible to get it from error code, because we return 0 even in case we don't recognize dso, which is valid. The 'initialized' value is used in following patch to speedup unwind__prepare_access calls logic in fork path. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1467634583-29147-4-git-send-email-jolsa@kernel.org [ Remove ; after static inline function signatures, fixes build break ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04cdc_ncm: workaround for EM7455 "silent" data interfaceBjørn Mork
Several Lenovo users have reported problems with their Sierra Wireless EM7455 modem. The driver has loaded successfully and the MBIM management channel has appeared to work, including establishing a connection to the mobile network. But no frames have been received over the data interface. The problem affects all EM7455 and MC7455, and is assumed to affect other modems based on the same Qualcomm chipset and baseband firmware. Testing narrowed the problem down to what seems to be a firmware timing bug during initialization. Adding a short sleep while probing is sufficient to make the problem disappear. Experiments have shown that 1-2 ms is too little to have any effect, while 10-20 ms is enough to reliably succeed. Reported-by: Stefan Armbruster <ml001@armbruster-it.de> Reported-by: Ralph Plawetzki <ralph@purejava.org> Reported-by: Andreas Fett <andreas.fett@secunet.com> Reported-by: Rasmus Lerdorf <rasmus@lerdorf.com> Reported-by: Samo Ratnik <samo.ratnik@gmail.com> Reported-and-tested-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04RDS: fix rds_tcp_init() error pathVegard Nossum
If register_pernet_subsys() fails, we shouldn't try to call unregister_pernet_subsys(). Fixes: 467fa15356 ("RDS-TCP: Support multiple RDS-TCP listen endpoints, one per netns.") Cc: stable@vger.kernel.org Cc: Sowmini Varadhan <sowmini.varadhan@oracle.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04perf tests: Fix hist accumulation testJiri Olsa
User's values from .perfconfig could overload the default callchain setup and cause this test to fail. Making sure the test is using default callchain_param values. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1467634583-29147-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf header: Transform nodes string info to structJiri Olsa
Storing NUMA info within struct numa_node instead of strings. This way it's usable in future patches. Also it turned out it's slightly less code involved than using strings. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1467634583-29147-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf buildid-cache: Scan and import user SDT events to probe cacheMasami Hiramatsu
perf buildid-cache --add <binary> scans given binary and add the SDT events to probe cache. "sdt_" prefix is appended for all SDT providers to avoid event-name clash with other pre-defined events. It is possible to use the cached SDT events as other cached events, via perf probe --add "sdt_<provider>:<event>=<event>". e.g. ---- # perf buildid-cache --add /lib/libc-2.17.so # perf probe --cache --list | head -n 5 /usr/lib/libc-2.17.so (a6fb821bdf53660eb2c29f778757aef294d3d392): sdt_libc:setjmp=setjmp sdt_libc:longjmp=longjmp sdt_libc:longjmp_target=longjmp_target sdt_libc:memory_heap_new=memory_heap_new # perf probe -x /usr/lib/libc-2.17.so \ -a sdt_libc:memory_heap_new=memory_heap_new Added new event: sdt_libc:memory_heap_new (on memory_heap_new in /usr/lib/libc-2.17.so) You can now use it in all perf tools, such as: perf record -e sdt_libc:memory_heap_new -aR sleep 1 # perf probe -l sdt_libc:memory_heap_new (on new_heap+183 in /usr/lib/libc-2.17.so) ---- Note that SDT event entries in probe-cache file is somewhat different from normal cached events. Normal one starts with "#", but SDTs are starting with "%". Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736025058.27797.13043265488541434502.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf probe: Add group name supportMasami Hiramatsu
Allow user to set group name for adding new event. Note that user must ensure that the group name doesn't conflict with existing group name carefully. E.g. Existing group name can conflict with other events. Especially, using the group name reserved for kernel modules can hide kernel embedded events when loading modules. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736024091.27797.9471545190066268995.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf sdt: ELF support for SDTHemant Kumar
This patch serves the initial support to identify and list SDT events in binaries. When programs containing SDT markers are compiled, gcc with the help of assembler directives identifies them and places them in the section ".note.stapsdt". To find these markers from the binaries, one needs to traverse through this section and parse the relevant details like the name, type and location of the marker. Also, the original location could be skewed due to the effect of prelinking. If that is the case, the locations need to be adjusted. The functions in this patch open a given ELF, find out the SDT section, parse the relevant details, adjust the location (if necessary) and populate them in a list. A typical note entry in ".note.stapsdt" section is as follows : |--nhdr.n_namesz--| ------------------------------------ | nhdr | "stapsdt" | ----- |----------------------------------| | | <location> <base_address> | | | <semaphore> | nhdr.n_descsize | "provider_name" "note_name" | | | <args> | ----- |----------------------------------| | nhdr | "stapsdt" | |... The above shows an excerpt from the section ".note.stapsdt". 'nhdr' is a structure which has the note name size (n_namesz), note description size (n_desc_sz) and note type (n_type). So, in order to parse the note note info, we need nhdr to tell us where to start from. As can be seen from <sys/sdt.h>, the name of the SDT notes given is "stapsdt". But this is not the identifier of the note. After that, we go to description of the note to find out its location, the address of the ".stapsdt.base" section and the semaphore address. Then, we find the provider name and the SDT marker name and then follow the arguments. Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736022628.27797.1201368329092908163.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf build: Add feature detection for libelf's elf_getshdrstrndx()Arnaldo Carvalho de Melo
