- 12 Dec, 2017 3 commits
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Eric Dumazet authored
Back in linux-3.13 (commit b0983d3c ("tcp: fix dynamic right sizing")) I addressed the pressing issues we had with receiver autotuning. But DRS suffers from extra latencies caused by rcv_rtt_est.rtt_us drifts. One common problem happens during slow start, since the apparent RTT measured by the receiver can be inflated by ~50%, at the end of one packet train. Also, a single drop can delay read() calls by one RTT, meaning tcp_rcv_space_adjust() can be called one RTT too late. By replacing the tri-modal heuristic with a continuous function, we can offset the effects of not growing 'at the optimal time'. The curve of the function matches prior behavior if the space increased by 25% and 50% exactly. Cost of added multiply/divide is small, considering a TCP flow typically would run this part of the code few times in its life. I tested this patch with 100 ms RTT / 1% loss link, 100 runs of (netperf -l 5), and got an average throughput of 4600 Mbit instead of 1700 Mbit. Signed-off-by:
Eric Dumazet <edumazet@google.com> Acked-by:
Soheil Hassas Yeganeh <soheil@google.com> Acked-by:
Wei Wang <weiwan@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
When using large tcp_rmem[2] values (I did tests with 500 MB), I noticed overflows while computing rcvwin. Lets fix this before the following patch. Signed-off-by:
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Eric Dumazet authored
While rcvbuf is properly clamped by tcp_rmem[2], rcvwin is left to a potentially too big value. It has no serious effect, since : 1) tcp_grow_window() has very strict checks. 2) window_clamp can be mangled by user space to any value anyway. tcp_init_buffer_space() and companions use tcp_full_space(), we use tcp_win_from_space() to avoid reloading sk->sk_rcvbuf Signed-off-by:
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- 11 Dec, 2017 30 commits
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Zhu Yanjun authored
Since both tx_ring and first_tx are the head of tx ring, it not necessary to use two structure members to statically indicate the head of tx ring. So first_tx is removed. CC: Srinivas Eeda <srinivas.eeda@oracle.com> CC: Joe Jin <joe.jin@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by:
Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by:
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David S. Miller authored
Jakub Kicinski says: ==================== nfp: dead code, clean ups and slight improvements This series contains small clean ups from John and Carl, and brings no functional changes. John's improvements target the flower code. First he makes sure we don't allocate space in FW request messages for MAC matches if the TC rule does not contain any. The remaining two patches remove some dead code and unused defines. Carl follows up with a slight optimization to his recent ethtool FW state dumps, byte swapping input parameters once instead of the data for every dumped item. ==================== Signed-off-by: -
Carl Heymann authored
Convert the requested dump level parameter to big-endian at the start of nfp_net_dump_calculate_size() and nfp_net_dump_populate_buffer(), then compare and assign it directly where needed in the traversal and prolog code. This decreases the total number of conversions used. Signed-off-by:
Carl Heymann <carl.heymann@netronome.com> Reviewed-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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John Hurley authored
Delete match field defines that are not supported at this time. Signed-off-by:
John Hurley <john.hurley@netronome.com> Reviewed-by:
Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by:
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John Hurley authored
Port matching is selected by default on every rule so remove check for it and delete 'else' side of the statement. Remove nfp_flower_meta_one as now it will not feature in the code. Rename nfp_flower_meta_two given that one has been removed. 'Additional metadata' if statement can never be true so remove it as well. Signed-off-by:
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John Hurley authored
Remove the matching of mac/mpls as a default selection. These are not necessarily set by a TC rule (unlike the port). Previously a mac/mpls field would exist in every match and be masked out if not used. This patch has no impact on functionality but removes unnessary memory assignment in the match cmsg. Signed-off-by:
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Fabio Estevam authored
