linux-kernel - [BUG] -next objtool build failure (bisected)

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Message-ID: <fe8c909e-bf02-4466-b3eb-0a4747df32e3@paulmck-laptop>
Date: Tue, 15 Oct 2024 11:10:11 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: dmitry.torokhov@...il.com
Cc: bentiss@...nel.org, sfr@...b.auug.org.au, linux-kernel@...r.kernel.org,
	linux-next@...r.kernel.org, linux-toolchains@...r.kernel.org,
	jpoimboe@...nel.org
Subject: [BUG] -next objtool build failure (bisected)

Hello!

The next-20241011 release gets me build errors like the following:

	vmlinux.o: warning: objtool: fetch_item() falls through to next function

Bisection leads me here:

	61595012f280 ("HID: simplify code in fetch_item()")

This diff looks inoffensive to me, but I get this error on this commit
and not on its predecessor.

This build failure happens on quite a few different kernel configurations.
I bisected using this particular reproducer:

tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --buildonly --configs SRCU-T

Thoughts?

							Thanx, Paul