Miguel Ojeda 89eed1ab11 rust: upgrade to Rust 1.71.1 ... This is the second upgrade to the Rust toolchain, from 1.68.2 to 1.71.1 (i.e. the latest). See the upgrade policy [1] and the comments on the first upgrade in commit 3ed03f4da0 ("rust: upgrade to Rust 1.68.2"). # Unstable features No unstable features (that we use) were stabilized. Therefore, the only unstable feature allowed to be used outside the `kernel` crate is still `new_uninit`, though other code to be upstreamed may increase the list. Please see [2] for details. # Required changes For the upgrade, this patch requires the following changes: - Removal of the `__rust_*` allocator functions, together with the addition of the `__rust_no_alloc_shim_is_unstable` static. See [3] for details. - Some more compiler builtins added due to `<f{32,64}>::midpoint()` that got added in Rust 1.71 [4]. # `alloc` upgrade and reviewing The vast majority of changes 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://github.com/rust-lang/rust/pull/86844 [3] Link: https://github.com/rust-lang/rust/pull/92048 [4] Closes: https://github.com/Rust-for-Linux/linux/issues/68 Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Reviewed-by: Trevor Gross <tmgross@umich.edu> Link: https://lore.kernel.org/r/20230729220317.416771-1-ojeda@kernel.org Signed-off-by: Miguel Ojeda <ojeda@kernel.org>		2023-08-14 17:50:02 +02:00
..
ABI	cxl fixes for v6.5-rc5	2023-08-03 15:41:48 -07:00
accel
accounting
admin-guide	RISC-V Fixes for 6.5-rc5	2023-08-04 16:04:37 -07:00
arch	- Work around an erratum on GIC700, where a race between a CPU	2023-07-30 10:59:19 -07:00
block
bpf
cdrom
core-api	workqueue: Changes for v6.5	2023-06-27 16:32:52 -07:00
cpu-freq
crypto
dev-tools	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
devicetree	Including fixes from bpf and wireless.	2023-08-03 14:00:02 -07:00
doc-guide
driver-api	Fixes for pci_clean_master, error handling in driver inits, and various	2023-07-09 09:35:51 -07:00
fault-injection
fb
features	LoongArch: Add jump-label implementation	2023-06-29 20:58:44 +08:00
filesystems	vfs: get rid of old '->iterate' directory operation	2023-08-06 15:08:35 +02:00
firmware-guide
firmware_class
fpga
gpu
hid
hwmon
i2c
iio
images
infiniband
input
isdn
kbuild
kernel-hacking
leds	- New Drivers	2023-07-03 11:26:05 -07:00
litmus-tests
livepatch
locking
loongarch
maintainer
mhi
mips
misc-devices
mm	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
netlabel
netlink
networking	docs: net: clarify the NAPI rules around XDP Tx	2023-07-21 18:51:37 -07:00
nvdimm
nvme
PCI	Merge branch 'pci/controller/endpoint'	2023-06-26 13:00:00 -05:00
pcmcia
peci
power
powerpc
process	rust: upgrade to Rust 1.71.1	2023-08-14 17:50:02 +02:00
RCU
riscv	Documentation: RISC-V: hwprobe: Fix a formatting error	2023-07-11 10:43:51 -07:00
rust	docs: rust: add paragraph about finding a suitable libclang	2023-08-09 19:33:31 +02:00
s390
scheduler
scsi
security
sound
sphinx
sphinx-static
spi
staging
target	scsi: target: docs: Remove tcm_mod_builder.py	2023-06-28 22:01:32 -04:00
timers
tools
trace	Char/Misc and other driver subsystem updates for 6.5-rc1	2023-07-03 12:46:47 -07:00
translations	A half-dozen late arriving docs patches. They are mostly fixes, but we	2023-07-06 22:15:38 -07:00
usb
userspace-api	media updates for v6.5-rc1	2023-07-05 10:42:32 -07:00
virt	A half-dozen late arriving docs patches. They are mostly fixes, but we	2023-07-06 22:15:38 -07:00
w1
watchdog
wmi	platform/x86: dell-ddv: Fix mangled list in documentation	2023-07-11 12:15:30 +02:00
.gitignore
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py
docutils.conf
dontdiff
index.rst
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst	platform-drivers-x86 for v6.5-1	2023-06-30 14:50:00 -07:00