The GPIO polarity passed to phy-reset-gpio is ignored by the FEC driver and it is assumed to be active low. It can be active high only when the 'phy-reset-active-high' property is present. The current examples pass active high polarity and work fine, but in order to improve the documentation make it explicit what the real polarity is. Signed-off-by:
Fabio Estevam <fabio.estevam@nxp.com> Acked-by:
Fugang Duan <fugang.duan@nxp.com> Signed-off-by:
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David S. Miller authored
Xin Long says: ==================== sctp: Implement Stream Interleave: The I-DATA Chunk Supporting User Message Interleaving Stream Interleave would be Implemented in two Parts: 1. The I-DATA Chunk Supporting User Message Interleaving 2. Interaction with Other SCTP Extensions Overview in section 1.1 of RFC8260 for Part 1: This document describes a new chunk carrying payload data called I-DATA. This chunk incorporates the properties of the current SCTP DATA chunk, all the flags and fields except the Stream Sequence Number (SSN), and also adds two new fields in its chunk header -- the Fragment Sequence Number (FSN) and the Message Identifier (MID). The FSN is only used for reassembling all fragments that have the same MID and the same ordering property. The TSN is only used for the reliable transfer in combination with Selective Acknowledgment (SACK) chunks. In addition, the MID is also used for ensuring ordered delivery instead of using the stream sequence number (the I-DATA chunk omits an SSN). As the 1st part of Stream Interleave Implementation, this patchset adds an ops framework named sctp_stream_interleave with a bunch of stuff that does lots of things needed somewhere. Then it defines sctp_stream_interleave_0 to work for normal DATA chunks and sctp_stream_interleave_1 for I-DATA chunks. With these functions, hundreds of if-else checks for the different process on I-DATA chunks would be avoided. Besides, very few codes could be shared in these two function sets. In this patchset, it adds some basic variables, structures and socket options firstly, then implement these functions one by one to add the procedures for ordered idata gradually, at last adjusts some codes to make them work for unordered idata. To make it safe to be implemented and also not break the normal data chunk process, this feature can't be enabled to use until all stream interleave codes are completely accomplished. v1 -> v2: - fixed a checkpatch warning that a blank line was missed. - avoided a kbuild warning reported from gcc-4.9. ==================== Signed-off-by: -
Xin Long authored
Unordered idata process is more complicated than unordered data: - It has to add mid into sctp_stream_out to save the next mid value, which is separated from ordered idata's. - To support pd for unordered idata, another mid and pd_mode need to be added to save the message id and pd state in sctp_stream_in. - To make unordered idata reasm easier, it adds a new event queue to save frags for idata. The patch mostly adds the samilar reasm functions for unordered idata as ordered idata's, and also adjusts some other codes on assign_mid, abort_pd and ulpevent_data for idata. Signed-off-by:
Xin Long <lucien.xin@gmail.com> Acked-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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Xin Long authored
abort_pd is added as a member of sctp_stream_interleave, used to abort partial delivery for data or idata, called in sctp_cmd_assoc_failed. Since stream interleave allows to do partial delivery for each stream at the same time, sctp_intl_abort_pd for idata would be very different from the old function sctp_ulpq_abort_pd for data. Note that sctp_ulpevent_make_pdapi will support per stream in this patch by adding pdapi_stream and pdapi_seq in sctp_pdapi_event, as described in section 6.1.7 of RFC6458. Signed-off-by:
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Xin Long authored
start_pd is added as a member of sctp_stream_interleave, used to do partial_delivery for data or idata when datalen >= asoc->rwnd in sctp_eat_data. The codes have been done in last patches, but they need to be extracted into start_pd, so that it could be used for SCTP_CMD_PART_DELIVER cmd as well. Signed-off-by:
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Xin Long authored
renege_events is added as a member of sctp_stream_interleave, used to renege some old data or idata in reasm or lobby queue properly to free some memory for the new data when there's memory stress. It defines sctp_renege_events for idata, and leaves sctp_ulpq_renege as it is for data. Signed-off-by:
