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| author | Ingo Molnar <mingo@kernel.org> | 2020-04-13 09:44:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-04-13 09:44:39 +0200 |
| commit | 3b02a051d25d9600e9d403ad3043aed7de00160e (patch) | |
| tree | 5b8f58b79328c04654bf5ab6286401057edeca8f /lib/uuid.c | |
| parent | kcsan, trace: Make KCSAN compatible with tracing (diff) | |
| parent | Linux 5.7-rc1 (diff) | |
| download | linux-3b02a051d25d9600e9d403ad3043aed7de00160e.tar.xz linux-3b02a051d25d9600e9d403ad3043aed7de00160e.zip | |
Merge tag 'v5.7-rc1' into locking/kcsan, to resolve conflicts and refresh
Resolve these conflicts:
arch/x86/Kconfig
arch/x86/kernel/Makefile
Do a minor "evil merge" to move the KCSAN entry up a bit by a few lines
in the Kconfig to reduce the probability of future conflicts.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/uuid.c')
| -rw-r--r-- | lib/uuid.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/uuid.c b/lib/uuid.c index b6a1edb61d87..562d53977cab 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -40,6 +40,16 @@ void generate_random_uuid(unsigned char uuid[16]) } EXPORT_SYMBOL(generate_random_uuid); +void generate_random_guid(unsigned char guid[16]) +{ + get_random_bytes(guid, 16); + /* Set GUID version to 4 --- truly random generation */ + guid[7] = (guid[7] & 0x0F) | 0x40; + /* Set the GUID variant to DCE */ + guid[8] = (guid[8] & 0x3F) | 0x80; +} +EXPORT_SYMBOL(generate_random_guid); + static void __uuid_gen_common(__u8 b[16]) { prandom_bytes(b, 16); |