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2021-05-04nvme: add nvme_get_ns helperKanchan Joshi1-2/+7
Add a helper to avoid opencoding ns->kref increment. Decrement is already done via nvme_put_ns helper. Signed-off-by: Kanchan Joshi <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]>
2021-05-04nvme: fix controller ioctl through ns_headMinwoo Im3-47/+41
In multipath case, we should consider namespace attachment with controllers in a subsystem when we find out the live controller for the namespace. This patch manually reverted the commit 3557a4409701 ("nvme: don't bother to look up a namespace for controller ioctls") with few more updates to nvme_ns_head_chr_ioctl which has been newly updated. Fixes: 3557a4409701 ("nvme: don't bother to look up a namespace for controller ioctls") Cc: Christoph Hellwig <[email protected]> Signed-off-by: Minwoo Im <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]>
2021-05-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller6-30/+52
Daniel Borkmann says: ==================== pull-request: bpf 2021-05-04 The following pull-request contains BPF updates for your *net* tree. We've added 5 non-merge commits during the last 4 day(s) which contain a total of 6 files changed, 52 insertions(+), 30 deletions(-). The main changes are: 1) Fix libbpf overflow when processing BPF ring buffer in case of extreme application behavior, from Brendan Jackman. 2) Fix potential data leakage of uninitialized BPF stack under speculative execution, from Daniel Borkmann. 3) Fix off-by-one when validating xsk pool chunks, from Xuan Zhuo. 4) Fix snprintf BPF selftest with a pid filter to avoid racing its output test buffer, from Florent Revest. ==================== Signed-off-by: David S. Miller <[email protected]>
2021-05-04powerpc/64s/radix: Enable huge vmalloc mappingsNicholas Piggin3-5/+16
This reduces TLB misses by nearly 30x on a `git diff` workload on a 2-node POWER9 (59,800 -> 2,100) and reduces CPU cycles by 0.54%, due to vfs hashes being allocated with 2MB pages. Signed-off-by: Nicholas Piggin <[email protected]> Reviewed-by: Christophe Leroy <[email protected]> Acked-by: Michael Ellerman <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-03dt-bindings: display: renesas,du: Add missing power-domains propertyGeert Uytterhoeven1-0/+3
"make dtbs_check" complains: arch/arm/boot/dts/r8a7779-marzen.dt.yaml: display@fff80000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+' arch/arm64/boot/dts/renesas/r8a77970-v3msk.dt.yaml: display@feb00000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+' arch/arm64/boot/dts/renesas/r8a77970-eagle.dt.yaml: display@feb00000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+' arch/arm64/boot/dts/renesas/r8a77980-condor.dt.yaml: display@feb00000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+' arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dt.yaml: display@feb00000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+' Fix this by documenting the power-domains property. Fixes: 99d66127fad25ebb ("dt-bindings: display: renesas,du: Convert binding to YAML") Signed-off-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Link: https://lore.kernel.org/r/600d42256515f180bc84b72e8bdb5c5d9126ab62.1619700459.git.geert+renesas@glider.be Signed-off-by: Rob Herring <[email protected]>
2021-05-03Enlisted oprofile version line removedBhaskar Chowdhury1-1/+0
Enlisted oprofile version line removed. Signed-off-by: Bhaskar Chowdhury <[email protected]> Link: https://lore.kernel.org/r/35c4436f0f1b3072d3016148ce1461905b6f782b.1619181632.git.unixbhaskar@gmail.com Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-03oprofiled version output line removed from the listBhaskar Chowdhury1-1/+0
Oprofiled version output line removed from the list. Signed-off-by: Bhaskar Chowdhury <[email protected]> Link: https://lore.kernel.org/r/8d1928ff2fea29d67143d235839a5e845e4402c9.1619181632.git.unixbhaskar@gmail.com Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-03Removed the oprofiled version optionBhaskar Chowdhury1-1/+0
Removed the oprofiled version option Signed-off-by: Bhaskar Chowdhury <[email protected]> Link: https://lore.kernel.org/r/c98fa38b74bdd8ab16d35862895dac5f5a535f94.1619181632.git.unixbhaskar@gmail.com Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-03docs: reporting-issues.rst: CC subsystem and maintainers on regressionsThorsten Leemhuis1-19/+30
When reporting a regression, users ideally should CC the subsystem and its maintainers, as that will ensure they get aware of the regression quickly. And if the culprit is known, they should also CC everyone who signed if off; the text mentioned the latter in once place already, but forgot to do so in two other areas where it's relevant. While fixing this also remind readers to check the mailing list archives for issues that need to be reported to a bug tracker, as someone might have reported it by mail only. All of this got triggered by a recent report where these changes would have made a difference. Signed-off-by: Thorsten Leemhuis <[email protected]> Link: https://lore.kernel.org/lkml/[email protected]/ Link: https://lore.kernel.org/lkml/CAJZ5v0hX2StQVttAciHYH-urUH+Hi92z9z2ZbcNgQPt0E2Jpwg@mail.gmail.com/ Link: https://lore.kernel.org/r/dd13f10c30e79e550215e53a8103406daec4e593.1618482489.git.linux@leemhuis.info Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-03docs: correct URL to bios and kernel developer's guideAnatoly Pugachev1-1/+1
correct URL to bios and kernel developer's guide on amd.com site Signed-off-by: Anatoly Pugachev <[email protected]> Link: https://lore.kernel.org/r/[email protected] [jc: fixed resulting sphinx warning] Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-03ktest: Add KTEST section to MAINTAINERS fileSteven Rostedt (VMware)1-0/+6
As I wanted to add John Hawley as a co-maintainer for ktest, I found that there never was a KTEST section in the MAINTAINERS file. Add one! Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-05-03ktest: Re-arrange the code blocks for better discoverabilityJohn 'Warthog9' Hawley (VMware)1-142/+154
Perl, as with most scripting languages, is fairly flexible in how / where you can define things, and it will (for the most part) do what you would expect it to do. This however can lead to situations, like with ktest, where things get muddled over time. This pushes the variable definitions back up to the top, followed by functions, with the main script executables down at the bottom, INSTEAD of being somewhat mish-mashed together in certain places. This mostly has the advantage of making it more obvious where things are initially defined, what functions are there, and ACTUALLY where the main script starts executing, and should make this a little more approachable. Signed-off-by: John 'Warthog9' Hawley (VMware) <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-05-03ktest: Further consistency cleanupsJohn 'Warthog9' Hawley (VMware)1-49/+36
This cleans up some additional whitespace pieces that to be more consistent, as well as moving a curly brace around, and some 'or' statements to match the rest of the file (usually or goes at the end of the line vs. at the beginning) Signed-off-by: John 'Warthog9' Hawley (VMware) <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-05-03ktest: Fixing indentation to match expected patternJohn 'Warthog9' Hawley (VMware)1-94/+92
This is a followup to "ktest: Adding editor hints to improve consistency" to actually adjust the existing indentation to match the, now, expected pattern (first column 4 spaces, 2nd tab, 3rd tab + 4 spaces, etc). This should, at least help, keep things consistent going forward now. Signed-off-by: John 'Warthog9' Hawley (VMware) <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-05-03ktest: Adding editor hints to improve consistencyJohn 'Warthog9' Hawley (VMware)1-0/+9
