summaryrefslogtreecommitdiff
path: root/drivers
AgeCommit message (Collapse)Author
2023-11-21HID: apple: add Jamesdonkey and A3R to non-apple keyboards listYihong Cao
Jamesdonkey A3R keyboard is identified as "Jamesdonkey A3R" in wired mode, "A3R-U" in wireless mode and "A3R" in bluetooth mode. Adding them to non-apple keyboards fixes function key. Signed-off-by: Yihong Cao <caoyihong4@outlook.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-11-21HID: mcp2221: Allow IO to start during probeHamish Martin
During the probe we add an I2C adapter and as soon as we add that adapter it may be used for a transfer (e.g via the code in i2cdetect()). Those transfers are not able to complete and time out. This is because the HID raw_event callback (mcp2221_raw_event) will not be invoked until the HID device's 'driver_input_lock' is marked up at the completion of the probe in hid_device_probe(). This starves the driver of the responses it is waiting for. In order to allow the I2C transfers to complete while we are still in the probe, start the IO once we have completed init of the HID device. This issue seems to have been seen before and a patch was submitted but it seems it was never accepted. See: https://lore.kernel.org/all/20221103222714.21566-3-Enrik.Berkhan@inka.de/ Signed-off-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-11-21HID: mcp2221: Set driver data before I2C adapter addHamish Martin
The process of adding an I2C adapter can invoke I2C accesses on that new adapter (see i2c_detect()). Ensure we have set the adapter's driver data to avoid null pointer dereferences in the xfer functions during the adapter add. This has been noted in the past and the same fix proposed but not completed. See: https://lore.kernel.org/lkml/ef597e73-ed71-168e-52af-0d19b03734ac@vigem.de/ Signed-off-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-11-21accel/ivpu/37xx: Fix hangs related to MMIO resetJacek Lawrynowicz
There is no need to call MMIO reset using VPU_37XX_BUTTRESS_VPU_IP_RESET register. IP will be reset by FLR or by entering d0i3. Also IP reset during power_up is not needed as the VPU is already in reset. Removing MMIO reset improves stability as it a partial device reset that is not safe in some corner cases. This change also brings back ivpu_boot_pwr_domain_disable() that helps to properly power down VPU when it is hung by a buggy workload. Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Fixes: 828d63042aec ("accel/ivpu: Don't enter d0i3 during FLR") Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231115111004.1304092-1-jacek.lawrynowicz@linux.intel.com
2023-11-21drm/sprd: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert the sprd drm drivers from always returning zero in the remove callback to the void returning variant. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-33-u.kleine-koenig@pengutronix.de
2023-11-21drm/nouveau: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-32-u.kleine-koenig@pengutronix.de
2023-11-21drm/meson: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-31-u.kleine-koenig@pengutronix.de
2023-11-21drm/mediatek: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-30-u.kleine-koenig@pengutronix.de
2023-11-21drm/kmb: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-29-u.kleine-koenig@pengutronix.de
2023-11-21drm/imx: lcdc: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-28-u.kleine-koenig@pengutronix.de
2023-11-21drm/imx/dcss: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-27-u.kleine-koenig@pengutronix.de
2023-11-21drm/etnaviv: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert the etnaviv drm driver from always returning zero in the remove callback to the void returning variant. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-25-u.kleine-koenig@pengutronix.de
2023-11-21drm/bridge: tpd12s015: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-24-u.kleine-koenig@pengutronix.de
2023-11-21drm/bridge: cdns-mhdp8546: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-23-u.kleine-koenig@pengutronix.de
2023-11-21drm/bridge: cdns-mhdp8546: Improve error reporting in remove callbackUwe Kleine-König
Replace the generic error message issued by the driver core when the remove callback returns non-zero ("remove callback returned a non-zero value. This will be ignored.") by a message that tells the actual problem. Also simplify a bit by checking the return value of wait_event_timeout a bit later. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-22-u.kleine-koenig@pengutronix.de
2023-11-21drm/armada: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert the armada drm drivers from always returning zero in the remove callback to the void returning variant. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-21-u.kleine-koenig@pengutronix.de
2023-11-21drm/arcpgu: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-20-u.kleine-koenig@pengutronix.de
2023-11-21drm/bridge: tpd12s015: Drop buggy __exit annotation for remove functionUwe Kleine-König
