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2021-05-17net/smc: remove device from smcd_dev_list after failed device_add()Julian Wiedmann
If the device_add() for a smcd_dev fails, there's no cleanup step that rolls back the earlier list_add(). The device subsequently gets freed, and we end up with a corrupted list. Add some error handling that removes the device from the list. Fixes: c6ba7c9ba43d ("net/smc: add base infrastructure for SMC-D and ISM") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17bonding: init notify_work earlier to avoid uninitialized useJohannes Berg
If bond_kobj_init() or later kzalloc() in bond_alloc_slave() fail, then we call kobject_put() on the slave->kobj. This in turn calls the release function slave_kobj_release() which will always try to cancel_delayed_work_sync(&slave->notify_work), which shouldn't be done on an uninitialized work struct. Always initialize the work struct earlier to avoid problems here. Syzbot bisected this down to a completely pointless commit, some fault injection may have been at work here that caused the alloc failure in the first place, which may interact badly with bisect. Reported-by: syzbot+bfda097c12a00c8cae67@syzkaller.appspotmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17MAINTAINERS: net: remove stale website linkKrzysztof Kozlowski
The http://www.linuxfoundation.org/en/Net does not contain networking subsystem description ("Nothing found"). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17dt-bindings: More removals of type references on common propertiesRob Herring
Users of common properties shouldn't have a type definition as the common schemas already have one. A few new ones slipped in and *-names was missed in the last clean-up pass. Drop all the unnecessary type references in the tree. A meta-schema update to catch these is pending. Cc: Stephen Boyd <sboyd@kernel.org> Cc: Olivier Moysan <olivier.moysan@foss.st.com> Cc: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Orson Zhai <orsonzhai@gmail.com> Cc: Baolin Wang <baolin.wang7@gmail.com> Cc: Chunyan Zhang <zhang.lyra@gmail.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Fabrice Gasnier <fabrice.gasnier@st.com> Cc: Odelu Kukatla <okukatla@codeaurora.org> Cc: Alex Elder <elder@kernel.org> Cc: Shengjiu Wang <shengjiu.wang@nxp.com> Cc: linux-clk@vger.kernel.org Cc: alsa-devel@alsa-project.org Cc: linux-iio@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-input@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Georgi Djakov <djakov@kernel.org> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20210510204524.617390-1-robh@kernel.org
2021-05-17dt-bindings: media: renesas,drif: Use graph schemaRob Herring
Convert the renesas,drif binding schema to use the graph schema. The binding referred to video-interfaces.txt, but it doesn't actually use any properties from it as 'sync-active' is a custom property. As 'sync-active' is custom, it needs a type definition. Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Ramesh Shanmugasundaram <rashanmu@gmail.com> Cc: linux-media@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com> Link: https://lore.kernel.org/r/20210510203514.603471-1-robh@kernel.org
2021-05-17tipc: wait and exit until all work queues are doneXin Long
On some host, a crash could be triggered simply by repeating these commands several times: # modprobe tipc # tipc bearer enable media udp name UDP1 localip 127.0.0.1 # rmmod tipc [] BUG: unable to handle kernel paging request at ffffffffc096bb00 [] Workqueue: events 0xffffffffc096bb00 [] Call Trace: [] ? process_one_work+0x1a7/0x360 [] ? worker_thread+0x30/0x390 [] ? create_worker+0x1a0/0x1a0 [] ? kthread+0x116/0x130 [] ? kthread_flush_work_fn+0x10/0x10 [] ? ret_from_fork+0x35/0x40 When removing the TIPC module, the UDP tunnel sock will be delayed to release in a work queue as sock_release() can't be done in rtnl_lock(). If the work queue is schedule to run after the TIPC module is removed, kernel will crash as the work queue function cleanup_beareri() code no longer exists when trying to invoke it. To fix it, this patch introduce a member wq_count in tipc_net to track the numbers of work queues in schedule, and wait and exit until all work queues are done in tipc_exit_net(). Fixes: d0f91938bede ("tipc: add ip/udp media type") Reported-by: Shuang Li <shuali@redhat.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17mld: fix panic in mld_newpack()Taehee Yoo
mld_newpack() doesn't allow to allocate high order page, only order-0 allocation is allowed. If headroom size is too large, a kernel panic could occur in skb_put(). Test commands: ip netns del A ip netns del B ip netns add A ip netns add B ip link add veth0 type veth peer name veth1 ip link set veth0 netns A ip link set veth1 netns B ip netns exec A ip link set lo up ip netns exec A ip link set veth0 up ip netns exec A ip -6 a a 2001:db8:0::1/64 dev veth0 ip netns exec B ip link set lo up ip netns exec B ip link set veth1 up ip netns exec B ip -6 a a 2001:db8:0::2/64 dev veth1 for i in {1..99} do let A=$i-1 ip netns exec A ip link add ip6gre$i type ip6gre \ local 2001:db8:$A::1 remote 2001:db8:$A::2 encaplimit 100 ip netns exec A ip -6 a a 2001:db8:$i::1/64 dev ip6gre$i ip netns exec A ip link set ip6gre$i up ip netns exec B ip link add ip6gre$i type ip6gre \ local 2001:db8:$A::2 remote 2001:db8:$A::1 encaplimit 100 ip netns exec B ip -6 a a 2001:db8:$i::2/64 dev ip6gre$i ip netns exec B ip link set ip6gre$i up done Splat looks like: kernel BUG at net/core/skbuff.c:110! invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.12.0+ #891 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:skb_panic+0x15d/0x15f Code: 92 fe 4c 8b 4c 24 10 53 8b 4d 70 45 89 e0 48 c7 c7 00 ae 79 83 41 57 41 56 41 55 48 8b 54 24 a6 26 f9 ff <0f> 0b 48 8b 6c 24 20 89 34 24 e8 4a 4e 92 fe 8b 34 24 48 c7 c1 20 RSP: 0018:ffff88810091f820 EFLAGS: 00010282 RAX: 0000000000000089 RBX: ffff8881086e9000 RCX: 0000000000000000 RDX: 0000000000000089 RSI: 0000000000000008 RDI: ffffed1020123efb RBP: ffff888005f6eac0 R08: ffffed1022fc0031 R09: ffffed1022fc0031 R10: ffff888117e00187 R11: ffffed1022fc0030 R12: 0000000000000028 R13: ffff888008284eb0 R14: 0000000000000ed8 R15: 0000000000000ec0 FS: 0000000000000000(0000) GS:ffff888117c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8b801c5640 CR3: 0000000033c2c006 CR4: 00000000003706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ? ip6_mc_hdr.isra.26.constprop.46+0x12a/0x600 ? ip6_mc_hdr.isra.26.constprop.46+0x12a/0x600 skb_put.cold.104+0x22/0x22 ip6_mc_hdr.isra.26.constprop.46+0x12a/0x600 ? rcu_read_lock_sched_held+0x91/0xc0 mld_newpack+0x398/0x8f0 ? ip6_mc_hdr.isra.26.constprop.46+0x600/0x600 ? lock_contended+0xc40/0xc40 add_grhead.isra.33+0x280/0x380 add_grec+0x5ca/0xff0 ? mld_sendpack+0xf40/0xf40 ? lock_downgrade+0x690/0x690 mld_send_initial_cr.part.34+0xb9/0x180 ipv6_mc_dad_complete+0x15d/0x1b0 addrconf_dad_completed+0x8d2/0xbb0 ? lock_downgrade+0x690/0x690 ? addrconf_rs_timer+0x660/0x660 ? addrconf_dad_work+0x73c/0x10e0 addrconf_dad_work+0x73c/0x10e0 Allowing high order page allocation could fix this problem. Fixes: 72e09ad107e7 ("ipv6: avoid high order allocations") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17isdn: mISDN: netjet: Fix crash in nj_probe:Zheyu Ma
