From: "André Almeida" <andrealmeid@igalia.com>
To: Sasha Levin <sashal@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Darren Hart <dvhart@infradead.org>,
Davidlohr Bueso <dave@stgolabs.net>,
Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Nathan Chancellor <nathan@kernel.org>,
Shuah Khan <shuah@kernel.org>,
llvm@lists.linux.dev, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] selftests/futex: load atomic values before harness comparisons
Date: Tue, 3 Nov 2026 10:03:27 -0300 [thread overview]
Message-ID: <8b8f7eee-96bb-432e-aab0-a76ec727a60f@igalia.com> (raw)
In-Reply-To: <20261014200147.1364987-1-sashal@kernel.org>
Em 14/10/2026 17:01, Sasha Levin escreveu:
> Clang 21 rejects the harness comparison because typeof(*futex) preserves
> the atomic qualification. Load the value explicitly in the three affected
> assertions so the harness compares unsigned integers. Atomic access and
> its existing sequentially consistent ordering are preserved.
>
> The baseline produces three invalid-operands errors. The complete futex
> suite builds with Clang 21 and GCC 14 after the change.
>
> Fixes: 608323bf7bb8 ("selftests: futex: Add tests for robust release operations")
> Signed-off-by: Sasha Levin <sashal@kernel.org>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
prev parent reply other threads:[~2026-11-03 13:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-14 20:01 Sasha Levin
2026-11-03 13:01 ` Sasha Levin
2026-11-03 13:03 ` André Almeida [this message]
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