[167/181] riscv: drop unneeded node initialization

Commit Message

Andrew Morton Oct. 13, 2020, 11:57 p.m. UTC

From: Mike Rapoport <[e-mail]>
Subject: riscv: drop unneeded node initialization

RISC-V does not (yet) support NUMA and for UMA architectures node 0 is
used implicitly during early memory initialization.

There is no need to call memblock_set_node(), remove this call and the
surrounding code.

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Mike Rapoport <[e-mail]>
Cc: Andy Lutomirski <[e-mail]>
Cc: Baoquan He <[e-mail]>
Cc: Benjamin Herrenschmidt <[e-mail]>
Cc: Borislav Petkov <[e-mail]>
Cc: Catalin Marinas <[e-mail]>
Cc: Christoph Hellwig <[e-mail]>
Cc: Daniel Axtens <[e-mail]>
Cc: Dave Hansen <[e-mail]>
Cc: Emil Renner Berthing <[e-mail]>
Cc: Hari Bathini <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Jonathan Cameron <[e-mail]>
Cc: Marek Szyprowski <[e-mail]>
Cc: Max Filippov <[e-mail]>
Cc: Michael Ellerman <[e-mail]>
Cc: Michal Simek <[e-mail]>
Cc: Miguel Ojeda <[e-mail]>
Cc: Palmer Dabbelt <[e-mail]>
Cc: Paul Mackerras <[e-mail]>
Cc: Paul Walmsley <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Russell King <[e-mail]>
Cc: Stafford Horne <[e-mail]>
Cc: Thomas Bogendoerfer <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: Will Deacon <[e-mail]>
Cc: Yoshinori Sato <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 arch/riscv/mm/init.c |    9 ---------
 1 file changed, 9 deletions(-)

Patch

--- a/arch/riscv/mm/init.c~riscv-drop-unneeded-node-initialization
+++ a/arch/riscv/mm/init.c
@@ -191,15 +191,6 @@  void __init setup_bootmem(void)
 	early_init_fdt_scan_reserved_mem();
 	memblock_allow_resize();
 	memblock_dump_all();
-
-	for_each_memblock(memory, reg) {
-		unsigned long start_pfn = memblock_region_memory_base_pfn(reg);
-		unsigned long end_pfn = memblock_region_memory_end_pfn(reg);
-
-		memblock_set_node(PFN_PHYS(start_pfn),
-				  PFN_PHYS(end_pfn - start_pfn),
-				  &memblock.memory, 0);
-	}
 }
 
 #ifdef CONFIG_MMU