Merge tag 'rust-timekeeping-for-v7.1' of https://github.com/Rust-for-Linux/linux into rust-next

Pull timekeeping updates from Andreas Hindborg:

 - Expand the example section in the 'HrTimer' documentation.

 - Mark the 'ClockSource' trait as unsafe to ensure valid values for
   'ktime_get()'.

 - Add 'Delta::from_nanos()'.

This is a back merge since the pull request has a newer base -- we will
avoid that in the future.

And, given it is a back merge, it happens to resolve the "subtle" conflict
around '--remap-path-{prefix,scope}' that I discussed in linux-next [1],
plus a few other common conflicts. The result matches what we did for
next-20260407.

The actual diffstat (i.e. using a temporary merge of upstream first) is:

    rust/kernel/time.rs         |  32 ++++-
    rust/kernel/time/hrtimer.rs | 336 ++++++++++++++++++++++++++++++++++++++++++++
    2 files changed, 362 insertions(+), 6 deletions(-)

Link: https://lore.kernel.org/linux-next/CANiq72kdxB=W3_CV1U44oOK3SssztPo2wLDZt6LP94TEO+Kj4g@mail.gmail.com/ [1]

* tag 'rust-timekeeping-for-v7.1' of https://github.com/Rust-for-Linux/linux:
  hrtimer: add usage examples to documentation
  rust: time: make ClockSource unsafe trait
  rust/time: Add Delta::from_nanos()

1 files changed, 2 insertions, 2 deletions

diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs
index 9b89564ae6d8..8311d91549e1 100644
--- a/rust/kernel/str.rs
+++ b/rust/kernel/str.rs
@@ -680,13 +680,13 @@ impl fmt::Write for Formatter<'_> {
 ///
 /// * The first byte of `buffer` is always zero.
 /// * The length of `buffer` is at least 1.
-pub(crate) struct NullTerminatedFormatter<'a> {
+pub struct NullTerminatedFormatter<'a> {
     buffer: &'a mut [u8],
 }
 
 impl<'a> NullTerminatedFormatter<'a> {
     /// Create a new [`Self`] instance.
-    pub(crate) fn new(buffer: &'a mut [u8]) -> Option<NullTerminatedFormatter<'a>> {
+    pub fn new(buffer: &'a mut [u8]) -> Option<NullTerminatedFormatter<'a>> {
         *(buffer.first_mut()?) = 0;
 
         // INVARIANT: