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2016-04-26perf probe: Let probe_file__add_event return 0 if succeededMasami Hiramatsu
Since other methods return 0 if succeeded (or filedesc), let probe_file__add_event() return 0 instead of the length of written bytes. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.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/20160426090303.11891.18232.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-26perf tools: Add lsdir() helper to read a directoryMasami Hiramatsu
As a utility function, add lsdir() which reads given directory and store entry name into a strlist. lsdir accepts a filter function so that user can filter out unneeded entries. 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: 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/20160426090242.11891.79014.stgit@devbox [ Do not use the 'dirname' it is used in some distros ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-26Merge branch 'nla_align-set-4'David S. Miller
Nicolas Dichtel says: ==================== netlink: align attributes when needed (patchset #3) This is the continuation (series #3) of the work done to align netlink attributes when these attributes contain some 64-bit fields. It's the last patchset from what I've seen. The last user of nla_put_u64() is block/drbd. This module does not use standard netlink API (see all the stuff in include/linux/genl_magic_struct.h and include/linux/genl_magic_func.h). I didn't modify it because it's seems hard to do it whithout testing and fully understanding the context (for example, why include/linux/drbd_genl.h is not part of uapi?). Any thoughts? ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26sched: align nlattr properly when neededNicolas Dichtel
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26neigh: align nlattr properly when neededNicolas Dichtel
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26rtnl: align nlattr properly when neededNicolas Dichtel
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26ovs: align nlattr properly when neededNicolas Dichtel
I also fix commit 8b32ab9e6ef1: use nla_total_size_64bit() for OVS_FLOW_ATTR_USED in ovs_flow_cmd_msg_size(). Fixes: 8b32ab9e6ef1 ("ovs: use nla_put_u64_64bit()") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26sock_diag: align nlattr properly when neededNicolas Dichtel
I also fix the value of INET_DIAG_MAX. It's wrong since commit 8f840e47f190 which is only in net-next right now, thus I didn't make a separate patch. Fixes: 8f840e47f190 ("sctp: add the sctp_diag.c file") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26fs/quota: use nla_put_u64_64bit()Nicolas Dichtel
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26drivers/wireless: use nla_put_u64_64bit()Nicolas Dichtel
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26macsec: use nla_put_u64_64bit()Nicolas Dichtel
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26net: ipv6: Delete host routes on an ifdownDavid Ahern
It was a simple idea -- save IPv6 configured addresses on a link down so that IPv6 behaves similar to IPv4. As always the devil is in the details and the IPv6 stack as too many behavioral differences from IPv4 making the simple idea more complicated than it needs to be. The current implementation for keeping IPv6 addresses can panic or spit out a warning in one of many paths: 1. IPv6 route gets an IPv4 route as its 'next' which causes a panic in rt6_fill_node while handling a route dump request. 2. rt->dst.obsolete is set to DST_OBSOLETE_DEAD hitting the WARN_ON in fib6_del 3. Panic in fib6_purge_rt because rt6i_ref count is not 1. The root cause of all these is references related to the host route for an address that is retained. So, this patch deletes the host route every time the ifdown loop runs. Since the host route is deleted and will be re-generated an up there is no longer a need for the l3mdev fix up. On the 'admin up' side move addrconf_permanent_addr into the NETDEV_UP event handling so that it runs only once versus on UP and CHANGE events. All of the current panics and warnings appear to be related to addresses on the loopback device, but given the catastrophic nature when a bug is triggered this patch takes the conservative approach and evicts all host routes rather than trying to determine when it can be re-used and when it can not. That can be a later optimizaton if desired. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26Revert "ipv6: Revert optional address flusing on ifdown."David S. Miller
