Messages in this thread Patch in this message | | | From | Arvind Sankar <> | Subject | [PATCH 1/3] x86/mm: Drop unused MAX_PHYSADDR_BITS | Date | Thu, 23 Jul 2020 19:15:42 -0400 |
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The macro is not used anywhere, and has an incorrect value (going by the comment) on x86_64 since commit c898faf91b3e ("x86: 46 bit physical address support on 64 bits")
To avoid confusion, just remove the definition.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> --- arch/x86/include/asm/sparsemem.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/arch/x86/include/asm/sparsemem.h b/arch/x86/include/asm/sparsemem.h index 199218719a86..6bfc878f6771 100644 --- a/arch/x86/include/asm/sparsemem.h +++ b/arch/x86/include/asm/sparsemem.h @@ -10,24 +10,20 @@ * field of the struct page * * SECTION_SIZE_BITS 2^n: size of each section - * MAX_PHYSADDR_BITS 2^n: max size of physical address space - * MAX_PHYSMEM_BITS 2^n: how much memory we can have in that space + * MAX_PHYSMEM_BITS 2^n: max size of physical address space * */ #ifdef CONFIG_X86_32 # ifdef CONFIG_X86_PAE # define SECTION_SIZE_BITS 29 -# define MAX_PHYSADDR_BITS 36 # define MAX_PHYSMEM_BITS 36 # else # define SECTION_SIZE_BITS 26 -# define MAX_PHYSADDR_BITS 32 # define MAX_PHYSMEM_BITS 32 # endif #else /* CONFIG_X86_32 */ # define SECTION_SIZE_BITS 27 /* matt - 128 is convenient right now */ -# define MAX_PHYSADDR_BITS (pgtable_l5_enabled() ? 52 : 44) # define MAX_PHYSMEM_BITS (pgtable_l5_enabled() ? 52 : 46) #endif -- 2.26.2
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