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2024-05-09Merge tag 'nvme-6.9-2024-05-09' of git://git.infradead.org/nvme into block-6.9Jens Axboe
Pull NVMe fixes from Keith: "nvme fixes for Linux 6.9 - nvme target fixes (Sagi, Dan, Maurizo) - new vendor quirk for broken MSI (Sean)" * tag 'nvme-6.9-2024-05-09' of git://git.infradead.org/nvme: nvmet-rdma: fix possible bad dereference when freeing rsps nvmet: prevent sprintf() overflow in nvmet_subsys_nsid_exists() nvmet: make nvmet_wq unbound nvmet-auth: return the error code to the nvmet_auth_ctrl_hash() callers nvme-pci: Add quirk for broken MSIs
2024-05-09Merge tag 'hwmon-for-v6.9-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - pmbus/ucd9000: Increase chip access delay to avoid random access errors - corsair-cpro: Protect kernel code against parallel hidraw access from userspace * tag 'hwmon-for-v6.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (pmbus/ucd9000) Increase delay from 250 to 500us hwmon: (corsair-cpro) Protect ccp->wait_input_report with a spinlock hwmon: (corsair-cpro) Use complete_all() instead of complete() in ccp_raw_event() hwmon: (corsair-cpro) Use a separate buffer for sending commands
2024-05-09cgroup: Add documentation for missing zswap memory.statUsama Arif
This includes zswpin, zswpout and zswpwb. Signed-off-by: Usama Arif <usamaarif642@gmail.com> Acked-by: Nhat Pham <nphamcs@gmail.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20240502185307.3942173-2-usamaarif642@gmail.com>
2024-05-09hwmon: (pmbus/ucd9000) Increase delay from 250 to 500usLakshmi Yadlapati
Following the failure observed with a delay of 250us, experiments were conducted with various delays. It was found that a delay of 350us effectively mitigated the issue. To provide a more optimal solution while still allowing a margin for stability, the delay is being adjusted to 500us. Signed-off-by: Lakshmi Yadlapati <lakshmiy@us.ibm.com> Link: https://lore.kernel.org/r/20240507194603.1305750-1-lakshmiy@us.ibm.com Fixes: 8d655e6523764 ("hwmon: (ucd90320) Add minimum delay between bus accesses") Reviewed-by: Eddie James <eajames@linux.ibm.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-05-09Merge tag 'net-6.9-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from bluetooth and IPsec. The bridge patch is actually a follow-up to a recent fix in the same area. We have a pending v6.8 AF_UNIX regression; it should be solved soon, but not in time for this PR. Current release - regressions: - eth: ks8851: Queue RX packets in IRQ handler instead of disabling BHs - net: bridge: fix corrupted ethernet header on multicast-to-unicast Current release - new code bugs: - xfrm: fix possible bad pointer derferencing in error path Previous releases - regressionis: - core: fix out-of-bounds access in ops_init - ipv6: - fix potential uninit-value access in __ip6_make_skb() - fib6_rules: avoid possible NULL dereference in fib6_rule_action() - tcp: use refcount_inc_not_zero() in tcp_twsk_unique(). - rtnetlink: correct nested IFLA_VF_VLAN_LIST attribute validation - rxrpc: fix congestion control algorithm - bluetooth: - l2cap: fix slab-use-after-free in l2cap_connect() - msft: fix slab-use-after-free in msft_do_close() - eth: hns3: fix kernel crash when devlink reload during initialization - eth: dsa: mv88e6xxx: add phylink_get_caps for the mv88e6320/21 family Previous releases - always broken: - xfrm: preserve vlan tags for transport mode software GRO - tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets - eth: hns3: keep using user config after hardware reset" * tag 'net-6.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits) net: dsa: mv88e6xxx: read cmode on mv88e6320/21 serdes only ports net: dsa: mv88e6xxx: add phylink_get_caps for the mv88e6320/21 family net: hns3: fix kernel crash when devlink reload during initialization net: hns3: fix port vlan filter not disabled issue net: hns3: use appropriate barrier function after setting a bit value net: hns3: release PTP resources if pf initialization failed net: hns3: change type of numa_node_mask as nodemask_t net: hns3: direct return when receive a unknown mailbox message net: hns3: using user configure after hardware reset net/smc: fix neighbour and rtable leak in smc_ib_find_route() ipv6: prevent NULL dereference in ip6_output() hsr: Simplify code for announcing HSR nodes timer setup ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action() dt-bindings: net: mediatek: remove wrongly added clocks and SerDes rxrpc: Only transmit one ACK per jumbo packet received rxrpc: Fix congestion control algorithm selftests: test_bridge_neigh_suppress.sh: Fix failures due to duplicate MAC ipv6: Fix potential uninit-value access in __ip6_make_skb() net: phy: marvell-88q2xxx: add support for Rev B1 and B2 appletalk: Improve handling of broadcast packets ...
