[REGRESSION] next/master: (build) use of undeclared identifier 'check_vector_unaligned_access'; did ...

New build issue found on next/master:

---
 use of undeclared identifier 'check_vector_unaligned_access'; did you mean 'check_unaligned_access'? in arch/riscv/kernel/unaligned_access_speed.o (arch/riscv/kernel/unaligned_access_speed.c) [logspec:kbuild,kbuild.compiler.error]
---

Log excerpt:
=====================================================
/tmp/kci/linux/arch/riscv/kernel/unaligned_access_speed.c:380:24: error: use of undeclared identifier 'check_vector_unaligned_access'; did you mean 'check_unaligned_access'?
  380 |                 schedule_on_each_cpu(check_vector_unaligned_access);
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                      check_unaligned_access
/tmp/kci/linux/arch/riscv/kernel/unaligned_access_speed.c:112:12: note: 'check_unaligned_access' declared here
  112 | static int check_unaligned_access(struct page *page)
      |            ^
/tmp/kci/linux/arch/riscv/kernel/unaligned_access_speed.c:380:24: error: incompatible function pointer types passing 'int (struct page *)' to parameter of type 'work_func_t' (aka 'void (*)(struct work_struct *)') [-Wincompatible-function-pointer-types]
  380 |                 schedule_on_each_cpu(check_vector_unaligned_access);
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/kci/linux/include/linux/workqueue.h:636:45: note: passing argument to parameter 'func' here
  636 | extern int schedule_on_each_cpu(work_func_t func);
      |                                             ^
2 errors generated.

=====================================================

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Reported-by: kernelci.org bot <[email protected]>
Link: https://lore.kernel.org/all/[email protected]/

For complete logs and details about the environment used, see the issue
on the KernelCI dashboard:

- dashboard: https://d.kernelci.org/i/maestro:93d4e1ca2f17ba7ce0541f3202fa21a0043a7f2c
- giturl: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
- commit HEAD:  95d6a9ccef99117115e41e9adb271243bd5e985b
- tags: next-20260730

# Builds where the incident occurred:

## defconfig+allnoconfig on (riscv):
- compiler: clang-21
- config: None
- dashboard: https://d.kernelci.org/build/maestro:6a6b7183798ea6c1ef929eaa

#regzbot introduced: 78bc8af4affb9a732504eb22eeac7d1e50883853..95d6a9ccef99117115e41e9adb271243bd5e985b
#regzbot link: https://d.kernelci.org/i/maestro:93d4e1ca2f17ba7ce0541f3202fa21a0043a7f2c

#kernelci issue maestro:93d4e1ca2f17ba7ce0541f3202fa21a0043a7f2c

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