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2023-06-19NFS: Add sysfs links to sunrpc clients for nfs_clientsBenjamin Coddington
For the general and state management nfs_client under each mount, create symlinks to their respective rpc_client sysfs entries. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19NFS: add superblock sysfs entriesBenjamin Coddington
Create a sysfs directory for each mount that corresponds to the mount's nfs_server struct. As the mount is being constructed, use the name "server-n", but rename it to the "MAJOR:MINOR" of the mount after assigning a device_id. The rename approach allows us to populate the mount's directory with links to the various rpc_client objects during the mount's construction. The naming convention (MAJOR:MINOR) can be used to reference a particular NFS mount's sysfs tree. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv().Kuniyuki Iwashima
As Eric Dumazet pointed out [0], ipv6_rthdr_rcv() pulls these data - Segment Routing Header : 8 - Hdr Ext Len : skb_transport_header(skb)[1] << 3 needed by ipv6_rpl_srh_rcv(). We can remove pskb_may_pull() and replace pskb_pull() with skb_pull() in ipv6_rpl_srh_rcv(). Link: https://lore.kernel.org/netdev/CANn89iLboLwLrHXeHJucAqBkEL_S0rJFog68t7wwwXO-aNf5Mg@mail.gmail.com/ [0] Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-19btrfs: tracepoints: also show actual number of the outstanding extentsNaohiro Aota
The btrfs_inode_mod_outstanding_extents trace event only shows the modified number to the number of outstanding extents. It would be helpful if we can see the resulting extent number as well. Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2023-06-19NFS: Have struct nfs_client carry a TLS policy fieldChuck Lever
The new field is used to match struct nfs_clients that have the same TLS policy setting. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19SUNRPC: Add a TCP-with-TLS RPC transport classChuck Lever
Use the new TLS handshake API to enable the SunRPC client code to request a TLS handshake. This implements support for RFC 9289, only on TCP sockets. Upper layers such as NFS use RPC-with-TLS to protect in-transit traffic. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19SUNRPC: Ignore data_ready callbacks during TLS handshakesChuck Lever
The RPC header parser doesn't recognize TLS handshake traffic, so it will close the connection prematurely with an error. To avoid that, shunt the transport's data_ready callback when there is a TLS handshake in progress. The XPRT_SOCK_IGNORE_RECV flag will be toggled by code added in a subsequent patch. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19SUNRPC: Add RPC client support for the RPC_AUTH_TLS auth flavorChuck Lever
The new authentication flavor is used only to discover peer support for RPC-over-TLS. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19ovl: enable fsnotify events on underlying real filesAmir Goldstein
Overlayfs creates the real underlying files with fake f_path, whose f_inode is on the underlying fs and f_path on overlayfs. Those real files were open with FMODE_NONOTIFY, because fsnotify code was not prapared to handle fsnotify hooks on files with fake path correctly and fanotify would report unexpected event->fd with fake overlayfs path, when the underlying fs was being watched. Teach fsnotify to handle events on the real files, and do not set real files to FMODE_NONOTIFY to allow operations on real file (e.g. open, access, modify, close) to generate async and permission events. Because fsnotify does not have notifications on address space operations, we do not need to worry about ->vm_file not reporting events to a watched overlayfs when users are accessing a mapped overlayfs file. Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Message-Id: <20230615112229.2143178-6-amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-06-19SUNRPC: Trace the rpc_create_argsChuck Lever
Pass the upper layer's rpc_create_args to the rpc_clnt_new() tracepoint so additional parts of the upper layer's request can be recorded. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19SUNRPC: Plumb an API for setting transport layer securityChuck Lever
Add an initial set of policies along with fields for upper layers to pass the requested policy down to the transport layer. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19fs: use backing_file container for internal files with "fake" f_pathAmir Goldstein
Overlayfs uses open_with_fake_path() to allocate internal kernel files, with a "fake" path - whose f_path is not on the same fs as f_inode. Allocate a container struct backing_file for those internal files, that is used to hold the "fake" ovl path along with the real path. backing_file_real_path() can be used to access the stored real path. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Message-Id: <20230615112229.2143178-5-amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-06-19fs: use a helper for opening kernel internal filesAmir Goldstein
