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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-12-16 02:04:49 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-12-16 02:04:49 -0800 |
| commit | 348324c5b10bcba8d9daabdfb85a6927311be34f (patch) | |
| tree | d06ca3a264407a14a1f36c1b798d6dc0dc1582d8 /net/core/secure_seq.c | |
| parent | 1e63bd9cc43db5400a1423a7ec8266b4e7c54bd0 (diff) | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
Merge tag 'v3.13-rc4' into next
Synchronize with mainline to bring in the new keycode definitions and
new hwmon API.
Diffstat (limited to 'net/core/secure_seq.c')
| -rw-r--r-- | net/core/secure_seq.c | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c index 3f1ec1586ae..897da56f3af 100644 --- a/net/core/secure_seq.c +++ b/net/core/secure_seq.c @@ -7,28 +7,20 @@ #include <linux/hrtimer.h> #include <linux/ktime.h> #include <linux/string.h> +#include <linux/net.h> #include <net/secure_seq.h> +#if IS_ENABLED(CONFIG_IPV6) || IS_ENABLED(CONFIG_INET) #define NET_SECRET_SIZE (MD5_MESSAGE_BYTES / 4) static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned; -static void net_secret_init(void) +static __always_inline void net_secret_init(void) { - u32 tmp; - int i; - - if (likely(net_secret[0])) - return; - - for (i = NET_SECRET_SIZE; i > 0;) { - do { - get_random_bytes(&tmp, sizeof(tmp)); - } while (!tmp); - cmpxchg(&net_secret[--i], 0, tmp); - } + net_get_random_once(net_secret, sizeof(net_secret)); } +#endif #ifdef CONFIG_INET static u32 seq_scale(u32 seq) |