[PATCH net-next 1/3] once: use __section(".data.once")
From: Eric Dumazet <hidden>
Date: 2021-11-15 17:43:04
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Eric Dumazet <edumazet@google.com> .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> --- include/linux/once.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/once.h b/include/linux/once.h
index d361fb14ac3a2c5b77c289107f093862194ebd1c..f54523052bbcb5d0c13017d4684b68ceb8da5855 100644
--- a/include/linux/once.h
+++ b/include/linux/once.h@@ -38,7 +38,7 @@ void __do_once_done(bool *done, struct static_key_true *once_key, #define DO_ONCE(func, ...) \ ({ \ bool ___ret = false; \ - static bool ___done = false; \ + static bool __section(".data.once") ___done = false; \ static DEFINE_STATIC_KEY_TRUE(___once_key); \ if (static_branch_unlikely(&___once_key)) { \ unsigned long ___flags; \
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2.34.0.rc1.387.gb447b232ab-goog