2024-05-09blk-throttle: delay initialization until configurationYu Kuai
Other cgroup policy like bfq, iocost are lazy-initialized when they are configured for the first time for the device, but blk-throttle is initialized unconditionally from blkcg_init_disk(). Delay initialization of blk-throttle as well, to save some cpu and memory overhead if it's not configured. Noted that once it's initialized, it can't be destroyed until disk removal, even if it's disabled. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Link: https://lore.kernel.org/r/20240509121107.3195568-3-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-09blk-throttle: remove CONFIG_BLK_DEV_THROTTLING_LOWYu Kuai
One the one hand, it's marked EXPERIMENTAL since 2017, and looks like there are no users since then, and no testers and no developers, it's just not active at all. On the other hand, even if the config is disabled, there are still many fields in throtl_grp and throtl_data and many functions that are only used for throtl low. At last, currently blk-throtl is initialized during disk initialization, and destroyed during disk removal, and it exposes many functions to be called directly from block layer. Remove throtl low to make code much more cleaner and follow up work much easier. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20240509121107.3195568-2-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linuxLinus Torvalds
Pull ARM fix from Russell King: - clear stale KASan stack poison when a CPU resumes * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9381/1: kasan: clear stale stack poison
2024-05-09regulator: core: fix debugfs creation regressionJohan Hovold
regulator_get() may sometimes be called more than once for the same consumer device, something which before commit dbe954d8f163 ("regulator: core: Avoid debugfs: Directory ... already present! error") resulted in errors being logged. A couple of recent commits broke the handling of such cases so that attributes are now erroneously created in the debugfs root directory the second time a regulator is requested and the log is filled with errors like: debugfs: File 'uA_load' in directory '/' already present! debugfs: File 'min_uV' in directory '/' already present! debugfs: File 'max_uV' in directory '/' already present! debugfs: File 'constraint_flags' in directory '/' already present! on any further calls. Fixes: 2715bb11cfff ("regulator: core: Fix more error checking for debugfs_create_dir()") Fixes: 08880713ceec ("regulator: core: Streamline debugfs operations") Cc: stable@vger.kernel.org Cc: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20240509133304.8883-1-johan+linaro@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-05-09Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull dentry leak fix from Al Viro: "Dentry leak fix in the qibfs driver that I forgot to send a pull request for ;-/ My apologies - it actually sat in vfs.git#fixes for more than two months..." * tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: qibfs: fix dentry leak
2024-05-09docs: trusted-encrypted: add DCP as new trust sourceDavid Gstir
Update the documentation for trusted and encrypted KEYS with DCP as new trust source: - Describe security properties of DCP trust source - Describe key usage - Document blob format Co-developed-by: Richard Weinberger <richard@nod.at> Signed-off-by: Richard Weinberger <richard@nod.at> Co-developed-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Gstir <david@sigma-star.at> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-05-09docs: document DCP-backed trusted keys kernel paramsDavid Gstir
Document the kernel parameters trusted.dcp_use_otp_key and trusted.dcp_skip_zk_test for DCP-backed trusted keys. Co-developed-by: Richard Weinberger <richard@nod.at> Signed-off-by: Richard Weinberger <richard@nod.at> Co-developed-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Gstir <david@sigma-star.at> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-05-09MAINTAINERS: add entry for DCP-based trusted keysDavid Gstir
This covers trusted keys backed by NXP's DCP (Data Co-Processor) chip found in smaller i.MX SoCs. Signed-off-by: David Gstir <david@sigma-star.at> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-05-09KEYS: trusted: Introduce NXP DCP-backed trusted keysDavid Gstir