'nj_setup' in netjet.c might fail with -EIO and in this case 'card->irq' is initialized and is bigger than zero. A subsequent call to 'nj_release' will free the irq that has not been requested. Fix this bug by deleting the previous assignment to 'card->irq' and just keep the assignment before 'request_irq'. The KASAN's log reveals it: [ 3.354615 ] WARNING: CPU: 0 PID: 1 at kernel/irq/manage.c:1826 free_irq+0x100/0x480 [ 3.355112 ] Modules linked in: [ 3.355310 ] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc1-00144-g25a1298726e #13 [ 3.355816 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 3.356552 ] RIP: 0010:free_irq+0x100/0x480 [ 3.356820 ] Code: 6e 08 74 6f 4d 89 f4 e8 5e ac 09 00 4d 8b 74 24 18 4d 85 f6 75 e3 e8 4f ac 09 00 8b 75 c8 48 c7 c7 78 c1 2e 85 e8 e0 cf f5 ff <0f> 0b 48 8b 75 c0 4c 89 ff e8 72 33 0b 03 48 8b 43 40 4c 8b a0 80 [ 3.358012 ] RSP: 0000:ffffc90000017b48 EFLAGS: 00010082 [ 3.358357 ] RAX: 0000000000000000 RBX: ffff888104dc8000 RCX: 0000000000000000 [ 3.358814 ] RDX: ffff8881003c8000 RSI: ffffffff8124a9e6 RDI: 00000000ffffffff [ 3.359272 ] RBP: ffffc90000017b88 R08: 0000000000000000 R09: 0000000000000000 [ 3.359732 ] R10: ffffc900000179f0 R11: 0000000000001d04 R12: 0000000000000000 [ 3.360195 ] R13: ffff888107dc6000 R14: ffff888107dc6928 R15: ffff888104dc80a8 [ 3.360652 ] FS: 0000000000000000(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000 [ 3.361170 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.361538 ] CR2: 0000000000000000 CR3: 000000000582e000 CR4: 00000000000006f0 [ 3.362003 ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3.362175 ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3.362175 ] Call Trace: [ 3.362175 ] nj_release+0x51/0x1e0 [ 3.362175 ] nj_probe+0x450/0x950 [ 3.362175 ] ? pci_device_remove+0x110/0x110 [ 3.362175 ] local_pci_probe+0x45/0xa0 [ 3.362175 ] pci_device_probe+0x12b/0x1d0 [ 3.362175 ] really_probe+0x2a9/0x610 [ 3.362175 ] driver_probe_device+0x90/0x1d0 [ 3.362175 ] ? mutex_lock_nested+0x1b/0x20 [ 3.362175 ] device_driver_attach+0x68/0x70 [ 3.362175 ] __driver_attach+0x124/0x1b0 [ 3.362175 ] ? device_driver_attach+0x70/0x70 [ 3.362175 ] bus_for_each_dev+0xbb/0x110 [ 3.362175 ] ? rdinit_setup+0x45/0x45 [ 3.362175 ] driver_attach+0x27/0x30 [ 3.362175 ] bus_add_driver+0x1eb/0x2a0 [ 3.362175 ] driver_register+0xa9/0x180 [ 3.362175 ] __pci_register_driver+0x82/0x90 [ 3.362175 ] ? w6692_init+0x38/0x38 [ 3.362175 ] nj_init+0x36/0x38 [ 3.362175 ] do_one_initcall+0x7f/0x3d0 [ 3.362175 ] ? rdinit_setup+0x45/0x45 [ 3.362175 ] ? rcu_read_lock_sched_held+0x4f/0x80 [ 3.362175 ] kernel_init_freeable+0x2aa/0x301 [ 3.362175 ] ? rest_init+0x2c0/0x2c0 [ 3.362175 ] kernel_init+0x18/0x190 [ 3.362175 ] ? rest_init+0x2c0/0x2c0 [ 3.362175 ] ? rest_init+0x2c0/0x2c0 [ 3.362175 ] ret_from_fork+0x1f/0x30 [ 3.362175 ] Kernel panic - not syncing: panic_on_warn set ... [ 3.362175 ] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc1-00144-g25a1298726e #13 [ 3.362175 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 3.362175 ] Call Trace: [ 3.362175 ] dump_stack+0xba/0xf5 [ 3.362175 ] ? free_irq+0x100/0x480 [ 3.362175 ] panic+0x15a/0x3f2 [ 3.362175 ] ? __warn+0xf2/0x150 [ 3.362175 ] ? free_irq+0x100/0x480 [ 3.362175 ] __warn+0x108/0x150 [ 3.362175 ] ? free_irq+0x100/0x480 [ 3.362175 ] report_bug+0x119/0x1c0 [ 3.362175 ] handle_bug+0x3b/0x80 [ 3.362175 ] exc_invalid_op+0x18/0x70 [ 3.362175 ] asm_exc_invalid_op+0x12/0x20 [ 3.362175 ] RIP: 0010:free_irq+0x100/0x480 [ 3.362175 ] Code: 6e 08 74 6f 4d 89 f4 e8 5e ac 09 00 4d 8b 74 24 18 4d 85 f6 75 e3 e8 4f ac 09 00 8b 75 c8 48 c7 c7 78 c1 2e 85 e8 e0 cf f5 ff <0f> 0b 48 8b 75 c0 4c 89 ff e8 72 33 0b 03 48 8b 43 40 4c 8b a0 80 [ 3.362175 ] RSP: 0000:ffffc90000017b48 EFLAGS: 00010082 [ 3.362175 ] RAX: 0000000000000000 RBX: ffff888104dc8000 RCX: 0000000000000000 [ 3.362175 ] RDX: ffff8881003c8000 RSI: ffffffff8124a9e6 RDI: 00000000ffffffff [ 3.362175 ] RBP: ffffc90000017b88 R08: 0000000000000000 R09: 0000000000000000 [ 3.362175 ] R10: ffffc900000179f0 R11: 0000000000001d04 R12: 0000000000000000 [ 3.362175 ] R13: ffff888107dc6000 R14: ffff888107dc6928 R15: ffff888104dc80a8 [ 3.362175 ] ? vprintk+0x76/0x150 [ 3.362175 ] ? free_irq+0x100/0x480 [ 3.362175 ] nj_release+0x51/0x1e0 [ 3.362175 ] nj_probe+0x450/0x950 [ 3.362175 ] ? pci_device_remove+0x110/0x110 [ 3.362175 ] local_pci_probe+0x45/0xa0 [ 3.362175 ] pci_device_probe+0x12b/0x1d0 [ 3.362175 ] really_probe+0x2a9/0x610 [ 3.362175 ] driver_probe_device+0x90/0x1d0 [ 3.362175 ] ? mutex_lock_nested+0x1b/0x20 [ 3.362175 ] device_driver_attach+0x68/0x70 [ 3.362175 ] __driver_attach+0x124/0x1b0 [ 3.362175 ] ? device_driver_attach+0x70/0x70 [ 3.362175 ] bus_for_each_dev+0xbb/0x110 [ 3.362175 ] ? rdinit_setup+0x45/0x45 [ 3.362175 ] driver_attach+0x27/0x30 [ 3.362175 ] bus_add_driver+0x1eb/0x2a0 [ 3.362175 ] driver_register+0xa9/0x180 [ 3.362175 ] __pci_register_driver+0x82/0x90 [ 3.362175 ] ? w6692_init+0x38/0x38 [ 3.362175 ] nj_init+0x36/0x38 [ 3.362175 ] do_one_initcall+0x7f/0x3d0 [ 3.362175 ] ? rdinit_setup+0x45/0x45 [ 3.362175 ] ? rcu_read_lock_sched_held+0x4f/0x80 [ 3.362175 ] kernel_init_freeable+0x2aa/0x301 [ 3.362175 ] ? rest_init+0x2c0/0x2c0 [ 3.362175 ] kernel_init+0x18/0x190 [ 3.362175 ] ? rest_init+0x2c0/0x2c0 [ 3.362175 ] ? rest_init+0x2c0/0x2c0 [ 3.362175 ] ret_from_fork+0x1f/0x30 [ 3.362175 ] Dumping ftrace buffer: [ 3.362175 ] (ftrace buffer empty) [ 3.362175 ] Kernel Offset: disabled [ 3.362175 ] Rebooting in 1 seconds.. Reported-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17Merge branch 'bnxt_en-fixes'David S. Miller
Michael Chan says: ==================== bnxt_en: 2 bug fixes. The first one fixes a bug to properly identify some recently added HyperV device IDs. The second one fixes device context memory set up on systems with 64K page size. Please queue these for -stable as well. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17bnxt_en: Fix context memory setup for 64K page size.Michael Chan
There was a typo in the code that checks for 64K BNXT_PAGE_SHIFT in bnxt_hwrm_set_pg_attr(). Fix it and make the code more understandable with a new macro BNXT_SET_CTX_PAGE_ATTR(). Fixes: 1b9394e5a2ad ("bnxt_en: Configure context memory on new devices.") Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17bnxt_en: Include new P5 HV definition in VF check.Andy Gospodarek
