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2023-02-09lib: parser: optimize match_NUMBER apis to use local arrayLi Lingfeng
Memory will be allocated to store substring_t in match_strdup(), which means the caller of match_strdup() may need to be scheduled out to wait for reclaiming memory. smatch complains that this can cuase sleeping in an atoic context. Using local array to store substring_t to remove the restriction. Link: https://lkml.kernel.org/r/20230120032352.242767-1-lilingfeng3@huawei.com Link: https://lore.kernel.org/all/20221104023938.2346986-5-yukuai1@huaweicloud.com/ Link: https://lkml.kernel.org/r/20230120032352.242767-1-lilingfeng3@huawei.com Fixes: 2c0647988433 ("blk-iocost: don't release 'ioc->lock' while updating params") Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com> Reported-by: Yu Kuai <yukuai1@huaweicloud.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: BingJing Chang <bingjingc@synology.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Hou Tao <houtao1@huawei.com> Cc: James Smart <james.smart@broadcom.com> Cc: Jan Kara <jack@suse.cz> Cc: Jens Axboe <axboe@kernel.dk> Cc: yangerkun <yangerkun@huawei.com> Cc: Zhang Yi <yi.zhang@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-09mm: shrinkers: fix deadlock in shrinker debugfsQi Zheng
The debugfs_remove_recursive() is invoked by unregister_shrinker(), which is holding the write lock of shrinker_rwsem. It will waits for the handler of debugfs file complete. The handler also needs to hold the read lock of shrinker_rwsem to do something. So it may cause the following deadlock: CPU0 CPU1 debugfs_file_get() shrinker_debugfs_count_show()/shrinker_debugfs_scan_write() unregister_shrinker() --> down_write(&shrinker_rwsem); debugfs_remove_recursive() // wait for (A) --> wait_for_completion(); // wait for (B) --> down_read_killable(&shrinker_rwsem) debugfs_file_put() -- (A) up_write() -- (B) The down_read_killable() can be killed, so that the above deadlock can be recovered. But it still requires an extra kill action, otherwise it will block all subsequent shrinker-related operations, so it's better to fix it. [akpm@linux-foundation.org: fix CONFIG_SHRINKER_DEBUG=n stub] Link: https://lkml.kernel.org/r/20230202105612.64641-1-zhengqi.arch@bytedance.com Fixes: 5035ebc644ae ("mm: shrinkers: introduce debugfs interface for memory shrinkers") Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Muchun Song <songmuchun@bytedance.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-09mm: hwpoison: support recovery from ksm_might_need_to_copy()Kefeng Wang
When the kernel copies a page from ksm_might_need_to_copy(), but runs into an uncorrectable error, it will crash since poisoned page is consumed by kernel, this is similar to the issue recently fixed by Copy-on-write poison recovery. When an error is detected during the page copy, return VM_FAULT_HWPOISON in do_swap_page(), and install a hwpoison entry in unuse_pte() when swapoff, which help us to avoid system crash. Note, memory failure on a KSM page will be skipped, but still call memory_failure_queue() to be consistent with general memory failure process, and we could support KSM page recovery in the feature. [wangkefeng.wang@huawei.com: enhance unuse_pte(), fix issue found by lkp] Link: https://lkml.kernel.org/r/20221213120523.141588-1-wangkefeng.wang@huawei.com [wangkefeng.wang@huawei.com: update changelog, alter ksm_might_need_to_copy(), restore unlikely() in unuse_pte()] Link: https://lkml.kernel.org/r/20230201074433.96641-1-wangkefeng.wang@huawei.com Link: https://lkml.kernel.org/r/20221209072801.193221-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-09kasan: fix Oops due to missing calls to kasan_arch_is_ready()Christophe Leroy
On powerpc64, you can build a kernel with KASAN as soon as you build it with RADIX MMU support. However if the CPU doesn't have RADIX MMU, KASAN isn't enabled at init and the following Oops is encountered. [ 0.000000][ T0] KASAN not enabled as it requires radix! [ 4.484295][ T26] BUG: Unable to handle kernel data access at 0xc00e000000804a04 [ 4.485270][ T26] Faulting instruction address: 0xc00000000062ec6c [ 4.485748][ T26] Oops: Kernel access of bad area, sig: 11 [#1] [ 4.485920][ T26] BE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries [ 4.486259][ T26] Modules linked in: [ 4.486637][ T26] CPU: 0 PID: 26 Comm: kworker/u2:2 Not tainted 6.2.0-rc3-02590-gf8a023b0a805 #249 [ 4.486907][ T26] Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1200 0xf000005 of:SLOF,HEAD pSeries [ 4.487445][ T26] Workqueue: eval_map_wq .tracer_init_tracefs_work_func [ 4.488744][ T26] NIP: c00000000062ec6c LR: c00000000062bb84 CTR: c0000000002ebcd0 [ 4.488867][ T26] REGS: c0000000049175c0 TRAP: 0380 Not tainted (6.2.0-rc3-02590-gf8a023b0a805) [ 4.489028][ T26] MSR: 8000000002009032 <SF,VEC,EE,ME,IR,DR,RI> CR: 44002808 XER: 00000000 [ 4.489584][ T26] CFAR: c00000000062bb80 IRQMASK: 0 [ 4.489584][ T26] GPR00: c0000000005624d4 c000000004917860 c000000001cfc000 1800000000804a04 [ 4.489584][ T26] GPR04: c0000000003a2650 0000000000000cc0 c00000000000d3d8 c00000000000d3d8 [ 4.489584][ T26] GPR08: c0000000049175b0 a80e000000000000 0000000000000000 0000000017d78400 [ 4.489584][ T26] GPR12: 0000000044002204 c000000003790000 c00000000435003c c0000000043f1c40 [ 4.489584][ T26] GPR16: c0000000043f1c68 c0000000043501a0 c000000002106138 c0000000043f1c08 [ 4.489584][ T26] GPR20: c0000000043f1c10 c0000000043f1c20 c000000004146c40 c000000002fdb7f8 [ 4.489584][ T26] GPR24: c000000002fdb834 c000000003685e00 c000000004025030 c000000003522e90 [ 4.489584][ T26] GPR28: 0000000000000cc0 c0000000003a2650 c000000004025020 c000000004025020 [ 4.491201][ T26] NIP [c00000000062ec6c] .kasan_byte_accessible+0xc/0x20 [ 4.491430][ T26] LR [c00000000062bb84] .__kasan_check_byte+0x24/0x90 [ 4.491767][ T26] Call Trace: [ 4.491941][ T26] [c000000004917860] [c00000000062ae70] .