This reverts commit 841645b5f2dfceac69b78fcd0c9050868d41ea61. Ok, this puts the feature back. I've decided to apply David A.'s bug fix and run with that rather than make everyone wait another whole release for this feature. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26workqueue: fix ghost PENDING flag while doing MQ IORoman Pen
The bug in a workqueue leads to a stalled IO request in MQ ctx->rq_list with the following backtrace: [ 601.347452] INFO: task kworker/u129:5:1636 blocked for more than 120 seconds. [ 601.347574] Tainted: G O 4.4.5-1-storage+ #6 [ 601.347651] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 601.348142] kworker/u129:5 D ffff880803077988 0 1636 2 0x00000000 [ 601.348519] Workqueue: ibnbd_server_fileio_wq ibnbd_dev_file_submit_io_worker [ibnbd_server] [ 601.348999] ffff880803077988 ffff88080466b900 ffff8808033f9c80 ffff880803078000 [ 601.349662] ffff880807c95000 7fffffffffffffff ffffffff815b0920 ffff880803077ad0 [ 601.350333] ffff8808030779a0 ffffffff815b01d5 0000000000000000 ffff880803077a38 [ 601.350965] Call Trace: [ 601.351203] [<ffffffff815b0920>] ? bit_wait+0x60/0x60 [ 601.351444] [<ffffffff815b01d5>] schedule+0x35/0x80 [ 601.351709] [<ffffffff815b2dd2>] schedule_timeout+0x192/0x230 [ 601.351958] [<ffffffff812d43f7>] ? blk_flush_plug_list+0xc7/0x220 [ 601.352208] [<ffffffff810bd737>] ? ktime_get+0x37/0xa0 [ 601.352446] [<ffffffff815b0920>] ? bit_wait+0x60/0x60 [ 601.352688] [<ffffffff815af784>] io_schedule_timeout+0xa4/0x110 [ 601.352951] [<ffffffff815b3a4e>] ? _raw_spin_unlock_irqrestore+0xe/0x10 [ 601.353196] [<ffffffff815b093b>] bit_wait_io+0x1b/0x70 [ 601.353440] [<ffffffff815b056d>] __wait_on_bit+0x5d/0x90 [ 601.353689] [<ffffffff81127bd0>] wait_on_page_bit+0xc0/0xd0 [ 601.353958] [<ffffffff81096db0>] ? autoremove_wake_function+0x40/0x40 [ 601.354200] [<ffffffff81127cc4>] __filemap_fdatawait_range+0xe4/0x140 [ 601.354441] [<ffffffff81127d34>] filemap_fdatawait_range+0x14/0x30 [ 601.354688] [<ffffffff81129a9f>] filemap_write_and_wait_range+0x3f/0x70 [ 601.354932] [<ffffffff811ced3b>] blkdev_fsync+0x1b/0x50 [ 601.355193] [<ffffffff811c82d9>] vfs_fsync_range+0x49/0xa0 [ 601.355432] [<ffffffff811cf45a>] blkdev_write_iter+0xca/0x100 [ 601.355679] [<ffffffff81197b1a>] __vfs_write+0xaa/0xe0 [ 601.355925] [<ffffffff81198379>] vfs_write+0xa9/0x1a0 [ 601.356164] [<ffffffff811c59d8>] kernel_write+0x38/0x50 The underlying device is a null_blk, with default parameters: queue_mode = MQ submit_queues = 1 Verification that nullb0 has something inflight: root@pserver8:~# cat /sys/block/nullb0/inflight 0 1 root@pserver8:~# find /sys/block/nullb0/mq/0/cpu* -name rq_list -print -exec cat {} \; ... /sys/block/nullb0/mq/0/cpu2/rq_list CTX pending: ffff8838038e2400 ... During debug it became clear that stalled request is always inserted in the rq_list from the following path: save_stack_trace_tsk + 34 blk_mq_insert_requests + 231 blk_mq_flush_plug_list + 281 blk_flush_plug_list + 199 wait_on_page_bit + 192 __filemap_fdatawait_range + 228 filemap_fdatawait_range + 20 filemap_write_and_wait_range + 63 blkdev_fsync + 27 vfs_fsync_range + 73 blkdev_write_iter + 202 __vfs_write + 170 vfs_write + 169 kernel_write + 56 So blk_flush_plug_list() was called with from_schedule == true. If from_schedule is true, that means that finally blk_mq_insert_requests() offloads execution of __blk_mq_run_hw_queue() and uses kblockd workqueue, i.e. it calls kblockd_schedule_delayed_work_on(). That means, that we race with another CPU, which is about to execute __blk_mq_run_hw_queue() work. Further debugging shows the following traces from different CPUs: CPU#0 CPU#1 ---------------------------------- ------------------------------- reqeust A inserted STORE hctx->ctx_map[0] bit marked kblockd_schedule...() returns 1 <schedule to kblockd workqueue> request B inserted STORE hctx->ctx_map[1] bit marked kblockd_schedule...