aboutsummaryrefslogtreecommitdiff
path: root/drivers/crypto/hifn_795x.c
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2008-01-26 09:48:44 +1100
committerHerbert Xu <herbert@gondor.apana.org.au>2008-01-26 09:48:44 +1100
commit946fef4e14ebc2f14ab05f54789843621fe87f60 (patch)
treef883bbadbac017ac46e00d8da528b50b78c1318d /drivers/crypto/hifn_795x.c
parent2d94dfc8c38edf63e91e48fd55c3a8822b6a9ced (diff)
downloadlinux-linaro-stable-946fef4e14ebc2f14ab05f54789843621fe87f60.tar.gz
[CRYPTO] hifn795x: Disallow built-in hifn795x when HW_RANDOM is m
Currently it is possible to select HW_RANDOM as a module and have hifn795x built-in. This causes a build problem because hifn795x will then call hwrng_register which isn't built-in. This patch introduces a new config option to control the hifn795x RNG which lets us avoid this problem. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/hifn_795x.c')
-rw-r--r--drivers/crypto/hifn_795x.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index 16413e57597c..dfbf24c4033c 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -463,7 +463,7 @@ struct hifn_device
unsigned int pk_clk_freq;
-#if defined(CONFIG_HW_RANDOM) || defined(CONFIG_HW_RANDOM_MODULE)
+#ifdef CRYPTO_DEV_HIFN_795X_RNG
unsigned int rng_wait_time;
ktime_t rngtime;
struct hwrng rng;
@@ -795,7 +795,7 @@ static struct pci2id {
}
};
-#if defined(CONFIG_HW_RANDOM) || defined(CONFIG_HW_RANDOM_MODULE)
+#ifdef CRYPTO_DEV_HIFN_795X_RNG
static int hifn_rng_data_present(struct hwrng *rng, int wait)
{
struct hifn_device *dev = (struct hifn_device *)rng->priv;
@@ -880,7 +880,7 @@ static int hifn_init_pubrng(struct hifn_device *dev)
dprintk("Chip %s: RNG engine has been successfully initialised.\n",
dev->name);
-#if defined(CONFIG_HW_RANDOM) || defined(CONFIG_HW_RANDOM_MODULE)
+#ifdef CRYPTO_DEV_HIFN_795X_RNG
/* First value must be discarded */
hifn_read_1(dev, HIFN_1_RNG_DATA);
dev->rngtime = ktime_get();