linux-kernel - Re: [PATCH] tpm: eventlog: Declare mapping_size __maybe

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Message-ID: <7D1A8A81E3AA4A52+a1158f17-c22d-4a2e-9188-4d3fc28ffc0c@uniontech.com>
Date: Wed, 12 Mar 2025 14:36:22 +0800
From: WangYuli <wangyuli@...ontech.com>
To: Jarkko Sakkinen <jarkko@...nel.org>
Cc: peterhuewe@....de, jgg@...pe.ca, ardb@...nel.org, gourry@...rry.net,
 linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org,
 zhanjun@...ontech.com, niecheng1@...ontech.com, guanwentao@...ontech.com,
 Chen Linxuan <chenlinxuan@...ontech.com>
Subject: Re: [PATCH] tpm: eventlog: Declare mapping_size __maybe_unused

Hi Jarkko,

On 2025/3/12 14:20, Jarkko Sakkinen wrote:
> Why do we care clang-19 with W=1e?

1. the kernel, being a software endeavor predicated on robustness, 
should not normally countenance build failures stemming from toolchain 
and compilation setups that are implicitly project-approved.

2. Besides, it's not as if GCC is immune to "unused-but-set-variable" 
warnings.  The thing is, I just happen to be using clang-19 for kernel 
builds.

> Only one instance that demonstrates the issue please.

Thanks for the feedback, I'll be more mindful going forward.

-- 
WangYuli

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