pm24.git/Documentation, branch rust-6.5

docs: rust: point directly to the standalone installers

2023-05-31T16:52:35Z

The Quick Start guide points to the Rust programming language front page when it mentions the possibility of using the standalone installers instead of `rustup`. This was done to have a hopefully stable link, but it is not too helpful: readers need to figure out how to reach the standalone installers from there. Thus point directly to the page (and anchor) with the table that contains the standalone installers (plus signing key etc.). If the link breaks in the future, we can always update it as needed. And anyway having the full link includes the domain and gives more information about where the old docs were in such a broken link case, which may help. Link: https://lore.kernel.org/linux-doc/CANiq72=gpzQyh1ExGbBWWNdgH-mTATdG5F600jKD1=NLLCn7wg@mail.gmail.com/ Reviewed-by: Vincenzo Palazzo Link: https://lore.kernel.org/r/20230306220959.240235-1-ojeda@kernel.org [ Removed "install ``rustup``" ] Signed-off-by: Miguel Ojeda

rust: upgrade to Rust 1.68.2

2023-05-31T15:35:03Z

This is the first upgrade to the Rust toolchain since the initial Rust merge, from 1.62.0 to 1.68.2 (i.e. the latest). # Context The kernel currently supports only a single Rust version [1] (rather than a minimum) given our usage of some "unstable" Rust features [2] which do not promise backwards compatibility. The goal is to reach a point where we can declare a minimum version for the toolchain. For instance, by waiting for some of the features to be stabilized. Therefore, the first minimum Rust version that the kernel will support is "in the future". # Upgrade policy Given we will eventually need to reach that minimum version, it would be ideal to upgrade the compiler from time to time to be as close as possible to that goal and find any issues sooner. In the extreme, we could upgrade as soon as a new Rust release is out. Of course, upgrading so often is in stark contrast to what one normally would need for GCC and LLVM, especially given the release schedule: 6 weeks for Rust vs. half a year for LLVM and a year for GCC. Having said that, there is no particular advantage to updating slowly either: kernel developers in "stable" distributions are unlikely to be able to use their distribution-provided Rust toolchain for the kernel anyway [3]. Instead, by routinely upgrading to the latest instead, kernel developers using Linux distributions that track the latest Rust release may be able to use those rather than Rust-provided ones, especially if their package manager allows to pin / hold back / downgrade the version for some days during windows where the version may not match. For instance, Arch, Fedora, Gentoo and openSUSE all provide and track the latest version of Rust as they get released every 6 weeks. Then, when the minimum version is reached, we will stop upgrading and decide how wide the window of support will be. For instance, a year of Rust versions. We will probably want to start small, and then widen it over time, just like the kernel did originally for LLVM, see commit 3519c4d6e08e ("Documentation: add minimum clang/llvm version"). # Unstable features stabilized This upgrade allows us to remove the following unstable features since they were stabilized: - `feature(explicit_generic_args_with_impl_trait)` (1.63). - `feature(core_ffi_c)` (1.64). - `feature(generic_associated_types)` (1.65). - `feature(const_ptr_offset_from)` (1.65, *). - `feature(bench_black_box)` (1.66, *). - `feature(pin_macro)` (1.68). The ones marked with `*` apply only to our old `rust` branch, not mainline yet, i.e. only for code that we may potentially upstream. With this patch applied, the only unstable feature allowed to be used outside the `kernel` crate is `new_uninit`, though other code to be upstreamed may increase the list. Please see [2] for details. # Other required changes Since 