Messages in this thread Patch in this message | | | From | Alexandre Ghiti <> | Subject | [PATCH -fixes] riscv: Fix comment regarding kernel mapping overlapping with IS_ERR_VALUE | Date | Mon, 26 Jul 2021 07:42:54 +0200 |
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The current comment states that we check if the 64-bit kernel mapping overlaps with the last 4K of the address space that is reserved to error values in create_kernel_page_table, which is not the case since it is done in setup_vm. But anyway, remove the reference to any function and simply note that in 64-bit kernel, the check should be done as soon as the kernel mapping base address is known.
Fixes: db6b84a368b4 ("riscv: Make sure the kernel mapping does not overlap with IS_ERR_VALUE") Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> --- arch/riscv/mm/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index a14bf3910eec..79a2e02924e4 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -191,7 +191,7 @@ static void __init setup_bootmem(void) * if end of dram is equal to maximum addressable memory. For 64-bit * kernel, this problem can't happen here as the end of the virtual * address space is occupied by the kernel mapping then this check must - * be done in create_kernel_page_table. + * be done as soon as the kernel mapping base address is determined. */ max_mapped_addr = __pa(~(ulong)0); if (max_mapped_addr == (dram_end - 1)) -- 2.30.2
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