package/cryptodev-linux: fix build with kernel >= 6.7

Fix the following build failure with kernel >= 6.7:

/home/buildroot/autobuild/instance-0/output-1/build/cryptodev-linux-1.13/./cryptlib.c: In function ‘cryptodev_hash_init’:
/home/buildroot/autobuild/instance-0/output-1/build/cryptodev-linux-1.13/./cryptlib.c:384:28: error: implicit declaration of function ‘crypto_ahash_alignmask’; did you mean ‘crypto_aead_alignmask’? [-Werror=implicit-function-declaration]
  384 |         hdata->alignmask = crypto_ahash_alignmask(hdata->async.s);
      |                            ^~~~~~~~~~~~~~~~~~~~~~
      |                            crypto_aead_alignmask

Fixes:
 - http://autobuild.buildroot.org/results/466360c7baec2edf42dc6f0ad9a8d757dd471c88

Signed-off-by: Fabrice Fontaine <[email protected]>
Signed-off-by: Peter Korsgaard <[email protected]>

diff --git a/package/cryptodev-linux/0003-Fix-build-for-Linux-6-7-rc1.patch b/package/cryptodev-linux/0003-Fix-build-for-Linux-6-7-rc1.patch
new file mode 100644 (file)
index 0000000..4fdccaf
--- /dev/null
+++ b/package/cryptodev-linux/0003-Fix-build-for-Linux-6-7-rc1.patch
@@ -0,0 +1,38 @@
+From 5e7121e45ff283d30097da381fd7e97c4bb61364 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <[email protected]>
+Date: Sun, 10 Dec 2023 13:57:55 +0000
+Subject: [PATCH] Fix build for Linux 6.7-rc1
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Since Linux 6.7-rc1, no ahash algorithms set a nonzero alignmask,
+and therefore `crypto_ahash_alignmask` has been removed.
+
+See also: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f8660c82b79af595b056f6b9f4f227edeb88574
+          https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c626910f3f1bbce6ad18bc613d895d2a089ed95e
+
+Signed-off-by: Joan Bruguera Micó <[email protected]>
+
+Upstream: https://github.com/cryptodev-linux/cryptodev-linux/commit/5e7121e45ff283d30097da381fd7e97c4bb61364
+Signed-off-by: Fabrice Fontaine <[email protected]>
+---
+ cryptlib.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/cryptlib.c b/cryptlib.c
+index 4d739e5..0e59d4c 100644
+--- a/cryptlib.c
++++ b/cryptlib.c
+@@ -381,7 +381,11 @@ int cryptodev_hash_init(struct hash_data *hdata, const char *alg_name,
+       }
+ 
+       hdata->digestsize = crypto_ahash_digestsize(hdata->async.s);
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 7, 0))
+       hdata->alignmask = crypto_ahash_alignmask(hdata->async.s);
++#else
++      hdata->alignmask = 0;
++#endif
+ 
+       init_completion(&hdata->async.result.completion);
+