On Tue, 14 Jul 2020 07:54:04 +0800, carver said: > Hello, > > Macro *compute_indices* in arch/arm64/kernel/head.S have a comment > as shown below: > mov \istart, \ptrs > mul \istart, \istart, \count > add \iend, \iend, \istart // iend += (count - 1) * ptrs > > I am wondering whether this comment should be change to > "iend += count * ptrs". Examine the uses of the macro, and see where they expect the result to be pointing if there is exactly one entry. (Hint - what's the address of the first entry of a C array, and what's the next location after the array, and how would the corresponding C code for iterating across the array have as the termination condition?)
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