DCP (Data Co-Processor) is the little brother of NXP's CAAM IP. Beside of accelerated crypto operations, it also offers support for hardware-bound keys. Using this feature it is possible to implement a blob mechanism similar to what CAAM offers. Unlike on CAAM, constructing and parsing the blob has to happen in software (i.e. the kernel). The software-based blob format used by DCP trusted keys encrypts the payload using AES-128-GCM with a freshly generated random key and nonce. The random key itself is AES-128-ECB encrypted using the DCP unique or OTP key. The DCP trusted key blob format is: /* * struct dcp_blob_fmt - DCP BLOB format. * * @fmt_version: Format version, currently being %1 * @blob_key: Random AES 128 key which is used to encrypt @payload, * @blob_key itself is encrypted with OTP or UNIQUE device key in * AES-128-ECB mode by DCP. * @nonce: Random nonce used for @payload encryption. * @payload_len: Length of the plain text @payload. * @payload: The payload itself, encrypted using AES-128-GCM and @blob_key, * GCM auth tag of size AES_BLOCK_SIZE is attached at the end of it. * * The total size of a DCP BLOB is sizeof(struct dcp_blob_fmt) + @payload_len + * AES_BLOCK_SIZE. */ struct dcp_blob_fmt { __u8 fmt_version; __u8 blob_key[AES_KEYSIZE_128]; __u8 nonce[AES_KEYSIZE_128]; __le32 payload_len; __u8 payload[]; } __packed; By default the unique key is used. It is also possible to use the OTP key. While the unique key should be unique it is not documented how this key is derived. Therefore selection the OTP key is supported as well via the use_otp_key module parameter. Co-developed-by: Richard Weinberger <richard@nod.at> Signed-off-by: Richard Weinberger <richard@nod.at> Co-developed-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Gstir <david@sigma-star.at> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-05-09KEYS: trusted: improve scalability of trust source configDavid Gstir
Enabling trusted keys requires at least one trust source implementation (currently TPM, TEE or CAAM) to be enabled. Currently, this is done by checking each trust source's config option individually. This does not scale when more trust sources like the one for DCP are added, because the condition will get long and hard to read. Add config HAVE_TRUSTED_KEYS which is set to true by each trust source once its enabled and adapt the check for having at least one active trust source to use this option. Whenever a new trust source is added, it now needs to select HAVE_TRUSTED_KEYS. Signed-off-by: David Gstir <david@sigma-star.at> Tested-by: Jarkko Sakkinen <jarkko@kernel.org> # for TRUSTED_KEYS_TPM Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-05-09crypto: mxs-dcp: Add support for hardware-bound keysDavid Gstir
DCP (Data Co-Processor) is able to derive private keys for a fused random seed, which can be referenced by handle but not accessed by the CPU. Similarly, DCP is able to store arbitrary keys in four dedicated key slots located in its secure memory area (internal SRAM). These keys can be used to perform AES encryption. Expose these derived keys and key slots through the crypto API via their handle. The main purpose is to add DCP-backed trusted keys. Other use cases are possible too (see similar existing paes implementations), but these should carefully be evaluated as e.g. enabling AF_ALG will give userspace full access to use keys. In scenarios with untrustworthy userspace, this will enable en-/decryption oracles. Co-developed-by: Richard Weinberger <richard@nod.at> Signed-off-by: Richard Weinberger <richard@nod.at> Co-developed-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: David Gstir <david@sigma-star.at> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-05-09drm/xe: Use ordered WQ for G2H handlerMatthew Brost
System work queues are shared, use a dedicated work queue for G2H processing to avoid G2H processing getting block behind system tasks. Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Cc: <stable@vger.kernel.org> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240506034758.3697397-1-matthew.brost@intel.com (cherry picked from commit 50aec9665e0babd62b9eee4e613d9a1ef8d2b7de) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-05-09drm/xe/guc: Check error code when initializing the CT mutexDaniele Ceraolo Spurio
The initialization via drmm_mutex_init can fail, so we need to check the return code and escalate the failure. The mutex initialization has been moved after all the other init steps that can't fail, so we're always guaranteed to have those done and don't have to check in the cleanup code. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240321195512.274210-1-daniele.ceraolospurio@intel.com (cherry picked from commit b4abeb5545bb3ddcdda3c19067680ad0b2259be4) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-05-09drm/xe/ads: Use flexible-arrayLucas De Marchi