Otherwise, some of the recently added HyperV VF IDs would not be recognized as VF devices and they would not initialize properly. Fixes: 7fbf359bb2c1 ("bnxt_en: Add PCI IDs for Hyper-V VF devices.") Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17net: bnx2: Fix error return code in bnx2_init_board()Zhen Lei
Fix to return -EPERM from the error handling case instead of 0, as done elsewhere in this function. Fixes: b6016b767397 ("[BNX2]: New Broadcom gigabit network driver.") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17NFC: nci: fix memory leak in nci_allocate_deviceDongliang Mu
nfcmrvl_disconnect fails to free the hci_dev field in struct nci_dev. Fix this by freeing hci_dev in nci_free_device. BUG: memory leak unreferenced object 0xffff888111ea6800 (size 1024): comm "kworker/1:0", pid 19, jiffies 4294942308 (age 13.580s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 60 fd 0c 81 88 ff ff .........`...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000004bc25d43>] kmalloc include/linux/slab.h:552 [inline] [<000000004bc25d43>] kzalloc include/linux/slab.h:682 [inline] [<000000004bc25d43>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784 [<00000000c59cff92>] nci_allocate_device net/nfc/nci/core.c:1170 [inline] [<00000000c59cff92>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132 [<00000000006e0a8e>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153 [<000000004da1b57e>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345 [<00000000d506aed9>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554 [<00000000f5009125>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740 [<000000000ce658ca>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846 [<000000007067d05f>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000f8e13372>] __device_attach+0x122/0x250 drivers/base/dd.c:914 [<000000009cf68860>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000359c965a>] device_add+0x5be/0xc30 drivers/base/core.c:3109 [<00000000086e4bd3>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<00000000ca036872>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000d40d36f6>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554 Reported-by: syzbot+19bcfc64a8df1318d1c3@syzkaller.appspotmail.com Fixes: 11f54f228643 ("NFC: nci: Add HCI over NCI protocol support") Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17net: hso: check for allocation failure in hso_create_bulk_serial_device()Dan Carpenter
In current kernels, small allocations never actually fail so this patch shouldn't affect runtime. Originally this error handling code written with the idea that if the "serial->tiocmget" allocation failed, then we would continue operating instead of bailing out early. But in later years we added an unchecked dereference on the next line. serial->tiocmget->serial_state_notification = kzalloc(); ^^^^^^^^^^^^^^^^^^ Since these allocations are never going fail in real life, this is mostly a philosophical debate, but I think bailing out early is the correct behavior that the user would want. And generally it's safer to bail as soon an error happens. Fixes: af0de1303c4e ("usb: hso: obey DMA rules in tiocmget") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17tipc: skb_linearize the head skb when reassembling msgsXin Long
It's not a good idea to append the frag skb to a skb's frag_list if the frag_list already has skbs from elsewhere, such as this skb was created by pskb_copy() where the frag_list was cloned (all the skbs in it were skb_get'ed) and shared by multiple skbs. However, the new appended frag skb should have been only seen by the current skb. Otherwise, it will cause use after free crashes as this appended frag skb are seen by multiple skbs but it only got skb_get called once. The same thing happens with a skb updated by pskb_may_pull() with a skb_cloned skb. Li Shuang has reported quite a few crashes caused by this when doing testing over macvlan devices: [] kernel BUG at net/core/skbuff.c:1970! [] Call Trace: [] skb_clone+0x4d/0xb0 [] macvlan_broadcast+0xd8/0x160 [macvlan] [] macvlan_process_broadcast+0x148/0x150 [macvlan] [] process_one_work+0x1a7/0x360 [] worker_thread+0x30/0x390 [] kernel BUG at mm/usercopy.c:102! [] Call Trace: [] __check_heap_object+0xd3/0x100 [] __check_object_size+0xff/0x16b [] simple_copy_to_iter+0x1c/0x30 [] __skb_datagram_iter+0x7d/0x310 [] __skb_datagram_iter+0x2a5/0x310 [] skb_copy_datagram_iter+0x3b/0x90 [] tipc_recvmsg+0x14a/0x3a0 [tipc] [] ____sys_recvmsg+0x91/0x150 [] ___sys_recvmsg+0x7b/0xc0 [] kernel BUG at mm/slub.c:305! [] Call Trace: [] <IRQ> [] kmem_cache_free+0x3ff/0x400 [] __netif_receive_skb_core+0x12c/0xc40 [] ? kmem_cache_alloc+0x12e/0x270 [] netif_receive_skb_internal+0x3d/0xb0 [] ? get_rx_page_info+0x8e/0xa0 [be2net] [] be_poll+0x6ef/0xd00 [be2net] [] ? irq_exit+0x4f/0x100 [] net_rx_action+0x149/0x3b0 ... This patch is to fix it by linearizing the head skb if it has frag_list set in tipc_buf_append(). Note that we choose to do this before calling skb_unshare(), as __skb_linearize() will avoid skb_copy(). Also, we can not just drop the frag_list either as the early time. Fixes: 45c8b7b175ce ("tipc: allow non-linear first fragment buffer") Reported-by: Li Shuang <shuali@redhat.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17Merge tag 'irqchip-fixes-5.13-1' of ↵Thomas Gleixner
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull irqchip fixes from Marc Zyngier: - Fix PXA Mainstone CPLD irq allocation in legacy mode - Restrict the Apple AIC controller to the Apple platform - Remove a few supperfluous messages on devm_ioremap_resource() failure Link: https://lore.kernel.org/r/20210516122217.13234-1-maz@kernel.org
2021-05-17Merge tag 'for-5.13-rc2-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: "A few more fixes: - fix fiemap to print extents that could get misreported due to internal extent splitting and logical merging for fiemap output - fix RCU stalls during delayed iputs - fix removed dentries still existing after log is synced" * tag 'for-5.13-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: fix removed dentries still existing after log is synced btrfs: return whole extents in fiemap btrfs: avoid RCU stalls while running delayed iputs btrfs: return 0 for dev_extent_hole_check_zoned hole_start in case of error
2021-05-17RDMA/rxe: Return CQE error if invalid lkey was suppliedLeon Romanovsky
