Messages in this thread Patch in this message | | | From | Geert Uytterhoeven <> | Subject | [PATCH 4/4] m68knommu: Add missing initialization of max_pfn and {min,max}_low_pfn | Date | Sun, 15 Nov 2015 12:04:15 +0100 |
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If max_pfn is not initialized, the block layer may use wrong DMA masks.
Replace open-coded shifts by PFN_DOWN() while we're at it.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> --- Compile-tested only. --- arch/m68k/kernel/setup_no.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c index 88c27d94a7214c95..29b44e69f0f47375 100644 --- a/arch/m68k/kernel/setup_no.c +++ b/arch/m68k/kernel/setup_no.c @@ -238,11 +238,14 @@ void __init setup_arch(char **cmdline_p) * Give all the memory to the bootmap allocator, tell it to put the * boot mem_map at the start of memory. */ + min_low_pfn = PFN_DOWN(memory_start); + max_pfn = max_low_pfn = PFN_DOWN(memory_end); + bootmap_size = init_bootmem_node( NODE_DATA(0), - memory_start >> PAGE_SHIFT, /* map goes here */ - PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ - memory_end >> PAGE_SHIFT); + min_low_pfn, /* map goes here */ + PFN_DOWN(PAGE_OFFSET), /* 0 on coldfire */ + max_pfn); /* * Free the usable memory, we have to make sure we do not free * the bootmem bitmap so we then reserve it after freeing it :-) -- 1.9.1
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