() returns 0 *** WORK PENDING bit is cleared *** flush_busy_ctxs() is executed, but bit 1, set by CPU#1, is not observed As a result request B pended forever. This behaviour can be explained by speculative LOAD of hctx->ctx_map on CPU#0, which is reordered with clear of PENDING bit and executed _before_ actual STORE of bit 1 on CPU#1. The proper fix is an explicit full barrier <mfence>, which guarantees that clear of PENDING bit is to be executed before all possible speculative LOADS or STORES inside actual work function. Signed-off-by: Roman Pen <roman.penyaev@profitbricks.com> Cc: Gioh Kim <gi-oh.kim@profitbricks.com> Cc: Michael Wang <yun.wang@profitbricks.com> Cc: Tejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: linux-block@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-26regulator: axp20x: Fix LDO4 linear voltage rangeMaxime Ripard
The current linear voltage range for the LDO4 regulator found in the APX20X PMICs assumes that the voltage is linear between 2.5 and 3.1V. However, the PMIC can output up to 3.3V on that regulator by skipping the 2.6V and 2.9V steps. Fix the ranges to read and set the proper voltages. Fixes: 13d57e64352a ("regulator: axp20x: Use linear voltage ranges for AXP20X LDO4") Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-26NVMe: small typo in section BLK_DEV_NVME_SCSI of host/KconfigWang Sheng-Hui
"as well as " is miss typed "as well a " in section "config BLK_DEV_NVME_SCSI" Signed-off-by: Wang Sheng-Hui <shhuiw@foxmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-04-26nvme: fix cntlid typeChristoph Hellwig
Controller IDs in NVMe are unsigned 16-bit types. In the Fabrics driver we actually pass ctrl->id by reference, so we need it to have the correct type. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-04-26perf probe: Close target file on error pathMasami Hiramatsu
Fix a bug to close target elf file in get_text_start_address(). Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20160426064737.1443.44093.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-26perf evlist: Enforce ring buffer readingWang Nan
Don't read broken data after 'head' pointer. Following commits will feed perf_evlist__mmap_read() with some 'head' pointers not maintained by kernel. If 'head' pointer breaks an event, we should avoid reading from the broken event. This can happen in backward ring buffer. For example: old head | | V V +---+------+----------+----+-----+--+ |..E|D....D|C........C|B..B|A....|E.| +---+------+----------+----+-----+--+ 'old' pointer points to the beginning of 'A' and trying read from it, but 'A' has been overwritten. In this case, don't try to read from 'A', simply return NULL. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461637738-62722-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-26arm64: acpi: add acpi=on cmdline option to prefer ACPI boot over DTArd Biesheuvel
If both ACPI and DT platform descriptions are available, and the kernel was configured at build time to support both flavours, the default policy is to prefer DT over ACPI, and preferring ACPI over DT while still allowing DT as a fallback is not possible. Since some enterprise features (such as RAS) depend on ACPI, it may be desirable for, e.g., distro installers to prefer ACPI boot but fall back to DT rather than failing completely if no ACPI tables are available. So introduce the 'acpi=on' kernel command line parameter for arm64, which signifies that ACPI should be used if available, and DT should only be used as a fallback. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26arm64: relocatable: deal with physically misaligned kernel imagesArd Biesheuvel
When booting a relocatable kernel image, there is no practical reason to refuse an image whose load address is not exactly TEXT_OFFSET bytes above a 2 MB aligned base address, as long as the physical and virtual misalignment with respect to the swapper block size are equal, and are both aligned to THREAD_SIZE. Since the virtual misalignment is under our control when we first enter the kernel proper, we can simply choose its value to be equal to the physical misalignment. So treat the misalignment of the physical load address as the initial KASLR offset, and fix up the remaining code to deal with that. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26arm64: don't map TEXT_OFFSET bytes below the kernel if we can avoid itArd Biesheuvel