1.63, `rustdoc` triggers the `broken_intra_doc_links` lint for links pointing to exported (`#[macro_export]`) `macro_rules`. An issue was opened upstream [4], but it turns out it is intended behavior. For the moment, just add an explicit reference for each link. Later we can revisit this if `rustdoc` removes the compatibility measure. Nevertheless, this was helpful to discover a link that was pointing to the wrong place unintentionally. Since that one was actually wrong, it is fixed in a previous commit independently. Another change was the addition of `cfg(no_rc)` and `cfg(no_sync)` in upstream [5], thus remove our original changes for that. Similarly, upstream now tests that it compiles successfully with `#[cfg(not(no_global_oom_handling))]` [6], which allow us to get rid of some changes, such as an `#[allow(dead_code)]`. In addition, remove another `#[allow(dead_code)]` due to new uses within the standard library. Finally, add `try_extend_trusted` and move the code in `spec_extend.rs` since upstream moved it for the infallible version. # `alloc` upgrade and reviewing There are a large amount of changes, but the vast majority of them are due to our `alloc` fork being upgraded at once. There are two kinds of changes to be aware of: the ones coming from upstream, which we should follow as closely as possible, and the updates needed in our added fallible APIs to keep them matching the newer infallible APIs coming from upstream. Instead of taking a look at the diff of this patch, an alternative approach is reviewing a diff of the changes between upstream `alloc` and the kernel's. This allows to easily inspect the kernel additions only, especially to check if the fallible methods we already have still match the infallible ones in the new version coming from upstream. Another approach is reviewing the changes introduced in the additions in the kernel fork between the two versions. This is useful to spot potentially unintended changes to our additions. To apply these approaches, one may follow steps similar to the following to generate a pair of patches that show the differences between upstream Rust and the kernel (for the subset of `alloc` we use) before and after applying this patch: # Get the difference with respect to the old version. git -C rust checkout $(linux/scripts/min-tool-version.sh rustc) git -C linux ls-tree -r --name-only HEAD -- rust/alloc | cut -d/ -f3- | grep -Fv README.md | xargs -IPATH cp rust/library/alloc/src/PATH linux/rust/alloc/PATH git -C linux diff --patch-with-stat --summary -R > old.patch git -C linux restore rust/alloc # Apply this patch. git -C linux am rust-upgrade.patch # Get the difference with respect to the new version. git -C rust checkout $(linux/scripts/min-tool-version.sh rustc) git -C linux ls-tree -r --name-only HEAD -- rust/alloc | cut -d/ -f3- | grep -Fv README.md | xargs -IPATH cp rust/library/alloc/src/PATH linux/rust/alloc/PATH git -C linux diff --patch-with-stat --summary -R > new.patch git -C linux restore rust/alloc Now one may check the `new.patch` to take a look at the additions (first approach) or at the difference between those two patches (second approach). For the latter, a side-by-side tool is recommended. Link: https://rust-for-linux.com/rust-version-policy [1] Link: https://github.com/Rust-for-Linux/linux/issues/2 [2] Link: https://lore.kernel.org/rust-for-linux/CANiq72mT3bVDKdHgaea-6WiZazd8Mvurqmqegbe5JZxVyLR8Yg@mail.gmail.com/ [3] Link: https://github.com/rust-lang/rust/issues/106142 [4] Link: https://github.com/rust-lang/rust/pull/89891 [5] Link: https://github.com/rust-lang/rust/pull/98652 [6] Reviewed-by: Björn Roy Baron Reviewed-by: Gary Guo Reviewed-By: Martin Rodriguez Reboredo Tested-by: Ariel Miculas Tested-by: David Gow Tested-by: Boqun Feng Link: https://lore.kernel.org/r/20230418214347.324156-4-ojeda@kernel.org [ Removed `feature(core_ffi_c)` from `uapi` ] Signed-off-by: Miguel Ojeda

