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2017-09-01Merge branch 'bpf-Improve-LRU-map-lookup-performance'David S. Miller
Martin KaFai Lau says: ==================== bpf: Improve LRU map lookup performance This patchset improves the lookup performance of the LRU map. Please see individual patch for details. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-01bpf: Only set node->ref = 1 if it has not been setMartin KaFai Lau
This patch writes 'node->ref = 1' only if node->ref is 0. The number of lookups/s for a ~1M entries LRU map increased by ~30% (260097 to 343313). Other writes on 'node->ref = 0' is not changed. In those cases, the same cache line has to be changed anyway. First column: Size of the LRU hash Second column: Number of lookups/s Before: > echo "$((2**20+1)): $(./map_perf_test 1024 1 $((2**20+1)) 10000000 | awk '{print $3}')" 1048577: 260097 After: > echo "$((2**20+1)): $(./map_perf_test 1024 1 $((2**20+1)) 10000000 | awk '{print $3}')" 1048577: 343313 Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-01bpf: Inline LRU map lookupMartin KaFai Lau
Inline the lru map lookup to save the cost in making calls to bpf_map_lookup_elem() and htab_lru_map_lookup_elem(). Different LRU hash size is tested. The benefit diminishes when the cache miss starts to dominate in the bigger LRU hash. Considering the change is simple, it is still worth to optimize. First column: Size of the LRU hash Second column: Number of lookups/s Before: > for i in $(seq 9 20); do echo "$((2**i+1)): $(./map_perf_test 1024 1 $((2**i+1)) 10000000 | awk '{print $3}')"; done 513: 1132020 1025: 1056826 2049: 1007024 4097: 853298 8193: 742723 16385: 712600 32769: 688142 65537: 677028 131073: 619437 262145: 498770 524289: 316695 1048577: 260038 After: > for i in $(seq 9 20); do echo "$((2**i+1)): $(./map_perf_test 1024 1 $((2**i+1)) 10000000 | awk '{print $3}')"; done 513: 1221851 1025: 1144695 2049: 1049902 4097: 884460 8193: 773731 16385: 729673 32769: 721989 65537: 715530 131073: 671665 262145: 516987 524289: 321125 1048577: 260048 Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-01bpf: Add lru_hash_lookup performance testMartin KaFai Lau
Create a new case to test the LRU lookup performance. At the beginning, the LRU map is fully loaded (i.e. the number of keys is equal to map->max_entries). The lookup is done through key 0 to num_map_entries and then repeats from 0 again. This patch also creates an anonymous struct to properly name the test params in stress_lru_hmap_alloc() in map_perf_test_kern.c. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-01Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2017-09-01 This should be the last ipsec-next pull request for this release cycle: 1) Support netdevice ESP trailer removal when decryption is offloaded. From Yossi Kuperman. 2) Fix overwritten return value of copy_sec_ctx(). Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-01ftrace: Fix selftest goto location on errorSteven Rostedt (VMware)
In the second iteration of trace_selftest_ops(), the error goto label is wrong in the case where trace_selftest_test_global_cnt is off. In the case of error, it leaks the dynamic ops that was allocated. Cc: stable@vger.kernel.org Fixes: 95950c2e ("ftrace: Add self-tests for multiple function trace users") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-09-01Merge tag 'usb-serial-4.14-rc1' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for v4.14-rc1 Here are the USB-serial updates for 4.14-rc1; a new option device id and one device-id clean up. All have been in linux-next with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org>
2017-09-01hwmon: (ltq-cputemp) add cpu temp sensor driverFlorian Eckert
Add the lantiq cpu temperature sensor support for xrx200. Signed-off-by: Florian Eckert <fe@dev.tdt.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-09-01hwmon: (ltq-cputemp) add devicetree bindings documentationFlorian Eckert
Document the devicetree bindings for the ltq-cputemp Signed-off-by: Florian Eckert <fe@dev.tdt.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-09-01kernfs: checking for IS_ERR() instead of NULLDan Carpenter
The kernfs_get_inode() returns NULL on error, it never returns error pointers. Fixes: aa8188253474 ("kernfs: add exportfs operations") Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-09-01staging: fsl-dpaa2/eth: fix off-by-one FD ctrl bitmaksHoria Geantă
Fix the values of DPAA2_FD_CTRL_FSE and DPAA2_FD_CTRL_FAERR, which are shifted off by one bit. Fixes: 39163c0ce0f48 ("staging: fsl-dpaa2/eth: Errors checking update") Cc: <stable@vger.kernel.org> Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-01mmc: renesas_sdhi: Add r8a7743/5 supportBiju Das
Add support for r8a7743/5 SoC.Renesas RZ/G1[ME] (R8A7743/5) SDHI is identical to the R-Car Gen2 family. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-09-01Merge remote-tracking branches 'asoc/topic/wm8524', 'asoc/topic/wm8804' and ↵Mark Brown