__kasan_kmalloc+0xc0/0x110 (unreliable) [ 4.492270][ T26] [c0000000049178f0] [c0000000005624d4] .krealloc+0x54/0x1c0 [ 4.492453][ T26] [c000000004917990] [c0000000003a2650] .create_trace_option_files+0x280/0x530 [ 4.492613][ T26] [c000000004917a90] [c000000002050d90] .tracer_init_tracefs_work_func+0x274/0x2c0 [ 4.492771][ T26] [c000000004917b40] [c0000000001f9948] .process_one_work+0x578/0x9f0 [ 4.492927][ T26] [c000000004917c30] [c0000000001f9ebc] .worker_thread+0xfc/0x950 [ 4.493084][ T26] [c000000004917d60] [c00000000020be84] .kthread+0x1a4/0x1b0 [ 4.493232][ T26] [c000000004917e10] [c00000000000d3d8] .ret_from_kernel_thread+0x58/0x60 [ 4.495642][ T26] Code: 60000000 7cc802a6 38a00000 4bfffc78 60000000 7cc802a6 38a00001 4bfffc68 60000000 3d20a80e 7863e8c2 792907c6 <7c6348ae> 20630007 78630fe0 68630001 [ 4.496704][ T26] ---[ end trace 0000000000000000 ]--- The Oops is due to kasan_byte_accessible() not checking the readiness of KASAN. Add missing call to kasan_arch_is_ready() and bail out when not ready. The same problem is observed with ____kasan_kfree_large() so fix it the same. Also, as KASAN is not available and no shadow area is allocated for linear memory mapping, there is no point in allocating shadow mem for vmalloc memory as shown below in /sys/kernel/debug/kernel_page_tables ---[ kasan shadow mem start ]--- 0xc00f000000000000-0xc00f00000006ffff 0x00000000040f0000 448K r w pte valid present dirty accessed 0xc00f000000860000-0xc00f00000086ffff 0x000000000ac10000 64K r w pte valid present dirty accessed 0xc00f3ffffffe0000-0xc00f3fffffffffff 0x0000000004d10000 128K r w pte valid present dirty accessed ---[ kasan shadow mem end ]--- So, also verify KASAN readiness before allocating and poisoning shadow mem for VMAs. Link: https://lkml.kernel.org/r/150768c55722311699fdcf8f5379e8256749f47d.1674716617.git.christophe.leroy@csgroup.eu Fixes: 41b7a347bf14 ("powerpc: Book3S 64-bit outline-only KASAN support") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reported-by: Nathan Lynch <nathanl@linux.ibm.com> Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: <stable@vger.kernel.org> [5.19+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-10Merge tag 'amd-drm-fixes-6.2-2023-02-09' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.2-2023-02-09: amdgpu: - Add a parameter to disable S/G display - Re-enable S/G display on all DCNs Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230209174504.7577-1-alexander.deucher@amd.com
2023-02-10Merge tag 'drm-intel-fixes-2023-02-09' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Display watermark fix (Ville) - fbdev fix for PSR, FBC, DRRS (Jouni) - Move fd_install after last use of fence (Rob) - Initialize the obj flags for shmem objects (Aravind) - Fix VBT DSI DVO port handling (Ville) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Y+UZ0rh2YlhTrE4t@intel.com
2023-02-10Merge tag 'drm-misc-fixes-2023-02-09' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes A fix for a circular refcounting in drm/client, one for a memory leak in amdgpu and a virtio fence fix when interrupted Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20230209083600.7hi6roht6xxgldgz@houat
2023-02-09Bluetooth: btintel: Set Per Platform Antenna Gain(PPAG)Seema Sreemantha
Antenna gain is defined as the antenna’s ability to increase the Tx power in a given direction. Intel is certifying its products with fixed reference antenna peak gain values (3/5dBi). The feature takes into account the actual antenna gain, and increases output power values, which results in a performance improvement. After firmware download is completed, driver reads from ACPI table and configures PPAG as required. ACPI table entry for PPAG is defined as below. Name (PPAG, Package (0x02) { 0x00000001, Package (0x02) { 0x00000012, /* Bluetooth Domain */ 0x00000001 /* 1 - Enable PPAG, 0 - Disable PPAG */ } }) btmon log: < HCI Command: Intel Configure Per Platform Antenna Gain (0x3f|0x0219) plen 12 Mcc: 0x00000000 Selector: Enable Delta: 0x00000000 > HCI Event: Command Complete (0x0e) plen 4 Intel Configure Per Platform Antenna Gain (0x3f|0x0219) ncmd 1 Status: Success (0x00) Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Seema Sreemantha <seema.sreemantha@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: Make sure LE create conn cancel is sent when timeoutArchie Pusaka
When sending LE create conn command, we set a timer with a duration of HCI_LE_CONN_TIMEOUT before timing out and calling create_le_conn_complete. Additionally, when receiving the command complete, we also set a timer with the same duration to call le_conn_timeout. Usually the latter will be triggered first, which then sends a LE create conn cancel command. However, due to the nature of racing, it is possible for the former to be called first, thereby calling the chain hci_conn_failed -> hci_conn_del -> cancel_delayed_work, thereby preventing LE create conn cancel to be sent. In this situation, the controller will be stuck in trying the LE connection. This patch flushes le_conn_timeout on create_le_conn_complete to make sure we always send LE create connection cancel, if necessary. Signed-off-by: Archie Pusaka <apusaka@chromium.org> Reviewed-by: Ying Hsu <yinghsu@chromium.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: Free potentially unfreed SCO connectionArchie Pusaka
It is possible to initiate a SCO connection while deleting the corresponding ACL connection, e.g. in below scenario: (1) < hci setup sync connect command (2) > hci disconn complete event (for the acl connection) (3) > hci command complete event (for(1), failure) When it happens, hci_cs_setup_sync_conn won't be able to obtain the reference to the SCO connection, so it will be stuck and potentially hinder subsequent connections to the same device. This patch prevents that by also deleting the SCO connection if it is still not established when the corresponding ACL connection is deleted. Signed-off-by: Archie Pusaka <apusaka@chromium.org> Reviewed-by: Ying Hsu <yinghsu@chromium.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: hci_qca: get wakeup status from serdev device handleZhengping Jiang
Bluetooth controller attached via the UART is handled by the serdev driver. Get the wakeup status from the device handle through serdev, instead of the parent path. Fixes: c1a74160eaf1 ("Bluetooth: hci_qca: Add device_may_wakeup support") Signed-off-by: Zhengping Jiang <jiangzp@google.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: L2CAP: Fix potential user-after-freeLuiz Augusto von Dentz