Emacs and Vi(m) have different styles of dealing with perl syntax which can lead to slightly inconsistent indentation, and makes the code slightly harder to read. Emacs assumes a more perl recommended standard of 4 spaces (1 column) or tab (two column) indentation. Vi(m) tends to favor just normal spaces or tabs depending on what was being used. This gives the basic hinting to Emacs and Vim to do what is expected to be basically consistent. Emacs: - Explicitly flip into perl mode, cperl would require more adjustments Vi(m): - Set softtabs=4 which will flip it over to doing indentation the way you would expect from Emacs Signed-off-by: John 'Warthog9' Hawley (VMware) <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-05-03ktest: Add example config for using VMware VMsJohn 'Warthog9' Hawley (VMware)1-0/+137
This duplicates the KVM/Qemu config with specific notes for how to use it with VMware VMs on Workstation, Player, or Fusion. The main thing to be aware of is how the serial port is exposed which is a unix pipe, and will need something like ncat to get into ktest's monitoring Signed-off-by: John 'Warthog9' Hawley (VMware) <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-05-03ktest: Minor cleanup with uninitialized variable $build_optionsJohn 'Warthog9' Hawley (VMware)1-0/+3
Signed-off-by: John 'Warthog9' Hawley (VMware) <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-05-03docs/core-api: Consistent code styleYanteng Si1-13/+13
all `example` in this file should be replaced with ``example``. Signed-off-by: Yanteng Si <[email protected]> Acked-by: Matthias Maennich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-03docs/zh_CN: Adjust order and content of zh_CN/index.rstWu XiangCheng1-10/+158
Adjust order and content of zh_CN/index.rst to make it clear, complete introductions and TODOLists. Signed-off-by: Wu XiangCheng <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-03Documentation: input: joydev file correctionsRandy Dunlap2-20/+20
Fix typos, grammar, punctuation in Documentation/input/joydev/*.rst files. Signed-off-by: Randy Dunlap <[email protected]> Cc: Dmitry Torokhov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2021-05-04xsk: Fix for xp_aligned_validate_desc() when len == chunk_sizeXuan Zhuo1-4/+3
When desc->len is equal to chunk_size, it is legal. But when the xp_aligned_validate_desc() got chunk_end from desc->addr + desc->len pointing to the next chunk during the check, it caused the check to fail. This problem was first introduced in bbff2f321a86 ("xsk: new descriptor addressing scheme"). Later in 2b43470add8c ("xsk: Introduce AF_XDP buffer allocation API") this piece of code was moved into the new function called xp_aligned_validate_desc(). This function was then moved into xsk_queue.h via 26062b185eee ("xsk: Explicitly inline functions and move definitions"). Fixes: bbff2f321a86 ("xsk: new descriptor addressing scheme") Signed-off-by: Xuan Zhuo <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Magnus Karlsson <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-03netfilter: arptables: use pernet ops struct during unregisterFlorian Westphal3-6/+4
Like with iptables and ebtables, hook unregistration has to use the pernet ops struct, not the template. This triggered following splat: hook not found, pf 3 num 0 WARNING: CPU: 0 PID: 224 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 net/netfilter/core.c:480 [..] nf_unregister_net_hook net/netfilter/core.c:502 [inline] nf_unregister_net_hooks+0x117/0x160 net/netfilter/core.c:576 arpt_unregister_table_pre_exit+0x67/0x80 net/ipv4/netfilter/arp_tables.c:1565 Fixes: f9006acc8dfe5 ("netfilter: arp_tables: pass table pointer via nf_hook_ops") Reported-by: [email protected] Signed-off-by: Florian Westphal <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2021-05-03netfilter: xt_SECMARK: add new revision to fix structure layoutPablo Neira Ayuso2-19/+75