cachefiles uses kernel_open_tmpfile() to open kernel internal tmpfile without accounting for nr_files. cachefiles uses open_with_fake_path() for the same reason without the need for a fake path. Fork open_with_fake_path() to kernel_file_open() which only does the noaccount part and use it in cachefiles. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Message-Id: <20230615112229.2143178-3-amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-06-19NFSv4.2: SETXATTR should update ctimeAnna Schumaker
Otherwise, `stat` will report a stale value to users. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-19fs: rename {vfs,kernel}_tmpfile_open()Amir Goldstein
Overlayfs and cachefiles use vfs_open_tmpfile() to open a tmpfile without accounting for nr_files. Rename this helper to kernel_tmpfile_open() to better reflect this helper is used for kernel internal users. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Message-Id: <20230615112229.2143178-2-amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-06-19regulator: pca9450: Fix LDO3OUT and LDO4OUT MASKTeresa Remmet
L3_OUT and L4_OUT Bit fields range from Bit 0:4 and thus the mask should be 0x1F instead of 0x0F. Fixes: 0935ff5f1f0a ("regulator: pca9450: add pca9450 pmic driver") Signed-off-by: Teresa Remmet <t.remmet@phytec.de> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> Link: https://lore.kernel.org/r/20230614125240.3946519-1-t.remmet@phytec.de Signed-off-by: Mark Brown <broonie@kernel.org>
2023-06-19gpiolib: Drop unused domain_ops memeber of GPIO IRQ chipAndy Shevchenko
It seems there is no driver that requires custom IRQ chip domain options. Drop the member and respective code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-19gpiolib: Fix irq_domain resource tracking for gpiochip_irqchip_add_domain()Michael Walle
Up until commit 6a45b0e2589f ("gpiolib: Introduce gpiochip_irqchip_add_domain()") all irq_domains were allocated by gpiolib itself and thus gpiolib also takes care of freeing it. With gpiochip_irqchip_add_domain() a user of gpiolib can associate an irq_domain with the gpio_chip. This irq_domain is not managed by gpiolib and therefore must not be freed by gpiolib. Fixes: 6a45b0e2589f ("gpiolib: Introduce gpiochip_irqchip_add_domain()") Reported-by: Jiawen Wu <jiawenwu@trustnetic.com> Signed-off-by: Michael Walle <mwalle@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy@kernel.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-19xsk: Remove unused inline function xsk_buff_discard()YueHaibing
commit f2f167583601 ("xsk: Remove unused xsk_buff_discard") left behind this, remove it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Simon Horman <simon.horman@corigine.com> Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/bpf/20230616062800.30780-1-yuehaibing@huawei.com
2023-06-19btrfs: add a btrfs_finish_ordered_extent helperChristoph Hellwig
Add a helper to complete an ordered_extent without first doing a lookup. The tracepoint cannot use the ordered_extent class as we also want to print the range. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2023-06-19ASoC: tas2781: Add Header file for tas2781 driverShenghao Ding
Create Header file for tas2781 driver. Signed-off-by: Shenghao Ding <13916275206@139.com> Link: https://lore.kernel.org/r/20230618122819.23143-1-13916275206@139.com Signed-off-by: Mark Brown <broonie@kernel.org>
2023-06-19wifi: mac80211: check EHT basic MCS/NSS setJohannes Berg
Check that all the NSS in the EHT basic MCS/NSS set are actually supported, otherwise disable EHT for the connection. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214436.737827c906c9.I0c11a3cd46ab4dcb774c11a5bbc30aecfb6fce11@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: update multi-link element STA reconfigJohannes Berg
Update the MLE STA reconfig sub-type to 802.11be D3.0 format, which includes the operation update field. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214436.2e1383b31f07.I8055a111c8fcf22e833e60f5587a4d8d21caca5b@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: ieee80211: reorder presence checks in MLE per-STA profileJohannes Berg
In ieee80211_mle_sta_prof_size_ok(), the presence checks aren't ordered by field order, so that's a bit confusing. Reorder them. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214436.fdbf17320a37.I517cf27fdc3f6e5d6a2615182da47ba4bdf14039@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: mac80211: Support link removal using Reconfiguration ML elementIlan Peer
Add support for handling link removal indicated by the Reconfiguration Multi-Link element. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214436.d8a046dc0c1a.I4dcf794da2a2d9f4e5f63a4b32158075d27c0660@changeid [use cfg80211_links_removed() API instead] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: cfg80211/nl80211: Add support to indicate STA MLD setup links removalVeerendranath Jakkam
