next-20250402: riscv/mm/tlbflush.c:195:23: error: 'start' redeclared as different kind of symbol

[Naresh Kamboju]

Regressions on riscv builds tinyconfig, allnoconfig failed with toolchains
clang-20 and gcc-13 on the Linux next starting from next-20250328.

First seen on the next-20250328
 Good: next-20250327
 Bad: next-20250328..next-20250402

Regressions found on riscv:
  - build/gcc-13-tinyconfig
  - build/gcc-13-allnoconfig
  - build/clang-20-tinyconfig
  - build/clang-20-allnoconfig

Regression Analysis:
 - New regression? Yes
 - Reproducibility? Yes

Boot regression: riscv tlbflush.c error 'start' redeclared as
different kind of symbol

Reported-by: Linux Kernel Functional Testing <lkft at linaro.org>

## Build log
arch/riscv/mm/tlbflush.c: In function 'arch_tlbbatch_add_pending':
arch/riscv/mm/tlbflush.c:195:23: error: 'start' redeclared as
different kind of symbol
  195 |         unsigned long start = uaddr & PAGE_MASK;
      |                       ^~~~~
arch/riscv/mm/tlbflush.c:193:53: note: previous definition of 'start'
with type 'long unsigned int'
  193 |                 struct mm_struct *mm, unsigned long start,
unsigned long end)
      |                                       ~~~~~~~~~~~~~~^~~~~
arch/riscv/mm/tlbflush.c:195:31: error: 'uaddr' undeclared (first use
in this function)
  195 |         unsigned long start = uaddr & PAGE_MASK;
      |                               ^~~~~
arch/riscv/mm/tlbflush.c:195:31: note: each undeclared identifier is
reported only once for each function it appears in


## Source
* Kernel version:  6.14.0
* Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
* Git sha: fefb886b1344e222b3218f3c0165b0fd770e8b88
* Git describe: next-20250402
* Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250402/
* Architectures: riscv
* Toolchains: clang-20, gcc-13
* Kconfigs: tinyconfig, lkftconfig

## Build
* Build log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250402/testrun/27859100/suite/build/test/gcc-13-tinyconfig/log
* Build history:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250402/testrun/27859100/suite/build/test/gcc-13-tinyconfig/history/
* Build details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250402/testrun/27859100/suite/build/test/gcc-13-tinyconfig/details/
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2v9owDFW4gzrtyDZItZlOSzN7Zd/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2v9owDFW4gzrtyDZItZlOSzN7Zd/config

## Steps to reproduce
- tuxmake --runtime podman --target-arch riscv --toolchain clang-20
--kconfig tinyconfig LLVM=1 LLVM_IAS=1


--
Linaro LKFT
https://lkft.linaro.org