That appeared after 0.140, and will be used in the SDT code, so, to avoid bisection break on older systems, add a feature detection and provide a stub with a pr_debug() to keep it building. Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-80y0eldgweorqnwha9rvfxjr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04geneve: fix max_mtu settingHaishuang Yan
For ipv6+udp+geneve encapsulation data, the max_mtu should subtract sizeof(ipv6hdr), instead of sizeof(iphdr). Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04iio: Add iio.git tree to MAINTAINERSJonathan Cameron
The tree has been in the same location for a long time. Putting it in MAINTAINERS makes it easy for those new to, or less familiar with IIO to find the correct tree to base patches on. Mostly basing on staging-next is fine as well unless working on a very active driver. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio:st_pressure: clean useless static channel initializersGregor Boirie
Some static channels are explicitly initialized with default values. Remove them to enhance readability. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio:st_pressure:lps22hb: temperature supportGregor Boirie
Implement lps22hb temperature sampling channel. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio:st_pressure:lps22hb: open drain supportGregor Boirie
Add support for open drain interrupt line. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio:st_pressure: temperature triggered bufferingGregor Boirie
Enable support for triggered buffering of temperature samples. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio:st_pressure: document sampling gainsGregor Boirie
Details scaling factors and offsets applied to raw temperature and pressure samples. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio:st_pressure: align storagebits on power of 2Gregor Boirie
Sampled pressure data are 24 bits long and should be stored in a 32 bits word. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio:st_sensors: align on storagebits boundariesGregor Boirie
Ensure triggered buffering memory accesses are properly aligned on per channel storagebits boundaries. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04staging:iio:lis3l02dq drop separate driverJonathan Cameron
Retire this venerable driver as the basic support is now in the generic st-sensors accelerometer driver. There are a few missing features in the new driver: * Threshold events. * Access to the calibration adjustment registers (patch shortly) In exchange it brings a cleaner and more maintainable code base that actually gets tested more than once every few years. I'll actually be suprised if anyone other than me has a board with one of these on that is running an up to date kernel. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio: accel: st_accel: Add lis3l02dq supportJonathan Cameron
Time to finally kill off the venerable (it was one of my first drivers) lis3l02dq driver in favour of adding support in the st sensors framework. This does loose us the event support that driver always had, but I think that will reappear at some point and in the meantime the maintenance advantages of dropping the 'special' driver for this one part outweigh the issues. It's worth noting this part is ancient and I may well be the only person who still has any on hardware running recent kernels. It has a few 'quirks'. - No WAI register so that just became optional. - A BDU option that really does block updates. Completely. Whatever you do, you don't get any more data with it set. It is documented the same as more modern parts but I presume they are actually clearing for updates after a read of both bytes! - Fixed scale. - It's too quick. Even at slowest rate (280Hz) I can't read out fast enough on my board (stargate 2) to beat new data coming in. Linus' repeat read patch doesn't help in this case. It just means I get 10 readings before dying... So in reality this will get used with software triggers only unless someone has this long out of production device on a quick board. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Denis CIOCCA <denis.ciocca@st.com> Cc: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04Merge 4.7-rc6 into usb-nextGreg Kroah-Hartman
We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-04Merge 4.7-rc6 into tty-nextGreg Kroah-Hartman
We want the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-04Merge 4.7-rc6 into staging-nextGreg Kroah-Hartman
We want the staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-04Revert "gpiolib: Split GPIO flags parsing and GPIO configuration"Johan Hovold
This reverts commit 923b93e451db876d1479d3e4458fce14fec31d1c. Make sure consumers do not overwrite gpio flags for pins that have already been claimed. While adding support for gpio drivers to refuse a request using unsupported flags, the order of when the requested flag was checked and the new flags were applied was reversed to that consumers could overwrite flags for already requested gpios. This not only affects device-tree setups where two drivers could request the same gpio using conflicting configurations, but also allowed user space to clear gpio flags for already claimed pins simply by attempting to export them through the sysfs interface. By for example clearing the FLAG_ACTIVE_LOW flag this way, user space could effectively change the polarity of a signal. Reverting this change obviously prevents gpio drivers from doing sanity checks on the flags in their request callbacks. Fortunately only one recently added driver (gpio-tps65218 in v4.6) appears to do this, and a follow up patch could restore this functionality through a different interface. Cc: stable <stable@vger.kernel.org> # 4.4 Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-07-04gpio: sch: Fix Oops on module load on Asus Eee PC 1201Colin Pitrat
This fixes the issue descirbe in bug 117531 (https://bugzilla.kernel.org/show_bug.cgi?id=117531). It's a regression introduced in linux 4.5 that causes a Oops at load of gpio_sch and prevents powering off the computer. The issue is that sch_gpio_reg_set is called in sch_gpio_probe before gpio_chip data is initialized with the pointer to the sch_gpio struct. As sch_gpio_reg_set calls gpiochip_get_data, it returns NULL which causes the Oops. The patch follows Mika's advice (https://lkml.org/lkml/2016/5/9/61) and consists in modifying sch_gpio_reg_get and sch_gpio_reg_set to take a sch_gpio struct directly instead of a gpio_chip, which avoids the call to gpiochip_get_data. Thanks Mika for your patience with me :-) Cc: stable@vger.kernel.org Signed-off-by: Colin Pitrat <colin.pitrat@gmail.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
generated by cgit (git 2.34.1) at 2025-09-15 09:11:47 +0000