This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime. Fixes: a6a5568c03c4 ("Bluetooth: Lock the L2CAP channel when sending") Reported-by: Alexander Coffin <alex.coffin@matician.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: MGMT: add CIS feature bits to controller informationPauli Virtanen
Userspace needs to know whether the adapter has feature support for Connected Isochronous Stream - Central/Peripheral, so it can set up LE Audio features accordingly. Expose these feature bits as settings in MGMT controller info. Signed-off-by: Pauli Virtanen <pav@iki.fi> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: hci_conn: Refactor hci_bind_bis() since it always succeedsKees Cook
The compiler thinks "conn" might be NULL after a call to hci_bind_bis(), which cannot happen. Avoid any confusion by just making it not return a value since it cannot fail. Fixes the warnings seen with GCC 13: In function 'arch_atomic_dec_and_test', inlined from 'atomic_dec_and_test' at ../include/linux/atomic/atomic-instrumented.h:576:9, inlined from 'hci_conn_drop' at ../include/net/bluetooth/hci_core.h:1391:6, inlined from 'hci_connect_bis' at ../net/bluetooth/hci_conn.c:2124:3: ../arch/x86/include/asm/rmwcc.h:37:9: warning: array subscript 0 is outside array bounds of 'atomic_t[0]' [-Warray-bounds=] 37 | asm volatile (fullop CC_SET(cc) \ | ^~~ ... In function 'hci_connect_bis': cc1: note: source object is likely at address zero Fixes: eca0ae4aea66 ("Bluetooth: Add initial implementation of BIS connections") Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-bluetooth@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: HCI: Replace zero-length arrays with flexible-array membersGustavo A. R. Silva
Zero-length arrays are deprecated[1] and we are moving towards adopting C99 flexible-array members instead. So, replace zero-length arrays in a couple of structures with flex-array members. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays=3 [2]. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays [1] Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [2] Link: https://github.com/KSPP/linux/issues/78 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: qca: Fix sparse warningsLuiz Augusto von Dentz
This fixes the following warnings: drivers/bluetooth/hci_qca.c:1014:26: warning: cast to restricted __le16 drivers/bluetooth/hci_qca.c:1028:37: warning: cast to restricted __le32 Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: btusb: Add VID:PID 13d3:3529 for Realtek RTL8821CEMoises Cardona
This patch adds VID:PID 13d3:3529 to the btusb.c file. This VID:PID is found in the Realtek RTL8821CE module (M.2 module AW-CB304NF on an ASUS E210MA laptop) Output of /sys/kernel/debug/usb/devices: T: Bus=01 Lev=01 Prnt=01 Port=07 Cnt=02 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3529 Rev= 1.10 S: Manufacturer=Realtek S: Product=Bluetooth Radio C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Moises Cardona <moisesmcardona@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: btusb: Add new PID/VID 0489:e0f2 for MT7921Mario Limonciello
This bluetooth device is found in a combo WLAN/BT card for a MediaTek 7921e. The device information: T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e0f2 Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I: If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us Cc: Sean Wang <sean.wang@mediatek.com> Cc: Anson Tsao <anson.tsao@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Bluetooth: Fix issue with Actions Semi ATS2851 based devicesMarcel Holtmann
Their devices claim to support the erroneous data reporting, but don't actually support the required commands. So blacklist them and add a quirk. < HCI Command: Read Default Erroneous Data Reporting (0x03|0x005a) plen 0 > HCI Event: Command Status (0x0f) plen 4 Read Default Erroneous Data Reporting (0x03|0x005a) ncmd 1 Status: Unknown HCI Command (0x01) T: Bus=02 Lev=02 Prnt=08 Port=02 Cnt=01 Dev#= 10 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=10d7 ProdID=b012 Rev=88.91 S: Manufacturer=Actions S: Product=general adapter S: SerialNumber=ACTIONS1234 C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=01(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=01(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=01(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=01(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=01(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=01(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
net/devlink/leftover.c / net/core/devlink.c: 565b4824c39f ("devlink: change port event netdev notifier from per-net to global") f05bd8ebeb69 ("devlink: move code to a dedicated directory") 687125b5799c ("devlink: split out core code") https://lore.kernel.org/all/20230208094657.379f2b1a@canb.auug.org.au/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-09tools/resolve_btfids: Pass HOSTCFLAGS as EXTRA_CFLAGS to prepare targetsJiri Olsa
Thorsten reported build issue with command line that defined extra HOSTCFLAGS that were not passed into 'prepare' targets, but were used to build resolve_btfids objects. This results in build fail when these objects are linked together: /usr/bin/ld: /build.../tools/bpf/resolve_btfids//libbpf/libbpf.a(libbpf-in.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a PIE \ object; recompile with -fPIE Fixing this by passing HOSTCFLAGS in EXTRA_CFLAGS as part of HOST_OVERRIDES variable for prepare targets. [1] https://lore.kernel.org/bpf/f7922132-6645-6316-5675-0ece4197bfff@leemhuis.info/ Fixes: 56a2df7615fa ("tools/resolve_btfids: Compile resolve_btfids as host program") Reported-by: Thorsten Leemhuis <linux@leemhuis.info> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Thorsten Leemhuis <linux@leemhuis.info> Acked-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/bpf/20230209143735.4112845-1-jolsa@kernel.org
2023-02-09riscv: Fixup race condition on PG_dcache_clean in flush_icache_pteGuo Ren
