Re: [PATCH v3 10/21] objtool: Ignore jumps to the end of the function for checksum runs

Peter Zijlstra <[email protected]>
Newsgroups org.kernel.vger.live-patching,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel
Message-ID <[email protected]> 
On Tue, May 12, 2026 at 08:33:44PM -0700, Josh Poimboeuf wrote:
> Sometimes Clang arm64 code jumps to the end of the function for UB.
> No need to make that an error for checksum runs.

I'm not sure I understand the rationale. If the compiler trips UB, we
want to be complaining about that no?

Same as when clang just stops code-gen, also something we commonly see
when it hits UB.
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