For historical reasons, the kernel Image must be loaded into physical memory at a 512 KB offset above a 2 MB aligned base address. The region between the base address and the start of the kernel Image has no significance to the kernel itself, but it is currently mapped explicitly into the early kernel VMA range for all translation granules. In some cases (i.e., 4 KB granule), this is unavoidable, due to the 2 MB granularity of the early kernel mappings. However, in other cases, e.g., when running with larger page sizes, or in the future, with more granular KASLR, there is no reason to map it explicitly like we do currently. So update the logic so that the region is mapped only if that happens as a side effect of rounding the start address of the kernel to swapper block size, and leave it unmapped otherwise. Since the symbol kernel_img_size now simply resolves to the memory footprint of the kernel Image, we can drop its definition from image.h and opencode its calculation. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26arm64: kernel: replace early 64-bit literal loads with move-immediatesArd Biesheuvel
When building a relocatable kernel, we currently rely on the fact that early 64-bit literal loads need to be deferred to after the relocation has been performed only if they involve symbol references, and not if they involve assemble time constants. While this is not an unreasonable assumption to make, it is better to switch to movk/movz sequences, since these are guaranteed to be resolved at link time, simply because there are no dynamic relocation types to describe them. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26arm64: introduce mov_q macro to move a constant into a 64-bit registerArd Biesheuvel
Implement a macro mov_q that can be used to move an immediate constant into a 64-bit register, using between 2 and 4 movz/movk instructions (depending on the operand) Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26arm64: kernel: perform relocation processing from ID mapArd Biesheuvel
Refactor the relocation processing so that the code executes from the ID map while accessing the relocation tables via the virtual mapping. This way, we can use literals containing virtual addresses as before, instead of having to use convoluted absolute expressions. For symmetry with the secondary code path, the relocation code and the subsequent jump to the virtual entry point are implemented in a function called __primary_switch(), and __mmap_switched() is renamed to __primary_switched(). Also, the call sequence in stext() is aligned with the one in secondary_startup(), by replacing the awkward 'adr_l lr' and 'b cpu_setup' sequence with a simple branch and link. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26arm64: kernel: use literal for relocated address of __secondary_switchedArd Biesheuvel
We can simply use a relocated 64-bit literal to store the address of __secondary_switched(), and the relocation code will ensure that it holds the correct value at secondary entry time, as long as we make sure that the literal is not dereferenced until after we have enabled the MMU. So jump via a small __secondary_switch() function covered by the ID map that performs the literal load and branch-to-register. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26arm64: kernel: don't export local symbols from head.SArd Biesheuvel
This unexports some symbols from head.S that are only used locally. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-26Merge ath-next from ath.gitKalle Valo
ath.git patches for 4.7. Major changes: ath10k * implement set_tsf() for 10.2.4 branch * remove rare MSI range support * remove deprecated firmware API 1 support ath9k * add module parameter to invert LED polarity wcn36xx * fixes to get the driver properly working on Dragonboard 410c
2016-04-26i40e: Code cleanup in i40e_add_fdir_ethtoolShannon Nelson
A little bit of code cleanup in prep for more cloud filter work. Change-ID: I0dc33ce0d4c207944336a07437640fef920c100c Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-26drivers: firmware: psci: unify enable-method binding on ARM {64,32}-bit systemsSudeep Holla
Currently ARM CPUs DT bindings allows different enable-method value for PSCI based systems. On ARM 64-bit this property is required and must be "psci" while on ARM 32-bit systems this property is optional and must be "arm,psci" if present. However, "arm,psci" has always been the compatible string for the PSCI node, and was never intended to be the enable-method. So this is a bug in the binding and not a deliberate attempt at specifying 32-bit differently. This is problematic if 32-bit OS is run on 64-bit system which has "psci" as enable-method rather than the expected "arm,psci". So let's unify the value into "psci" and remove support for "arm,psci" before it finds any users. Reported-by: Soby Mathew <Soby.Mathew@arm.com> Cc: Rob Herring <robh+dt@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-04-26i40evf: Don't PanicMitch Williams
Under some circumstances the driver remove function may be called before the driver is fully initialized. So we can't assume that we know where our towel is at, or that all of the data structures are initialized. To ensure that we don't panic, check that the vsi_res pointer is valid before dereferencing it. Then drink beer and eat peanuts. Change-ID: If697b4db57348e39f9538793e16aa755e3e1af03 Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-26i40e: Add support for configuring VF RSSMitch Williams
Add support for configuring RSS on behalf of the VFs. This removes the burden of dealing with different hardware interfaces from the VF drivers, allowing for better future compatibility. Change-ID: Icea75d3f37241ee8e447be5779e5abb53ddf04c0 Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-26i40e/i40evf: Add support for IPIP and SIT offloadsAlexander Duyck
Looking over the documentation it turns out enabling IPIP and SIT offloads for i40e is pretty straightforward. As such I decided to enable them with this patch. In my testing I am seeing an improvement of 8 to 10 Gb/s for IPIP and SIT tunnels with this offload enabled. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-26i40e/i40evf: Clean up feature flagsAlexander Duyck
The feature flags list for i40e and i40evf is beginning to become pretty massive. I plan to add another 4 or so features to these drivers and duplicating the flags for each and every flags list is becoming a bit repetitive. The primary change here is that we now build our features list around hw_encap_features. After that we assign that to vlan_features, hw_features, and finally map that onto features. In addition we end up throwing features onto hw_encap_features that end up having no effect such as the Rx offloads and SCTP_CRC. However that should have no impact and makes things a bit easier for us as hw_encap_features is one of the less updated features maps available. For i40evf I went through and sanity checked a few features as well. Specifically RXCSUM was being set as a read-only feature which didn't make much sense. I have updated things so we can clear the NETIF_F_RXCSUM flag since that is really a software feature and not a hardware one anyway so disabling it is just a matter of ignoring the result from the hardware. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-26spi: pxa2xx: Do not detect number of enabled chip selects on Intel SPTJarkko Nikula
Certain Intel Sunrisepoint PCH variants report zero chip selects in SPI capabilities register even they have one per port. Detection in pxa2xx_spi_probe() sets master->num_chipselect to 0 leading to -EINVAL from spi_register_master() where chip select count is validated. Fix this by not using SPI capabilities register on Sunrisepoint. They don't have more than one chip select so use the default value 1 instead of detection. Fixes: 8b136baa5892 ("spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals") Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2016-04-26regulator: rk808: remove unused rk808_reg_ops_rangesArnd Bergmann
After removing all uses of the range operations in a recent patch, we get a warning about the symbol not being referenced anywhere: drivers/regulator/rk808-regulator.c:306:29: 'rk808_reg_ops_ranges' defined but not used This removes the now-unused structure along with the rk808_set_suspend_voltage_range function that is only referenced from rk808_reg_ops_ranges. Fixes: afcd666d9db0 ("regulator: rk808: remove linear range definitions with a single range") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-26iwlwifi: fix fw version reading for DVM devicesLuca Coelho