Merge tag 'irq-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-05-28T11:12:21Z

Pull irq fixes from Thomas Gleixner: "A set of fixes for interrupt chip drivers: - Prevent loss of state in the MIPS GIC interrupt controller - Disable pseudo NMIs on Mediatek based Chromebooks as they have firmware issues which cause instantenous chrashes and freezes wen pseudo NMIs are used - Fix the error handling path in the MBIGEN driver and a defined but not used warning in the meson-gpio interrupt chip driver" * tag 'irq-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mbigen: Unify the error handling in mbigen_of_create_domain() irqchip/meson-gpio: Mark OF related data as maybe unused irqchip/mips-gic: Use raw spinlock for gic_lock irqchip/mips-gic: Don't touch vl_map if a local interrupt is not routable irqchip/gic-v3: Disable pseudo NMIs on Mediatek devices w/ firmware issues dt-bindings: interrupt-controller: arm,gic-v3: Add quirk for Mediatek SoCs w/ broken FW

Merge tag 'arm-fixes-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-05-26T23:17:56Z

Pull ARM SoC fixes from Arnd Bergmann: "There have not been a lot of fixes for for the soc tree in 6.4, but these have been sitting here for too long. For the devicetree side, there is one minor warning fix for vexpress, the rest all all for the the NXP i.MX platforms: SoC specific bugfixes for the iMX8 clocks and its USB-3.0 gadget device, as well as board specific fixes for regulators and the phy on some of the i.MX boards. The microchip risc-v and arm32 maintainers now also add a shared maintainer file entry for the arm64 parts. The remaining fixes are all for firmware drivers, addressing mistakes in the optee, scmi and ff-a firmware driver implementation, mostly in the error handling code, incorrect use of the alloc_workqueue() interface in SCMI, and compatibility with corner cases of the firmware implementation" * tag 'arm-fixes-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: MAINTAINERS: update arm64 Microchip entries arm64: dts: imx8: fix USB 3.0 Gadget Failure in QM & QXPB0 at super speed dt-binding: cdns,usb3: Fix cdns,on-chip-buff-size type arm64: dts: colibri-imx8x: delete adc1 and dsp arm64: dts: colibri-imx8x: fix iris pinctrl configuration arm64: dts: colibri-imx8x: move pinctrl property from SoM to eval board arm64: dts: colibri-imx8x: fix eval board pin configuration arm64: dts: imx8mp: Fix video clock parents ARM: dts: imx6qdl-mba6: Add missing pvcie-supply regulator ARM: dts: imx6ull-dhcor: Set and limit the mode for PMIC buck 1, 2 and 3 arm64: dts: imx8mn-var-som: fix PHY detection bug by adding deassert delay arm64: dts: imx8mn: Fix video clock parents firmware: arm_ffa: Set reserved/MBZ fields to zero in the memory descriptors firmware: arm_ffa: Fix FFA device names for logical partitions firmware: arm_ffa: Fix usage of partition info get count flag firmware: arm_ffa: Check if ffa_driver remove is present before executing arm64: dts: arm: add missing cache properties ARM: dts: vexpress: add missing cache properties firmware: arm_scmi: Fix incorrect alloc_workqueue() invocation optee: fix uninited async notif value

Merge tag '6.4-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

2023-05-26T02:23:18Z

Pull smb directory moves and client fixes from Steve French: "Four smb3 client fixes (three of which marked for stable) and three patches to move of fs/cifs and fs/ksmbd to a new common "fs/smb" parent directory - Move the client and server source directories to a common parent directory: fs/cifs -> fs/smb/client fs/ksmbd -> fs/smb/server fs/smbfs_common -> fs/smb/common - important readahead fix - important fix for SMB1 regression - fix for missing mount option ("mapchars") in mount API conversion - minor debugging improvement" * tag '6.4-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: smb3: move Documentation/filesystems/cifs to Documentation/filesystems/smb cifs: correct references in Documentation to old fs/cifs path smb: move client and server files to common directory fs/smb cifs: mapchars mount option ignored smb3: display debug information better for encryption cifs: fix smb1 mount regression cifs: Fix cifs_limit_bvec_subset() to correctly check the maxmimum size

Merge tag 'net-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2023-05-25T17:55:26Z

Pull networking fixes from Paolo Abeni: "Including fixes from bluetooth and bpf. Current release - regressions: - net: fix skb leak in __skb_tstamp_tx() - eth: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs Current release - new code bugs: - handshake: - fix sock->file allocation - fix handshake_dup() ref counting - bluetooth: - fix potential double free caused by hci_conn_unlink - fix UAF in hci_conn_hash_flush Previous releases - regressions: - core: fix stack overflow when LRO is disabled for virtual interfaces - tls: fix strparser rx issues - bpf: - fix many sockmap/TCP related issues - fix a memory leak in the LRU and LRU_PERCPU hash maps - init the offload table earlier - eth: mlx5e: - do as little as possible in napi poll when budget is 0 - fix using eswitch mapping in nic mode - fix deadlock in tc route query code Previous releases - always broken: - udplite: fix NULL pointer dereference in __sk_mem_raise_allocated() - raw: fix output xfrm lookup wrt protocol - smc: reset connection when trying to use SMCRv2 fails - phy: mscc: enable VSC8501/2 RGMII RX clock - eth: octeontx2-pf: fix TSOv6 offload - eth: cdc_ncm: deal with too low values of dwNtbOutMaxSize" * tag 'net-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits) udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). net: phy: mscc: enable VSC8501/2 RGMII RX clock net: phy: mscc: remove unnecessary phydev locking net: phy: mscc: add support for VSC8501 net: phy: mscc: add VSC8502 to MODULE_DEVICE_TABLE net/handshake: Enable the SNI extension to work properly net/handshake: Unpin sock->file if a handshake is cancelled net/handshake: handshake_genl_notify() shouldn't ignore @flags net/handshake: Fix uninitialized local variable net/handshake: Fix handshake_dup() ref counting net/handshake: Remove unneeded check from handshake_dup() ipv6: Fix out-of-bounds access in ipv6_find_tlv() net: ethernet: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs docs: netdev: document the existence of the mail bot net: fix skb leak in __skb_tstamp_tx() r8169: Use a raw_spinlock_t for the register locks. page_pool: fix inconsistency for page_pool_ring_[un]lock() bpf, sockmap: Test progs verifier error with latest clang bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer with drops bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer ...

