linux-kernel - Re: lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of 1120 bytes is larger than 1024 bytes

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Message-ID: <d25ac395-4335-be88-9dc5-364f5715554f@intel.com>
Date:   Thu, 8 Dec 2022 14:37:45 +0800
From:   "Chen, Rong A" <rong.a.chen@...el.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        kernel test robot <lkp@...el.com>
Cc:     "Jason A. Donenfeld" <zx2c4@...nel.org>,
        oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of
 1120 bytes is larger than 1024 bytes



On 12/8/2022 12:18 PM, Herbert Xu wrote:
> On Mon, Nov 07, 2022 at 09:18:05PM +0800, kernel test robot wrote:
>> Hi Jason,
>>
>> FYI, the error/warning still remains.
>>
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head:   f0c4d9fc9cc9462659728d168387191387e903cc
>> commit: 2d16803c562ecc644803d42ba98a8e0aef9c014e crypto: blake2s - remove shash module
>> date:   5 months ago
>> config: i386-buildonly-randconfig-r006-20221107
>> compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
>> reproduce (this is a W=1 build):
>>          # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2d16803c562ecc644803d42ba98a8e0aef9c014e
>>          git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>          git fetch --no-tags linus master
>>          git checkout 2d16803c562ecc644803d42ba98a8e0aef9c014e
> 
> This was fixed months ago with
> 
> commit d6c14da474bf260d73953fbf7992c98d9112aec7
> Author: Jason A. Donenfeld <Jason@...c4.com>
> Date:   Mon Jun 20 09:52:43 2022 +0200
> 
>      crypto: lib/blake2s - reduce stack frame usage in self test
> 
> Why is LKP still testing the old commit?

Hi Herbert,

Thanks for the information, I checked the result of the fix commit,
it reduced the stack frame but the warning still exists:

lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of 1056 
bytes is larger than 1024 bytes [-Wframe-larger-than=]

We'll ignore commit 2d16803c56 to avoid reporting it again.

Best Regards,
Rong Chen


> 
> Cheers,
>