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runtime constants: move list of constants to vmlinux.lds.h

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Refactor the list of constant variables into a macro.
This should make it easier to add more constants in the future.

Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Jann Horn 2024-07-30 22:15:16 +02:00 committed by Arnd Bergmann
parent 7193b5c475
commit 92a10d3861
4 changed files with 7 additions and 6 deletions
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3
arch/arm64/kernel/vmlinux.lds.S
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@ -264,8 +264,7 @@ SECTIONS
EXIT_DATA
}
RUNTIME_CONST(shift, d_hash_shift)
RUNTIME_CONST(ptr, dentry_hashtable)
RUNTIME_CONST_VARIABLES
PERCPU_SECTION(L1_CACHE_BYTES)
HYPERVISOR_PERCPU_SECTION

3
arch/s390/kernel/vmlinux.lds.S
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@ -191,8 +191,7 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
INIT_DATA_SECTION(0x100)
RUNTIME_CONST(shift, d_hash_shift)
RUNTIME_CONST(ptr, dentry_hashtable)
RUNTIME_CONST_VARIABLES
PERCPU_SECTION(0x100)

3
arch/x86/kernel/vmlinux.lds.S
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@ -357,8 +357,7 @@ SECTIONS
PERCPU_SECTION(INTERNODE_CACHE_BYTES)
#endif
RUNTIME_CONST(shift, d_hash_shift)
RUNTIME_CONST(ptr, dentry_hashtable)
RUNTIME_CONST_VARIABLES
. = ALIGN(PAGE_SIZE);

4
include/asm-generic/vmlinux.lds.h
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@ -918,6 +918,10 @@
#define RUNTIME_CONST(t,x) NAMED_SECTION(runtime_##t##_##x)
#define RUNTIME_CONST_VARIABLES \
RUNTIME_CONST(shift, d_hash_shift) \
RUNTIME_CONST(ptr, dentry_hashtable)
/* Alignment must be consistent with (kunit_suite *) in include/kunit/test.h */
#define KUNIT_TABLE() \
. = ALIGN(8); \