In commit 97f95c93c8ed ("iwlwifi: remove support for fw older than -16.ucode") we accidentally changed the fw version reading code for DVM devices. The code intended to remove the old fw version API, because all MVM firmwares version 16 and above that we support don't use it anymore. But DVM devices still use the old FW API. Fix that by bringing the code back in. Reported-by: Pat Erley <pat-lkml@erley.org> Tested-by: Kalle Valo <kvalo@codeaurora.org> Fixes: 97f95c93c8ed ("iwlwifi: remove support for fw older than-16.ucode") Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rt2800lib: enable MFP if hw crypt is disabledChun-Yeow Yeoh
If rt2800usb is loaded with nohwcrypt=1, mac80211 takes care of the crypto with software encryption/decryption and thus, MFP can be used. Tested for secured mesh using ath9k_htc and ath9k. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26brcmfmac: testing the wrong variable in brcmf_rx_hdrpull()Dan Carpenter
Smatch complains about this code: drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c:335 brcmf_rx_hdrpull() error: we previously assumed '*ifp' could be null (see line 333) The problem is that we recently changed these from "ifp" to "*ifp" but there was one that we didn't update. - if (ret || !ifp || !ifp->ndev) { + if (ret || !(*ifp) || !(*ifp)->ndev) { if (ret != -ENODATA && ifp) ^^^ - ifp->stats.rx_errors++; + (*ifp)->stats.rx_errors++; I have updated it to *ifp as well. We always call this function is a non-NULL "ifp" pointer, btw. Fixes: c462ebcdfe42 ('brcmfmac: create common function for handling brcmf_proto_hdrpull()') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26mwifiex: fix loop timeout in mwifiex_prog_fw_w_helper()Dan Carpenter
USB8XXX_FW_MAX_RETRY is 3. We were using a post-op loop "while (retries--) {" but then the lines after that assume the loop exits with retries set to zero. I've fixed this by changing to a pre-op loop. I started with retries set to 4 instead of 3 so that we still go through the loop the same number of times. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26mwifiex: missing error code on allocation failureDan Carpenter
We accidentally return success instead of -ENOMEM. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723au_iqk_phy_iq_bb_regJes Sorensen
There is nothing 8723au specific about rtl8723au_iqk_phy_iq_bb_reg so rename the array to rtl8xxxu_iqk_phy_iq_bb_reg. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723bu_simularity_compare()Jes Sorensen
This renames rtl8723bu_simularity_compare() to rtl8xxxu_gen2_simularity_compare() to reflect it is used for all gen2 parts. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723b_channel_to_group()Jes Sorensen
This renames rtl8723b_channel_to_group() to rtl8xxxu_gen2_channel_to_group() to reflect it is used by all currently supported gen2 parts. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723a_mac_init_table to rtl8xxxu_gen1_mac_init_tableJes Sorensen
All currently supported gen1 parts use the same mac_init_table, so rename it to reflect this. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723a_enable_rf() to rtl8xxxu_gen1_enable_rf()Jes Sorensen
All gen1 parts use the same enable_rf() function, so rename it to reflect this. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723a_set_tx_power() to rtl8xxxu_gen1_set_tx_power()Jes Sorensen
All gen1 parts use the same interface for setting TX power, so rename the function to reflect this. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723au_init_phy_bb() to rtl8xxxu_gen1_init_phy_bb()Jes Sorensen
All gen1 parts use the same init_phy_bb() function, so rename it to reflect this. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723au_phy_iq_calibrate() to ↵Jes Sorensen
rtl8xxxu_gen1_phy_iq_calibrate() All supported gen1 parts use the same phy_iq_calibrate() function (unlike their gen2 counterparts). Rename the function to reflect this. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-26rtl8xxxu: Rename rtl8723au_update_rate_mask() to rtl8xxxu_update_rate_mask()Jes Sorensen
All currently supported gen1 parts use the same function for updating the rate mask, so rename it to reflect this. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>