With tpd12s015_remove() marked with __exit this function is discarded when the driver is compiled as a built-in. The result is that when the driver unbinds there is no cleanup done which results in resource leakage or worse. Fixes: cff5e6f7e83f ("drm/bridge: Add driver for the TI TPD12S015 HDMI level shifter") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-19-u.kleine-koenig@pengutronix.de
2023-11-21platform/x86: intel_telemetry: Fix kernel doc descriptionsAndy Shevchenko
LKP found issues with a kernel doc in the driver: core.c:116: warning: Function parameter or member 'ioss_evtconfig' not described in 'telemetry_update_events' core.c:188: warning: Function parameter or member 'ioss_evtconfig' not described in 'telemetry_get_eventconfig' It looks like it were copy'n'paste typos when these descriptions had been introduced. Fix the typos. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202310070743.WALmRGSY-lkp@intel.com/ Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231120150756.1661425-1-andriy.shevchenko@linux.intel.com Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-11-21Merge tag 'thunderbolt-for-v6.7-rc3' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-linus Mika writes: thunderbolt: Fixes for v6.7-rc3 This includes following USB4/Thunderbolt fixes for v6.7-rc3: - Fix a lane bonding issue on ASMedia USB4 device - Send uevents when link is switched to asymmetric or symmetric - Only add device router DP IN adapters to the head of resource list to avoid issues during system resume. All these have been in linux-next with no reported issues. * tag 'thunderbolt-for-v6.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (1451 commits) thunderbolt: Only add device router DP IN to the head of the DP resource list thunderbolt: Send uevent after asymmetric/symmetric switch thunderbolt: Set lane bonding bit only for downstream port
2023-11-21drm/nouveau/fence:: fix warning directly dereferencing a rcu pointerAbhinav Singh
Fix a sparse warning with this message "warning:dereference of noderef expression". In this context it means we are dereferencing a __rcu tagged pointer directly. We should not be directly dereferencing a rcu pointer. To get a normal (non __rcu tagged pointer) from a __rcu tagged pointer we are using the function unrcu_pointer(...). The non __rcu tagged pointer then can be dereferenced just like a normal pointer. I tested with qemu with this command qemu-system-x86_64 \ -m 2G \ -smp 2 \ -kernel bzImage \ -append "console=ttyS0 root=/dev/sda earlyprintk=serial net.ifnames=0" \ -drive file=bullseye.img,format=raw \ -net user,host=10.0.2.10,hostfwd=tcp:127.0.0.1:10021-:22 \ -net nic,model=e1000 \ -enable-kvm \ -nographic \ -pidfile vm.pid \ 2>&1 | tee vm.log with lockdep enabled. Fixes: 0ec5f02f0e2c ("drm/nouveau: prevent stale fence->channel pointers, and protect with rcu") Signed-off-by: Abhinav Singh <singhabhinav9051571833@gmail.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231113191303.3277733-1-singhabhinav9051571833@gmail.com
2023-11-20s390/dasd: protect device queue against concurrent accessJan Höppner
In dasd_profile_start() the amount of requests on the device queue are counted. The access to the device queue is unprotected against concurrent access. With a lot of parallel I/O, especially with alias devices enabled, the device queue can change while dasd_profile_start() is accessing the queue. In the worst case this leads to a kernel panic due to incorrect pointer accesses. Fix this by taking the device lock before accessing the queue and counting the requests. Additionally the check for a valid profile data pointer can be done earlier to avoid unnecessary locking in a hot path. Cc: <stable@vger.kernel.org> Fixes: 4fa52aa7a82f ("[S390] dasd: add enhanced DASD statistics interface") Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Link: https://lore.kernel.org/r/20231025132437.1223363-3-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-20s390/dasd: resolve spelling mistakeMuhammad Muzammil
resolve typing mistake from pimary to primary Signed-off-by: Muhammad Muzammil <m.muzzammilashraf@gmail.com> Link: https://lore.kernel.org/r/20231010043140.28416-1-m.muzzammilashraf@gmail.com Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Link: https://lore.kernel.org/r/20231025132437.1223363-2-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-20bpf, netkit: Add indirect call wrapper for fetching peer devDaniel Borkmann
ndo_get_peer_dev is used in tcx BPF fast path, therefore make use of indirect call wrapper and therefore optimize the bpf_redirect_peer() internal handling a bit. Add a small skb_get_peer_dev() wrapper which utilizes the INDIRECT_CALL_1() macro instead of open coding. Future work could potentially add a peer pointer directly into struct net_device in future and convert veth and netkit over to use it so that eventually ndo_get_peer_dev can be removed. Co-developed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/r/20231114004220.6495-7-daniel@iogearbox.net Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-20veth: Use tstats per-CPU traffic countersPeilin Ye