Zero-length arrays are deprecated and flexible arrays should be used instead: https://www.kernel.org/doc/html/v6.9-rc7/process/deprecated.html#zero-length-and-one-element-arrays Reported-by: kernel test robot <lkp@intel.com> Reported-by: Julia Lawall <julia.lawall@inria.fr> Closes: https://lore.kernel.org/r/202405051824.AmjAI5Pg-lkp@intel.com/ Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240506141917.205714-1-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> (cherry picked from commit ee7284230644e21fef0e38fc5bf8f907b6bb7f7c) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-05-09gpiolib: cdev: Fix use after free in lineinfo_changed_notifyZhongqiu Han
The use-after-free issue occurs as follows: when the GPIO chip device file is being closed by invoking gpio_chrdev_release(), watched_lines is freed by bitmap_free(), but the unregistration of lineinfo_changed_nb notifier chain failed due to waiting write rwsem. Additionally, one of the GPIO chip's lines is also in the release process and holds the notifier chain's read rwsem. Consequently, a race condition leads to the use-after-free of watched_lines. Here is the typical stack when issue happened: [free] gpio_chrdev_release() --> bitmap_free(cdev->watched_lines) <-- freed --> blocking_notifier_chain_unregister() --> down_write(&nh->rwsem) <-- waiting rwsem --> __down_write_common() --> rwsem_down_write_slowpath() --> schedule_preempt_disabled() --> schedule() [use] st54spi_gpio_dev_release() --> gpio_free() --> gpiod_free() --> gpiod_free_commit() --> gpiod_line_state_notify() --> blocking_notifier_call_chain() --> down_read(&nh->rwsem); <-- held rwsem --> notifier_call_chain() --> lineinfo_changed_notify() --> test_bit(xxxx, cdev->watched_lines) <-- use after free The side effect of the use-after-free issue is that a GPIO line event is being generated for userspace where it shouldn't. However, since the chrdev is being closed, userspace won't have the chance to read that event anyway. To fix the issue, call the bitmap_free() function after the unregistration of lineinfo_changed_nb notifier chain. Fixes: 51c1064e82e7 ("gpiolib: add new ioctl() for monitoring changes in line info") Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com> Link: https://lore.kernel.org/r/20240505141156.2944912-1-quic_zhonhan@quicinc.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-05-09block: fix that util can be greater than 100%Yu Kuai
util means the percentage that disk has IO, and theoretically it should not be greater than 100%. However, there is a gap for rq-based disk: io_ticks will be updated when rq is allocated, however, before such rq dispatch to driver, it will not be account as inflight from blk_mq_start_request() hence diskstats_show()/part_stat_show() will not update io_ticks. For example: 1) at t0, issue a new IO, rq is allocated, and blk_account_io_start() update io_ticks; 2) something is wrong with drivers, and the rq can't be dispatched; 3) at t0 + 10s, drivers recovers and rq is dispatched and done, io_ticks is updated; Then if user is using "iostat 1" to monitor "util", between t0 - t0+9s, util will be zero, and between t0+9s - t0+10s, util will be 1000%. Fix this problem by updating io_ticks from diskstats_show() and part_stat_show() if there are rq allocated. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Link: https://lore.kernel.org/r/20240509123717.3223892-3-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-09block: support to account io_ticks preciselyYu Kuai
Currently, io_ticks is accounted based on sampling, specifically update_io_ticks() will always account io_ticks by 1 jiffies from bdev_start_io_acct()/blk_account_io_start(), and the result can be inaccurate, for example(HZ is 250): Test script: fio -filename=/dev/sda -bs=4k -rw=write -direct=1 -name=test -thinktime=4ms Test result: util is about 90%, while the disk is really idle. This behaviour is introduced by commit 5b18b5a73760 ("block: delete part_round_stats and switch to less precise counting"), however, there was a key point that is missed that this patch also improve performance a lot: Before the commit: part_round_stats: if (part->stamp != now) stats |= 1; part_in_flight() -> there can be lots of task here in 1 jiffies. part_round_stats_single() __part_stat_add() part->stamp = now; After the commit: update_io_ticks: stamp = part->bd_stamp; if (time_after(now, stamp)) if (try_cmpxchg()) __part_stat_add() -> only one task can reach here in 1 jiffies. Hence in order to account io_ticks precisely, we only need to know if there are IO inflight at most once in one jiffies. Noted that for rq-based device, iterating tags should not be used here because 'tags->lock' is grabbed in blk_mq_find_and_get_req(), hence part_stat_lock_inc/dec() and part_in_flight() is used to trace inflight. The additional overhead is quite little: - per cpu add/dec for each IO for rq-based device; - per cpu sum for each jiffies; And it's verified by null-blk that there are no performance degration under heavy IO pressure. Fixes: 5b18b5a73760 ("block: delete part_round_stats and switch to less precise counting") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Link: https://lore.kernel.org/r/20240509123717.3223892-2-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-09block: add plug while submitting IOYu Kuai