'asoc/topic/zte' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/twl6040', 'asoc/topic/txx9', ↵Mark Brown
'asoc/topic/utils', 'asoc/topic/ux500' and 'asoc/topic/wm8523' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/tas2552', 'asoc/topic/tas5720', ↵Mark Brown
'asoc/topic/tegra', 'asoc/topic/tlv320aic32x4' and 'asoc/topic/tlv320aic3x' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/simple', 'asoc/topic/spear', ↵Mark Brown
'asoc/topic/sta32x', 'asoc/topic/stm32' and 'asoc/topic/sunxi' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/rt5665', 'asoc/topic/rt5670', ↵Mark Brown
'asoc/topic/rt5677' and 'asoc/topic/samsung' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/rt5563', 'asoc/topic/rt5616', ↵Mark Brown
'asoc/topic/rt5645', 'asoc/topic/rt5659' and 'asoc/topic/rt5663' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/rk3036', 'asoc/topic/rockchip', ↵Mark Brown
'asoc/topic/rt274' and 'asoc/topic/rt5514' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/omap', 'asoc/topic/psc-ac97' and ↵Mark Brown
'asoc/topic/pxa' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/mtk', 'asoc/topic/mxs', ↵Mark Brown
'asoc/topic/nau8825', 'asoc/topic/nuc900' and 'asoc/topic/of-graph' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/kirkwood', 'asoc/topic/max9867', ↵Mark Brown
'asoc/topic/max98926' and 'asoc/topic/max98927' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/hisi', 'asoc/topic/img', ↵Mark Brown
'asoc/topic/jack' and 'asoc/topic/jz4740' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/dwc', 'asoc/topic/es8316', ↵Mark Brown
'asoc/topic/fsi', 'asoc/topic/fsl' and 'asoc/topic/hdmi' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/cs43130', 'asoc/topic/cs53l30', ↵Mark Brown
'asoc/topic/cygnus' and 'asoc/topic/davinci' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/cs35l33', 'asoc/topic/cs35l34' ↵Mark Brown
and 'asoc/topic/cs42l42' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/blackfin', 'asoc/topic/build', ↵Mark Brown
'asoc/topic/cirrus' and 'asoc/topic/compress' into asoc-next
2017-09-01Merge remote-tracking branches 'asoc/topic/adau1977', 'asoc/topic/arizona', ↵Mark Brown
'asoc/topic/atmel', 'asoc/topic/au1x' and 'asoc/topic/bcm' into asoc-next
2017-09-01Merge remote-tracking branch 'asoc/topic/rcar' into asoc-nextMark Brown
2017-09-01Merge remote-tracking branch 'asoc/topic/intel' into asoc-nextMark Brown
2017-09-01Merge remote-tracking branch 'asoc/topic/core' into asoc-nextMark Brown
2017-09-01Merge remote-tracking branch 'asoc/topic/const' into asoc-nextMark Brown
2017-09-01Merge remote-tracking branch 'asoc/topic/component' into asoc-nextMark Brown
2017-09-01Merge remote-tracking branch 'asoc/topic/msm8916' into asoc-nextMark Brown
2017-09-01Merge remote-tracking branches 'asoc/fix/arizona' and 'asoc/fix/mtk' into ↵Mark Brown
asoc-linus
2017-09-01Merge remote-tracking branch 'asoc/fix/rcar' into asoc-linusMark Brown
2017-09-01Merge remote-tracking branch 'asoc/fix/intel' into asoc-linusMark Brown
2017-09-01Merge tag 'asoc-fix-v4.13-rc7' into asoc-linusMark Brown
ASoC: Fixes for v4.13 A couple of fixes, one for a regression in simple-card introduced during the merge window that was only reported this week and another for a regression in registration of ACPI GPIOs. # gpg: Signature made Thu 31 Aug 2017 12:50:29 BST # gpg: using RSA key ADE668AA675718B59FE29FEA24D68B725D5487D0 # gpg: issuer "broonie@kernel.org" # gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>" [unknown] # gpg: aka "Mark Brown <broonie@debian.org>" [unknown] # gpg: aka "Mark Brown <broonie@kernel.org>" [unknown] # gpg: aka "Mark Brown <broonie@tardis.ed.ac.uk>" [unknown] # gpg: aka "Mark Brown <broonie@linaro.org>" [unknown] # gpg: aka "Mark Brown <Mark.Brown@linaro.org>" [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 3F25 68AA C269 98F9 E813 A1C5 C3F4 36CA 30F5 D8EB # Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2 9FEA 24D6 8B72 5D54 87D0
2017-09-01ASoC: Intel: Skylake: Add IPC to configure the copier secondary pinsPradeep Tewani
Copier can support upto 4 output pins. However, only pin 0 is configured as a part of copier initialization. Configuring rest of pins require the separate IPC to be sent to fw. Signed-off-by: Pradeep Tewani <pradeep.d.tewani@intel.com> Acked-By: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01ASoC: add missing compile rule for max98371Kuninori Morimoto
It is still using old driver style, this patch also fixup it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01ASoC: add missing compile rule for sirf-audio-codecKuninori Morimoto
It is still using old driver style, this patch also fixup it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01ASoC: add missing compile rule for max98371Kuninori Morimoto