Currently veth devices use the lstats per-CPU traffic counters, which only cover TX traffic. veth_get_stats64() actually populates RX stats of a veth device from its peer's TX counters, based on the assumption that a veth device can _only_ receive packets from its peer, which is no longer true: For example, recent CNIs (like Cilium) can use the bpf_redirect_peer() BPF helper to redirect traffic from NIC's tc ingress to veth's tc ingress (in a different netns), skipping veth's peer device. Unfortunately, this kind of traffic isn't currently accounted for in veth's RX stats. In preparation for the fix, use tstats (instead of lstats) to maintain both RX and TX counters for each veth device. We'll use RX counters for bpf_redirect_peer() traffic, and keep using TX counters for the usual "peer-to-peer" traffic. In veth_get_stats64(), calculate RX stats by _adding_ RX count to peer's TX count, in order to cover both kinds of traffic. veth_stats_rx() might need a name change (perhaps to "veth_stats_xdp()") for less confusion, but let's leave it to another patch to keep the fix minimal. Signed-off-by: Peilin Ye <peilin.ye@bytedance.com> Co-developed-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://lore.kernel.org/r/20231114004220.6495-5-daniel@iogearbox.net Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-20netkit: Add tstats per-CPU traffic countersDaniel Borkmann
Add dev->tstats traffic accounting to netkit. The latter contains per-CPU RX and TX counters. The dev's TX counters are bumped upon pass/unspec as well as redirect verdicts, in other words, on everything except for drops. The dev's RX counters are bumped upon successful __netif_rx(), as well as from skb_do_redirect() (not part of this commit here). Using dev->lstats with having just a single packets/bytes counter and inferring one another's RX counters from the peer dev's lstats is not possible given skb_do_redirect() can also bump the device's stats. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://lore.kernel.org/r/20231114004220.6495-4-daniel@iogearbox.net Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-20net: Move {l,t,d}stats allocation to core and convert veth & vrfDaniel Borkmann
Move {l,t,d}stats allocation to the core and let netdevs pick the stats type they need. That way the driver doesn't have to bother with error handling (allocation failure checking, making sure free happens in the right spot, etc) - all happening in the core. Co-developed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Cc: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20231114004220.6495-3-daniel@iogearbox.net Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-20net, vrf: Move dstats structure to coreDaniel Borkmann
Just move struct pcpu_dstats out of the vrf into the core, and streamline the field names slightly, so they better align with the {t,l}stats ones. No functional change otherwise. A conversion of the u64s to u64_stats_t could be done at a separate point in future. This move is needed as we are moving the {t,l,d}stats allocation/freeing to the core. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20231114004220.6495-2-daniel@iogearbox.net Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-20block/null_blk: Fix double blk_mq_start_request() warningChengming Zhou
When CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION is enabled, null_queue_rq() would return BLK_STS_RESOURCE or BLK_STS_DEV_RESOURCE for the request, which has been marked as MQ_RQ_IN_FLIGHT by blk_mq_start_request(). Then null_queue_rqs() put these requests in the rqlist, return back to the block layer core, which would try to queue them individually again, so the warning in blk_mq_start_request() triggered. Fix it by splitting the null_queue_rq() into two parts: the first is the preparation of request, the second is the handling of request. We put the blk_mq_start_request() after the preparation part, which may fail and return back to the block layer core. The throttling also belongs to the preparation part, so move it before blk_mq_start_request(). And change the return type of null_handle_cmd() to void, since it always return BLK_STS_OK now. Reported-by: <syzbot+fcc47ba2476570cbbeb0@syzkaller.appspotmail.com> Closes: https://lore.kernel.org/all/0000000000000e6aac06098aee0c@google.com/ Fixes: d78bfa1346ab ("block/null_blk: add queue_rqs() support") Suggested-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com> Link: https://lore.kernel.org/r/20231120032521.1012037-1-chengming.zhou@linux.dev Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-20nvmet-tcp: always initialize tls_handshake_tmo_workHannes Reinecke
The TLS handshake timeout work item should always be initialized to avoid a crash when cancelling the workqueue. Fixes: 675b453e0241 ("nvmet-tcp: enable TLS handshake upcall") Suggested-by: Maurizio Lombardi <mlombard@redhat.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Tested-by: Yi Zhang <yi.zhang@redhat.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-11-20nvmet: nul-terminate the NQNs passed in the connect commandChristoph Hellwig