In commit 588a513d3425 ("arm64: Fix race condition on PG_dcache_clean in __sync_icache_dcache()"), we found RISC-V has the same issue as the previous arm64. The previous implementation didn't guarantee the correct sequence of operations, which means flush_icache_all() hasn't been called when the PG_dcache_clean was set. That would cause a risk of page synchronization. Fixes: 08f051eda33b ("RISC-V: Flush I$ when making a dirty page executable") Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230127035306.1819561-1-guoren@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-09riscv: kprobe: Fixup misaligned load textGuo Ren
The current kprobe would cause a misaligned load for the probe point. This patch fixup it with two half-word loads instead. Fixes: c22b0bcb1dd0 ("riscv: Add kprobes supported") Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Link: https://lore.kernel.org/linux-riscv/878rhig9zj.fsf@all.your.base.are.belong.to.us/ Reported-by: Bjorn Topel <bjorn.topel@gmail.com> Reviewed-by: Björn Töpel <bjorn@kernel.org> Link: https://lore.kernel.org/r/20230204063531.740220-1-guoren@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-09Merge tag 'pm-6.2-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Fix the incorrect value returned by cpufreq driver's ->get() callback for Qualcomm platforms (Douglas Anderson)" * tag 'pm-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: qcom-hw: Fix cpufreq_driver->get() for non-LMH systems
2023-02-09net: enable usercopy for skb_small_head_cacheEric Dumazet
syzbot and other bots reported that we have to enable user copy to/from skb->head. [1] We can prevent access to skb_shared_info, which is a nice improvement over standard kmem_cache. Layout of these kmem_cache objects is: < SKB_SMALL_HEAD_HEADROOM >< struct skb_shared_info > usercopy: Kernel memory overwrite attempt detected to SLUB object 'skbuff_small_head' (offset 32, size 20)! ------------[ cut here ]------------ kernel BUG at mm/usercopy.c:102 ! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.2.0-rc6-syzkaller-01425-gcb6b2e11a42d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:usercopy_abort+0xbd/0xbf mm/usercopy.c:102 Code: e8 ee ad ba f7 49 89 d9 4d 89 e8 4c 89 e1 41 56 48 89 ee 48 c7 c7 20 2b 5b 8a ff 74 24 08 41 57 48 8b 54 24 20 e8 7a 17 fe ff <0f> 0b e8 c2 ad ba f7 e8 7d fb 08 f8 48 8b 0c 24 49 89 d8 44 89 ea RSP: 0000:ffffc90000067a48 EFLAGS: 00010286 RAX: 000000000000006b RBX: ffffffff8b5b6ea0 RCX: 0000000000000000 RDX: ffff8881401c0000 RSI: ffffffff8166195c RDI: fffff5200000cf3b RBP: ffffffff8a5b2a60 R08: 000000000000006b R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8bf2a925 R13: ffffffff8a5b29a0 R14: 0000000000000014 R15: ffffffff8a5b2960 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000c48e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __check_heap_object+0xdd/0x110 mm/slub.c:4761 check_heap_object mm/usercopy.c:196 [inline] __check_object_size mm/usercopy.c:251 [inline] __check_object_size+0x1da/0x5a0 mm/usercopy.c:213 check_object_size include/linux/thread_info.h:199 [inline] check_copy_size include/linux/thread_info.h:235 [inline] copy_from_iter include/linux/uio.h:186 [inline] copy_from_iter_full include/linux/uio.h:194 [inline] memcpy_from_msg include/linux/skbuff.h:3977 [inline] qrtr_sendmsg+0x65f/0x970 net/qrtr/af_qrtr.c:965 sock_sendmsg_nosec net/socket.c:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 say_hello+0xf6/0x170 net/qrtr/ns.c:325 qrtr_ns_init+0x220/0x2b0 net/qrtr/ns.c:804 qrtr_proto_init+0x59/0x95 net/qrtr/af_qrtr.c:1296 do_one_initcall+0x141/0x790 init/main.c:1306 do_initcall_level init/main.c:1379 [inline] do_initcalls init/main.c:1395 [inline] do_basic_setup init/main.c:1414 [inline] kernel_init_freeable+0x6f9/0x782 init/main.c:1634 kernel_init+0x1e/0x1d0 init/main.c:1522 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Fixes: bf9f1baa279f ("net: add dedicated kmem_cache for typical/small skb->head") Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Link: https://lore.kernel.org/linux-next/CA+G9fYs-i-c2KTSA7Ai4ES_ZESY1ZnM=Zuo8P1jN00oed6KHMA@mail.gmail.com Link: https://lore.kernel.org/r/20230208142508.3278406-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-09Merge tag 'net-6.2-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from can and ipsec subtrees. Current release - regressions: - sched: fix off by one in htb_activate_prios() - eth: mana: fix accessing freed irq affinity_hint - eth: ice: fix out-of-bounds KASAN warning in virtchnl Current release - new code bugs: - eth: mtk_eth_soc: enable special tag when any MAC uses DSA Previous releases - always broken: - core: fix sk->sk_txrehash default - neigh: make sure used and confirmed times are valid - mptcp: be careful on subflow status propagation on errors - xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr() - phylink: move phy_device_free() to correctly release phy device - eth: mlx5: - fix crash unsetting rx-vlan-filter in switchdev mode - fix hang on firmware reset - serialize module cleanup with reload and remove" * tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits) selftests: forwarding: lib: quote the sysctl values net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used rds: rds_rm_zerocopy_callback() use list_first_entry() net: txgbe: Update support email address selftests: Fix failing VXLAN VNI filtering test selftests: mptcp: stop tests earlier selftests: mptcp: allow more slack for slow test-case mptcp: be careful on subflow status propagation on errors mptcp: fix locking for in-kernel listener creation mptcp: fix locking for setsockopt corner-case mptcp: do not wait for bare sockets' timeout net: ethernet: mtk_eth_soc: fix DSA TX tag hwaccel for switch port 0 nfp: ethtool: fix the bug of setting unsupported port speed txhash: fix sk->sk_txrehash default net: ethernet: mtk_eth_soc: fix wrong parameters order in __xdp_rxq_info_reg() net: ethernet: mtk_eth_soc: enable special tag when any MAC uses DSA net: sched: sch: Fix off by one in htb_activate_prios() igc: Add ndo_tx_timeout support net: mana: Fix accessing freed irq affinity_hint hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC ...
2023-02-09Merge tag 'for-linus-2023020901' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID fixes from Benjamin Tissoires: - fix potential infinite loop with a badly crafted HID device (Xin Zhao) - fix regression from 6.1 in USB logitech devices potentially making their mouse wheel not working (Bastien Nocera) - clean up in AMD sensors, which fixes a long time resume bug (Mario Limonciello) - few device small fixes and quirks * tag 'for-linus-2023020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: HID: Ignore battery for ELAN touchscreen 29DF on HP HID: amd_sfh: if no sensors are enabled, clean up HID: logitech: Disable hi-res scrolling on USB HID: core: Fix deadloop in hid_apply_multiplier. HID: Ignore battery for Elan touchscreen on Asus TP420IA HID: elecom: add support for TrackBall 056E:011C
2023-02-09Merge tag '6.2-rc8-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifx fix from Steve French: "Small fix for use after free" * tag '6.2-rc8-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6: cifs: Fix use-after-free in rdata->read_into_pages()
2023-02-09net/i40e: Replace 0-length array with flexible arrayKees Cook
Zero-length arrays are deprecated[1]. Replace struct i40e_lump_tracking's "list" 0-length array with a flexible array. Detected with GCC 13, using -fstrict-flex-arrays=3: In function 'i40e_put_lump', inlined from 'i40e_clear_interrupt_scheme' at drivers/net/ethernet/intel/i40e/i40e_main.c:5145:2: drivers/net/ethernet/intel/i40e/i40e_main.c:278:27: warning: array subscript <unknown> is outside array bounds of 'u16[0]' {aka 'short unsigned int[]'} [-Warray-bounds=] 278 | pile->list[i] = 0; | ~~~~~~~~~~^~~ drivers/net/ethernet/intel/i40e/i40e.h: In function 'i40e_clear_interrupt_scheme': drivers/net/ethernet/intel/i40e/i40e.h:179:13: note: while referencing 'list' 179 | u16 list[0]; | ^~~~ [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Tony Nguyen <anthony.l.nguyen@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org> Cc: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-02-09i40e: use ERR_PTR error print in i40e messagesJan Sokolowski
In i40e_status removal patches, i40e_status conversion to strings was removed in order to easily refactor the code to use standard errornums. This however made it more difficult for read error logs. Use %pe formatter to print error messages in human-readable format. Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-02-09i40e: use int for i40e_statusJan Sokolowski
To prepare for removal of i40e_status, change the variables from i40e_status to int. This eases the transition when values are changed to return standard int error codes over enum i40e_status. As such changes often also change variable orders, a cleanup is also applied here to make variables conform to RCT and some lines are also reformatted where applicable. Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-02-09i40e: Remove string printing for i40e_statusJan Sokolowski
Remove the i40e_stat_str() function which prints the string representation of the i40e_status error code. With upcoming changes moving away from i40e_status, there will be no need for this function Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-02-09i40e: Remove unused i40e status codesJan Sokolowski
In an effort to remove i40e status codes and replace them with standard kernel errornums, unused values of i40e_status_code were removed. Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-02-09btrfs: free device in btrfs_close_devices for a single device filesystemAnand Jain
We have this check to make sure we don't accidentally add older devices that may have disappeared and re-appeared with an older generation from being added to an fs_devices (such as a replace source device). This makes sense, we don't want stale disks in our file system. However for single disks this doesn't really make sense. I've seen this in testing, but I was provided a reproducer from a project that builds btrfs images on loopback devices. The loopback device gets cached with the new generation, and then if it is re-used to generate a new file system we'll fail to mount it because the new fs is "older" than what we have in cache. Fix this by freeing the cache when closing the device for a single device filesystem. This will ensure that the mount command passed device path is scanned successfully during the next mount. CC: stable@vger.kernel.org # 5.10+ Reported-by: Daan De Meyer <daandemeyer@fb.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2023-02-09btrfs: lock the inode in shared mode before starting fiemapFilipe Manana
Currently fiemap does not take the inode's lock (VFS lock), it only locks a file range in the inode's io tree. This however can lead to a deadlock if we have a concurrent fsync on the file and fiemap code triggers a fault when accessing the user space buffer with fiemap_fill_next_extent(). The deadlock happens on the inode's i_mmap_lock semaphore, which is taken both by fsync and btrfs_page_mkwrite(). This deadlock was recently reported by syzbot and triggers a trace like the following: task:syz-executor361 state:D stack:20264 pid:5668 ppid:5119 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5293 [inline] __schedule+0x995/0xe20 kernel/sched/core.c:6606 schedule+0xcb/0x190 kernel/sched/core.c:6682 wait_on_state fs/btrfs/extent-io-tree.c:707 [inline] wait_extent_bit+0x577/0x6f0 fs/btrfs/extent-io-tree.c:751 lock_extent+0x1c2/0x280 fs/btrfs/extent-io-tree.c:1742 find_lock_delalloc_range+0x4e6/0x9c0 fs/btrfs/extent_io.c:488 writepage_delalloc+0x1ef/0x540 fs/btrfs/extent_io.c:1863 __extent_writepage+0x736/0x14e0 fs/btrfs/extent_io.c:2174 extent_write_cache_pages+0x983/0x1220 fs/btrfs/extent_io.c:3091 extent_writepages+0x219/0x540 fs/btrfs/extent_io.c:3211 do_writepages+0x3c3/0x680 mm/page-writeback.c:2581 filemap_fdatawrite_wbc+0x11e/0x170 mm/filemap.c:388 __filemap_fdatawrite_range mm/filemap.c:421 [inline] filemap_fdatawrite_range+0x175/0x200 mm/filemap.c:439 btrfs_fdatawrite_range fs/btrfs/file.c:3850 [inline] start_ordered_ops fs/btrfs/file.c:1737 [inline] btrfs_sync_file+0x4ff/0x1190 fs/btrfs/file.c:1839 generic_write_sync include/linux/fs.h:2885 [inline] btrfs_do_write_iter+0xcd3/0x1280 fs/btrfs/file.c:1684 call_write_iter include/linux/fs.h:2189 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x7dc/0xc50 fs/read_write.c:584 ksys_write+0x177/0x2a0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7d4054e9b9 RSP: 002b:00007f7d404fa2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f7d405d87a0 RCX: 00007f7d4054e9b9 RDX: 0000000000000090 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 00007f7d405a51d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 61635f65646f6e69 R13: 65646f7475616f6e R14: 7261637369646f6e R15: 00007f7d405d87a8 </TASK> INFO: task syz-executor361:5697 blocked for more than 145 seconds. Not tainted 6.2.0-rc3-syzkaller-00376-g7c6984405241 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor361 state:D stack:21216 pid:5697 ppid:5119 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5293 [inline] __schedule+0x995/0xe20 kernel/sched/core.c:6606 schedule+0xcb/0x190 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260 btrfs_page_mkwrite+0x417/0xc80 fs/btrfs/inode.c:8526 do_page_mkwrite+0x19e/0x5e0 mm/memory.c:2947 wp_page_shared+0x15e/0x380 mm/memory.c:3295 handle_pte_fault mm/memory.c:4949 [inline] __handle_mm_fault mm/memory.c:5073 [inline] handle_mm_fault+0x1b79/0x26b0 mm/memory.c:5219 do_user_addr_fault+0x69b/0xcb0 arch/x86/mm/fault.c:1428 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:copy_user_short_string+0xd/0x40 arch/x86/lib/copy_user_64.S:233 Code: 74 0a 89 (...) RSP: 0018:ffffc9000570f330 EFLAGS: 00050202 RAX: ffffffff843e6601 RBX: 00007fffffffefc8 RCX: 0000000000000007 RDX: 0000000000000000 RSI: ffffc9000570f3e0 RDI: 0000000020000120 RBP: ffffc9000570f490 R08: 0000000000000000 R09: fffff52000ae1e83 R10: fffff52000ae1e83 R11: 1ffff92000ae1e7c R12: 0000000000000038 R13: ffffc9000570f3e0 R14: 0000000020000120 R15: ffffc9000570f3e0 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline] _copy_to_user+0xe9/0x130 lib/usercopy.c:34 copy_to_user include/linux/uaccess.h:169 [inline] fiemap_fill_next_extent+0x22e/0x410 fs/ioctl.c:144 emit_fiemap_extent+0x22d/0x3c0 fs/btrfs/extent_io.c:3458 fiemap_process_hole+0xa00/0xad0 fs/btrfs/extent_io.c:3716 extent_fiemap+0xe27/0x2100 fs/btrfs/extent_io.c:3922 btrfs_fiemap+0x172/0x1e0 fs/btrfs/inode.c:8209 ioctl_fiemap fs/ioctl.c:219 [inline] do_vfs_ioctl+0x185b/0x2980 fs/ioctl.c:810 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl+0x83/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7d4054e9b9 RSP: 002b:00007f7d390d92f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7d405d87b0 RCX: 00007f7d4054e9b9 RDX: 0000000020000100 RSI: 00000000c020660b RDI: 0000000000000005 RBP: 00007f7d405a51d0 R08: 00007f7d390d9700 R09: 0000000000000000 R10: 00007f7d390d9700 R11: 0000000000000246 R12: 61635f65646f6e69 R13: 65646f7475616f6e R14: 7261637369646f6e R15: 00007f7d405d87b8 </TASK> What happens is the following: 1) Task A is doing an fsync, enters btrfs_sync_file() and flushes delalloc before locking the inode and the i_mmap_lock semaphore, that is, before calling btrfs_inode_lock(); 2) After task A flushes delalloc and before it calls btrfs_inode_lock(), another task dirties a page; 3) Task B starts a fiemap without FIEMAP_FLAG_SYNC, so the page dirtied at step 2 remains dirty and unflushed. Then when it enters extent_fiemap() and it locks a file range that includes the range of the page dirtied in step 2; 4) Task A calls btrfs_inode_lock() and locks the inode (VFS lock) and the inode's i_mmap_lock semaphore in write mode. Then it tries to flush delalloc by calling start_ordered_ops(), which will block, at find_lock_delalloc_range(), when trying to lock the range of the page dirtied at step 2, since this range was locked by the fiemap task (at step 3); 5) Task B generates a page fault when accessing the user space fiemap buffer with a call to fiemap_fill_next_extent(). The fault handler needs to call btrfs_page_mkwrite() for some other page of our inode, and there we deadlock when trying to lock the inode's i_mmap_lock semaphore in read mode, since the fsync task locked it in write mode (step 4) and the fsync task can not progress because it's waiting to lock a file range that is currently locked by us (the fiemap task, step 3). Fix this by taking the inode's lock (VFS lock) in shared mode when entering fiemap. This effectively serializes fiemap with fsync (except the most expensive part of fsync, the log sync), preventing this deadlock. Reported-by: syzbot+cc35f55c41e34c30dcb5@syzkaller.appspotmail.com Link: https://lore.kernel.org/linux-btrfs/00000000000032dc7305f2a66f46@google.com/ CC: stable@vger.kernel.org # 6.1+ Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2023-02-09Revert "drm/amd/display: disable S/G display on DCN 3.1.5"Alex Deucher
This reverts commit 3cc67fe1b3aa1ac4720e002f2aa2d08c9199a584. Some users have reported flickerng with S/G display. We've tried extensively to reproduce and debug the issue on a wide variety of platform configurations (DRAM bandwidth, etc.) and a variety of monitors, but so far have not been able to. We disabled S/G display on a number of platforms to address this but that leads to failure to pin framebuffers errors and blank displays when there is memory pressure or no displays at all on systems with limited carveout (e.g., Chromebooks). We have a parameter to disable this as a debugging option as a way for users to disable this, depending on their use case, and for us to help debug this further. Having this enabled seems like the lesser of to evils. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-09Revert "drm/amd/display: disable S/G display on DCN 2.1.0"Alex Deucher
This reverts commit 2404f9b0ea0153c3fddb0c4d7a43869dc8608f6f. Some users have reported flickerng with S/G display. We've tried extensively to reproduce and debug the issue on a wide variety of platform configurations (DRAM bandwidth, etc.) and a variety of monitors, but so far have not been able to. We disabled S/G display on a number of platforms to address this but that leads to failure to pin framebuffers errors and blank displays when there is memory pressure or no displays at all on systems with limited carveout (e.g., Chromebooks). We have a parameter to disable this as a debugging option as a way for users to disable this, depending on their use case, and for us to help debug this further. Having this enabled seems like the lesser of to evils. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-09Revert "drm/amd/display: disable S/G display on DCN 3.1.2/3"Alex Deucher
This reverts commit f081cd4ca2658752a8c0e2353d50aec80d07c65f. Some users have reported flickerng with S/G display. We've tried extensively to reproduce and debug the issue on a wide variety of platform configurations (DRAM bandwidth, etc.) and a variety of monitors, but so far have not been able to. We disabled S/G display on a number of platforms to address this but that leads to failure to pin framebuffers errors and blank displays when there is memory pressure or no displays at all on systems with limited carveout (e.g., Chromebooks). We have a parameter to disable this as a debugging option as a way for users to disable this, depending on their use case, and for us to help debug this further. Having this enabled seems like the lesser of to evils. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-09drm/amdgpu: add S/G display parameterAlex Deucher
Some users have reported flickerng with S/G display. We've tried extensively to reproduce and debug the issue on a wide variety of platform configurations (DRAM bandwidth, etc.) and a variety of monitors, but so far have not been able to. We disabled S/G display on a number of platforms to address this but that leads to failure to pin framebuffers errors and blank displays when there is memory pressure or no displays at all on systems with limited carveout (e.g., Chromebooks). Add a option to disable this as a debugging option as a way for users to disable this, depending on their use case, and for us to help debug this further. v2: fix typo Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-09Merge tag 'nvme-6.2-2023-02-09' of git://git.infradead.org/nvme into block-6.2Jens Axboe
