Merge tag 'rust-fixes-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Pull Rust fixes from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Fix 'objtool' warnings for the upcoming Rust 1.101.0 (expected
     2026-12-24) by adding one more 'noreturn' function

  'kernel' crate:

   - Fix KCFI failures on every call from C to Rust IRQ handlers and
     'hrtimer' callbacks by giving the C enum bindings the correct
     'cfi_encoding'. Also prevent the same issue for DMA callbacks
     taking 'dma_data_direction'

   - 'workqueue' module: fix a runtime warning when queueing work on the
     deprecated 'system_wq' by switching to 'system_{percpu,dfl}_wq'"

* tag 'rust-fixes-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
  rust: dma: declare cfi_encoding for dma_data_direction
  rust: hrtimer: declare cfi_encoding for hrtimer_restart
  rust: irq: declare cfi_encoding for irqreturn
  objtool/rust: add one more `noreturn` Rust function for Rust 1.101.0
  rust: workqueue: replace deprecated system_wq with system_{percpu,dfl}_wq