So that if caller didn't use plug, for example, __blkdev_direct_IO_simple() and __blkdev_direct_IO_async(), block layer can still benefit from caching nsec time in the plug. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Link: https://lore.kernel.org/r/20240509123825.3225207-1-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-09keys: Fix overwrite of key expiration on instantiationSilvio Gissi
The expiry time of a key is unconditionally overwritten during instantiation, defaulting to turn it permanent. This causes a problem for DNS resolution as the expiration set by user-space is overwritten to TIME64_MAX, disabling further DNS updates. Fix this by restoring the condition that key_set_expiry is only called when the pre-parser sets a specific expiry. Fixes: 39299bdd2546 ("keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiry") Signed-off-by: Silvio Gissi <sifonsec@amazon.com> cc: David Howells <dhowells@redhat.com> cc: Hazem Mohamed Abuelfotoh <abuehaze@amazon.com> cc: linux-afs@lists.infradead.org cc: linux-cifs@vger.kernel.org cc: keyrings@vger.kernel.org cc: netdev@vger.kernel.org cc: stable@vger.kernel.org Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-05-09keys: update key quotas in key_put()Luis Henriques
Delaying key quotas update when key's refcount reaches 0 in key_put() has been causing some issues in fscrypt testing, specifically in fstest generic/581. This commit fixes this test flakiness by dealing with the quotas immediately, and leaving all the other clean-ups to the key garbage collector. This is done by moving the updates to the qnkeys and qnbytes fields in struct key_user from key_gc_unused_keys() into key_put(). Unfortunately, this also means that we need to switch to the irq-version of the spinlock that protects these fields and use spin_lock_{irqsave,irqrestore} in all the code that touches these fields. Signed-off-by: Luis Henriques <lhenriques@suse.de> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@kernel.org>
2024-05-09gpiolib: use a single SRCU struct for all GPIO descriptorsBartosz Golaszewski
We used a per-descriptor SRCU struct in order to not impose a wait with synchronize_srcu() for descriptor X on read-only operations of descriptor Y. Now that we no longer call synchronize_srcu() on descriptor label change but only when releasing descriptor resources, we can use a single SRCU structure for all GPIO descriptors in a given chip. Suggested-by: "Paul E. McKenney" <paulmck@kernel.org> Acked-by: "Paul E. McKenney" <paulmck@kernel.org> Link: https://lore.kernel.org/r/20240507172414.28513-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-05-09file: add fd_raw cleanup classChristian Brauner
So we can also use CLASS(fd_raw, f)(fd) for codepaths where we allow FMODE_PATH aka O_PATH file descriptors to be used. Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-05-09net: dsa: mv88e6xxx: read cmode on mv88e6320/21 serdes only portsSteffen Bätz
On the mv88e6320 and 6321 switch family, port 0/1 are serdes only ports. Modified the mv88e6352_get_port4_serdes_cmode function to pass a port number since the register set of the 6352 is equal on the 6320/21. Signed-off-by: Steffen Bätz <steffen@innosonix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20240508072944.54880-3-steffen@innosonix.de Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: dsa: mv88e6xxx: add phylink_get_caps for the mv88e6320/21 familySteffen Bätz
As of commit de5c9bf40c45 ("net: phylink: require supported_interfaces to be filled") Marvell 88e6320/21 switches fail to be probed: ... mv88e6085 30be0000.ethernet-1:00: phylink: error: empty supported_interfaces error creating PHYLINK: -22 ... The problem stems from the use of mv88e6185_phylink_get_caps() to get the device capabilities. Since there are serdes only ports 0/1 included, create a new dedicated phylink_get_caps for the 6320 and 6321 to properly support their set of capabilities. Fixes: de5c9bf40c45 ("net: phylink: require supported_interfaces to be filled") Signed-off-by: Steffen Bätz <steffen@innosonix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20240508072944.54880-2-steffen@innosonix.de Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09Merge branch 'there-are-some-bugfix-for-the-hns3-ethernet-driver'Paolo Abeni
Jijie Shao says: ==================== There are some bugfix for the HNS3 ethernet driver ==================== Link: https://lore.kernel.org/r/20240507134224.2646246-1-shaojijie@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: hns3: fix kernel crash when devlink reload during initializationYonglong Liu
The devlink reload process will access the hardware resources, but the register operation is done before the hardware is initialized. So, processing the devlink reload during initialization may lead to kernel crash. This patch fixes this by registering the devlink after hardware initialization. Fixes: cd6242991d2e ("net: hns3: add support for registering devlink for VF") Fixes: 93305b77ffcb ("net: hns3: fix kernel crash when devlink reload during pf initialization") Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: hns3: fix port vlan filter not disabled issueYonglong Liu
According to hardware limitation, for device support modify VLAN filter state but not support bypass port VLAN filter, it should always disable the port VLAN filter. but the driver enables port VLAN filter when initializing, if there is no VLAN(except VLAN 0) id added, the driver will disable it in service task. In most time, it works fine. But there is a time window before the service task shceduled and net device being registered. So if user adds VLAN at this time, the driver will not update the VLAN filter state, and the port VLAN filter remains enabled. To fix the problem, if support modify VLAN filter state but not support bypass port VLAN filter, set the port vlan filter to "off". Fixes: 184cd221a863 ("net: hns3: disable port VLAN filter when support function level VLAN filter control") Fixes: 2ba306627f59 ("net: hns3: add support for modify VLAN filter state") Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: hns3: use appropriate barrier function after setting a bit valuePeiyang Wang
There is a memory barrier in followed case. When set the port down, hclgevf_set_timmer will set DOWN in state. Meanwhile, the service task has different behaviour based on whether the state is DOWN. Thus, to make sure service task see DOWN, use smp_mb__after_atomic after calling set_bit(). CPU0 CPU1 ========================== =================================== hclgevf_set_timer_task() hclgevf_periodic_service_task() set_bit(DOWN,state) test_bit(DOWN,state) pf also has this issue. Fixes: ff200099d271 ("net: hns3: remove unnecessary work in hclgevf_main") Fixes: 1c6dfe6fc6f7 ("net: hns3: remove mailbox and reset work in hclge_main") Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: hns3: release PTP resources if pf initialization failedPeiyang Wang
During the PF initialization process, hclge_update_port_info may return an error code for some reason. At this point, the ptp initialization has been completed. To void memory leaks, the resources that are applied by ptp should be released. Therefore, when hclge_update_port_info returns an error code, hclge_ptp_uninit is called to release the corresponding resources. Fixes: eaf83ae59e18 ("net: hns3: add querying fec ability from firmware") Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Hariprasad Kelam <hkelam@marvell.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: hns3: change type of numa_node_mask as nodemask_tPeiyang Wang
It provides nodemask_t to describe the numa node mask in kernel. To improve transportability, change the type of numa_node_mask as nodemask_t. Fixes: 38caee9d3ee8 ("net: hns3: Add support of the HNAE3 framework") Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: hns3: direct return when receive a unknown mailbox messageJian Shen
Currently, the driver didn't return when receive a unknown mailbox message, and continue checking whether need to generate a response. It's unnecessary and may be incorrect. Fixes: bb5790b71bad ("net: hns3: refactor mailbox response scheme between PF and VF") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net: hns3: using user configure after hardware resetPeiyang Wang
