diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-27 09:26:46 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-27 09:26:46 -0700 |
commit | 15c54033964a943de7b0763efd3bd0ede7326395 (patch) | |
tree | 840b292612d1b5396d5bab5bde537a9013db3ceb /drivers/char/random.c | |
parent | ad5da3cf39a5b11a198929be1f2644e17ecd767e (diff) | |
parent | 912a41a4ab935ce8c4308428ec13fc7f8b1f18f4 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (448 commits)
[IPV4] nl_fib_lookup: Initialise res.r before fib_res_put(&res)
[IPV6]: Fix thinko in ipv6_rthdr_rcv() changes.
[IPV4]: Add multipath cached to feature-removal-schedule.txt
[WIRELESS] cfg80211: Clarify locking comment.
[WIRELESS] cfg80211: Fix locking in wiphy_new.
[WEXT] net_device: Don't include wext bits if not required.
[WEXT]: Misc code cleanups.
[WEXT]: Reduce inline abuse.
[WEXT]: Move EXPORT_SYMBOL statements where they belong.
[WEXT]: Cleanup early ioctl call path.
[WEXT]: Remove options.
[WEXT]: Remove dead debug code.
[WEXT]: Clean up how wext is called.
[WEXT]: Move to net/wireless
[AFS]: Eliminate cmpxchg() usage in vlocation code.
[RXRPC]: Fix pointers passed to bitops.
[RXRPC]: Remove bogus atomic_* overrides.
[AFS]: Fix u64 printing in debug logging.
[AFS]: Add "directory write" support.
[AFS]: Implement the CB.InitCallBackState3 operation.
...
Diffstat (limited to 'drivers/char/random.c')
-rw-r--r-- | drivers/char/random.c | 38 |
1 files changed, 13 insertions, 25 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index b9dc7aa1dfb..46c1b97748b 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -881,15 +881,15 @@ EXPORT_SYMBOL(get_random_bytes); */ static void init_std_data(struct entropy_store *r) { - struct timeval tv; + ktime_t now; unsigned long flags; spin_lock_irqsave(&r->lock, flags); r->entropy_count = 0; spin_unlock_irqrestore(&r->lock, flags); - do_gettimeofday(&tv); - add_entropy_words(r, (__u32 *)&tv, sizeof(tv)/4); + now = ktime_get_real(); + add_entropy_words(r, (__u32 *)&now, sizeof(now)/4); add_entropy_words(r, (__u32 *)utsname(), sizeof(*(utsname()))/4); } @@ -911,14 +911,12 @@ void rand_initialize_irq(int irq) return; /* - * If kmalloc returns null, we just won't use that entropy + * If kzalloc returns null, we just won't use that entropy * source. */ - state = kmalloc(sizeof(struct timer_rand_state), GFP_KERNEL); - if (state) { - memset(state, 0, sizeof(struct timer_rand_state)); + state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL); + if (state) irq_timer_state[irq] = state; - } } #ifdef CONFIG_BLOCK @@ -927,14 +925,12 @@ void rand_initialize_disk(struct gendisk *disk) struct timer_rand_state *state; /* - * If kmalloc returns null, we just won't use that entropy + * If kzalloc returns null, we just won't use that entropy * source. */ - state = kmalloc(sizeof(struct timer_rand_state), GFP_KERNEL); - if (state) { - memset(state, 0, sizeof(struct timer_rand_state)); + state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL); + if (state) disk->random = state; - } } #endif @@ -1469,7 +1465,6 @@ late_initcall(seqgen_init); __u32 secure_tcpv6_sequence_number(__be32 *saddr, __be32 *daddr, __be16 sport, __be16 dport) { - struct timeval tv; __u32 seq; __u32 hash[12]; struct keydata *keyptr = get_keyptr(); @@ -1485,8 +1480,7 @@ __u32 secure_tcpv6_sequence_number(__be32 *saddr, __be32 *daddr, seq = twothirdsMD4Transform((const __u32 *)daddr, hash) & HASH_MASK; seq += keyptr->count; - do_gettimeofday(&tv); - seq += tv.tv_usec + tv.tv_sec * 1000000; + seq += ktime_get_real().tv64; return seq; } @@ -1521,7 +1515,6 @@ __u32 secure_ip_id(__be32 daddr) __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport) { - struct timeval tv; __u32 seq; __u32 hash[4]; struct keydata *keyptr = get_keyptr(); @@ -1543,12 +1536,11 @@ __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, * As close as possible to RFC 793, which * suggests using a 250 kHz clock. * Further reading shows this assumes 2 Mb/s networks. - * For 10 Mb/s Ethernet, a 1 MHz clock is appropriate. + * For 10 Gb/s Ethernet, a 1 GHz clock is appropriate. * That's funny, Linux has one built in! Use it! * (Networks are faster now - should this be increased?) */ - do_gettimeofday(&tv); - seq += tv.tv_usec + tv.tv_sec * 1000000; + seq += ktime_get_real().tv64; #if 0 printk("init_seq(%lx, %lx, %d, %d) = %d\n", saddr, daddr, sport, dport, seq); @@ -1556,8 +1548,6 @@ __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, return seq; } -EXPORT_SYMBOL(secure_tcp_sequence_number); - /* Generate secure starting point for ephemeral IPV4 transport port search */ u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport) { @@ -1598,7 +1588,6 @@ u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr, __be16 u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport) { - struct timeval tv; u64 seq; __u32 hash[4]; struct keydata *keyptr = get_keyptr(); @@ -1611,8 +1600,7 @@ u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr, seq = half_md4_transform(hash, keyptr->secret); seq |= ((u64)keyptr->count) << (32 - HASH_BITS); - do_gettimeofday(&tv); - seq += tv.tv_usec + tv.tv_sec * 1000000; + seq += ktime_get_real().tv64; seq &= (1ull << 48) - 1; #if 0 printk("dccp init_seq(%lx, %lx, %d, %d) = %d\n", |