Messages in this thread Patch in this message |  | | Date | Tue, 29 Sep 2020 12:25:49 -0700 | Subject | [PATCH v2] srcu: avoid escaped section names | From | Nick Desaulniers <> |
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The stringification operator, `#`, in the preprocessor escapes strings. For example, `# "foo"` becomes `"\"foo\""`. GCC and Clang differ in how they treat section names that contain \".
The portable solution is to not use a string literal with the preprocessor stringification operator.
Link: https://bugs.llvm.org/show_bug.cgi?id=42950 Fixes: commit fe15b50cdeee ("srcu: Allocate per-CPU data for DEFINE_SRCU() in modules") Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> --- Changes V1->V2: * drop unrelated Kconfig changes accidentally committed in v1.
include/linux/srcutree.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/srcutree.h b/include/linux/srcutree.h index 9cfcc8a756ae..9de652f4e1bd 100644 --- a/include/linux/srcutree.h +++ b/include/linux/srcutree.h @@ -124,7 +124,7 @@ struct srcu_struct { # define __DEFINE_SRCU(name, is_static) \ is_static struct srcu_struct name; \ struct srcu_struct * const __srcu_struct_##name \ - __section("___srcu_struct_ptrs") = &name + __section(___srcu_struct_ptrs) = &name #else # define __DEFINE_SRCU(name, is_static) \ static DEFINE_PER_CPU(struct srcu_data, name##_srcu_data); \ -- 2.28.0.709.gb0816b6eb0-goog
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