linux-kernel - Re: [PATCH v2] lib/crypto: riscv/chacha: Avoid s0/fp register

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Message-Id: 
 <176613181802.3684357.12542900768855708596.git-patchwork-notify@kernel.org>
Date: Fri, 19 Dec 2025 08:10:18 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Vivian Wang <wangruikang@...as.ac.cn>
Cc: linux-riscv@...ts.infradead.org, jerry.shih@...ive.com,
 ebiggers@...nel.org, Jason@...c4.com, ardb@...nel.org, pjw@...nel.org,
 palmer@...belt.com, aou@...s.berkeley.edu, alex@...ti.fr,
 linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] lib/crypto: riscv/chacha: Avoid s0/fp register

Hello:

This patch was applied to riscv/linux.git (fixes)
by Eric Biggers <ebiggers@...nel.org>:

On Tue, 02 Dec 2025 13:25:07 +0800 you wrote:
> In chacha_zvkb, avoid using the s0 register, which is the frame pointer,
> by reallocating KEY0 to t5. This makes stack traces available if e.g. a
> crash happens in chacha_zvkb.
> 
> No frame pointer maintenence is otherwise required since this is a leaf
> function.
> 
> [...]

Here is the summary with links:
  - [v2] lib/crypto: riscv/chacha: Avoid s0/fp register
    https://git.kernel.org/riscv/c/43169328c7b4

You are awesome, thank you!
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