RXE is missing update of WQE status in LOCAL_WRITE failures. This caused the following kernel panic if someone sent an atomic operation with an explicitly wrong lkey. [leonro@vm ~]$ mkt test test_atomic_invalid_lkey (tests.test_atomic.AtomicTest) ... WARNING: CPU: 5 PID: 263 at drivers/infiniband/sw/rxe/rxe_comp.c:740 rxe_completer+0x1a6d/0x2e30 [rdma_rxe] Modules linked in: crc32_generic rdma_rxe ip6_udp_tunnel udp_tunnel rdma_ucm rdma_cm ib_umad ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core ptp pps_core CPU: 5 PID: 263 Comm: python3 Not tainted 5.13.0-rc1+ #2936 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:rxe_completer+0x1a6d/0x2e30 [rdma_rxe] Code: 03 0f 8e 65 0e 00 00 3b 93 10 06 00 00 0f 84 82 0a 00 00 4c 89 ff 4c 89 44 24 38 e8 2d 74 a9 e1 4c 8b 44 24 38 e9 1c f5 ff ff <0f> 0b e9 0c e8 ff ff b8 05 00 00 00 41 bf 05 00 00 00 e9 ab e7 ff RSP: 0018:ffff8880158af090 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888016a78000 RCX: ffffffffa0cf1652 RDX: 1ffff9200004b442 RSI: 0000000000000004 RDI: ffffc9000025a210 RBP: dffffc0000000000 R08: 00000000ffffffea R09: ffff88801617740b R10: ffffed1002c2ee81 R11: 0000000000000007 R12: ffff88800f3b63e8 R13: ffff888016a78008 R14: ffffc9000025a180 R15: 000000000000000c FS: 00007f88b622a740(0000) GS:ffff88806d540000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f88b5a1fa10 CR3: 000000000d848004 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rxe_do_task+0x130/0x230 [rdma_rxe] rxe_rcv+0xb11/0x1df0 [rdma_rxe] rxe_loopback+0x157/0x1e0 [rdma_rxe] rxe_responder+0x5532/0x7620 [rdma_rxe] rxe_do_task+0x130/0x230 [rdma_rxe] rxe_rcv+0x9c8/0x1df0 [rdma_rxe] rxe_loopback+0x157/0x1e0 [rdma_rxe] rxe_requester+0x1efd/0x58c0 [rdma_rxe] rxe_do_task+0x130/0x230 [rdma_rxe] rxe_post_send+0x998/0x1860 [rdma_rxe] ib_uverbs_post_send+0xd5f/0x1220 [ib_uverbs] ib_uverbs_write+0x847/0xc80 [ib_uverbs] vfs_write+0x1c5/0x840 ksys_write+0x176/0x1d0 do_syscall_64+0x3f/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae Fixes: 8700e3e7c485 ("Soft RoCE driver") Link: https://lore.kernel.org/r/11e7b553f3a6f5371c6bb3f57c494bb52b88af99.1620711734.git.leonro@nvidia.com Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-05-17RDMA/mlx5: Recover from fatal event in dual port modeMaor Gottlieb
When there is fatal event on the slave port, the device is marked as not active. We need to mark it as active again when the slave is recovered to regain full functionality. Fixes: d69a24e03659 ("IB/mlx5: Move IB event processing onto a workqueue") Link: https://lore.kernel.org/r/8906754455bb23019ef223c725d2c0d38acfb80b.1620711734.git.leonro@nvidia.com Signed-off-by: Maor Gottlieb <maorg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-05-17RDMA/mlx5: Verify that DM operation is reasonableMaor Gottlieb
Fix the complaint from smatch by verifing that the user requested DM operation is not greater than 31. divers/infiniband/hw/mlx5/dm.c:220 mlx5_ib_handler_MLX5_IB_METHOD_DM_MAP_OP_ADDR() error: undefined (user controlled) shift '(((1))) << op' Fixes: cea85fa5dbc2 ("RDMA/mlx5: Add support in MEMIC operations") Link: https://lore.kernel.org/r/458b1d7710c3cf01360c8771893f483665569786.1620711734.git.leonro@nvidia.com Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Maor Gottlieb <maorg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-05-17MAINTAINERS: ARM/Amlogic SoCs: add Neil as primary maintainerKevin Hilman
Add Neil as primary maintainer for the Amlogic family of Arm SoCs. I will now act as co-maintainer. Neil is already doing lots of the reviewing, testing and behind the scenes support for users of the upstream kernel on these SoCs, so this is just to formalize the current state of affairs. Thanks Neil for all of your efforts, and keep up the great work! Signed-off-by: Kevin Hilman <khilman@baylibre.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Link: https://lore.kernel.org/r/20210511190054.26300-1-khilman@baylibre.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-05-17Merge tag 'amdtee-fixes-for-v5.13' of ↵Arnd Bergmann
git://git.linaro.org/people/jens.wiklander/linux-tee into arm/fixes AMD-TEE reference count loaded TAs * tag 'amdtee-fixes-for-v5.13' of git://git.linaro.org/people/jens.wiklander/linux-tee: tee: amdtee: unload TA only when its refcount becomes 0 Link: https://lore.kernel.org/r/20210505110850.GA3434209@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-05-17btrfs: do not BUG_ON in link_to_fixup_dirJosef Bacik
While doing error injection testing I got the following panic kernel BUG at fs/btrfs/tree-log.c:1862! invalid opcode: 0000 [#1] SMP NOPTI CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014 RIP: 0010:link_to_fixup_dir+0xd5/0xe0 RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216 RAX: fffffffffffffffb RBX: 00000000fffffffb RCX: ffff8f595287faf0 RDX: ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000 RBP: ffff8f5953af9450 R08: 0000000000000019 R09: 0000000000000001 R10: 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800 R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065 FS: 00007fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5287f47c0 CR3: 000000011275e002 CR4: 0000000000370ee0 Call Trace: replay_one_buffer+0x409/0x470 ? btree_read_extent_buffer_pages+0xd0/0x110 walk_up_log_tree+0x157/0x1e0 walk_log_tree+0xa6/0x1d0 btrfs_recover_log_trees+0x1da/0x360 ? replay_one_extent+0x7b0/0x7b0 open_ctree+0x1486/0x1720 btrfs_mount_root.cold+0x12/0xea ? __kmalloc_track_caller+0x12f/0x240 legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 vfs_kern_mount.part.0+0x71/0xb0 btrfs_mount+0x10d/0x380 ? vfs_parse_fs_string+0x4d/0x90 legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 path_mount+0x433/0xa10 __x64_sys_mount+0xe3/0x120 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae We can get -EIO or any number of legitimate errors from btrfs_search_slot(), panicing here is not the appropriate response. The error path for this code handles errors properly, simply return the error. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2021-05-17btrfs: release path before starting transaction when cloning inline extentFilipe Manana
When cloning an inline extent there are a few cases, such as when we have an implicit hole at file offset 0, where we start a transaction while holding a read lock on a leaf. Starting the transaction results in a call to sb_start_intwrite(), which results in doing a read lock on a percpu semaphore. Lockdep doesn't like this and complains about it: [46.580704] ====================================================== [46.580752] WARNING: possible circular locking dependency detected [46.580799] 5.13.0-rc1 #28 Not tainted [46.580832] ------------------------------------------------------ [46.580877] cloner/3835 is trying to acquire lock: [46.580918] c00000001301d638 (sb_internal#2){.+.