This extension breaks when trying to delete rules, add a new revision to fix this. Fixes: 5e6874cdb8de ("[SECMARK]: Add xtables SECMARK target") Signed-off-by: Phil Sutter <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2021-05-03Merge tag 'for-5.13/parisc' of ↵Linus Torvalds6-104/+17
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc architecture updates from Helge Deller: - switch to generic syscall header scripts - minor typo fix in setup.c * tag 'for-5.13/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix typo in setup.c parisc: syscalls: switch to generic syscallhdr.sh parisc: syscalls: switch to generic syscalltbl.sh
2021-05-03Documentation: ABI: sysfs-class-net-qmi: document pass-through fileDaniele Palmas1-0/+16
Add documentation for /sys/class/net/<iface>/qmi/pass_through Signed-off-by: Daniele Palmas <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03Revert "drivers/net/wan/hdlc_fr: Fix a double free in pvc_xmit"Xie He1-3/+2
This reverts commit 1b479fb80160 ("drivers/net/wan/hdlc_fr: Fix a double free in pvc_xmit"). 1. This commit is incorrect. "__skb_pad" will NOT free the skb on failure when its "free_on_error" parameter is "false". 2. This commit claims to fix my commit. But it didn't CC me?? Fixes: 1b479fb80160 ("drivers/net/wan/hdlc_fr: Fix a double free in pvc_xmit") Cc: Lv Yunlong <[email protected]> Signed-off-by: Xie He <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03Merge branch 'sctp-race-fix'David S. Miller1-16/+22
Xin Long says: ==================== sctp: fix the race condition in sctp_destroy_sock in a proper way The original fix introduced a dead lock, and has to be removed in Patch 1/2, and we will get a proper way to fix it in Patch 2/2. ==================== Signed-off-by: David S. Miller <[email protected]>
2021-05-03sctp: delay auto_asconf init until binding the first addrXin Long1-14/+17
As Or Cohen described: If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock held and sp->do_auto_asconf is true, then an element is removed from the auto_asconf_splist without any proper locking. This can happen in the following functions: 1. In sctp_accept, if sctp_sock_migrate fails. 2. In inet_create or inet6_create, if there is a bpf program attached to BPF_CGROUP_INET_SOCK_CREATE which denies creation of the sctp socket. This patch is to fix it by moving the auto_asconf init out of sctp_init_sock(), by which inet_create()/inet6_create() won't need to operate it in sctp_destroy_sock() when calling sk_common_release(). It also makes more sense to do auto_asconf init while binding the first addr, as auto_asconf actually requires an ANY addr bind, see it in sctp_addr_wq_timeout_handler(). This addresses CVE-2021-23133. Fixes: 610236587600 ("bpf: Add new cgroup attach type to enable sock modifications") Reported-by: Or Cohen <[email protected]> Signed-off-by: Xin Long <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03Revert "net/sctp: fix race condition in sctp_destroy_sock"Xin Long1-5/+8
This reverts commit b166a20b07382b8bc1dcee2a448715c9c2c81b5b. This one has to be reverted as it introduced a dead lock, as syzbot reported: CPU0 CPU1 ---- ---- lock(&net->sctp.addr_wq_lock); lock(slock-AF_INET6); lock(&net->sctp.addr_wq_lock); lock(slock-AF_INET6); CPU0 is the thread of sctp_addr_wq_timeout_handler(), and CPU1 is that of sctp_close(). The original issue this commit fixed will be fixed in the next patch. Reported-by: [email protected] Signed-off-by: Xin Long <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03net: hsr: check skb can contain struct hsr_ethhdr in fill_frame_infoPhillip Potter1-0/+4