The host and subsystem NQNs are passed in the connect command payload and interpreted as nul-terminated strings. Ensure they actually are nul-terminated before using them. Fixes: a07b4970f464 "nvmet: add a generic NVMe target") Reported-by: Alon Zahavi <zahavi.alon@gmail.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-11-20nvme: blank out authentication fabrics options if not configuredHannes Reinecke
If the config option NVME_HOST_AUTH is not selected we should not accept the corresponding fabrics options. This allows userspace to detect if NVMe authentication has been enabled for the kernel. Cc: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Fixes: f50fff73d620 ("nvme: implement In-Band authentication") Signed-off-by: Hannes Reinecke <hare@suse.de> Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-11-20nvme: catch errors from nvme_configure_metadata()Hannes Reinecke
nvme_configure_metadata() is issuing I/O, so we might incur an I/O error which will cause the connection to be reset. But in that case any further probing will race with reset and cause UAF errors. So return a status from nvme_configure_metadata() and abort probing if there was an I/O error. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-11-20nvme-tcp: only evaluate 'tls' option if TLS is selectedHannes Reinecke
We only need to evaluate the 'tls' connect option if TLS is enabled; otherwise we might be getting a link error. Fixes: 706add13676d ("nvme: keyring: fix conditional compilation") Reported-by: kernel test robot <yujie.liu@intel.com> Closes: https://lore.kernel.org/r/202311140426.0eHrTXBr-lkp@intel.com/ Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-11-20nvme-auth: set explanation code for failure2 msgsMark O'Donovan
Some error cases were not setting an auth-failure-reason-code-explanation. This means an AUTH_Failure2 message will be sent with an explanation value of 0 which is a reserved value. Signed-off-by: Mark O'Donovan <shiftee@posteo.net> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-11-20nvme-auth: unlock mutex in one place onlyMark O'Donovan
Signed-off-by: Mark O'Donovan <shiftee@posteo.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
2023-11-20nbd: fix null-ptr-dereference while accessing 'nbd->config'Li Nan
Memory reordering may occur in nbd_genl_connect(), causing config_refs to be set to 1 while nbd->config is still empty. Opening nbd at this time will cause null-ptr-dereference. T1 T2 nbd_open nbd_get_config_unlocked nbd_genl_connect nbd_alloc_and_init_config //memory reordered refcount_set(&nbd->config_refs, 1) // 2 nbd->config ->null point nbd->config = config // 1 Fix it by adding smp barrier to guarantee the execution sequence. Signed-off-by: Li Nan <linan122@huawei.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20231116162316.1740402-4-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-20nbd: factor out a helper to get nbd_config without holding 'config_lock'Li Nan
There are no functional changes, just to make code cleaner and prepare to fix null-ptr-dereference while accessing 'nbd->config'. Signed-off-by: Li Nan <linan122@huawei.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20231116162316.1740402-3-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-20nbd: fold nbd config initialization into nbd_alloc_config()Li Nan
There are no functional changes, make the code cleaner and prepare to fix null-ptr-dereference while accessing 'nbd->config'. Signed-off-by: Li Nan <linan122@huawei.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20231116162316.1740402-2-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-20drm/rockchip: rk3066_hdmi: Switch encoder hooks to atomicJohan Jonker
The rk3066_hdmi encoder still uses the non atomic variants of enable and disable. Convert to their atomic equivalents. In atomic mode there is no need to save the adjusted mode, so remove the mode_set function. Signed-off-by: Johan Jonker <jbx6244@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/034c3446-d619-f4c3-3aaa-ab51dc19d07f@gmail.com
2023-11-20drm/rockchip: rk3066_hdmi: Remove useless mode_fixupJohan Jonker
The mode_fixup implementation doesn't do anything, so we can simply remove it. Signed-off-by: Johan Jonker <jbx6244@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/5649ac03-db92-42a9-d86a-76dfa1af7c64@gmail.com
2023-11-20drm/rockchip: vop2: Add NV20 and NV30 supportJonas Karlman
Add support for the 10-bit 4:2:2 and 4:4:4 formats NV20 and NV30. These formats can be tested using modetest [1]: modetest -P <plane_id>@<crtc_id>:1920x1080@<format> e.g. on a ROCK 3 Model A (rk3568): modetest -P 43@67:1920x1080@NV20 -F tiles,tiles modetest -P 43@67:1920x1080@NV30 -F smpte,smpte [1] https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/329 Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Christopher Obbard <chris.obbard@collabora.com> Tested-by: Christopher Obbard <chris.obbard@collabora.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231025213248.2641962-1-jonas@kwiboo.se