+}-{0:0}, at: clone_copy_inline_extent+0xe4/0x5a0 [46.581167] [46.581167] but task is already holding lock: [46.581217] c000000007fa2550 (btrfs-tree-00){++++}-{3:3}, at: __btrfs_tree_read_lock+0x70/0x1d0 [46.581293] [46.581293] which lock already depends on the new lock. [46.581293] [46.581351] [46.581351] the existing dependency chain (in reverse order) is: [46.581410] [46.581410] -> #1 (btrfs-tree-00){++++}-{3:3}: [46.581464] down_read_nested+0x68/0x200 [46.581536] __btrfs_tree_read_lock+0x70/0x1d0 [46.581577] btrfs_read_lock_root_node+0x88/0x200 [46.581623] btrfs_search_slot+0x298/0xb70 [46.581665] btrfs_set_inode_index+0xfc/0x260 [46.581708] btrfs_new_inode+0x26c/0x950 [46.581749] btrfs_create+0xf4/0x2b0 [46.581782] lookup_open.isra.57+0x55c/0x6a0 [46.581855] path_openat+0x418/0xd20 [46.581888] do_filp_open+0x9c/0x130 [46.581920] do_sys_openat2+0x2ec/0x430 [46.581961] do_sys_open+0x90/0xc0 [46.581993] system_call_exception+0x3d4/0x410 [46.582037] system_call_common+0xec/0x278 [46.582078] [46.582078] -> #0 (sb_internal#2){.+.+}-{0:0}: [46.582135] __lock_acquire+0x1e90/0x2c50 [46.582176] lock_acquire+0x2b4/0x5b0 [46.582263] start_transaction+0x3cc/0x950 [46.582308] clone_copy_inline_extent+0xe4/0x5a0 [46.582353] btrfs_clone+0x5fc/0x880 [46.582388] btrfs_clone_files+0xd8/0x1c0 [46.582434] btrfs_remap_file_range+0x3d8/0x590 [46.582481] do_clone_file_range+0x10c/0x270 [46.582558] vfs_clone_file_range+0x1b0/0x310 [46.582605] ioctl_file_clone+0x90/0x130 [46.582651] do_vfs_ioctl+0x874/0x1ac0 [46.582697] sys_ioctl+0x6c/0x120 [46.582733] system_call_exception+0x3d4/0x410 [46.582777] system_call_common+0xec/0x278 [46.582822] [46.582822] other info that might help us debug this: [46.582822] [46.582888] Possible unsafe locking scenario: [46.582888] [46.582942] CPU0 CPU1 [46.582984] ---- ---- [46.583028] lock(btrfs-tree-00); [46.583062] lock(sb_internal#2); [46.583119] lock(btrfs-tree-00); [46.583174] lock(sb_internal#2); [46.583212] [46.583212] *** DEADLOCK *** [46.583212] [46.583266] 6 locks held by cloner/3835: [46.583299] #0: c00000001301d448 (sb_writers#12){.+.+}-{0:0}, at: ioctl_file_clone+0x90/0x130 [46.583382] #1: c00000000f6d3768 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: lock_two_nondirectories+0x58/0xc0 [46.583477] #2: c00000000f6d72a8 (&sb->s_type->i_mutex_key#15/4){+.+.}-{3:3}, at: lock_two_nondirectories+0x9c/0xc0 [46.583574] #3: c00000000f6d7138 (&ei->i_mmap_lock){+.+.}-{3:3}, at: btrfs_remap_file_range+0xd0/0x590 [46.583657] #4: c00000000f6d35f8 (&ei->i_mmap_lock/1){+.+.}-{3:3}, at: btrfs_remap_file_range+0xe0/0x590 [46.583743] #5: c000000007fa2550 (btrfs-tree-00){++++}-{3:3}, at: __btrfs_tree_read_lock+0x70/0x1d0 [46.583828] [46.583828] stack backtrace: [46.583872] CPU: 1 PID: 3835 Comm: cloner Not tainted 5.13.0-rc1 #28 [46.583931] Call Trace: [46.583955] [c0000000167c7200] [c000000000c1ee78] dump_stack+0xec/0x144 (unreliable) [46.584052] [c0000000167c7240] [c000000000274058] print_circular_bug.isra.32+0x3a8/0x400 [46.584123] [c0000000167c72e0] [c0000000002741f4] check_noncircular+0x144/0x190 [46.584191] [c0000000167c73b0] [c000000000278fc0] __lock_acquire+0x1e90/0x2c50 [46.584259] [c0000000167c74f0] [c00000000027aa94] lock_acquire+0x2b4/0x5b0 [46.584317] [c0000000167c75e0] [c000000000a0d6cc] start_transaction+0x3cc/0x950 [46.584388] [c0000000167c7690] [c000000000af47a4] clone_copy_inline_extent+0xe4/0x5a0 [46.584457] [c0000000167c77c0] [c000000000af525c] btrfs_clone+0x5fc/0x880 [46.584514] [c0000000167c7990] [c000000000af5698] btrfs_clone_files+0xd8/0x1c0 [46.584583] [c0000000167c7a00] [c000000000af5b58] btrfs_remap_file_range+0x3d8/0x590 [46.584652] [c0000000167c7ae0] [c0000000005d81dc] do_clone_file_range+0x10c/0x270 [46.584722] [c0000000167c7b40] [c0000000005d84f0] vfs_clone_file_range+0x1b0/0x310 [46.584793] [c0000000167c7bb0] [c00000000058bf80] ioctl_file_clone+0x90/0x130 [46.584861] [c0000000167c7c10] [c00000000058c894] do_vfs_ioctl+0x874/0x1ac0 [46.584922] [c0000000167c7d10] [c00000000058db4c] sys_ioctl+0x6c/0x120 [46.584978] [c0000000167c7d60] [c0000000000364a4] system_call_exception+0x3d4/0x410 [46.585046] [c0000000167c7e10] [c00000000000d45c] system_call_common+0xec/0x278 [46.585114] --- interrupt: c00 at 0x7ffff7e22990 [46.585160] NIP: 00007ffff7e22990 LR: 00000001000010ec CTR: 0000000000000000 [46.585224] REGS: c0000000167c7e80 TRAP: 0c00 Not tainted (5.13.0-rc1) [46.585280] MSR: 800000000280f033 <SF,VEC,VSX,EE,PR,FP,ME,IR,DR,RI,LE> CR: 28000244 XER: 00000000 [46.585374] IRQMASK: 0 [46.585374] GPR00: 0000000000000036 00007fffffffdec0 00007ffff7f17100 0000000000000004 [46.585374] GPR04: 000000008020940d 00007fffffffdf40 0000000000000000 0000000000000000 [46.585374] GPR08: 0000000000000004 0000000000000000 0000000000000000 0000000000000000 [46.585374] GPR12: 0000000000000000 00007ffff7ffa940 0000000000000000 0000000000000000 [46.585374] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [46.585374] GPR20: 0000000000000000 000000009123683e 00007fffffffdf40 0000000000000000 [46.585374] GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000004 [46.585374] GPR28: 0000000100030260 0000000100030280 0000000000000003 000000000000005f [46.585919] NIP [00007ffff7e22990] 0x7ffff7e22990 [46.585964] LR [00000001000010ec] 0x1000010ec [46.586010] --- interrupt: c00 This should be a false positive, as both locks are acquired in read mode. Nevertheless, we don't need to hold a leaf locked when we start the transaction, so just release the leaf (path) before starting it. Reported-by: Ritesh Harjani <riteshh@linux.ibm.com> Link: https://lore.kernel.org/linux-btrfs/20210513214404.xks77p566fglzgum@riteshh-domain/ Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2021-05-17io_uring: don't modify req->poll for rwPavel Begunkov
__io_queue_proc() is used by both poll and apoll, so we should not access req->poll directly but selecting right struct io_poll_iocb depending on use case. Reported-and-tested-by: syzbot+a84b8783366ecb1c65d0@syzkaller.appspotmail.com Fixes: ea6a693d862d ("io_uring: disable multishot poll for double poll add cases") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/4a6a1de31142d8e0250fe2dfd4c8923d82a5bbfc.1621251795.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-05-17quota: Disable quotactl_path syscallJan Kara
In commit fa8b90070a80 ("quota: wire up quotactl_path") we have wired up new quotactl_path syscall. However some people in LWN discussion have objected that the path based syscall is missing dirfd and flags argument which is mostly standard for contemporary path based syscalls. Indeed they have a point and after a discussion with Christian Brauner and Sascha Hauer I've decided to disable the syscall for now and update its API. Since there is no userspace currently using that syscall and it hasn't been released in any major release, we should be fine. CC: Christian Brauner <christian.brauner@ubuntu.com> CC: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.kernel.org/lkml/20210512153621.n5u43jsytbik4yze@wittgenstein Signed-off-by: Jan Kara <jack@suse.cz>
2021-05-17drm/exynos/decon5433: Remove redundant error printing in ↵Zhen Lei