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Xin Long authored
enqueue_event is added as a member of sctp_stream_interleave, used to enqueue either data, idata or notification events into user socket rx queue. It replaces sctp_ulpq_tail_event used in the other places with enqueue_event. Signed-off-by:
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Xin Long authored
ulpevent_data is added as a member of sctp_stream_interleave, used to do the most process in ulpq, including to convert data or idata chunk to event, reasm them in reasm queue and put them in lobby queue in right order, and deliver them up to user sk rx queue. This procedure is described in section 2.2.3 of RFC8260. It adds most functions for idata here to do the similar process as the old functions for data. But since the details are very different between them, the old functions can not be reused for idata. event->ssn and event->ppid settings are moved to ulpevent_data from sctp_ulpevent_make_rcvmsg, so that sctp_ulpevent_make_rcvmsg could work for both data and idata. Note that mid is added in sctp_ulpevent for idata, __packed has to be used for defining sctp_ulpevent, or it would exceeds the skb cb that saves a sctp_ulpevent variable for ulp layer process. Signed-off-by:
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Xin Long authored
validate_data is added as a member of sctp_stream_interleave, used to validate ssn/chunk type for data or mid (message id)/chunk type for idata, called in sctp_eat_data. If this check fails, an abort packet will be sent, as said in section 2.2.3 of RFC8260. It also adds the process for idata in rx path. As Marcelo pointed out, there's no need to add event table for idata, but just share chunk_event_table with data's. It would drop data chunk for idata and drop idata chunk for data by calling validate_data in sctp_eat_data. As last patch did, it also replaces sizeof(struct sctp_data_chunk) with sctp_datachk_len for rx path. After this patch, the idata can be accepted and delivered to ulp layer. Signed-off-by:
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Xin Long authored
assign_number is added as a member of sctp_stream_interleave, used to assign ssn for data or mid (message id) for idata, called in sctp_packet_append_data. sctp_chunk_assign_ssn is left as it is, and sctp_chunk_assign_mid is added for sctp_stream_interleave_1. This procedure is described in section 2.2.2 of RFC8260. All sizeof(struct sctp_data_chunk) in tx path is replaced with sctp_datachk_len, to make it right for idata as well. And also adjust sctp_chunk_is_data for SCTP_CID_I_DATA. After this patch, idata can be built and sent in tx path. Note that if sp strm_interleave is set, it has to wait_connect in sctp_sendmsg, as asoc intl_enable need to be known after 4 shake- hands, to decide if it should use data or idata later. data and idata can't be mixed to send in one asoc. Signed-off-by:
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Xin Long authored
To avoid hundreds of checks for the different process on I-DATA chunk, struct sctp_stream_interleave is defined as a group of functions used to replace the codes in some place where it needs to do different job according to if the asoc intl_enabled is set. With these ops, it only needs to initialize asoc->stream.si with sctp_stream_interleave_0 for normal data if asoc intl_enable is 0, or sctp_stream_interleave_1 for idata if asoc intl_enable is set in sctp_stream_init. After that, the members in asoc->stream.si can be used directly in some special places without checking asoc intl_enable. make_datafrag is the first member for sctp_stream_interleave, it's used to make data or idata frags, called in sctp_datamsg_from_user. The old function sctp_make_datafrag_empty needs to be adjust some to fit in this ops. Note that as idata and data chunks have different length, it also defines data_chunk_len for sctp_stream_interleave to describe the chunk size. Signed-off-by:
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Xin Long authored
sctp_idatahdr and sctp_idata_chunk are used to define and parse I-DATA chunk format, and sctp_make_idata is a function to build the chunk. The I-DATA Chunk Format is defined in section 2.1 of RFC8260. Signed-off-by:
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Xin Long authored
asoc intl_enable will be set when local sp strm_interleave is set and there's I-DATA chunk in init and init_ack extensions, as said in section 2.2.1 of RFC8260. asoc intl_enable indicates all data will be sent as I-DATA chunks. Signed-off-by:
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Xin Long authored