When a reset occurring, it's supposed to recover user's configuration. Currently, the port info(speed, duplex and autoneg) is stored in hclge_mac and will be scheduled updated. Consider the case that reset was happened consecutively. During the first reset, the port info is configured with a temporary value cause the PHY is reset and looking for best link config. Second reset start and use pervious configuration which is not the user's. The specific process is as follows: +------+ +----+ +----+ | USER | | PF | | HW | +---+--+ +-+--+ +-+--+ | ethtool --reset | | +------------------->| reset command | | ethtool --reset +-------------------->| +------------------->| +---+ | +---+ | | | | |reset currently | | HW RESET | | |and wait to do | | | |<--+ | | | | send pervious cfg |<--+ | | (1000M FULL AN_ON) | | +-------------------->| | | read cfg(time task) | | | (10M HALF AN_OFF) +---+ | |<--------------------+ | cfg take effect | | reset command |<--+ | +-------------------->| | | +---+ | | send pervious cfg | | HW RESET | | (10M HALF AN_OFF) |<--+ | +-------------------->| | | read cfg(time task) | | | (10M HALF AN_OFF) +---+ | |<--------------------+ | cfg take effect | | | | | | read cfg(time task) |<--+ | | (10M HALF AN_OFF) | | |<--------------------+ | | | v v v To avoid aboved situation, this patch introduced req_speed, req_duplex, req_autoneg to store user's configuration and it only be used after hardware reset and to recover user's configuration Fixes: f5f2b3e4dcc0 ("net: hns3: add support for imp-controlled PHYs") Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09net/smc: fix neighbour and rtable leak in smc_ib_find_route()Wen Gu
In smc_ib_find_route(), the neighbour found by neigh_lookup() and rtable resolved by ip_route_output_flow() are not released or put before return. It may cause the refcount leak, so fix it. Link: https://lore.kernel.org/r/20240506015439.108739-1-guwen@linux.alibaba.com Fixes: e5c4744cfb59 ("net/smc: add SMC-Rv2 connection establishment") Signed-off-by: Wen Gu <guwen@linux.alibaba.com> Link: https://lore.kernel.org/r/20240507125331.2808-1-guwen@linux.alibaba.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-09spi: microchip-core-qspi: fix setting spi bus clock rateConor Dooley
Before ORing the new clock rate with the control register value read from the hardware, the existing clock rate needs to be masked off as otherwise the existing value will interfere with the new one. CC: stable@vger.kernel.org Fixes: 8596124c4c1b ("spi: microchip-core-qspi: Add support for microchip fpga qspi controllers") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org> Link: https://lore.kernel.org/r/20240508-fox-unpiloted-b97e1535627b@spud Signed-off-by: Mark Brown <broonie@kernel.org>
2024-05-08ipv6: prevent NULL dereference in ip6_output()Eric Dumazet
According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 778d80be5269 ("ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.") Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com> Link: https://lore.kernel.org/r/20240507161842.773961-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-08hsr: Simplify code for announcing HSR nodes timer setupLukasz Majewski
Up till now the code to start HSR announce timer, which triggers sending supervisory frames, was assuming that hsr_netdev_notify() would be called at least twice for hsrX interface. This was required to have different values for old and current values of network device's operstate. This is problematic for a case where hsrX interface is already in the operational state when hsr_netdev_notify() is called, so timer is not configured to trigger and as a result the hsrX is not sending supervisory frames to HSR ring. This error has been discovered when hsr_ping.sh script was run. To be more specific - for the hsr1 and hsr2 the hsr_netdev_notify() was called at least twice with different IF_OPER_{LOWERDOWN|DOWN|UP} states assigned in hsr_check_carrier_and_operstate(hsr). As a result there was no issue with sending supervisory frames. However, with hsr3, the notify function was called only once with operstate set to IF_OPER_UP and timer responsible for triggering supervisory frames was not fired. The solution is to use netif_oper_up() and netif_running() helper functions to assess if network hsrX device is up. Only then, when the timer is not already pending, it is started. Otherwise it is deactivated. Fixes: f421436a591d ("net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)") Signed-off-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240507111214.3519800-1-lukma@denx.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-08ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()Eric Dumazet
syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use. Indeed ip6_dst_idev() can return NULL, and must always be checked. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 5e5f3f0f8013 ("[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240507163145.835254-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-08dt-bindings: net: mediatek: remove wrongly added clocks and SerDesDaniel Golle
