From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arvind Sankar Date: Thu, 23 Jul 2020 23:15:42 +0000 Subject: [PATCH 1/3] x86/mm: Drop unused MAX_PHYSADDR_BITS Message-Id: <20200723231544.17274-2-nivedita@alum.mit.edu> List-Id: References: <20200723231544.17274-1-nivedita@alum.mit.edu> In-Reply-To: <20200723231544.17274-1-nivedita@alum.mit.edu> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: x86@kernel.org, Dave Hansen , Andy Lutomirski , Peter Zijlstra , linux-sh@vger.kernel.org, Yoshinori Sato , Rich Felker , sparclinux@vger.kernel.org, "David S. Miller" Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org 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 --- 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