2023-11-20Merge tag 'md-fixes-20231120' of ↵Jens Axboe
https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-6.7 Pull MD fix from Song. * tag 'md-fixes-20231120' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md: md: fix bi_status reporting in md_end_clone_io
2023-11-20ACPI: resource: Skip IRQ override on ASUS ExpertBook B1402CVAHans de Goede
Like various other ASUS ExpertBook-s, the ASUS ExpertBook B1402CVA has an ACPI DSDT table that describes IRQ 1 as ActiveLow while the kernel overrides it to EdgeHigh. This prevents the keyboard from working. To fix this issue, add this laptop to the skip_override_table so that the kernel does not override IRQ 1. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218114 Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-11-20dma-buf: Replace strlcpy() with strscpy()Kees Cook
strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated[1]. Additionally, it returns the size of the source string, not the resulting size of the destination string. In an effort to remove strlcpy() completely[2], replace strlcpy() here with strscpy(). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [1] Link: https://github.com/KSPP/linux/issues/89 [2] Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: Azeem Shaikh <azeemshaikh38@gmail.com> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: T.J. Mercier <tjmercier@google.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231116191409.work.634-kees@kernel.org Signed-off-by: Christian König <christian.koenig@amd.com>
2023-11-20ACPI: video: Use acpi_device_fix_up_power_children()Hans de Goede
Commit 89c290ea7589 ("ACPI: video: Put ACPI video and its child devices into D0 on boot") introduced calling acpi_device_fix_up_power_extended() on the video card for which the ACPI video bus is the companion device. This unnecessarily touches the power-state of the GPU itself, while the issue it tries to address only requires calling _PS0 on the child devices. Touching the power-state of the GPU itself is causing suspend / resume issues on e.g. a Lenovo ThinkPad W530. Instead use acpi_device_fix_up_power_children(), which only touches the child devices, to fix this. Fixes: 89c290ea7589 ("ACPI: video: Put ACPI video and its child devices into D0 on boot") Reported-by: Owen T. Heisler <writer@owenh.net> Closes: https://lore.kernel.org/regressions/9f36fb06-64c4-4264-aaeb-4e1289e764c4@owenh.net/ Closes: https://gitlab.freedesktop.org/drm/nouveau/-/issues/273 Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218124 Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Tested-by: Owen T. Heisler <writer@owenh.net> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: 6.6+ <stable@vger.kernel.org> # 6.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-11-20ACPI: PM: Add acpi_device_fix_up_power_children() functionHans de Goede
In some cases it is necessary to fix-up the power-state of an ACPI device's children without touching the ACPI device itself add a new acpi_device_fix_up_power_children() function for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: 6.6+ <stable@vger.kernel.org> # 6.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-11-20ACPI: processor_idle: use raw_safe_halt() in acpi_idle_play_dead()David Woodhouse
Xen HVM guests were observed taking triple-faults when attempting to online a previously offlined vCPU. Investigation showed that the fault was coming from a failing call to lockdep_assert_irqs_disabled(), in load_current_idt() which was too early in the CPU bringup to actually catch the exception and report the failure cleanly. This was a false positive, caused by acpi_idle_play_dead() setting the per-cpu hardirqs_enabled flag by calling safe_halt(). Switch it to use raw_safe_halt() instead, which doesn't do so. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: 6.6+ <stable@vger.kernel.org> # 6.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-11-20bcache: avoid NULL checking to c->root in run_cache_set()Coly Li
In run_cache_set() after c->root returned from bch_btree_node_get(), it is checked by IS_ERR_OR_NULL(). Indeed it is unncessary to check NULL because bch_btree_node_get() will not return NULL pointer to caller. This patch replaces IS_ERR_OR_NULL() by IS_ERR() for the above reason. Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20231120052503.6122-11-colyli@suse.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-20bcache: add code comments for bch_btree_node_get() and __bch_btree_node_alloc()Coly Li
This patch adds code comments to bch_btree_node_get() and __bch_btree_node_alloc() that NULL pointer will not be returned and it is unnecessary to check NULL pointer by the callers of these routines. Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20231120052503.6122-10-colyli@suse.de Signed-off-by: Jens Axboe <axboe@kernel.dk>