STA MLD setup links may get removed if AP MLD remove the corresponding affiliated APs with Multi-Link reconfiguration as described in P802.11be_D3.0, section 35.3.6.2.2 Removing affiliated APs. Currently, there is no support to notify such operation to cfg80211 and userspace. Add support for the drivers to indicate STA MLD setup links removal to cfg80211 and notify the same to userspace. Upon receiving such indication from the driver, clear the MLO links information of the removed links in the WDEV. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/20230317142153.237900-1-quic_vjakkam@quicinc.com [rename function and attribute, fix kernel-doc] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: cfg80211: use structs for TBTT information accessBenjamin Berg
Make the data access a bit nicer overall by using structs. There is a small change here to also accept a TBTT information length of eight bytes as we do not require the 20 MHz PSD information. This also fixes a bug reading the short SSID on big endian machines. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214436.4c3f8901c1bc.Ic3e94fd6e1bccff7948a252ad3bb87e322690a17@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: ieee80211: add structs for TBTT information accessBenjamin Berg
The TBTT information can have various lengths with different elements thare are present. Add definitions for the two types that we are interested in (i.e. the ones that contain the BSSID). Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214436.2a6f8766a3ec.Ic962e28492212cc8ee1eb602b8f07a4ea172fc4a@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: ieee80211: add definitions for RNR MLD paramsBenjamin Berg
Add the definitions necessary to parse the MLD parameters included in an RNR element. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214436.9999842237c0.I80f00a90cb4e43071432b4158f206c73ba799618@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: ieee80211: use default for medium synchronization delayBenjamin Berg
Default values are defined for the information included in the Medium Synchronization Delay Information subfield. The spec says to initialize the values to these defaults and only change them when included. Return the default value instead of zero so that the defaults are used when the field is not included in the association response. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214435.a7725bef3795.I2d3528cf4af021c5b37f97fbe64ae9116ce9bef1@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: ieee80211: add helper to validate ML element type and sizeBenjamin Berg
The helper functions to retrieve the EML capabilities and medium synchronization delay both assume that the type is correct. Instead of assuming the length is correct and still checking the type, add a new helper to check both and don't do any verification. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214435.1b50e7a3b3cf.I9385514d8eb6d6d3c82479a6fa732ef65313e554@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: ieee80211: Fix the common size calculation for reconfiguration MLIlan Peer
The common information length is found in the first octet of the common information. Fixes: 0f48b8b88aa9 ("wifi: ieee80211: add definitions for multi-link element") Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230618214435.3c7ed4817338.I42ef706cb827b4dade6e4ffbb6e7f341eaccd398@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: cfg80211: fix regulatory disconnect with OCB/NANJohannes Berg
Since regulatory disconnect was added, OCB and NAN interface types were added, which made it completely unusable for any driver that allowed OCB/NAN. Add OCB/NAN (though NAN doesn't do anything, we don't have any info) and also remove all the logic that opts out, so it won't be broken again if/when new interface types are added. Fixes: 6e0bd6c35b02 ("cfg80211: 802.11p OCB mode handling") Fixes: cb3b7d87652a ("cfg80211: add start / stop NAN commands") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20230616222844.2794d1625a26.I8e78a3789a29e6149447b3139df724a6f1b46fc3@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: mac80211: Rename ieee80211_mle_sta_prof_size_ok()Ilan Peer
Rename it to ieee80211_mle_basic_sta_prof_size_ok() as it validates the size of the station profile included in Basic Multi-Link element. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230616094949.9bdfd263974f.I7bebd26894f33716e93cc7da576ef3215e0ba727@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: cfg80211: add element defragmentation helperBenjamin Berg
This is already needed within mac80211 and support is also needed by cfg80211 to parse ML elements. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230616094949.29c3ebeed10d.I009c049289dd0162c2e858ed8b68d2875a672ed6@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: cfg80211: ignore invalid TBTT info field typesBenjamin Berg
The TBTT information field type must be zero. This is only changed in the 802.11be draft specification where the value 1 is used to indicate that only the MLD parameters are included. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230616094949.7865606ffe94.I7ff28afb875d1b4c39acd497df8490a7d3628e3f@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: cfg80211: add inform_bss op to update BSSBenjamin Berg