exynos5433_decon_probe() When devm_ioremap_resource() fails, a clear enough error message will be printed by its subfunction __devm_ioremap_resource(). The error information contains the device name, failure cause, and possibly resource information. Therefore, remove the error printing here to simplify code and reduce the binary size. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2021-05-17drm/exynos: Remove redundant error printing in exynos_dsi_probe()Zhen Lei
When devm_ioremap_resource() fails, a clear enough error message will be printed by its subfunction __devm_ioremap_resource(). The error information contains the device name, failure cause, and possibly resource information. Therefore, remove the error printing here to simplify code and reduce the binary size. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2021-05-17drm/exynos: correct exynos_drm_fimd kerneldocKrzysztof Kozlowski
Correct the kerneldoc of fimd_shadow_protect_win() to fix W=1 warnings: drivers/gpu/drm/exynos/exynos_drm_fimd.c:734: warning: expecting prototype for shadow_protect_win(). Prototype was for fimd_shadow_protect_win() instead Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2021-05-17drm/i915/gvt: Move mdev attribute groups into kvmgt moduleZhenyu Wang
As kvmgt module contains all handling for VFIO/mdev, leaving mdev attribute groups in gvt module caused dependency issue. Although it was there for possible other hypervisor usage, that turns out never to be true. So this moves all mdev handling into kvmgt module completely to resolve dependency issue. With this fix, no config workaround is required. So revert previous workaround commits: adaeb718d46f ("vfio/gvt: fix DRM_I915_GVT dependency on VFIO_MDEV") and 07e543f4f9d1 ("vfio/gvt: Make DRM_I915_GVT depend on VFIO_MDEV"). Reviewed-by: Colin Xu <colin.xu@intel.com> Cc: Arnd Bergmann <arnd@kernel.org> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20210513083902.2822350-1-zhenyuw@linux.intel.com
2021-05-17Merge tag 'kvmarm-fixes-5.13-1' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.13, take #1 - Fix regression with irqbypass not restarting the guest on failed connect - Fix regression with debug register decoding resulting in overlapping access - Commit exception state on exit to usrspace - Fix the MMU notifier return values - Add missing 'static' qualifiers in the new host stage-2 code
2021-05-17module: check for exit sections in layout_sections() instead of ↵Jessica Yu
module_init_section() Previously, when CONFIG_MODULE_UNLOAD=n, the module loader just does not attempt to load exit sections since it never expects that any code in those sections will ever execute. However, dynamic code patching (alternatives, jump_label and static_call) can have sites in __exit code, even if __exit is never executed. Therefore __exit must be present at runtime, at least for as long as __init code is. Commit 33121347fb1c ("module: treat exit sections the same as init sections when !CONFIG_MODULE_UNLOAD") solves the requirements of jump_labels and static_calls by putting the exit sections in the init region of the module so that they are at least present at init, and discarded afterwards. It does this by including a check for exit sections in module_init_section(), so that it also returns true for exit sections, and the module loader will automatically sort them in the init region of the module. However, the solution there was not completely arch-independent. ARM is a special case where it supplies its own module_{init, exit}_section() functions. Instead of pushing the exit section checks into module_init_section(), just implement the exit section check in layout_sections(), so that we don't have to touch arch-dependent code. Fixes: 33121347fb1c ("module: treat exit sections the same as init sections when !CONFIG_MODULE_UNLOAD") Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2021-05-16cifs: remove deadstore in cifs_close_all_deferred_files()wenhuizhang
Deadstore detected by Lukas Bulwahn's CodeChecker Tool (ELISA group). line 741 struct cifsInodeInfo *cinode; line 747 cinode = CIFS_I(d_inode(cfile->dentry)); could be deleted. cinode on filesystem should not be deleted when files are closed, they are representations of some data fields on a physical disk, thus no further action is required. The virtual inode on vfs will be handled by vfs automatically, and the denotation is inode, which is different from the cinode. Signed-off-by: wenhuizhang <wenhui@gwmail.gwu.edu> Reviewed-by: Aurelien Aptel <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-17kbuild: dummy-tools: adjust to stricter stackprotector checkMichal Kubecek
Commit 3fb0fdb3bbe7 ("x86/stackprotector/32: Make the canary into a regular percpu variable") modified the stackprotector check on 32-bit x86 to check if gcc supports using %fs as canary. Adjust dummy-tools gcc script to pass this new test by returning "%fs" rather than "%gs" if it detects -mstack-protector-guard-reg=fs on command line. Fixes: 3fb0fdb3bbe7 ("x86/stackprotector/32: Make the canary into a regular percpu variable") Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-05-17scripts/jobserver-exec: Fix a typo ("envirnoment")Jonathan Neuschäfer
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-05-17tools build: Fix quiet cmd indentationKees Cook
The tools quiet cmd output has mismatched indentation (and extra space character between cmd name and target name) compared to the rest of kbuild out: HOSTCC scripts/insert-sys-cert LD /srv/code/tools/objtool/arch/x86/objtool-in.o LD /srv/code/tools/objtool/libsubcmd-in.o AR /srv/code/tools/objtool/libsubcmd.a HOSTLD scripts/genksyms/genksyms CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o LD /srv/code/tools/objtool/objtool-in.o LINK /srv/code/tools/objtool/objtool HOSTLD scripts/mod/modpost CC kernel/bounds.s Adjust to match the rest of kbuild. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-05-17usb: chipidea: udc: assign interrupt number to USB gadget structureLi Jun
Chipidea also need sync interrupt before unbind the udc while gadget remove driver, otherwise setup irq handling may happen while unbind, see below dump generated from android function switch stress test: [ 4703.503056] android_work: sent uevent USB_STATE=CONNECTED [ 4703.514642] android_work: sent uevent USB_STATE=DISCONNECTED [ 4703.651339] android_work: sent uevent USB_STATE=CONNECTED [ 4703.661806] init: Control message: Processed ctl.stop for 'adbd' from pid: 561 (system_server) [ 4703.673469] init: processing action (init.svc.adbd=stopped) from (/system/etc/init/hw/init.usb.configfs.rc:14) [ 4703.676451] Unable to handle kernel read from unreadable memory at virtual address 0000000000000090 [ 4703.676454] Mem abort info: [ 4703.676458] ESR = 0x96000004 [ 4703.676461] EC = 0x25: DABT (current EL), IL = 32 bits [ 4703.676464] SET = 0, FnV = 0 [ 4703.676466] EA = 0, S1PTW = 0 [ 4703.676468] Data abort info: [ 4703.676471] ISV = 0, ISS = 0x00000004 [ 4703.676473] CM = 0, WnR = 0 [ 4703.676478] user pgtable: 4k