Re: [PATCH 3/3] mm, arch: add generic implementation of pfn_valid() for FLATMEM
From: Stafford Horne <shorne@gmail.com>
Date: 2023-01-28 09:02:23
Also in:
linux-alpha, linux-arch, linux-m68k, linux-mips, linux-riscv, linux-sh, linux-um, lkml, loongarch, sparclinux
On Wed, Jan 25, 2023 at 09:07:57PM +0200, Mike Rapoport wrote:
From: "Mike Rapoport (IBM)" <rppt@kernel.org> Every architecture that supports FLATMEM memory model defines its own version of pfn_valid() that essentially compares a pfn to max_mapnr. Use mips/powerpc version implemented as static inline as a generic implementation of pfn_valid() and drop its per-architecture definitions Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org> --- arch/alpha/include/asm/page.h | 4 ---- arch/arc/include/asm/page.h | 1 - arch/csky/include/asm/page.h | 1 - arch/hexagon/include/asm/page.h | 1 - arch/ia64/include/asm/page.h | 4 ---- arch/loongarch/include/asm/page.h | 13 ------------- arch/m68k/include/asm/page_no.h | 2 -- arch/microblaze/include/asm/page.h | 1 - arch/mips/include/asm/page.h | 13 ------------- arch/nios2/include/asm/page.h | 9 --------- arch/openrisc/include/asm/page.h | 2 -- arch/parisc/include/asm/page.h | 4 ---- arch/powerpc/include/asm/page.h | 9 --------- arch/riscv/include/asm/page.h | 5 ----- arch/sh/include/asm/page.h | 3 --- arch/sparc/include/asm/page_32.h | 1 - arch/um/include/asm/page.h | 1 - arch/x86/include/asm/page_32.h | 4 ---- arch/x86/include/asm/page_64.h | 4 ---- arch/xtensa/include/asm/page.h | 2 -- include/asm-generic/memory_model.h | 12 ++++++++++++ include/asm-generic/page.h | 2 -- 22 files changed, 12 insertions(+), 86 deletions(-)
[...]
quoted hunk ↗ jump to hunk
diff --git a/arch/openrisc/include/asm/page.h b/arch/openrisc/include/asm/page.h index aab6e64d6db4..52b0d7e76446 100644 --- a/arch/openrisc/include/asm/page.h +++ b/arch/openrisc/include/asm/page.h@@ -80,8 +80,6 @@ typedef struct page *pgtable_t; #define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT) -#define pfn_valid(pfn) ((pfn) < max_mapnr) - #define virt_addr_valid(kaddr) (pfn_valid(virt_to_pfn(kaddr))) #endif /* __ASSEMBLY__ */
For OpenRISC Acked-by: Stafford Horne <shorne@gmail.com>