This new function is called from within the inform_bss(_frame)_data functions in order for the driver to update data that it is tracking. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230616094949.8d7781b0f965.I80041183072b75c081996a1a5a230b34aff5c668@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: cfg80211: make TDLS management link-awareMukesh Sisodiya
For multi-link operation(MLO) TDLS management frames need to be transmitted on a specific link. The TDLS setup request will add BSSID along with peer address and userspace will pass the link-id based on BSSID value to the driver(or mac80211). Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230616094948.cb3d87c22812.Ia3d15ac4a9a182145bf2d418bcb3ddf4539cd0a7@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19wifi: mac80211: Support disabled links during associationIlan Peer
When the association is complete, do not configure disabled links, and track them as part of the interface data. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230608163202.c194fabeb81a.Iaefdef5ba0492afe9a5ede14c68060a4af36e444@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-19ARM: 9298/1: Drop custom mdesc->handle_irq()Linus Walleij
ARM exclusively uses GENERIC_IRQ_MULTI_HANDLER, so at some point set_handle_irq() needs to be called to handle system-wide interrupts. For all DT-enabled boards, this call happens down in the drivers/irqchip subsystem, after locating the target irqchip driver from the device tree. We still have a few instances of the boardfiles with machine descriptors passing a machine-specific .handle_irq() to the ARM kernel core. Get rid of this by letting the few remaining machines consistently call set_handle_irq() from the end of the .init_irq() callback instead and diet down one member from the machine descriptor. Cc: Marc Zyngier <maz@kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2023-06-19Merge branches 'iommu/fixes', 'arm/smmu', 'ppc/pamu', 'virtio', 'x86/vt-d', ↵Joerg Roedel
'core' and 'x86/amd' into next
2023-06-19powerpc/ptrace: Expose HASHKEYR register to ptraceBenjamin Gray
The HASHKEYR register contains a secret per-process key to enable unique hashes per process. In general it should not be exposed to userspace at all and a regular process has no need to know its key. However, checkpoint restore in userspace (CRIU) functionality requires that a process be able to set the HASHKEYR of another process, otherwise existing hashes on the stack would be invalidated by a new random key. Exposing HASHKEYR in this way also makes it appear in core dumps, which is a security concern. Multiple threads may share a key, for example just after a fork() call, where the kernel cannot know if the child is going to return back along the parent's stack. If such a thread is coerced into making a core dump, then the HASHKEYR value will be readable and able to be used against all other threads sharing that key, effectively undoing any protection offered by hashst/hashchk. Therefore we expose HASHKEYR to ptrace when CONFIG_CHECKPOINT_RESTORE is enabled, providing a choice of increased security or migratable ROP protected processes. This is similar to how ARM exposes its PAC keys. Signed-off-by: Benjamin Gray <bgray@linux.ibm.com> Reviewed-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230616034846.311705-8-bgray@linux.ibm.com
2023-06-19powerpc/ptrace: Expose DEXCR and HDEXCR registers to ptraceBenjamin Gray
The DEXCR register is of interest when ptracing processes. Currently it is static, but eventually will be dynamically controllable by a process. If a process can control its own, then it is useful for it to be ptrace-able to (e.g., for checkpoint-restore functionality). It is also relevant to core dumps (the NPHIE aspect in particular), which use the ptrace mechanism (or is it the other way around?) to decide what to dump. The HDEXCR is useful here too, as the NPHIE aspect may be set in the HDEXCR without being set in the DEXCR. Although the HDEXCR is per-cpu and we don't track it in the task struct (it's useless in normal operation), it would be difficult to imagine why a hypervisor would set it to different values within a guest. A hypervisor cannot safely set NPHIE differently at least, as that would break programs. Expose a read-only view of the userspace DEXCR and HDEXCR to ptrace. The HDEXCR is always readonly, and is useful for diagnosing the core dumps (as the HDEXCR may set NPHIE without the DEXCR setting it). Signed-off-by: Benjamin Gray <bgray@linux.ibm.com> Reviewed-by: Russell Currey <ruscur@russell.cc> [mpe: Use lower_32_bits() rather than open coding] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230616034846.311705-7-bgray@linux.ibm.com
2023-06-19tracing/timer: Add missing hrtimer modes to decode_hrtimer_mode().Sebastian Andrzej Siewior
