Commit c70fe14f authored May 18, 2021 by Dong Aisheng Committed by Will Deacon Jun 15, 2021

arm64: mm: fix the count comments in compute_indices



'count - 1' is confusing and not comply with the real code running.
'count' actually represents the extra entries required, no need minus 1.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210518101405.1048860-3-aisheng.dong@nxp.com


Signed-off-by: Will Deacon <will@kernel.org>

parent 9163f011

arch/arm64/kernel/head.S

+1 −1

Original line number	Diff line number	Diff line
		@@ -195,7 +195,7 @@ SYM_CODE_END(preserve_boot_args)
		and \iend, \iend, \istart // iend = (vend >> shift) & (ptrs - 1)
		mov \istart, \ptrs
		mul \istart, \istart, \count
		add \iend, \iend, \istart // iend += (count - 1) * ptrs
		add \iend, \iend, \istart // iend += count * ptrs
		// our entries span multiple tables

		lsr \istart, \vstart, \shift