From 0a787b28b7a375ad9d5c77bc3922ae1a8305239e Mon Sep 17 00:00:00 2001 From: Arvind Sankar Date: Thu, 23 Jul 2020 19:15:42 -0400 Subject: [PATCH] x86/mm: Drop unused MAX_PHYSADDR_BITS 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 Signed-off-by: Thomas Gleixner Link: https://lkml.kernel.org/r/20200723231544.17274-2-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