Several clocks as well as both sgmiisys phandles were added by mistake to the Ethernet bindings for MT7988. Also, the total number of clocks didn't match with the actual number of items listed. This happened because the vendor driver which served as a reference uses a high number of syscon phandles to access various parts of the SoC which wasn't acceptable upstream. Hence several parts which have never previously been supported (such SerDes PHY and USXGMII PCS) are going to be implemented by separate drivers. As a result the device tree will look much more sane. Quickly align the bindings with the upcoming reality of the drivers actually adding support for the remaining Ethernet-related features of the MT7988 SoC. Fixes: c94a9aabec36 ("dt-bindings: net: mediatek,net: add mt7988-eth binding") Signed-off-by: Daniel Golle <daniel@makrotopia.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/1569290b21cc787a424469ed74456a7e976b102d.1715084326.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-08bcache: fix variable length array abuse in btree_iterMatthew Mirvish
btree_iter is used in two ways: either allocated on the stack with a fixed size MAX_BSETS, or from a mempool with a dynamic size based on the specific cache set. Previously, the struct had a fixed-length array of size MAX_BSETS which was indexed out-of-bounds for the dynamically-sized iterators, which causes UBSAN to complain. This patch uses the same approach as in bcachefs's sort_iter and splits the iterator into a btree_iter with a flexible array member and a btree_iter_stack which embeds a btree_iter as well as a fixed-length data array. Cc: stable@vger.kernel.org Closes: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2039368 Signed-off-by: Matthew Mirvish <matthew@mm12.xyz> Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20240509011117.2697-3-colyli@suse.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-08bcache: Remove usage of the deprecated ida_simple_xx() APIChristophe JAILLET
ida_alloc() and ida_free() should be preferred to the deprecated ida_simple_get() and ida_simple_remove(). Note that the upper limit of ida_simple_get() is exclusive, but the one of ida_alloc_max() is inclusive. So a -1 has been added when needed. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20240509011117.2697-2-colyli@suse.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-08Revert "drm/amdkfd: Add partition id field to location_id"Lijo Lazar
This reverts commit c37ce764cd492f044dcdbb39616298f02b0dbc7f. RCCL library is currently not treating spatial partitions differently, hence this change is causing issues. Revert temporarily till RCCL implementation is ready for spatial partitions. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Jonathan Kim <jonathan.kim@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08dm/amd/pm: Fix problems with reboot/shutdown for some SMU 13.0.4/13.0.11 usersMario Limonciello
Limit the workaround introduced by commit 31729e8c21ec ("drm/amd/pm: fixes a random hang in S4 for SMU v13.0.4/11") to only run in the s4 path. Cc: Tim Huang <Tim.Huang@amd.com> Fixes: 31729e8c21ec ("drm/amd/pm: fixes a random hang in S4 for SMU v13.0.4/11") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3351 Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08seccomp: Constify sysctl subhelpersKees Cook
The read_actions_logged() and write_actions_logged() helpers called by the sysctl proc handler seccomp_actions_logged_handler() are already expecting their sysctl table argument to be read-only. Actually mark the argument as const in preparation[1] for global constification of the sysctl tables. Suggested-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/lkml/20240423-sysctl-const-handler-v3-11-e0beccb836e2@weissschuh.net/ [1] Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20240508171337.work.861-kees@kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
2024-05-08drm/amd/display: MST DSC check for older devicesAgustin Gutierrez
[Why] Some older MST hubs do not report DPCD registers according to specification. [How] This change re-applies commit c53655545141 ("drm/amd/display: dsc mst re-compute pbn for changes on hub"). With an additional check for these older MST devices. Reviewed-by: Swapnil Patel <swapnil.patel@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Agustin Gutierrez <agustin.gutierrez@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08drm/amd/display: Fix idle optimization checks for multi-display and dual eDPNicholas Kazlauskas
[Why] Idle optimizations are blocked if there's more than one eDP connector on the board - blocking S0i3 and IPS2 for static screen. [How] Fix the checks to correctly detect number of active eDP. Also restrict the eDP support to panels that have correct feature support. Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>