Check at start of fill_frame_info that the MAC header in the supplied skb is large enough to fit a struct hsr_ethhdr, as otherwise this is not a valid HSR frame. If it is too small, return an error which will then cause the callers to clean up the skb. Fixes a KMSAN-found uninit-value bug reported by syzbot at: https://syzkaller.appspot.com/bug?id=f7e9b601f1414f814f7602a82b6619a8d80bce3f Reported-by: [email protected] Signed-off-by: Phillip Potter <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_bXin Long1-1/+2
Normally SCTP_MIB_CURRESTAB is always incremented once asoc enter into ESTABLISHED from the state < ESTABLISHED and decremented when the asoc is being deleted. However, in sctp_sf_do_dupcook_b(), the asoc's state can be changed to ESTABLISHED from the state >= ESTABLISHED where it shouldn't increment SCTP_MIB_CURRESTAB. Otherwise, one asoc may increment MIB_CURRESTAB multiple times but only decrement once at the end. I was able to reproduce it by using scapy to do the 4-way shakehands, after that I replayed the COOKIE-ECHO chunk with 'peer_vtag' field changed to different values, and SCTP_MIB_CURRESTAB was incremented multiple times and never went back to 0 even when the asoc was freed. This patch is to fix it by only incrementing SCTP_MIB_CURRESTAB when the state < ESTABLISHED in sctp_sf_do_dupcook_b(). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Marcelo Ricardo Leitner <[email protected]> Signed-off-by: Xin Long <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03Merge branch 'sctp-bad-revert'David S. Miller2-8/+4
Xin Long says: ==================== sctp: fix the incorrect revert commit 35b4f24415c8 ("sctp: do asoc update earlier in sctp_sf_do_dupcook_a") only keeps the SHUTDOWN and COOKIE-ACK with the same asoc, not transport. So instead of revert commit 145cb2f7177d ("sctp: Fix bundling of SHUTDOWN with COOKIE-ACK"), we should revert 12dfd78e3a74 ("sctp: Fix SHUTDOWN CTSN Ack in the peer restart case"). ==================== Signed-off-by: David S. Miller <[email protected]>
2021-05-03Revert "sctp: Fix SHUTDOWN CTSN Ack in the peer restart case"Xin Long1-5/+1
This reverts commit 12dfd78e3a74825e6f0bc8df7ef9f938fbc6bfe3. This can be reverted as shutdown and cookie_ack chunk are using the same asoc since commit 35b4f24415c8 ("sctp: do asoc update earlier in sctp_sf_do_dupcook_a"). Reported-by: Jere Leppänen <[email protected]> Signed-off-by: Xin Long <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03Revert "Revert "sctp: Fix bundling of SHUTDOWN with COOKIE-ACK""Xin Long1-3/+3
This reverts commit 7e9269a5acec6d841d22e12770a0b02db4f5d8f2. As Jere notice, commit 35b4f24415c8 ("sctp: do asoc update earlier in sctp_sf_do_dupcook_a") only keeps the SHUTDOWN and COOKIE-ACK with the same asoc, not transport. So we have to bring this patch back. Reported-by: Jere Leppänen <[email protected]> Signed-off-by: Xin Long <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03ethernet:enic: Fix a use after free bug in enic_hard_start_xmitLv Yunlong1-2/+5
In enic_hard_start_xmit, it calls enic_queue_wq_skb(). Inside enic_queue_wq_skb, if some error happens, the skb will be freed by dev_kfree_skb(skb). But the freed skb is still used in skb_tx_timestamp(skb). My patch makes enic_queue_wq_skb() return error and goto spin_unlock() incase of error. The solution is provided by Govind. See https://lkml.org/lkml/2021/4/30/961. Fixes: fb7516d42478e ("enic: add sw timestamp support") Signed-off-by: Lv Yunlong <[email protected]> Acked-by: Govindarajulu Varadarajan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-03dt-bindings: media: renesas,vin: Make resets optional on R-Car Gen1Geert Uytterhoeven1-17/+29
