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authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 17:15:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 17:15:23 -0800
commit50d9a126240f9961cfdd063336bbeb91f77a7dce (patch)
tree7e9c306cc49ad11e9e23cd4616591f323d9ff5cc
parentMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 (diff)
parent[CRYPTO] hifn795x: Disallow built-in hifn795x when HW_RANDOM is m (diff)
downloadlinux-dev-50d9a126240f9961cfdd063336bbeb91f77a7dce.tar.xz
linux-dev-50d9a126240f9961cfdd063336bbeb91f77a7dce.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: [CRYPTO] hifn795x: Disallow built-in hifn795x when HW_RANDOM is m
-rw-r--r--drivers/crypto/Kconfig8
-rw-r--r--drivers/crypto/hifn_795x.c6
2 files changed, 10 insertions, 4 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 74bd599dfb0c..8a70a9edabda 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -88,10 +88,16 @@ config CRYPTO_DEV_HIFN_795X
select CRYPTO_DES
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
+ select HW_RANDOM if CRYPTO_DEV_HIFN_795X_RNG
depends on PCI
help
This option allows you to have support for HIFN 795x crypto adapters.
-
+config CRYPTO_DEV_HIFN_795X_RNG
+ bool "HIFN 795x random number generator"
+ depends on CRYPTO_DEV_HIFN_795X
+ help
+ Select this option if you want to enable the random number generator
+ on the HIFN 795x crypto adapters.
endif # CRYPTO_HW
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();