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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-07-30 00:13:24 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-07-30 00:13:24 +0200 |
| commit | 4b979e4c611ce750d32b51737f837b485f43c69b (patch) | |
| tree | 3bc56f2a22d2cf29bc183b67e74e1e8c0733efc0 /drivers/s390/crypto/zcrypt_api.c | |
| parent | xtensa/irq: Use access helper irq_data_get_affinity_mask() (diff) | |
| parent | Linux 4.2-rc4 (diff) | |
| download | linux-4b979e4c611ce750d32b51737f837b485f43c69b.tar.xz linux-4b979e4c611ce750d32b51737f837b485f43c69b.zip | |
Merge branch 'linus' into irq/core
Pull in upstream fixes before applying conflicting changes
Diffstat (limited to 'drivers/s390/crypto/zcrypt_api.c')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_api.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index 08f1830cbfc4..01bf1f5cf2e9 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -54,6 +54,10 @@ MODULE_DESCRIPTION("Cryptographic Coprocessor interface, " \ "Copyright IBM Corp. 2001, 2012"); MODULE_LICENSE("GPL"); +static int zcrypt_hwrng_seed = 1; +module_param_named(hwrng_seed, zcrypt_hwrng_seed, int, S_IRUSR|S_IRGRP); +MODULE_PARM_DESC(hwrng_seed, "Turn on/off hwrng auto seed, default is 1 (on)."); + static DEFINE_SPINLOCK(zcrypt_device_lock); static LIST_HEAD(zcrypt_device_list); static int zcrypt_device_count = 0; @@ -1373,6 +1377,7 @@ static int zcrypt_rng_data_read(struct hwrng *rng, u32 *data) static struct hwrng zcrypt_rng_dev = { .name = "zcrypt", .data_read = zcrypt_rng_data_read, + .quality = 990, }; static int zcrypt_rng_device_add(void) @@ -1387,6 +1392,8 @@ static int zcrypt_rng_device_add(void) goto out; } zcrypt_rng_buffer_index = 0; + if (!zcrypt_hwrng_seed) + zcrypt_rng_dev.quality = 0; rc = hwrng_register(&zcrypt_rng_dev); if (rc) goto out_free; |