From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Subject: unicore32: stop printing the virtual memory layout
Since ad67b74d2469d9b8 ("printk: hash addresses printed with %p"), the
virtual memory layout printed during boot up contains "ptrval" instead of
actual addresses.
Instead of changing the printing to "%px", and leaking virtual memory
layout information again, just remove the printing completely, cfr. e.g.
071929dbdd865f77 ("arm64: Stop printing the virtual memory layout") and
31833332f7987636 ("m68k/mm: Stop printing the virtual memory layout").
All interesting information (actual section sizes) is already printed by
mem_init_print_info() just above anyway.
Link: http://lkml.kernel.org/r/20190121152254.29079-1-geert+renesas@xxxxxxxxx
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Guan Xuetao <gxt@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/arch/unicore32/mm/init.c~unicore32-stop-printing-the-virtual-memory-layout
+++ a/arch/unicore32/mm/init.c
@@ -274,30 +274,6 @@ void __init mem_init(void)
memblock_free_all();
mem_init_print_info(NULL);
- printk(KERN_NOTICE "Virtual kernel memory layout:\n"
- " vector : 0x%08lx - 0x%08lx (%4ld kB)\n"
- " vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " modules : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " .init : 0x%p" " - 0x%p" " (%4d kB)\n"
- " .text : 0x%p" " - 0x%p" " (%4d kB)\n"
- " .data : 0x%p" " - 0x%p" " (%4d kB)\n",
-
- VECTORS_BASE, VECTORS_BASE + PAGE_SIZE,
- DIV_ROUND_UP(PAGE_SIZE, SZ_1K),
- VMALLOC_START, VMALLOC_END,
- DIV_ROUND_UP((VMALLOC_END - VMALLOC_START), SZ_1M),
- PAGE_OFFSET, (unsigned long)high_memory,
- DIV_ROUND_UP(((unsigned long)high_memory - PAGE_OFFSET), SZ_1M),
- MODULES_VADDR, MODULES_END,
- DIV_ROUND_UP((MODULES_END - MODULES_VADDR), SZ_1M),
-
- __init_begin, __init_end,
- DIV_ROUND_UP((__init_end - __init_begin), SZ_1K),
- _stext, _etext,
- DIV_ROUND_UP((_etext - _stext), SZ_1K),
- _sdata, _edata,
- DIV_ROUND_UP((_edata - _sdata), SZ_1K));
BUILD_BUG_ON(TASK_SIZE > MODULES_VADDR);
BUG_ON(TASK_SIZE > MODULES_VADDR);
_