pages, 48-bit VAs, pgdp=000000004a867000 [ 4703.676481] [0000000000000090] pgd=0000000000000000, p4d=0000000000000000 [ 4703.676503] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 4703.758297] Modules linked in: synaptics_dsx_i2c moal(O) mlan(O) [ 4703.764327] CPU: 0 PID: 235 Comm: lmkd Tainted: G W O 5.10.9-00001-g3f5fd8487c38-dirty #63 [ 4703.773720] Hardware name: NXP i.MX8MNano EVK board (DT) [ 4703.779033] pstate: 60400085 (nZCv daIf +PAN -UAO -TCO BTYPE=--) [ 4703.785046] pc : _raw_write_unlock_bh+0xc0/0x2c8 [ 4703.789667] lr : android_setup+0x4c/0x168 [ 4703.793676] sp : ffff80001256bd80 [ 4703.796989] x29: ffff80001256bd80 x28: 00000000000000a8 [ 4703.802304] x27: ffff800012470000 x26: ffff80006d923000 [ 4703.807616] x25: ffff800012471000 x24: ffff00000b091140 [ 4703.812929] x23: ffff0000077dbd38 x22: ffff0000077da490 [ 4703.818242] x21: ffff80001256be30 x20: 0000000000000000 [ 4703.823554] x19: 0000000000000080 x18: ffff800012561048 [ 4703.828867] x17: 0000000000000000 x16: 0000000000000039 [ 4703.834180] x15: ffff8000106ad258 x14: ffff80001194c277 [ 4703.839493] x13: 0000000000003934 x12: 0000000000000000 [ 4703.844805] x11: 0000000000000000 x10: 0000000000000001 [ 4703.850117] x9 : 0000000000000000 x8 : 0000000000000090 [ 4703.855429] x7 : 6f72646e61203a70 x6 : ffff8000124f2450 [ 4703.860742] x5 : ffffffffffffffff x4 : 0000000000000009 [ 4703.866054] x3 : ffff8000108a290c x2 : ffff00007fb3a9c8 [ 4703.871367] x1 : 0000000000000000 x0 : 0000000000000090 [ 4703.876681] Call trace: [ 4703.879129] _raw_write_unlock_bh+0xc0/0x2c8 [ 4703.883397] android_setup+0x4c/0x168 [ 4703.887059] udc_irq+0x824/0xa9c [ 4703.890287] ci_irq+0x124/0x148 [ 4703.893429] __handle_irq_event_percpu+0x84/0x268 [ 4703.898131] handle_irq_event+0x64/0x14c [ 4703.902054] handle_fasteoi_irq+0x110/0x210 [ 4703.906236] __handle_domain_irq+0x8c/0xd4 [ 4703.910332] gic_handle_irq+0x6c/0x124 [ 4703.914081] el1_irq+0xdc/0x1c0 [ 4703.917221] _raw_spin_unlock_irq+0x20/0x54 [ 4703.921405] finish_task_switch+0x84/0x224 [ 4703.925502] __schedule+0x4a4/0x734 [ 4703.928990] schedule+0xa0/0xe8 [ 4703.932132] do_notify_resume+0x150/0x184 [ 4703.936140] work_pending+0xc/0x40c [ 4703.939633] Code: d5384613 521b0a69 d5184609 f9800111 (885ffd01) [ 4703.945732] ---[ end trace ba5c1875ae49d53c ]--- [ 4703.950350] Kernel panic - not syncing: Oops: Fatal exception in interrupt [ 4703.957223] SMP: stopping secondary CPUs [ 4703.961151] Kernel Offset: disabled [ 4703.964638] CPU features: 0x0240002,2000200c [ 4703.968905] Memory Limit: none [ 4703.971963] Rebooting in 5 seconds.. Tested-by: faqiang.zhu <faqiang.zhu@nxp.com> Signed-off-by: Li Jun <jun.li@nxp.com> Link: https://lore.kernel.org/r/1620989984-7653-1-git-send-email-jun.li@nxp.com Signed-off-by: Peter Chen <peter.chen@kernel.org>
2021-05-16xfs: adjust rt allocation minlen when extszhint > rtextsizeDarrick J. Wong
xfs_bmap_rtalloc doesn't handle realtime extent files with extent size hints larger than the rt volume's extent size properly, because xfs_bmap_extsize_align can adjust the offset/length parameters to try to fit the extent size hint. Under these conditions, minlen has to be large enough so that any allocation returned by xfs_rtallocate_extent will be large enough to cover at least one of the blocks that the caller asked for. If the allocation is too short, bmapi_write will return no mapping for the requested range, which causes ENOSPC errors in other parts of the filesystem. Therefore, adjust minlen upwards to fix this. This can be found by running generic/263 (g/127 or g/522) with a realtime extent size hint that's larger than the rt volume extent size. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
2021-05-16Linux 5.13-rc2v5.13-rc2Linus Torvalds
2021-05-16Merge tag 'driver-core-5.13-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are two driver fixes for driver core changes that happened in 5.13-rc1. The clk driver fix resolves a many-reported issue with booting some devices, and the USB typec fix resolves the reported problem of USB systems on some embedded boards. Both of these have been in linux-next this week with no reported issues" * tag 'driver-core-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: clk: Skip clk provider registration when np is NULL usb: typec: tcpm: Don't block probing of consumers of "connector" nodes
2021-05-16Merge tag 'staging-5.13-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO driver fixes from Greg KH: "Here are some small IIO driver fixes and one Staging driver fix for 5.13-rc2. Nothing major, just some resolutions for reported problems: - gcc-11 bogus warning fix for rtl8723bs - iio driver tiny fixes All of these have been in linux-next for many days with no reported issues" * tag 'staging-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: tsl2583: Fix division by a zero lux_val iio: core: return ENODEV if ioctl is unknown iio: core: fix ioctl handlers removal iio: gyro: mpu3050: Fix reported temperature value iio: hid-sensors: select IIO_TRIGGERED_BUFFER under HID_SENSOR_IIO_TRIGGER iio: proximity: pulsedlight: Fix rumtime PM imbalance on error iio: light: gp2ap002: Fix rumtime PM imbalance on error staging: rtl8723bs: avoid bogus gcc warning
2021-05-16Merge tag 'usb-5.13-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB fixes for 5.13-rc2. They consist of a number of resolutions for reported issues: - typec fixes for found problems - xhci fixes and quirk additions - dwc3 driver fixes - minor fixes found by Coverity - cdc-wdm fixes for reported problems All of these have been in linux-next for a few days with no reported issues" * tag 'usb-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits) usb: core: hub: fix race condition about TRSMRCY of resume usb: typec: tcpm: Fix SINK_DISCOVERY current limit for Rp-default xhci: Add reset resume quirk for AMD xhci controller. usb: xhci: Increase timeout for HC halt xhci: Do not use GFP_KERNEL in (potentially) atomic context xhci: Fix giving back cancelled URBs even if halted endpoint can't reset xhci-pci: Allow host runtime PM as default for Intel Alder Lake xHCI usb: musb: Fix an error message usb: typec: tcpm: Fix wrong handling for Not_Supported in VDM AMS usb: typec: tcpm: Send DISCOVER_IDENTITY from dedicated work usb: typec: ucsi: Retrieve all the PDOs instead of just the first 4 usb: fotg210-hcd: Fix an error message docs: usb: function: Modify path name usb: dwc3: omap: improve extcon initialization usb: typec: ucsi: Put fwnode in any case during ->probe() usb: typec: tcpm: Fix wrong handling in GET_SINK_CAP usb: dwc2: Remove obsolete MODULE_ constants from platform.c usb: dwc3: imx8mp: fix error return code in dwc3_imx8mp_probe() usb: dwc3: imx8mp: detect dwc3 core node via compatible string usb: dwc3: gadget: Return success always for kick transfer in ep queue ...