This patch adds intl_enable in asoc and netns, and strm_interleave in sctp_sock to indicate if stream interleave is enabled and supported. netns intl_enable would be set via procfs, but that is not added yet until all stream interleave codes are completely implemented; asoc intl_enable will be set when doing 4-shakehands. sp strm_interleave can be set by sockopt SCTP_INTERLEAVING_SUPPORTED which is also added in this patch. This socket option is defined in section 4.3.1 of RFC8260. Note that strm_interleave can only be set by sockopt when both netns intl_enable and sp frag_interleave are set. Signed-off-by:
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Mahesh Bandewar authored
Packets that don't have dest mac as the mac of the master device should not be entertained by the IPvlan rx-handler. This is mostly true as the packet path mostly takes care of that, except when the master device is a virtual device. As demonstrated in the following case - ip netns add ns1 ip link add ve1 type veth peer name ve2 ip link add link ve2 name iv1 type ipvlan mode l2 ip link set dev iv1 netns ns1 ip link set ve1 up ip link set ve2 up ip -n ns1 link set iv1 up ip addr add 192.168.10.1/24 dev ve1 ip -n ns1 addr 192.168.10.2/24 dev iv1 ping -c2 192.168.10.2 <Works!> ip neigh show dev ve1 ip neigh show 192.168.10.2 lladdr <random> dev ve1 ping -c2 192.168.10.2 <Still works! Wrong!!> This patch adds that missing check in the IPvlan rx-handler. Reported-by:
Amit Sikka <amit.sikka@ericsson.com> Signed-off-by:
Mahesh Bandewar <maheshb@google.com> Signed-off-by:
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Cong Wang authored
Both netlink_add_tap() and netlink_remove_tap() are called in process context, no need to bother spinlock. Note, in fact, currently we always hold RTNL when calling these two functions, so we don't need any other lock at all, but keeping this lock doesn't harm anything. Cc: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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Cong Wang authored
nlmon device is not supposed to capture netlink events from other netns, so instead of filtering events, we can simply make netlink tap itself per netns. Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Kevin Cernekee <cernekee@chromium.org> Signed-off-by:
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David S. Miller authored
Tom Herbert says: ==================== rhashtable: New features in walk and bucket This patch contains some changes to related rhashtable: - Above allow rhashtable_walk_start to return void - Add a functon to peek at the next entry during a walk - Abstract out function to compute a has for a table - A library function to alloc a spinlocks bucket array - Call the above function for rhashtable locks allocation Tested: Exercised using various operations on an ILA xlat table. v2: - Apply feedback from Herbert. Don't change semantics of resize event reporting and -EAGAIN, just simplify API for callers that ignore those. - Add end_of_table in iter to reliably tell when the iterator has reached to the eno. ==================== Signed-off-by: -
Tom Herbert authored
To allocate the array of bucket locks for the hash table we now call library function alloc_bucket_spinlocks. This function is based on the old alloc_bucket_locks in rhashtable and should produce the same effect. Signed-off-by:
Tom Herbert <tom@quantonium.net> Signed-off-by:
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Tom Herbert authored
Add two new library functions: alloc_bucket_spinlocks and free_bucket_spinlocks. These are used to allocate and free an array of spinlocks that are useful as locks for hash buckets. The interface specifies the maximum number of spinlocks in the array as well as a CPU multiplier to derive the number of spinlocks to allocate. The number allocated is rounded up to a power of two to make the array amenable to hash lookup. Signed-off-by:
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Tom Herbert authored
Split out most of rht_key_hashfn which is calculating the hash into its own function. This way the hash function can be called separately to get the hash value. Acked-by:
Thomas Graf <tgraf@suug.ch> Signed-off-by:
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Tom Herbert authored
