[PATCH v2] riscv: add CALLER_ADDRx support

[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 Fri,  2 Feb 2024 01:51:02 +0000 you wrote:
> CALLER_ADDRx returns caller's address at specified level, they are used
> for several tracers. These macros eventually use
> __builtin_return_address(n) to get the caller's address if arch doesn't
> define their own implementation.
> 
> In RISC-V, __builtin_return_address(n) only works when n == 0, we need
> to walk the stack frame to get the caller's address at specified level.
> 
> [...]

Here is the summary with links:
  - [v2] riscv: add CALLER_ADDRx support
    https://git.kernel.org/riscv/c/680341382da5

You are awesome, thank you!
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