2021-05-16Merge tag 'timers-urgent-2021-05-16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "Two fixes for timers: - Use the ALARM feature check in the alarmtimer core code insted of the old method of checking for the set_alarm() callback. Drivers can have that callback set but the feature bit cleared. If such a RTC device is selected then alarms wont work. - Use a proper define to let the preprocessor check whether Hyper-V VDSO clocksource should be active. The code used a constant in an enum with #ifdef, which evaluates to always false and disabled the clocksource for VDSO" * tag 'timers-urgent-2021-05-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/hyper-v: Re-enable VDSO_CLOCKMODE_HVCLOCK on X86 alarmtimer: Check RTC features instead of ops
2021-05-16Merge tag 'for-linus-5.13b-rc2-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - two patches for error path fixes - a small series for fixing a regression with swiotlb with Xen on Arm * tag 'for-linus-5.13b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/swiotlb: check if the swiotlb has already been initialized arm64: do not set SWIOTLB_NO_FORCE when swiotlb is required xen/arm: move xen_swiotlb_detect to arm/swiotlb-xen.h xen/unpopulated-alloc: fix error return code in fill_list() xen/gntdev: fix gntdev_mmap() error exit path
2021-05-16Merge tag 'x86_urgent_for_v5.13_rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: "The three SEV commits are not really urgent material. But we figured since getting them in now will avoid a huge amount of conflicts between future SEV changes touching tip, the kvm and probably other trees, sending them to you now would be best. The idea is that the tip, kvm etc branches for 5.14 will all base ontop of -rc2 and thus everything will be peachy. What is more, those changes are purely mechanical and defines movement so they should be fine to go now (famous last words). Summary: - Enable -Wundef for the compressed kernel build stage - Reorganize SEV code to streamline and simplify future development" * tag 'x86_urgent_for_v5.13_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot/compressed: Enable -Wundef x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG x86/sev: Move GHCB MSR protocol and NAE definitions in a common header x86/sev-es: Rename sev-es.{ch} to sev.{ch}
2021-05-16ALSA: intel8x0: Don't update period unless preparedTakashi Iwai
The interrupt handler of intel8x0 calls snd_intel8x0_update() whenever the hardware sets the corresponding status bit for each stream. This works fine for most cases as long as the hardware behaves properly. But when the hardware gives a wrong bit set, this leads to a zero- division Oops, and reportedly, this seems what happened on a VM. For fixing the crash, this patch adds a internal flag indicating that the stream is ready to be updated, and check it (as well as the flag being in suspended) to ignore such spurious update. Cc: <stable@vger.kernel.org> Reported-and-tested-by: Sergey Senozhatsky <senozhatsky@chromium.org> Link: https://lore.kernel.org/r/s5h5yzi7uh0.wl-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-05-16irqchip: Remove redundant error printingZhen Lei
When devm_ioremap_resource() fails, a clear enough error message will be printed by its subfunction __devm_ioremap_resource(). The error information contains the device name, failure cause, and possibly resource information. Therefore, remove the error printing here to simplify code and reduce the binary size. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210511125428.6108-2-thunder.leizhen@huawei.com
2021-05-15Merge tag 'powerpc-5.13-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix a regression in the conversion of the 64-bit BookE interrupt entry to C. - Fix KVM hosts running with the hash MMU since the recent KVM gfn changes. - Fix a deadlock in our paravirt spinlocks when hcall tracing is enabled. - Several fixes for oopses in our runtime code patching for security mitigations. - A couple of minor fixes for the recent conversion of 32-bit interrupt entry/exit to C. - Fix __get_user() causing spurious crashes in sigreturn due to a bad inline asm constraint, spotted with GCC 11. - A fix for the way we track IRQ masking state vs NMI interrupts when using the new scv system call entry path. - A couple more minor fixes. Thanks to Cédric Le Goater, Christian Zigotzky, Christophe Leroy, Naveen N. Rao, Nicholas Piggin Paul Menzel, and Sean Christopherson. * tag 'powerpc-5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64e/interrupt: Fix nvgprs being clobbered powerpc/64s: Make NMI record implicitly soft-masked code as irqs disabled powerpc/64s: Fix stf mitigation patching w/strict RWX & hash powerpc/64s: Fix entry flush patching w/strict RWX & hash powerpc/64s: Fix crashes when toggling entry flush barrier powerpc/64s: Fix crashes when toggling stf barrier KVM: PPC: Book3S HV: Fix kvm_unmap_gfn_range_hv() for Hash MMU powerpc/legacy_serial: Fix UBSAN: array-index-out-of-bounds powerpc/signal: Fix possible build failure with unsafe_copy_fpr_{to/from}_user powerpc/uaccess: Fix __get_user() with CONFIG_CC_HAS_ASM_GOTO_OUTPUT powerpc/pseries: warn if recursing into the hcall tracing code powerpc/pseries: use notrace hcall variant for H_CEDE idle powerpc/pseries: Don't trace hcall tracing wrapper powerpc/pseries: Fix hcall tracing recursion in pv queued spinlocks powerpc/syscall: Calling kuap_save_and_lock() is wrong powerpc/interrupts: Fix kuep_unlock() call
2021-05-15scsi: pm80xx: Fix drives missing during rmmod/insmod loopAjish Koshy
When driver is loaded after rmmod some drives are not showing up during discovery. SATA drives are directly attached to the controller connected phys. During device discovery, the IDENTIFY command (qc timeout (cmd 0xec)) is timing out during revalidation. This will trigger abort from host side and controller successfully aborts the command and returns success. Post this successful abort response ATA library decides to mark the disk as NODEV. To overcome this, inside pm8001_scan_start() after phy_start() call, add get start response and wait for few milliseconds to trigger next phy start. This millisecond delay will give sufficient time for the controller state machine to accept next phy start. Link: https://lore.kernel.org/r/20210505120103.24497-1-ajish.koshy@microchip.com Signed-off-by: Ajish Koshy <ajish.koshy@microchip.com> Signed-off-by: Viswas G <viswas.g@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-15scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword()Zhen Lei
Fix to return a negative error code from the error handling case instead of 0 as done elsewhere in this function. Link: https://lore.kernel.org/r/20210514090952.6715-1-thunder.leizhen@huawei.com Fixes: a9083016a531 ("[SCSI] qla2xxx: Add ISP82XX support.") Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit (git 2.34.1) at 2025-09-12 17:45:19 +0000