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crypto: run initcalls for generic implementations earlier

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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 <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Eric Biggers 2019-04-11 21:57:42 -07:00 • committed by Herbert Xu
commit c4741b2305
83 changed files with 89 additions and 83 deletions
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2
crypto/drbg.c
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@ -2039,7 +2039,7 @@ static void __exit drbg_exit(void)
crypto_unregister_rngs(drbg_algs, (ARRAY_SIZE(drbg_cores) * 2));
}
module_init(drbg_init);
subsys_initcall(drbg_init);
module_exit(drbg_exit);
#ifndef CRYPTO_DRBG_HASH_STRING
#define CRYPTO_DRBG_HASH_STRING ""