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From: Changwei Zou <changwei.zou@canonical.com>
To: lukas@wunner.de
Cc: Martin.Kepplinger-Novakovic@ginzinger.com,
	changwei.zou@canonical.com, davem@davemloft.net,
	herbert@gondor.apana.org.au, ignat@linux.win,
	linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
	martink@posteo.de
Subject: Re: [PATCH v2] crypto: rsassa-pkcs1: align DMA buffer to ARCH_DMA_MINALIGN
Date: Tue, 28 Jul 2026 19:19:41 +1000	[thread overview]
Message-ID: <20260728091941.13838-1-changwei.zou@canonical.com> (raw)
In-Reply-To: <amhJWs2AdPgFzw8t@wunner.de>

Hi Lukas,

Thank you for your feedback and guidance.

Yes, "PATCH V2" supersedes the previous patch.
https://lore.kernel.org/r/20260723150107.33546-1-changwei.zou@canonical.com

Although the first patch passed 10,000 iterations of stress testing,
it implicitly relied on in_buf (i.e., ctx->key_size) being larger than a cache line.

In PATCH V2, aligning out_buf to ARCH_DMA_MINALIGN makes the root cause clearer.

I will fix the typo and switch to the CRYPTO_* alignment macros in V3.

Thanks again.

Kind regards,
Changwei


      parent reply	other threads:[~2026-07-28  9:19 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-27 22:43 Changwei Zou
2026-07-28  6:16 ` Lukas Wunner
2026-07-28  6:23   ` Lukas Wunner
2026-07-28  9:19   ` Changwei Zou [this message]

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