The "resets" property is not present on R-Car Gen1 SoCs. Supporting it would require migrating from renesas,cpg-clocks to renesas,cpg-mssr. Fixes: 905fc6b1bfb4a631 ("dt-bindings: rcar-vin: Convert bindings to json-schema") Signed-off-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Niklas Söderlund <[email protected]> Link: https://lore.kernel.org/r/217c8197efaee7d803b22d433abb0ea8e33b84c6.1619700314.git.geert+renesas@glider.be Signed-off-by: Rob Herring <[email protected]>
2021-05-03dt-bindings: PCI: rcar-pci-host: Document missing R-Car H1 supportGeert Uytterhoeven1-1/+11
scripts/checkpatch.pl -f drivers/pci/controller/pcie-rcar-host.c: WARNING: DT compatible string "renesas,pcie-r8a7779" appears un-documented -- check ./Documentation/devicetree/bindings/ #853: FILE: drivers/pci/controller/pcie-rcar-host.c:853: + { .compatible = "renesas,pcie-r8a7779", Re-add the compatible value for R-Car H1, which was lost during the json-schema conversion. Make the "resets" property optional on R-Car H1, as it is not present yet on R-Car Gen1 SoCs. Fixes: 0d69ce3c2c63d4db ("dt-bindings: PCI: rcar-pci-host: Convert bindings to json-schema") Signed-off-by: Geert Uytterhoeven <[email protected]> Link: https://lore.kernel.org/r/fb0bb969cd0e5872ab5eac70e070242c0d8a5b81.1619700202.git.geert+renesas@glider.be Signed-off-by: Rob Herring <[email protected]>
2021-05-03Merge tag 'csky-for-linus-5.13-rc1' of git://github.com/c-sky/csky-linuxLinus Torvalds10-483/+349
Pull arch/csky updates from Guo Ren: "Just cleanups" * tag 'csky-for-linus-5.13-rc1' of git://github.com/c-sky/csky-linux: csky: uaccess.h: Coding convention with asm generic csky: fix syscache.c fallthrough warning csky: Fixup typos csky: Remove duplicate include in arch/csky/kernel/entry.S
2021-05-03Merge tag 'leds-5.13-rc1' of ↵Linus Torvalds12-28/+525
git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds Pull LED updates from Pavel Machek: "Nothing too exciting here, just some fixes" * tag 'leds-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: leds: pca9532: Assign gpio base dynamically leds: trigger: pattern: Switch to using the new API kobj_to_dev() leds: LEDS_BLINK_LGM should depend on X86 leds: lgm: Fix spelling mistake "prepate" -> "prepare" MAINTAINERS: Remove Dan Murphy's bouncing email leds-lm3642: convert comma to semicolon leds: rt4505: Add support for Richtek RT4505 flash LED controller leds: rt4505: Add DT binding document for Richtek RT4505 leds: Kconfig: LEDS_CLASS is usually selected. leds: lgm: Improve Kconfig help leds: lgm: fix gpiolib dependency
2021-05-03Merge tag 'rtc-5.13' of ↵Linus Torvalds21-111/+450
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Mostly small fixes and two drivers gaining alarm support. Summary: Subsystem: - UIE emulation has been reworked to avoid calling driver callbacks when it is known it will not work Drivers: - ab-eoz9: add alarm support - pcf8523: add alarm support" * tag 'rtc-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (27 commits) rtc: sysfs: check features instead of ops rtc: omap: use rtc_write to access OMAP_RTC_OSC_REG rtc: s5m: Remove reference to parent's device pdata rtc: ds1307: Fix wday settings for rx8130 rtc: pcf8523: report oscillator failures rtc: pcf8523: add alarm support rtc: pcf8523: remove useless define rtc: rtc_update_irq_enable: rework UIE emulation rtc: ds1307: remove flags rtc: ds1307: replace HAS_ALARM by RTC_FEATURE_ALARM rtc: imx-sc: remove .read_alarm rtc: ds1511: remove unused function rtc: fsl-ftm-alarm: add MODULE_TABLE() rtc: rtc-spear: replace spin_lock_irqsave by spin_lock in hard IRQ dt-bindings: rtc: qcom-pm8xxx-rtc: Add qcom pm8xxx rtc bindings rtc: pm8xxx: Add RTC support for PMIC PMK8350 rtc: ab-eoz9: make use of RTC_FEATURE_ALARM rtc: ab-eoz9: add alarm support rtc: ab-eoz9: set regmap max_register rtc: pcf85063: fallback to parent of_node ...
