Linux cryptographic layer development
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From: Demi Marie Obenour <demiobenour@gmail.com>
To: Bartosz Golaszewski <brgl@kernel.org>,
	Eric Biggers <ebiggers@kernel.org>
Cc: Thara Gopinath <thara.gopinath@gmail.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	Stanimir Varbanov <svarbanov@mm-sol.com>,
	Eneas U de Queiroz <cotequeiroz@gmail.com>,
	Kuldeep Singh <kuldeep.singh@oss.qualcomm.com>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	linux-crypto@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Subject: Re: [PATCH v7 09/12] crypto: qce - remove the BROKEN label
Date: Fri, 11 Sep 2026 14:35:58 -0400	[thread overview]
Message-ID: <c08519bb-b912-4d34-a164-5a9d65162716@gmail.com> (raw)
In-Reply-To: <CAMRc=McDHXWRfYTwRasdBCXMnoVkXK9T7RB+gBNgCsGof-euyg@mail.gmail.com>


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On 9/11/26 07:14, Bartosz Golaszewski wrote:
> On Thu, 10 Sep 2026 16:31:40 +0200, Eric Biggers <ebiggers@kernel.org> said:
>> On Thu, Sep 10, 2026 at 03:00:50PM +0200, Bartosz Golaszewski wrote:
>>> All self-tests now pass.
>>
>> Have the other bugs that were reported been fixed?  For example:
>> https://lore.kernel.org/linux-crypto/20260723202704.GB110634@quark/
>> https://lore.kernel.org/linux-crypto/20260723183438.GB93534@quark/
>> https://lore.kernel.org/linux-crypto/20260723205342.GC110634@quark/
>>
> 
> I will get to these too. For now, the series allows the self-tests to pass,
> I assume it it's enough to not keep the BROKEN label.

Personally, I think the driver should stay BROKEN until all the
known bugs have been fixed.  The self-tests aren't enough for HW
crypto drivers.

>>>  	help
>>>  	  This driver supports Qualcomm crypto engine accelerator
>>
>> As this patch would make the kconfig option visible again and would
>> result in everyone running "make oldconfig" being asked about it, it
> 
> I don't mind changing the symbol if you prefer it to avoid any accidental
> `make oldconfig` carry-overs.
> 
>> needs to be fixed to accurately document why anyone would want to enable
>> this option.  As you've stated, it's actually just for "testing".  The
>> false claim that it's an "accelerator" also needs to go.
>>
> 
> "Offloader" for lack of a better word?
Could it be called a "decelerator"?  That would give users an idea
of what to expect from the driver.  Maybe explicitly mention that
you will take at least a 50x performance hit?
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)


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  reply	other threads:[~2026-09-11 18:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-10 13:00 [PATCH v7 00/12] crypto: qce - Fix crypto self-test failures Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 01/12] crypto: qce - Fix HMAC self-test failures for empty messages Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 02/12] crypto: qce - Reject empty messages for AES-XTS Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 03/12] crypto: qce - Fix CTR-AES for partial block requests Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 04/12] crypto: qce - Use a fallback for AES-CTR with a partial final block Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 05/12] crypto: qce - Use fallback for fragmented skcipher payloads Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 06/12] crypto: qce - Fix xts-aes-qce for weak keys Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 07/12] crypto: qce - Use a fallback for CCM with a partial final block Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 08/12] crypto: qce - Use fallback for CCM with a fragmented payload Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 09/12] crypto: qce - remove the BROKEN label Bartosz Golaszewski
2026-09-10 14:31   ` Eric Biggers
2026-09-11 11:14     ` Bartosz Golaszewski
2026-09-11 18:35       ` Demi Marie Obenour [this message]
2026-09-10 13:00 ` [PATCH v7 10/12] crypto: qce - convert to auxiliary bus Bartosz Golaszewski
2026-09-10 13:00 ` [PATCH v7 11/12] soc: qcom: add core driver for the Qualcomm Crypto Engine Bartosz Golaszewski
2026-09-11 18:57   ` Uwe Kleine-König
2026-09-10 13:00 ` [PATCH v7 12/12] arm64: defconfig: enable the Qualcomm Crypto Engine core driver Bartosz Golaszewski
2026-09-11 18:34 ` [PATCH v7 00/12] crypto: qce - Fix crypto self-test failures Demi Marie Obenour

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