Pull NVMe fix from Christoph: "nvme fixes for Linux 6.2 - fix a static checker warning for a variable introduces in the last pull request (Tom Rix)" * tag 'nvme-6.2-2023-02-09' of git://git.infradead.org/nvme: nvme-auth: mark nvme_auth_wq static
2023-02-09usb: core: add quirk for Alcor Link AK9563 smartcard readerMark Pearson
The Alcor Link AK9563 smartcard reader used on some Lenovo platforms doesn't work. If LPM is enabled the reader will provide an invalid usb config descriptor. Added quirk to disable LPM. Verified fix on Lenovo P16 G1 and T14 G3 Tested-by: Miroslav Zatko <mzatko@mirexoft.com> Tested-by: Dennis Wassenberg <dennis.wassenberg@secunet.com> Cc: stable@vger.kernel.org Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com> Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20230208181223.1092654-1-mpearson-lenovo@squebb.ca Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-09usb: typec: altmodes/displayport: Fix probe pin assign checkPrashant Malani
While checking Pin Assignments of the port and partner during probe, we don't take into account whether the peripheral is a plug or receptacle. This manifests itself in a mode entry failure on certain docks and dongles with captive cables. For instance, the Startech.com Type-C to DP dongle (Model #CDP2DP) advertises its DP VDO as 0x405. This would fail the Pin Assignment compatibility check, despite it supporting Pin Assignment C as a UFP. Update the check to use the correct DP Pin Assign macros that take the peripheral's receptacle bit into account. Fixes: c1e5c2f0cb8a ("usb: typec: altmodes/displayport: correct pin assignment for UFP receptacles") Cc: stable@vger.kernel.org Reported-by: Diana Zigterman <dzigterman@chromium.org> Signed-off-by: Prashant Malani <pmalani@chromium.org> Link: https://lore.kernel.org/r/20230208205318.131385-1-pmalani@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-09Revert "usb: gadget: u_ether: Do not make UDC parent of the net device"Paul Cercueil
This reverts commit 321b59870f850a10dbb211ecd2bd87b41497ea6f. This commit broke USB networking on Ingenic SoCs and maybe elsewhere. The actual reason is unknown; and while a proper fix would be better, we're sitting at -rc7 now, so a revert is justified - and we can work on re-introducing this change for 6.3. Fixes: 321b59870f85 ("usb: gadget: u_ether: Do not make UDC parent of the net device") Signed-off-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.kernel.org/r/20230209105626.10597-1-paul@crapouillou.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-09arm64: efi: Force the use of SetVirtualAddressMap() on eMAG and Altra Max ↵Darren Hart
machines Commit 550b33cfd445 ("arm64: efi: Force the use of SetVirtualAddressMap() on Altra machines") identifies the Altra family via the family field in the type#1 SMBIOS record. eMAG and Altra Max machines are similarly affected but not detected with the strict strcmp test. The type1_family smbios string is not an entirely reliable means of identifying systems with this issue as OEMs can, and do, use their own strings for these fields. However, until we have a better solution, capture the bulk of these systems by adding strcmp matching for "eMAG" and "Altra Max". Fixes: 550b33cfd445 ("arm64: efi: Force the use of SetVirtualAddressMap() on Altra machines") Cc: <stable@vger.kernel.org> # 6.1.x Cc: Alexandru Elisei <alexandru.elisei@gmail.com> Signed-off-by: Darren Hart <darren@os.amperecomputing.com> Tested-by: Justin He <justin.he@arm.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2023-02-09selftests: forwarding: lib: quote the sysctl valuesHangbin Liu
When set/restore sysctl value, we should quote the value as some keys may have multi values, e.g. net.ipv4.ping_group_range Fixes: f5ae57784ba8 ("selftests: forwarding: lib: Add sysctl_set(), sysctl_restore()") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/20230208032110.879205-1-liuhangbin@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-09net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping ↵Vladimir Oltean
is used While running this selftest which usually passes: ~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0 TEST: swp0: Unicast IPv4 to primary MAC address [ OK ] TEST: swp0: Unicast IPv4 to macvlan MAC address [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address, promisc [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti [ OK ] TEST: swp0: Multicast IPv4 to joined group [ OK ] TEST: swp0: Multicast IPv4 to unknown group [ OK ] TEST: swp0: Multicast IPv4 to unknown group, promisc [ OK ] TEST: swp0: Multicast IPv4 to unknown group, allmulti [ OK ] TEST: swp0: Multicast IPv6 to joined group [ OK ] TEST: swp0: Multicast IPv6 to unknown group [ OK ] TEST: swp0: Multicast IPv6 to unknown group, promisc [ OK ] TEST: swp0: Multicast IPv6 to unknown group, allmulti [ OK ] if I start PTP timestamping then run it again (debug prints added by me), the unknown IPv6 MC traffic is seen by the CPU port even when it should have been dropped: ~/selftests/drivers/net/dsa# ptp4l -i swp0 -2 -P -m ptp4l[225.410]: selected /dev/ptp1 as PTP clock [ 225.445746] mscc_felix 0000:00:00.5: ocelot_l2_ptp_trap_add: port 0 adding L2 PTP trap [ 225.453815] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_add: port 0 adding IPv4 PTP event trap [ 225.462703] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_add: port 0 adding IPv4 PTP general trap [ 225.471768] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_add: port 0 adding IPv6 PTP event trap [ 225.480651] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_add: port 0 adding IPv6 PTP general trap ptp4l[225.488]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[225.488]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ^C ~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0 TEST: swp0: Unicast IPv4 to primary MAC address [ OK ] TEST: swp0: Unicast IPv4 to macvlan MAC address [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address, promisc [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti [ OK ] TEST: swp0: Multicast IPv4 to joined group [ OK ] TEST: swp0: Multicast IPv4 to unknown group [ OK ] TEST: swp0: Multicast IPv4 to unknown group, promisc [ OK ] TEST: swp0: Multicast IPv4 to unknown group, allmulti [ OK ] TEST: swp0: Multicast IPv6 to joined group [ OK ] TEST: swp0: Multicast IPv6 to unknown group [FAIL] reception succeeded, but should have failed TEST: swp0: Multicast IPv6 to unknown group, promisc [ OK ] TEST: swp0: Multicast IPv6 to unknown group, allmulti [ OK ] The PGID_MCIPV6 is configured correctly to not flood to the CPU, I checked that. Furthermore, when I disable back PTP RX timestamping (ptp4l doesn't do that when it exists), packets are RX filtered again as they should be: ~/selftests/drivers/net/dsa# hwstamp_ctl -i swp0 -r 0 [ 218.202854] mscc_felix 0000:00:00.5: ocelot_l2_ptp_trap_del: port 0 removing L2 PTP trap [ 218.212656] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_del: port 0 removing IPv4 PTP event trap [ 218.222975] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_del: port 0 removing IPv4 PTP general trap [ 218.233133] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_del: port 0 removing IPv6 PTP event trap [ 218.242251] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_del: port 0 removing IPv6 PTP general trap current settings: tx_type 1 rx_filter 12 new settings: tx_type 1 rx_filter 0 ~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0 TEST: swp0: Unicast IPv4 to primary MAC address [ OK ] TEST: swp0: Unicast IPv4 to macvlan MAC address [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address, promisc [ OK ] TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti [ OK ] TEST: swp0: Multicast IPv4 to joined group [ OK ] TEST: swp0: Multicast IPv4 to unknown group [ OK ] TEST: swp0: Multicast IPv4 to unknown group, promisc [ OK ] TEST: swp0: Multicast IPv4 to unknown group, allmulti [ OK ] TEST: swp0: Multicast IPv6 to joined group [ OK ] TEST: swp0: Multicast IPv6 to unknown group [ OK ] TEST: swp0: Multicast IPv6 to unknown group, promisc [ OK ] TEST: swp0: Multicast IPv6 to unknown group, allmulti [ OK ] So it's clear that something in the PTP RX trapping logic went wrong. Looking a bit at the code, I can see that there are 4 typos, which populate "ipv4" VCAP IS2 key filter fields for IPv6 keys. VCAP IS2 keys of type OCELOT_VCAP_KEY_IPV4 and OCELOT_VCAP_KEY_IPV6 are handled by is2_entry_set(). OCELOT_VCAP_KEY_IPV4 looks at &filter->key.ipv4, and OCELOT_VCAP_KEY_IPV6 at &filter->key.ipv6. Simply put, when we populate the wrong key field, &filter->key.ipv6 fields "proto.mask" and "proto.value" remain all zeroes (or "don't care"). So is2_entry_set() will enter the "else" of this "if" condition: if (msk == 0xff && (val == IPPROTO_TCP || val == IPPROTO_UDP)) and proceed to ignore the "proto" field. The resulting rule will match on all IPv6 traffic, trapping it to the CPU. This is the reason why the local_termination.sh selftest sees it, because control traps are stronger than the PGID_MCIPV6 used for flooding (from the forwarding data path). But the problem is in fact much deeper. We trap all IPv6 traffic to the CPU, but if we're bridged, we set skb->offload_fwd_mark = 1, so software forwarding will not take place and IPv6 traffic will never reach its destination. The fix is simple - correct the typos. I was intentionally inaccurate in the commit message about the breakage occurring when any PTP timestamping is enabled. In fact it only happens when L4 timestamping is requested (HWTSTAMP_FILTER_PTP_V2_EVENT or HWTSTAMP_FILTER_PTP_V2_L4_EVENT). But ptp4l requests a larger RX timestamping filter than it needs for "-2": HWTSTAMP_FILTER_PTP_V2_EVENT. I wanted people skimming through git logs to not think that the bug doesn't affect them because they only use ptp4l in L2 mode. Fixes: 96ca08c05838 ("net: mscc: ocelot: set up traps for PTP packets") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Link: https://lore.kernel.org/r/20230207183117.1745754-1-vladimir.oltean@nxp.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-09rds: rds_rm_zerocopy_callback() use list_first_entry()Pietro Borrello
rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Use list_first_entry() to actually access the first element of the rs_zcookie_queue list. Fixes: 9426bbc6de99 ("rds: use list structure to track information for zerocopy completion notification") Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it> Link: https://lore.kernel.org/r/20230202-rds-zerocopy-v3-1-83b0df974f9a@diag.uniroma1.it Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-09drm/vc4: crtc: Increase setup cost in core clock calculation to handle ↵Dom Cobley
extreme reduced blanking The formula that determines the core clock requirement based on pixel clock and blanking has been determined experimentally to minimise the clock while supporting all modes we've seen. A new reduced blanking mode (4kp60 at 533MHz rather than the standard 594MHz) has been seen that doesn't produce a high enough clock and results in "flip_done timed out" error. Increase the setup cost in the formula to make this work. The result is a reduced blanking mode increases by up to 7MHz while leaving the standard timing mode untouched Link: https://github.com/raspberrypi/linux/issues/4446 Fixes: 16e101051f32 ("drm/vc4: Increase the core clock based on HVS load") Signed-off-by: Dom Cobley <popcornmix@gmail.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20230127145558.446123-1-maxime@cerno.tech
2023-02-09drm/vc4: hdmi: Always enable GCP with AVMUTE clearedDom Cobley
Issue is some displays go blank at the point of firmware to kms handover. Plugging/unplugging hdmi cable, power cycling display, or switching standby off/on typically resolve this case. Finally managed to find a display that suffers from this, and track down the issue. The firmware uses AVMUTE in normal operation. It will set AVMUTE before disabling hdmi clocks and phy. It will clear AVMUTE after clocks and phy are set up for a new hdmi mode. But with the hdmi handover from firmware to kms, AVMUTE will be set by firmware. kms driver typically has no GCP packet (except for deep colour modes). The spec isn't clear on whether to consider the AVMUTE as continuing indefinitely in the absence of a GCP packet, or to consider that state to have ended. Most displays behave as we want, but there are a number (from multiple manufacturers) which need to see AVMUTE cleared before displaying a picture. Lets just always enable GCP packet with AVMUTE cleared. That resolves the issue on problematic displays. From HDMI 1.4 spec: A CD field of zero (Color Depth not indicated) shall be used whenever the Sink does not indicate support for Deep Color. This value may also be used in Deep Color mode to transmit a GCP indicating only non-Deep Color information (e.g. AVMUTE). So use CD=0 where we were previously not enabling a GCP. Link: https://forum.libreelec.tv/thread/24780-le-10-0-1-rpi4-no-picture-after-update-from-le-10-0-0 Signed-off-by: Dom Cobley <popcornmix@gmail.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20230127161219.457058-1-maxime@cerno.tech
2023-02-09drm/vc4: Fix YUV plane handling when planes are in different buffersDave Stevenson
YUV images can either be presented as one allocation with offsets for the different planes, or multiple allocations with 0 offsets. The driver only ever calls drm_fb_[dma|cma]_get_gem_obj with plane index 0, therefore any application using the second approach was incorrectly rendered. Correctly determine the address for each plane, removing the assumption that the base address is the same for each. Fixes: fc04023fafec ("drm/vc4: Add support for YUV planes.") Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20230127155708.454704-1-maxime@cerno.tech
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