2021-05-03of: overlay: Remove redundant assignment to retJiapeng Chong1-3/+0
Variable ret is set to zero but this value is never read as it is overwritten with a new value later on, hence it is a redundant assignment and can be removed. Cleans up the following clang-analyzer warning: drivers/of/overlay.c:1197:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]. drivers/of/overlay.c:1026:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by: Abaci Robot <[email protected]> Signed-off-by: Jiapeng Chong <[email protected]> Link: https://lore.kernel.org/r/1619347258-55002-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Rob Herring <[email protected]>
2021-05-03Merge tag 'trace-v5.13' of ↵Linus Torvalds43-297/+1187
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "New feature: - A new "func-no-repeats" option in tracefs/options directory. When set the function tracer will detect if the current function being traced is the same as the previous one, and instead of recording it, it will keep track of the number of times that the function is repeated in a row. And when another function is recorded, it will write a new event that shows the function that repeated, the number of times it repeated and the time stamp of when the last repeated function occurred. Enhancements: - In order to implement the above "func-no-repeats" option, the ring buffer timestamp can now give the accurate timestamp of the event as it is being recorded, instead of having to record an absolute timestamp for all events. This helps the histogram code which no longer needs to waste ring buffer space. - New validation logic to make sure all trace events that access dereferenced pointers do so in a safe way, and will warn otherwise. Fixes: - No longer limit the PIDs of tasks that are recorded for "saved_cmdlines" to PID_MAX_DEFAULT (32768), as systemd now allows for a much larger range. This caused the mapping of PIDs to the task names to be dropped for all tasks with a PID greater than 32768. - Change trace_clock_global() to never block. This caused a deadlock. Clean ups: - Typos, prototype fixes, and removing of duplicate or unused code. - Better management of ftrace_page allocations" * tag 'trace-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (32 commits) tracing: Restructure trace_clock_global() to never block tracing: Map all PIDs to command lines ftrace: Reuse the output of the function tracer for func_repeats tracing: Add "func_no_repeats" option for function tracing tracing: Unify the logic for function tracing options tracing: Add method for recording "func_repeats" events tracing: Add "last_func_repeats" to struct trace_array tracing: Define new ftrace event "func_repeats" tracing: Define static void trace_print_time() ftrace: Simplify the calculation of page number for ftrace_page->records some more ftrace: Store the order of pages allocated in ftrace_page tracing: Remove unused argument from "ring_buffer_time_stamp() tracing: Remove duplicate struct declaration in trace_events.h tracing: Update create_system_filter() kernel-doc comment tracing: A minor cleanup for create_system_filter() kernel: trace: Mundane typo fixes in the file trace_events_filter.c tracing: Fix various typos in comments scripts/recordmcount.pl: Make vim and emacs indent the same scripts/recordmcount.pl: Make indent spacing consistent tracing: Add a verifier to check string pointers for trace events ...
