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crypto: ansi_cprng - Move FIPS functions under CONFIG_CRYPTO_FIPS 

fips_cprng_get_random and fips_cprng_reset is used only by
CONFIG_CRYPTO_FIPS. This also fixes compilation warnings:

 crypto/ansi_cprng.c:360: warning: ‘fips_cprng_get_random’ defined but not used
 crypto/ansi_cprng.c:393: warning: ‘fips_cprng_reset’ defined but not used

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jaswinder Singh Rajput 2009-11-23 20:25:50 +08:00 committed by Herbert Xu
parent 507069c91e
commit 2f32bfd834
1 changed files with 28 additions and 28 deletions
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56
crypto/ansi_cprng.c
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@ -357,14 +357,6 @@ static int cprng_get_random(struct crypto_rng *tfm, u8 *rdata,
return get_prng_bytes(rdata, dlen, prng, 0);
}
static int fips_cprng_get_random(struct crypto_rng *tfm, u8 *rdata,
unsigned int dlen)
{
struct prng_context *prng = crypto_rng_ctx(tfm);
return get_prng_bytes(rdata, dlen, prng, 1);
}
/*
* This is the cprng_registered reset method the seed value is
* interpreted as the tuple { V KEY DT}
@ -390,26 +382,6 @@ static int cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen)
return 0;
}
static int fips_cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen)
{
u8 rdata[DEFAULT_BLK_SZ];
int rc;
struct prng_context *prng = crypto_rng_ctx(tfm);
rc = cprng_reset(tfm, seed, slen);
if (!rc)
goto out;
/* this primes our continuity test */
rc = get_prng_bytes(rdata, DEFAULT_BLK_SZ, prng, 0);
prng->rand_data_valid = DEFAULT_BLK_SZ;
out:
return rc;
}
static struct crypto_alg rng_alg = {
.cra_name = "stdrng",
.cra_driver_name = "ansi_cprng",
@ -431,6 +403,34 @@ static struct crypto_alg rng_alg = {
};
#ifdef CONFIG_CRYPTO_FIPS
static int fips_cprng_get_random(struct crypto_rng *tfm, u8 *rdata,
unsigned int dlen)
{
struct prng_context *prng = crypto_rng_ctx(tfm);
return get_prng_bytes(rdata, dlen, prng, 1);
}
static int fips_cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen)
{
u8 rdata[DEFAULT_BLK_SZ];
int rc;
struct prng_context *prng = crypto_rng_ctx(tfm);
rc = cprng_reset(tfm, seed, slen);
if (!rc)
goto out;
/* this primes our continuity test */
rc = get_prng_bytes(rdata, DEFAULT_BLK_SZ, prng, 0);
prng->rand_data_valid = DEFAULT_BLK_SZ;
out:
return rc;
}
static struct crypto_alg fips_rng_alg = {
.cra_name = "fips(ansi_cprng)",
.cra_driver_name = "fips_ansi_cprng",