linux-kernel - linux-next: build failure after merge of the crypto tree

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Message-ID: <20240313115751.36b01158@canb.auug.org.au>
Date: Wed, 13 Mar 2024 11:57:51 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Herbert Xu <herbert@...dor.apana.org.au>, Andrew Morton
 <akpm@...ux-foundation.org>
Cc: Eric Biggers <ebiggers@...gle.com>, Barry Song <v-songbaohua@...o.com>,
 Linux Crypto List <linux-crypto@...r.kernel.org>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the crypto tree

Hi all,

After merging the crypto tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

In file included from mm/zswap.c:30:
include/crypto/acompress.h: In function 'acomp_is_async':
include/crypto/acompress.h:124:16: error: implicit declaration of function 'crypto_comp_alg_common'; did you mean 'crypto_tfm_alg_name'? [-Werror=implicit-function-declaration]
  124 |         return crypto_comp_alg_common(tfm)->base.cra_flags &
      |                ^~~~~~~~~~~~~~~~~~~~~~
      |                crypto_tfm_alg_name
include/crypto/acompress.h:124:43: error: invalid type argument of '->' (have 'int')
  124 |         return crypto_comp_alg_common(tfm)->base.cra_flags &
      |                                           ^~
include/crypto/acompress.h:126:1: error: control reaches end of non-void function [-Werror=return-type]
  126 | }
      | ^
cc1: some warnings being treated as errors

Caused by commit

  86464db929ca ("crypto: introduce: acomp_is_async to expose if comp drivers might sleep")

from the mm-unstable branch of the mm tree interacting with commit

  2beb81fbf0c0 ("crypto: remove CONFIG_CRYPTO_STATS")

from the crypto tree.

I have reverted these commits from the mm-unstable branch for today:

  86464db929ca ("crypto: introduce: acomp_is_async to expose if comp drivers might sleep")
  791f798331bc ("mm/zswap: remove the memcpy if acomp is not sleepable")

I will stop merging the -unstable parts of the mm tree from tomorrow.

-- 
Cheers,
Stephen Rothwell

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