This function is like rhashtable_walk_next except that it only returns the current element in the inter and does not advance the iter. This patch also creates __rhashtable_walk_find_next. It finds the next element in the table when the entry cached in iter is NULL or at the end of a slot. __rhashtable_walk_find_next is called from rhashtable_walk_next and rhastable_walk_peek. end_of_table is an added field to the iter structure. This indicates that the end of table was reached (walker.tbl being NULL is not a sufficient condition for end of table). Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Tom Herbert authored
Most callers of rhashtable_walk_start don't care about a resize event which is indicated by a return value of -EAGAIN. So calls to rhashtable_walk_start are wrapped wih code to ignore -EAGAIN. Something like this is common: ret = rhashtable_walk_start(rhiter); if (ret && ret != -EAGAIN) goto out; Since zero and -EAGAIN are the only possible return values from the function this check is pointless. The condition never evaluates to true. This patch changes rhashtable_walk_start to return void. This simplifies code for the callers that ignore -EAGAIN. For the few cases where the caller cares about the resize event, particularly where the table can be walked in mulitple parts for netlink or seq file dump, the function rhashtable_walk_start_check has been added that returns -EAGAIN on a resize event. Signed-off-by: -
Stephen Hemminger authored
Fixes: 46e6b992 ("rtnetlink: allow GSO maximums to be set on device creation") Signed-off-by:
Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by:
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- 10 Dec, 2017 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Conflict was two parallel additions of include files to sch_generic.c, no biggie. Signed-off-by:
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- 08 Dec, 2017 6 commits
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Michal Hocko authored
Commit 4675ff05 ("kmemcheck: rip it out") has removed the code but for some reason SPDX header stayed in place. This looks like a rebase mistake in the mmotm tree or the merge mistake. Let's drop those leftovers as well. Signed-off-by:
Michal Hocko <mhocko@suse.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) CAN fixes from Martin Kelly (cancel URBs properly in all the CAN usb drivers). 2) Revert returning -EEXIST from __dev_alloc_name() as this propagates to userspace and broke some apps. From Johannes Berg. 3) Fix conn memory leaks and crashes in TIPC, from Jon Malloc and Cong Wang. 4) Gianfar MAC can't do EEE so don't advertise it by default, from Claudiu Manoil. 5) Relax strict netlink attribute validation, but emit a warning. From David Ahern. 6) Fix regression in checksum offload of thunderx driver, from Florian Westphal. 7) Fix UAPI bpf issues on s390, from Hendrik Brueckner. 8) New card support in iwlwifi, from Ihab Zhaika. 9) BBR congestion control bug fixes from Neal Cardwell. 10) Fix port stats in nfp driver, from Pieter Jansen van Vuuren. 11) Fix leaks in qualcomm rmnet, from Subash Abhinov Kasiviswanathan. 12) Fix DMA API handling in sh_eth driver, from Thomas Petazzoni. 13) Fix spurious netpoll warnings in bnxt_en, from Calvin Owens. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (67 commits) net: mvpp2: fix the RSS table entry offset tcp: evaluate packet losses upon RTT change tcp: fix off-by-one bug in RACK tcp: always evaluate losses in RACK upon undo tcp: correctly test congestion state in RACK bnxt_en: Fix sources of spurious netpoll warnings tcp_bbr: reset long-term bandwidth sampling on loss recovery undo tcp_bbr: reset full pipe detection on loss recovery undo tcp_bbr: record "full bw reached" decision in new full_bw_reached bit sfc: pass valid pointers from efx_enqueue_unwind gianfar: Disable EEE autoneg by default tcp: invalidate rate samples during SACK reneging can: peak/pcie_fd: fix potential bug in restarting tx queue can: usb_8dev: cancel urb on -EPIPE and -EPROTO can: kvaser_usb: cancel urb on -EPIPE and -EPROTO can: esd_usb2: cancel urb on -EPIPE and -EPROTO can: ems_usb: cancel urb on -EPIPE and -EPROTO can: mcba_usb: cancel urb on -EPROTO usbnet: fix alignment for frames with no ethernet header tcp: use current time in tcp_rcv_space_adjust() ... -
