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smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=CLr4w+EI; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=GnxbGwP2; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="CLr4w+EI"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="GnxbGwP2" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1763928130; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=nc4X29K4gmWMDQv5iAIKVGHKqb9bsyOwWA1vx5q2bxw=; b=CLr4w+EIKY3htKNF+HNBSplviqNNZK93+fyvtV6GRRvsPkmrrdbBK+LzWJqZ3Iz1XyWtwg xlWPy6m1E4Zzd3Pr/T2S19CWGV9UzW0r67LlibvEs9BZiap0MgAdWAfuEcR33nU5ZLjCZR UJxIVkYi7ybQkD5AM9j3GKjBzYhEowLobgIpgj20AuP45c7DPged94HrHefKuQKRBWHu4d 0O4UvqPj7nALDpxBRjcUqIBH65cDMKLINnLLLI9FvV0d6fWhV5MfUQOt9typZy3mOD11H1 bWFIctHwmGUpXbVD0iGVRN4dGtQUJyg2E0JnhoNgRsIa3Ql3heEl5pJVu91oWg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1763928130; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=nc4X29K4gmWMDQv5iAIKVGHKqb9bsyOwWA1vx5q2bxw=; b=GnxbGwP22UmW38kOzrstcqCxFTe3uCSiwHjXhoBSKdlFt6Tq+YBKMhN5vaOrD+MXMD1EnA +vhvKNf67jUXv2CA== To: Arnd Bergmann , kernel test robot , =?utf-8?Q?Andr=C3=A9?= Almeida , Ingo Molnar , Peter Zijlstra , Darren Hart , Davidlohr Bueso , Sebastian Andrzej Siewior , Waiman Long , Ryan Houdek Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-api@vger.kernel.org, kernel-dev@igalia.com Subject: Re: [PATCH v6 6/9] futex: Wire up get_robust_list2 syscall In-Reply-To: <326957b0-fbce-4850-a8fb-8eed90fc4fae@app.fastmail.com> References: <20251122-tonyk-robust_futex-v6-6-05fea005a0fd@igalia.com> <202511221454.rsysOoSt-lkp@intel.com> <87ms4cio14.ffs@tglx> <326957b0-fbce-4850-a8fb-8eed90fc4fae@app.fastmail.com> Date: Sun, 23 Nov 2025 21:02:09 +0100 Message-ID: <87jyzgikla.ffs@tglx> Precedence: bulk X-Mailing-List: linux-api@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Sun, Nov 23 2025 at 20:19, Arnd Bergmann wrote: > On Sun, Nov 23, 2025, at 19:47, Thomas Gleixner wrote: >> On Sat, Nov 22 2025 at 14:49, kernel test robot wrote: >>> kernel test robot noticed the following build warnings: >>> >>> [auto build test WARNING on c42ba5a87bdccbca11403b7ca8bad1a57b833732] >>> >>> url: https://github.com/intel-lab-lkp/linux/commits/Andr-Almeida/futex-Use-explicit-sizes-for-compat_robust_list-structs/20251122-135406 >>> base: c42ba5a87bdccbca11403b7ca8bad1a57b833732 >>> patch link: https://lore.kernel.org/r/20251122-tonyk-robust_futex-v6-6-05fea005a0fd%40igalia.com >>> patch subject: [PATCH v6 6/9] futex: Wire up get_robust_list2 syscall >>> config: arc-allnoconfig (https://download.01.org/0day-ci/archive/20251122/202511221454.rsysOoSt-lkp@intel.com/config) >>> compiler: arc-linux-gcc (GCC) 15.1.0 >>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251122/202511221454.rsysOoSt-lkp@intel.com/reproduce) >>> >>> If you fix the issue in a separate patch/commit (i.e. not just a new version of >>> the same patch/commit), kindly add following tags >>> | Reported-by: kernel test robot >>> | Closes: https://lore.kernel.org/oe-kbuild-all/202511221454.rsysOoSt-lkp@intel.com/ >>> >>> All warnings (new ones prefixed by >>): >>> >>>>> :1627:2: warning: #warning syscall get_robust_list2 not implemented [-Wcpp] >>> -- >>>>> :1627:2: warning: #warning syscall get_robust_list2 not implemented [-Wcpp] >> >> Lacks a COND_SYSCALL() > > No, it's actually > > scripts/syscall.tbl > > that is missing, which means that the newer architectures > are missing the update. This used to be include/uapi/asm/unistd.h, > which still exists but is now unused. So it's both. That syscall depends on CONFIG_FUTEX, which means COND_SYCALL() is required and it's actually added in patch 9/9 while 5/9 which adds the set() variant adds it right away :) Thanks, tglx