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SubjectRe: [PATCH v4 0/7] arm64: untag user pointers passed to the kernel
On Fri, Aug 3, 2018 at 6:43 PM, Matthew Wilcox <willy@infradead.org> wrote:
> On Fri, Aug 03, 2018 at 05:09:45PM +0200, Greg Kroah-Hartman wrote:
>> On Fri, Aug 03, 2018 at 04:59:18PM +0200, Andrey Konovalov wrote:
>> > Started looking at this. When I run sparse with default checks enabled
>> > (make C=1) I get countless warnings. Does anybody actually use it?
>>
>> Try using a more up-to-date version of sparse. Odds are you are using
>> an old one, there is a newer version in a different branch on kernel.org
>> somewhere...
>
> That's not true. Building the current version of sparse from
> git://git.kernel.org/pub/scm/devel/sparse/sparse.git leaves me with a
> thousand errors just building the mm/ directory. A sample:

I'm running the one from https://github.com/lucvoo/sparse-dev which
seems to be even more up to date. Defconfig on x86 gives me ~3000
warnings:

https://gist.github.com/xairy/8adace989f64462e18ffb5cb7d096b73

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