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media fixes from Mauro Carvalho Chehab: "A series of fixes for the media subsytem: - The largest amount of fixes in this series is with regards to comments that aren't kernel-doc, but start with "/**". A new check added for 4.15 makes it to produce a *huge* amount of new warnings (I'm compiling here with W=1). Most of the patches in this series fix those. No code changes - just comment changes at the source files - rc: some fixed in order to better handle RC repetition codes - v4l-async: use the v4l2_dev from the root notifier when matching sub-devices - v4l2-fwnode: Check subdev count after checking port - ov 13858 and et8ek8: compilation fix with randconfigs - usbtv: a trivial new USB ID addition - dibusb-common: don't do DMA on stack on firmware load - imx274: Fix error handling, add MAINTAINERS entry - sir_ir: detect presence of port" * tag 'media/v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (50 commits) media: imx274: Fix error handling, add MAINTAINERS entry media: v4l: async: use the v4l2_dev from the root notifier when matching sub-devices media: v4l2-fwnode: Check subdev count after checking port media: et8ek8: select V4L2_FWNODE media: ov13858: Select V4L2_FWNODE media: rc: partial revert of "media: rc: per-protocol repeat period" media: dvb: i2c transfers over usb cannot be done from stack media: dvb-frontends: complete kernel-doc markups media: docs: add documentation for frontend attach info media: dvb_frontends: fix kernel-doc macros media: drivers: remove "/**" from non-kernel-doc comments media: lm3560: add a missing kernel-doc parameter media: rcar_jpu: fix two kernel-doc markups media: vsp1: add a missing kernel-doc parameter media: soc_camera: fix a kernel-doc markup media: mt2063: fix some kernel-doc warnings media: radio-wl1273: fix a parameter name at kernel-doc macro media: s3c-camif: add missing description at s3c_camif_find_format() media: mtk-vpu: add description for wdt fields at struct mtk_vpu media: vdec: fix some kernel-doc warnings ... -
git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "This pull is a bit larger than I'd like but a large bunch of it is license fixes, AMD wanted to fix the licenses for a bunch of files that were missing them, Otherwise a bunch of TTM regression fix since the hugepage support, some i915 and gvt fixes, a core connector free in a safe context fix, and one bridge fix" * tag 'drm-fixes-for-v4.15-rc3' of git://people.freedesktop.org/~airlied/linux: (26 commits) drm/bridge: analogix dp: Fix runtime PM state in get_modes() callback Revert "drm/i915: Display WA #1133 WaFbcSkipSegments:cnl, glk" drm/vc4: Fix false positive WARN() backtrace on refcount_inc() usage drm/i915: Call i915_gem_init_userptr() before taking struct_mutex drm/exynos: remove unnecessary function declaration drm/exynos: remove unnecessary descrptions drm/exynos: gem: Drop NONCONTIG flag for buffers allocated without IOMMU drm/exynos: Fix dma-buf import drm/ttm: swap consecutive allocated pooled pages v4 drm: safely free connectors from connector_iter drm/i915/gvt: set max priority for gvt context drm/i915/gvt: Don't mark vgpu context as inactive when preempted drm/i915/gvt: Limit read hw reg to active vgpu drm/i915/gvt: Export intel_gvt_render_mmio_to_ring_id() drm/i915/gvt: Emulate PCI expansion ROM base address register drm/ttm: swap consecutive allocated cached pages v3 drm/ttm: roundup the shrink request to prevent skip huge pool drm/ttm: add page order support in ttm_pages_put drm/ttm: add set_pages_wb for handling page order more than zero drm/ttm: add page order in page pool ...
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git://git.kernel.org/pub/scm/linux/kernel/git/shli/mdLinus Torvalds authored
Pull md fixes from Shaohua Li: "Some MD fixes. The notable one is a raid5-cache deadlock bug with dm-raid, others are not significant" * tag 'md/4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md/raid1/10: add missed blk plug md: limit mdstat resync progress to max_sectors md/r5cache: move mddev_lock() out of r5c_journal_mode_set() md/raid5: correct degraded calculation in raid5_error
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Linus Torvalds authored
Merge tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: "Another set of DT fixes: - Fixes from overlay code rework. A trifecta of fixes to the locking, an out of bounds access, and a memory leak in of_overlay_apply() - Clean-up at25 eeprom binding document - Remove leading '0x' in unit-addresses from binding docs" * tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: overlay: Make node skipping in init_overlay_changeset() clearer of: overlay: Fix out-of-bounds write in init_overlay_changeset() of: overlay: Fix (un)locking in of_overlay_apply() of: overlay: Fix memory leak in of_overlay_apply() error path dt-bindings: eeprom: at25: Document device-specific compatible values dt-bindings: eeprom: at25: Grammar s/are can/can/ dt-bindings: Remove leading 0x from bindings notation of: overlay: Remove else after goto of: Spelling s/changset/changeset/ of: unittest: Remove bogus overlay mutex release from overlay_data_add()
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