2021-05-03PCI: brcmstb: Use reset/rearm instead of deassert/assertJim Quinlan1-6/+13
The Broadcom STB PCIe RC uses a reset control "rescal" for certain chips. The "rescal" implements a "pulse reset" so using assert/deassert is wrong for this device. Instead, we use reset/rearm. We need to use rearm so that we can reset it after a suspend/resume cycle; w/o using "rearm", the "rescal" device will only ever fire once. Of course for suspend/resume to work we also need to put the reset/rearm calls in the suspend and resume routines. Fixes: 740d6c3708a9 ("PCI: brcmstb: Add control of rescal reset") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jim Quinlan <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Florian Fainelli <[email protected]>
2021-05-03ata: ahci_brcm: Fix use of BCM7216 reset controllerJim Quinlan1-23/+23
This driver may use one of two resets controllers. Keep them in separate variables to keep things simple. The reset controller "rescal" is shared between the AHCI driver and the PCIe driver for the BrcmSTB 7216 chip. Use devm_reset_control_get_optional_shared() to handle this sharing. [bhelgaas: add Jens' ack from v5 posting] Fixes: 272ecd60a636 ("ata: ahci_brcm: BCM7216 reset is self de-asserting") Fixes: c345ec6a50e9 ("ata: ahci_brcm: Support BCM7216 reset controller name") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jim Quinlan <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Jens Axboe <[email protected]> Acked-by: Florian Fainelli <[email protected]>
2021-05-03Merge branch 'work.recursive_removal' of ↵Linus Torvalds1-63/+5
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull another simple_recursive_removal() update from Al Viro: "I missed one case when simple_recursive_removal() was introduced" * 'work.recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: qib_fs: switch to simple_recursive_removal()
2021-05-03reset: add missing empty function reset_control_rearm()Jim Quinlan1-0/+5
All other functions are defined for when CONFIG_RESET_CONTROLLER is not set. Fixes: 557acb3d2cd9 ("reset: make shared pulsed reset controls re-triggerable") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jim Quinlan <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Cc: [email protected] # v5.11+
2021-05-03Merge branch 'work.file' of ↵Linus Torvalds3-32/+35
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull receive_fd update from Al Viro: "Cleanup of receive_fd mess" * 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: split receive_fd_replace from __receive_fd
2021-05-03bio: limit bio max sizeChangheun Lee4-3/+21
bio size can grow up to 4GB when muli-page bvec is enabled. but sometimes it would lead to inefficient behaviors. in case of large chunk direct I/O, - 32MB chunk read in user space - all pages for 32MB would be merged to a bio structure if the pages physical addresses are contiguous. it makes some delay to submit until merge complete. bio max size should be limited to a proper size. When 32MB chunk read with direct I/O option is coming from userspace, kernel behavior is below now in do_direct_IO() loop. it's timeline. | bio merge for 32MB. total 8,192 pages are merged. | total elapsed time is over 2ms. |------------------ ... ----------------------->| | 8,192 pages merged a bio. | at this time, first bio submit is done. | 1 bio is split to 32 read request and issue. |---------------> |---------------> |---------------> ...... |---------------> |--------------->| total 19ms elapsed to complete 32MB read done from device. | If bio max size is limited with 1MB, behavior is changed below. | bio merge for 1MB. 256 pages are merged for each bio. | total 32 bio will be made. | total elapsed time is over 2ms. it's same. | but, first bio submit timing is fast. about 100us. |--->|--->|--->|---> ... -->|--->|--->|--->|--->| | 256 pages merged a bio. | at this time, first bio submit is done. | and 1 read request is issued for 1 bio. |---------------> |---------------> |---------------> ...... |---------------> |--------------->| total 17ms elapsed to complete 32MB read done from device. | As a result, read request issue timing is faster if bio max size is limited. Current kernel behavior with multipage bvec, super large bio can be created. And it lead to delay first I/O request issue. Signed-off-by: Changheun Lee <[email protected]> Reviewed-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-05-03RDMA/rtrs: fix uninitialized symbol 'cnt'Gioh Kim1-1/+2
rtrs_clt_rdma_cq_direct returns an ninitialized value in cnt if there is no session. This patch makes rtrs_clt_rdma_cq_direct returns a negative value for block layer not to try again. Fixes: 2958a995edc94 ("block/rnbd-clt: Support polling mode for IO latency optimization") Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Gioh Kim <[email protected]> Signed-off-by: Jack Wang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2021-05-03s390: dasd: Mundane spelling fixesBhaskar Chowdhury1-4/+4
s/Subssystem/Subsystem/ ......two different places s/reportet/reported/ s/managemnet/management/ Signed-off-by: Bhaskar Chowdhury <[email protected]> Acked-by: Randy Dunlap <[email protected]> Signed-off-by: Stefan Haberland <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
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