The trace output for the HRTIMER_MODE_.*_HARD modes is seen as a number since these modes are not decoded. The author was not aware of the fancy decoding function which makes the life easier. Extend decode_hrtimer_mode() with the additional HRTIMER_MODE_.*_HARD modes. Fixes: ae6683d815895 ("hrtimer: Introduce HARD expiry mode") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20230418143854.8vHWQKLM@linutronix.de
2023-06-19fbdev/media: Use GPIO descriptors for VIA GPIOLinus Walleij
The VIA fbdev exposes a custom GPIO chip for its GPIOs, these are in turn looked up the camera driver using a custom API. Drop the custom API, provide a look-up table and convert to GPIO descriptors. Note proper polarity on the RESET line. Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-19video/hdmi: Reorder fields in 'struct hdmi_avi_infoframe'Christophe JAILLET
Group some variables based on their sizes to reduce hole and avoid padding. On x86_64, this shrinks the size of 'struct hdmi_avi_infoframe' from 68 to 60 bytes. It saves a few bytes of memory and is more cache-line friendly. This also reduces the union hdmi_infoframe the same way. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-19Merge tag 'drm-msm-next-2023-06-18' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/msm into drm-next Updates for v6.5.. this includes a backmerg of drm-next tree to be able to use new DRM DSC helpers. Core: + Add Marijn Suijten as drm/msm reviewer + Adreno A660 bindings + SM8350 MDSS bindings fix + Fix adreno_is_a690() warnings + More generic (DRM) and MSM-specific DSC helpers DP: + Removed obsolete USB-PD remains + Documented DP compatible string for sm8550 platform DPU: + Enable missing features (DSPP, DSC, split display) on sc8180x, sc8280xp, sm8450 + Enabled writeback on sc7280 + Implemented tearcheck support to support vsync on SM150 and newer platforms + Native HDMI output support + Dropped unused features: regdma, GC, IGC + Fixed the DSC flush operations + Simplified QoS handling, removing obsolete and unused features and merging SSPP and WB code paths + Reworked dpu_encoder initialisation path + Enabled DSPP support on sdm845 + Disabled color-management if DSPP blocks are not available + Added support for DSC 1.2 blocks found on sm8350 and later + Added .fb_dirty to fix CMD panels DSI: + Drop powerup quirks in favour of using pre_enable_prev_first for downstream bridges + Fixed 14nm DSI PHY programming + Added support for DSI and 28nm DSI PHY on MSM8226 platform + Make use of DRM and MSM DSC helpers MDP5: + Added support for display controller on MSM8226 platform GPU: + A690 support + Don't set IO_PGTABLE_QUIRK_ARM_OUTER_WBWA on devices with coherent SMMU (like A690) + Move cmdstream dumping out of fence signaling path + Cleanups + Support for a6xx devices without GMU (aka "GMU wrapper" + a610 support + a619_holi support (a619 variant without GMU) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGsUB=tRB4nR6ZCJMuLhro5zN3BQWUSywVYbaipqqDZ_cQ@mail.gmail.com
2023-06-19Backmerge tag 'v6.4-rc7' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next Linux 6.4-rc7 Need this to pull in the msm work. Signed-off-by: Dave Airlie <airlied@redhat.com>
2023-06-19Merge tag 'amd-drm-next-6.5-2023-06-16' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-next amd-drm-next-6.5-2023-06-16: amdgpu: - Misc display fixes - W=1 fixes - Improve scheduler naming - DCN 3.1.4 fixes - kdoc fixes - Enable W=1 - VCN 4.0 fix - xgmi fixes - TOPDOWN fix for large BAR systems - eDP fix - PSR fixes - SubVP fixes - Freesync fix - DPIA fix - SMU 13.0.5 fixes - vblflash fix - RAS fixes - SDMA 4 fix - BO locking fix - BO backing store fix - NBIO 7.9 fixes - GC 9.4.3 fixes - GPU reset recovery fixes - HMM fix amdkfd: - Fix NULL check - Trap fixes - Queue count fix - Add event age tracking radeon: - fbdev client fix scheduler: - Avoid an infinite loop UAPI: - Add KFD event age tracking: Proposed ROCT-Thunk-Interface: https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/commit/efdbf6cfbc026bd68ac3c35d00dacf84370eb81e https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/commit/1820ae0a2db85b6f584611dc0cde1a00e7c22915 Proposed ROCR-Runtime: https://github.com/RadeonOpenCompute/ROCR-Runtime/compare/master...zhums:ROCR-Runtime:new_event_wait_review https://github.com/RadeonOpenCompute/ROCR-Runtime/commit/e1f5bdb88eb882ac798aeca2c00ea3fbb2dba459 https://github.com/RadeonOpenCompute/ROCR-Runtime/commit/7d26afd14107b5c2a754c1a3f415d89f3aabb503 drm: - DP MST fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230616163548.7706-1-alexander.deucher@amd.com
2023-06-18posix-timers: Add sys_ni_posix_timers() prototypeArnd Bergmann
The sys_ni_posix_timers() definition causes a warning when the declaration is missing, so this needs to be added along with the normal syscalls, outside of the #ifdef. kernel/time/posix-stubs.c:26:17: error: no previous prototype for 'sys_ni_posix_timers' [-Werror=missing-prototypes] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230607142925.3126422-1-arnd@kernel.org
generated by cgit (git 2.34.1) at 2025-09-28 22:48:59 +0000