Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
percpu: Remove PERCPU_VADDR()
x86-64 was the last user.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250123190747.745588-14-brgerst@gmail.com
authored by
Brian Gerst
and committed by
Ingo Molnar
e23cff68
95b09161
+1
-35
+1
-35
include/asm-generic/vmlinux.lds.h
+1
-35
include/asm-generic/vmlinux.lds.h
···
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__per_cpu_end = .;
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/**
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* PERCPU_VADDR - define output section for percpu area
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+
* PERCPU_SECTION - define output section for percpu area
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* @cacheline: cacheline size
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* @vaddr: explicit base address (optional)
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* @phdr: destination PHDR (optional)
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*
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* Macro which expands to output section for percpu area.
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*
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* @cacheline is used to align subsections to avoid false cacheline
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* sharing between subsections for different purposes.
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*
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* If @vaddr is not blank, it specifies explicit base address and all
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* percpu symbols will be offset from the given address. If blank,
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* @vaddr always equals @laddr + LOAD_OFFSET.
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*
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* @phdr defines the output PHDR to use if not blank. Be warned that
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* output PHDR is sticky. If @phdr is specified, the next output
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* section in the linker script will go there too. @phdr should have
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* a leading colon.
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*
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* Note that this macros defines __per_cpu_load as an absolute symbol.
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* If there is no need to put the percpu section at a predetermined
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* address, use PERCPU_SECTION.
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*/
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#define PERCPU_VADDR(cacheline, vaddr, phdr) \
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__per_cpu_load = .; \
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.data..percpu vaddr : AT(__per_cpu_load - LOAD_OFFSET) { \
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PERCPU_INPUT(cacheline) \
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} phdr \
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. = __per_cpu_load + SIZEOF(.data..percpu);
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/**
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* PERCPU_SECTION - define output section for percpu area, simple version
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* @cacheline: cacheline size
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*
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* Align to PAGE_SIZE and outputs output section for percpu area. This
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* macro doesn't manipulate @vaddr or @phdr and __per_cpu_load and
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* __per_cpu_start will be identical.
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*
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* This macro is equivalent to ALIGN(PAGE_SIZE); PERCPU_VADDR(@cacheline,,)
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* except that __per_cpu_load is defined as a relative symbol against
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* .data..percpu which is required for relocatable x86_32 configuration.
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*/
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#define PERCPU_SECTION(cacheline) \
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. = ALIGN(PAGE_SIZE); \