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once: use __section(".data.once")

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.data.once contains nicely packed bool variables.
It is used already by DO_ONCE_LITE().

Using it also in DO_ONCE() removes holes in .data section.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2021-11-15 09:23:01 -08:00 committed by Jakub Kicinski
parent 62803fec52
commit c2c60ea37e
1 changed files with 1 additions and 1 deletions
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include/linux/once.h
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@ -38,7 +38,7 @@ void __do_once_done(bool *done, struct static_key_true *once_key,
#define DO_ONCE(func, ...) \ #define DO_ONCE(func, ...) \
({ \ ({ \
bool ___ret = false; \ bool ___ret = false; \
static bool ___done = false; \ static bool __section(".data.once") ___done = false; \
static DEFINE_STATIC_KEY_TRUE(___once_key); \ static DEFINE_STATIC_KEY_TRUE(___once_key); \
if (static_branch_unlikely(&___once_key)) { \ if (static_branch_unlikely(&___once_key)) { \
unsigned long ___flags; \ unsigned long ___flags; \