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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2017-03-24 21:58:58 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-03-24 21:58:58 +0800 |
| commit | 2e6d603e5163e6f32a8686744b4d53e8778957ba (patch) | |
| tree | ead238ea5efe7b3f52728793fe9dfa76ca52bc31 /include/linux/jump_label.h | |
| parent | 28845b079b9611b3082aa53e2dae2ea10a16a1c2 (diff) | |
| parent | 97da3854c526d3a6ee05c849c96e48d21527606c (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Merging 4.11-rc3 to pick up md5 removal from /dev/random.
Diffstat (limited to 'include/linux/jump_label.h')
| -rw-r--r-- | include/linux/jump_label.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index 8e06d758ee48..2afd74b9d844 100644 --- a/include/linux/jump_label.h +++ b/include/linux/jump_label.h @@ -90,6 +90,13 @@ extern bool static_key_initialized; struct static_key { atomic_t enabled; /* + * Note: + * To make anonymous unions work with old compilers, the static + * initialization of them requires brackets. This creates a dependency + * on the order of the struct with the initializers. If any fields + * are added, STATIC_KEY_INIT_TRUE and STATIC_KEY_INIT_FALSE may need + * to be modified. + * * bit 0 => 1 if key is initially true * 0 if initially false * bit 1 => 1 if points to struct static_key_mod @@ -166,10 +173,10 @@ extern void static_key_disable(struct static_key *key); */ #define STATIC_KEY_INIT_TRUE \ { .enabled = { 1 }, \ - .entries = (void *)JUMP_TYPE_TRUE } + { .entries = (void *)JUMP_TYPE_TRUE } } #define STATIC_KEY_INIT_FALSE \ { .enabled = { 0 }, \ - .entries = (void *)JUMP_TYPE_FALSE } + { .entries = (void *)JUMP_TYPE_FALSE } } #else /* !HAVE_JUMP_LABEL */ |