It is still using old driver style, this patch also fixup it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01ASoC: cs43130: Add devicetree bindings for CS43130Li Xu
Add devicetree bindings documentation file for Cirrus Logic CS43130 codec. Signed-off-by: Li Xu <li.xu@cirrus.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01ASoC: cs43130: Add support for CS43130 codecLi Xu
Add support for Cirrus Logic CS43130 codec. Support: I2S/DSP PCM playback. DoP/DSD playback. HP detection and DC/AC impedance measurement. Signed-off-by: Li Xu <li.xu@cirrus.com> Acked-by: Brian Austin <brian.austin@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01ASoC: make clock direction configurable in asoc-simpleVitaly Wool
Some CPU drivers (e. g. davinci-mcasp) may require the system clock to be configured as OUT, while there's no good way currently to set SND_SOC_CLK_OUT in simple-soc driver if the clock is fixed-rate. This patch makes asoc_simple_card_init_dai() initialize clock to SND_SOCK_CLK_OUT if explicitly stated in the relevant dts file. This change is transparent and doesn't change the default behavior. Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01spi: spi-falcon: drop check of boot selectHauke Mehrtens
Do not check which flash type the SoC was booted from before using this driver. Assume that the device tree is correct and use this driver when it was added to device tree. This also removes a build dependency to the SoC code. All device trees I am aware of only have one correct flash device entry in it. The device tree is anyway bundled with the kernel in all systems using device tree I know of. The boot mode can be specified with some pin straps and will select the flash type the rom code will boot from. One SPI, NOR or NAND flash chip can be connect to the EBU and used to load the first stage boot loader from. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: Mark Brown <broonie@kernel.org> Cc: linux-spi@vger.kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2017-09-01x86/idt: Fix the X86_TRAP_BP gateIngo Molnar
Andrei Vagin reported a CRIU regression and bisected it back to: 90f6225fba0c ("x86/idt: Move IST stack based traps to table init") This table init conversion loses the system-gate property of X86_TRAP_BP and erroneously moves it from DPL3 to DPL0. Fix it. Reported-by: Andrei Vagin <avagin@virtuozzo.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: dvlasenk@redhat.com Cc: linux-tip-commits@vger.kernel.org Cc: peterz@infradead.org Cc: brgerst@gmail.com Cc: rostedt@goodmis.org Cc: bp@alien8.de Cc: luto@kernel.org Cc: jpoimboe@redhat.com Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: torvalds@linux-foundation.org Cc: tip-bot for Jacob Shin <tipbot@zytor.com> Link: http://lkml.kernel.org/r/20170901082630.xvyi5bwk6etmppqc@gmail.com
2017-09-01ANDROID: binder: don't queue async transactions to thread.Martijn Coenen
This can cause issues with processes using the poll() interface: 1) client sends two oneway transactions 2) the second one gets queued on async_todo (because the server didn't handle the first one yet) 3) server returns from poll(), picks up the first transaction and does transaction work 4) server is done with the transaction, sends BC_FREE_BUFFER, and the second transaction gets moved to thread->todo 5) libbinder's handlePolledCommands() only handles the commands in the current data buffer, so doesn't see the new transaction 6) the server continues running and issues a new outgoing transaction. Now, it suddenly finds the incoming oneway transaction on its thread todo, and returns that to userspace. 7) userspace does not expect this to happen; it may be holding a lock while making the outgoing transaction, and if handling the incoming trasnaction requires taking the same lock, userspace will deadlock. By queueing the async transaction to the proc workqueue, we make sure it's only picked up when a thread is ready for proc work. Signed-off-by: Martijn Coenen <maco@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-01ANDROID: binder: don't enqueue death notifications to thread todo.Martijn Coenen
This allows userspace to request death notifications without having to worry about getting an immediate callback on the same thread; one scenario where this would be problematic is if the death recipient handler grabs a lock that was already taken earlier (eg as part of a nested transaction). Signed-off-by: Martijn Coenen <maco@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-01ANDROID: binder: Don't BUG_ON(!spin_is_locked()).Martijn Coenen
Because is_spin_locked() always returns false on UP systems. Use assert_spin_locked() instead, and remove the WARN_ON() instances, since those were easy to verify. Signed-off-by: Martijn Coenen <maco@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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