Linux cryptographic layer development
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From: Herbert Xu <herbert@gondor.apana.org.au>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>,
	Harald Freudenberger <freude@linux.ibm.com>,
	Ingo Franzki <ifranzki@linux.ibm.com>,
	linux-crypto@vger.kernel.org, Eric Biggers <ebiggers@kernel.org>,
	dengler@linux.ibm.com, linux-s390@vger.kernel.org,
	dm-devel@lists.linux.dev, agk@redhat.com, snitzer@kernel.org,
	Milan Broz <gmazyland@gmail.com>
Subject: Re: [PATCH] crypto/authenc: don't return -EBUSY when enqueuing the hash request
Date: Tue, 23 Sep 2025 23:17:52 +0800	[thread overview]
Message-ID: <aNK6IMzUgslPVi3x@gondor.apana.org.au> (raw)
In-Reply-To: <194f9d1e-b6b0-54c7-6eb8-37ac0c0c1f9d@redhat.com>

On Tue, Sep 23, 2025 at 01:14:10PM +0200, Mikulas Patocka wrote:
>
> static void authenc_request_complete(struct aead_request *req, int err)
> {
>         if (err != -EINPROGRESS)
>                 aead_request_complete(req, err);
> }

Oh OK.  That was kind of a hack which worked because authenc was
used by IPsec only, so it didn't expect to be called with MAY_BACKLOG.

Now that you're calling it with MAY_BACKLOG, we need to fix it to
distinguish between an EINPROGRESS notification for EBUSY and one
that's returned directly by an async function.

Thanks,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

  parent reply	other threads:[~2025-09-23 15:18 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20250908131642.385445532@debian4.vm>
     [not found] ` <3a6b6f8f-5205-459c-810a-2425aae92fc8@linux.ibm.com>
     [not found]   ` <e1e420d5-dc00-14d0-fdef-635d6ef70811@redhat.com>
     [not found]     ` <bb68f9d6-8180-4291-9e6b-33bbdcef780f@linux.ibm.com>
     [not found]       ` <8cb59ed5-1c9a-49de-beee-01eda52ad618@linux.ibm.com>
     [not found]         ` <1af710ec-0f23-2522-d715-e683b9e557d8@redhat.com>
     [not found]           ` <f799d7ab97470f2529b8dcb5566fd673@linux.ibm.com>
2025-09-22 19:08             ` [PATCH] crypto/authenc: don't return -EBUSY when enqueuing the hash request Mikulas Patocka
2025-09-23  3:47               ` Herbert Xu
2025-09-23 11:14                 ` Mikulas Patocka
2025-09-23 14:36                   ` Mikulas Patocka
2025-09-23 15:17                   ` Herbert Xu [this message]
2025-09-24 10:20                     ` [PATCH] crypto: authenc - Correctly pass EINPROGRESS back up to the caller Herbert Xu
2025-09-24 13:17                       ` Ingo Franzki
2025-11-25 14:02                     ` [PATCH] crypto/authenc: don't return -EBUSY when enqueuing the hash request Mikulas Patocka
2025-11-26  5:16                       ` Herbert Xu

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