[PATCH] riscv: declare overflow_stack as exported from traps.c

[patchwork-bot+linux-riscv at kernel.org]

Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer at rivosinc.com>:

On Thu, 23 Nov 2023 13:42:14 +0000 you wrote:
> The percpu area overflow_stacks is exported from arch/riscv/kernel/traps.c
> for use in the entry code, but is not declared anywhere. Add the relevant
> declaration to arch/riscv/include/asm/stacktrace.h to silence the following
> sparse warning:
> 
> arch/riscv/kernel/traps.c:395:1: warning: symbol '__pcpu_scope_overflow_stack' was not declared. Should it be static?
> 
> [...]

Here is the summary with links:
  - riscv: declare overflow_stack as exported from traps.c
    https://git.kernel.org/riscv/c/2cf963787529

You are awesome, thank you!
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