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    SubjectRe: [RFC PATCH 03/13] usb: remove the usage of the list iterator after the loop
    On Sat, Feb 26, 2022 at 1:42 PM Segher Boessenkool
    <segher@kernel.crashing.org> wrote:
    > On Wed, Feb 23, 2022 at 11:23:39AM -0800, Linus Torvalds wrote:

    > > That said, we seem to only have two cases of it in the kernel, at
    > > least by a x86-64 allmodconfig build. So we could examine the types
    > > there, or we could just add '-Wno-shift-negative-value".
    >
    > Yes.
    >
    > The only reason the warning exists is because it is undefined behaviour
    > (not implementation-defined or anything). The reason it is that in the
    > standard is that it is hard to implement and even describe for machines
    > that are not two's complement. However relevant that is today :-)

    Could gcc follow the clang behavior then and skip the warning and
    sanitizer for this case when -fno-strict-overflow or -fwrapv are used?

    Arnd

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