Merge tag 'sound-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2023-05-25T16:48:23Z

Pull sound fixes from Takashi Iwai: "A collection of small fixes: - HD-audio runtime PM bug fix - A couple of HD-audio quirks - Fix series of ASoC Intel AVS drivers - ASoC DPCM fix for a bug found on new Intel systems - A few other ASoC device-specific small fixes" * tag 'sound-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek: Enable headset onLenovo M70/M90 ASoC: dwc: move DMA init to snd_soc_dai_driver probe() ASoC: cs35l41: Fix default regmap values for some registers ALSA: hda: Fix unhandled register update during auto-suspend period ASoC: dt-bindings: tlv320aic32x4: Fix supply names ASoC: Intel: avs: Add missing checks on FE startup ASoC: Intel: avs: Fix avs_path_module::instance_id size ASoC: Intel: avs: Account for UID of ACPI device ASoC: Intel: avs: Fix declaration of enum avs_channel_config ASoC: Intel: Skylake: Fix declaration of enum skl_ch_cfg ASoC: Intel: avs: Access path components under lock ASoC: Intel: avs: Fix module lookup ALSA: hda/ca0132: add quirk for EVGA X299 DARK ASoC: soc-pcm: test if a BE can be prepared ASoC: rt5682: Disable jack detection interrupt during suspend ASoC: lpass: Fix for KASAN use_after_free out of bounds

Merge tag 'imx-fixes-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

2023-05-25T15:22:38Z

i.MX fixes for 6.4: - A couple of i.MX8MN/P video clock changes from Adam Ford to fix issue with clock re-parenting. - Add missing pvcie-supply regulator for imx6qdl-mba6 board. - A series of colibri-imx8x board fixes on pin configuration. - Set and limit the mode for PMIC bucks for imx6ull-dhcor board to fix stability problems. - A couple of changes from Frank Li to correct cdns,usb3 bindings cdns,on-chip-buff-size property and fix USB 3.0 gadget failure on i.MX8QM & QXPB0. - Add a required PHY deassert delay for imx8mn-var-som board to fix PHY detection failure. * tag 'imx-fixes-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: imx8: fix USB 3.0 Gadget Failure in QM & QXPB0 at super speed dt-binding: cdns,usb3: Fix cdns,on-chip-buff-size type arm64: dts: colibri-imx8x: delete adc1 and dsp arm64: dts: colibri-imx8x: fix iris pinctrl configuration arm64: dts: colibri-imx8x: move pinctrl property from SoM to eval board arm64: dts: colibri-imx8x: fix eval board pin configuration arm64: dts: imx8mp: Fix video clock parents ARM: dts: imx6qdl-mba6: Add missing pvcie-supply regulator ARM: dts: imx6ull-dhcor: Set and limit the mode for PMIC buck 1, 2 and 3 arm64: dts: imx8mn-var-som: fix PHY detection bug by adding deassert delay arm64: dts: imx8mn: Fix video clock parents Link: https://lore.kernel.org/r/20230516133625.GI767028@dragon Signed-off-by: Arnd Bergmann

net/handshake: Enable the SNI extension to work properly

2023-05-25T05:05:24Z

Enable the upper layer protocol to specify the SNI peername. This avoids the need for tlshd to use a DNS lookup, which can return a hostname that doesn't match the incoming certificate's SubjectName. Fixes: 2fd5532044a8 ("net/handshake: Add a kernel API for requesting a TLSv1.3 handshake") Reviewed-by: Simon Horman Signed-off-by: Chuck Lever Signed-off-by: Jakub Kicinski

smb3: move Documentation/filesystems/cifs to Documentation/filesystems/smb

2023-05-24T21:29:21Z

Documentation/filesystems/cifs contains both server and client information so its pathname is misleading. In addition, the directory fs/smb now contains both server and client, so move Documentation/filesystems/cifs to Documentation/filesystems/smb Suggested-by: Namjae Jeon Acked-by: Namjae Jeon Signed-off-by: Steve French