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crypto: lib/blake2s - Split up test function to halve stack usage

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Reduce the stack usage further by splitting up the test function.

Also squash blocks and unaligned_blocks into one array.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2022-12-21 14:58:08 +08:00
parent 49bc6a7786
commit e20d5a22bd
1 changed files with 22 additions and 3 deletions
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25
lib/crypto/blake2s-selftest.c
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@ -545,7 +545,7 @@ static const u8 blake2s_testvecs[][BLAKE2S_HASH_SIZE] __initconst = {
0xd6, 0x98, 0x6b, 0x07, 0x10, 0x65, 0x52, 0x65, },
};
bool __init blake2s_selftest(void)
static bool __init noinline_for_stack blake2s_digest_test(void)
{
u8 key[BLAKE2S_KEY_SIZE];
u8 buf[ARRAY_SIZE(blake2s_testvecs)];
@ -589,11 +589,20 @@ bool __init blake2s_selftest(void)
}
}
return success;
}
static bool __init noinline_for_stack blake2s_random_test(void)
{
struct blake2s_state state;
bool success = true;
int i, l;
for (i = 0; i < 32; ++i) {
enum { TEST_ALIGNMENT = 16 };
u8 unaligned_block[BLAKE2S_BLOCK_SIZE + TEST_ALIGNMENT - 1]
u8 blocks[BLAKE2S_BLOCK_SIZE * 2 + TEST_ALIGNMENT - 1]
__aligned(TEST_ALIGNMENT);
u8 blocks[BLAKE2S_BLOCK_SIZE * 2];
u8 *unaligned_block = blocks + BLAKE2S_BLOCK_SIZE;
struct blake2s_state state1, state2;
get_random_bytes(blocks, sizeof(blocks));
@ -630,3 +639,13 @@ bool __init blake2s_selftest(void)
return success;
}
bool __init blake2s_selftest(void)
{
bool success;
success = blake2s_digest_test();
success &= blake2s_random_test();
return success;
}