Messages in this thread | | | From | David Laight <> | Subject | RE: [PATCH] fs: fix local var type | Date | Thu, 23 Aug 2018 11:23:35 +0000 |
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From: Michal Hocko > Sent: 23 August 2018 12:14 > > On Thu 23-08-18 01:59:14, Weikang Shi wrote: > > In the seq_hex_dump function,the remaining variable is int, but it receive a type of size_t > argument. > > So I change the type of remaining > > The changelog should explain _why_ we need this fix. Is any of the code > path overflowing? > > Besides that I do not think this fix is complete. What about linelen? > > Why do we even need len to be size_t? Why it cannot be int as well. I > strongly doubt we need more than 32b here.
Although you may well want 'unsigned int' to avoid the sign extension instruction that gets added for x86_64 when a signed int is added to a pointer.
David
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