LU-14151 gss: use skcipher when sync_skcipher not available

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 79c4d0b..286f717 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1143,6 +1143,24 @@ account_page_dirtied, [
 ]) # LC_ACCOUNT_PAGE_DIRTIED_3ARGS
 
 #
+# LC_HAVE_CRYPTO_ALLOC_SKCIPHER
+#
+# Kernel version 4.12 commit 7a7ffe65c8c5
+# introduced crypto_alloc_skcipher().
+#
+AC_DEFUN([LC_HAVE_CRYPTO_ALLOC_SKCIPHER], [
+LB_CHECK_COMPILE([if crypto_alloc_skcipher is defined],
+crypto_alloc_skcipher, [
+       #include <crypto/skcipher.h>
+],[
+       crypto_alloc_skcipher(NULL, 0, 0);
+],[
+       AC_DEFINE(HAVE_CRYPTO_ALLOC_SKCIPHER, 1,
+               [crypto_alloc_skcipher is defined])
+])
+]) # LC_HAVE_CRYPTO_ALLOC_SKCIPHER
+
+#
 # LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
 #
 # 4.3 replace interval with interval_exp in 'struct blk_integrity'
@@ -2365,6 +2383,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_BIO_ENDIO_USES_ONE_ARG
        LC_SYMLINK_OPS_USE_NAMEIDATA
        LC_ACCOUNT_PAGE_DIRTIED_3ARGS
+       LC_HAVE_CRYPTO_ALLOC_SKCIPHER
 
        # 4.3
        LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY