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authorEric Biggers <ebiggers@google.com>2019-04-12 06:57:42 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2019-04-18 16:15:03 +0200
commitc4741b23059794bd99beef0f700103b0d983b3fd (patch)
tree8db3440418a9c3ed32d57c2c2a35340479d3cc44 /crypto/ansi_cprng.c
parentcrypto: testmgr - fuzz AEADs against their generic implementation (diff)
downloadlinux-c4741b23059794bd99beef0f700103b0d983b3fd.tar.xz
linux-c4741b23059794bd99beef0f700103b0d983b3fd.zip
crypto: run initcalls for generic implementations earlier
Use subsys_initcall for registration of all templates and generic algorithm implementations, rather than module_init. Then change cryptomgr to use arch_initcall, to place it before the subsys_initcalls. This is needed so that when both a generic and optimized implementation of an algorithm are built into the kernel (not loadable modules), the generic implementation is registered before the optimized one. Otherwise, the self-tests for the optimized implementation are unable to allocate the generic implementation for the new comparison fuzz tests. Note that on arm, a side effect of this change is that self-tests for generic implementations may run before the unaligned access handler has been installed. So, unaligned accesses will crash the kernel. This is arguably a good thing as it makes it easier to detect that type of bug. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/ansi_cprng.c')
-rw-r--r--crypto/ansi_cprng.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index eff337ce9003..e7c43ea4ce9d 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -472,7 +472,7 @@ MODULE_DESCRIPTION("Software Pseudo Random Number Generator");
MODULE_AUTHOR("Neil Horman <nhorman@tuxdriver.com>");
module_param(dbg, int, 0);
MODULE_PARM_DESC(dbg, "Boolean to enable debugging (0/1 == off/on)");
-module_init(prng_mod_init);
+subsys_initcall(prng_mod_init);
module_exit(prng_mod_fini);
MODULE_ALIAS_CRYPTO("stdrng");
MODULE_ALIAS_CRYPTO("ansi_cprng");