From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.mindbit.ro (xs1.mindbit.ro [80.86.107.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D5285248893; Sat, 19 Sep 2026 14:58:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.86.107.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789829912; cv=none; b=F3sXvhhlNEpGt5yql9wGc0BprKvxSxxwiwBCywW96rim9CWuOuIgd4HUsQoFYC9NtyiaMH/T+Wn0KnJP9pafZjRO1vWFQGoCbNOfWliA+9KEYcBjkaB+UJGvdXObzRyiV19N7oCF79bgVHA9HC+4oe/QnkKaqe3Dc5CN5XP1Jcc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789829912; c=relaxed/simple; bh=+TKok9hDY7p6Z7PJqFMlszfKsfnvblxalzrMKMB6/q0=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=qFst44fnFhSMASg2JPKabquNjdIHQPiEcuycWEt/NyEmHEI+MjaAY232Z80Ki043AudmZnxmFp6WYmD4JMSMTa80+xThqAVu9RM2CebVCBq+j+ChmtyafutcpZ3oS3/C6waRpdLlIxNR7t0o3rT7lGpGjS0xYv+VC4bW2sWR9Zw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=rendec.net; spf=pass smtp.mailfrom=rendec.net; dkim=pass (2048-bit key) header.d=rendec.net header.i=@rendec.net header.b=Jvp0Ar6x; arc=none smtp.client-ip=80.86.107.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=rendec.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rendec.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rendec.net header.i=@rendec.net header.b="Jvp0Ar6x" Received: from dog.kanata.rendec.net (pool-174-112-193-187.cpe.net.cable.rogers.com [174.112.193.187]) by mail.mindbit.ro (Postfix) with ESMTPSA id 76994D07A0; Sat, 19 Sep 2026 17:58:18 +0300 (EEST) DKIM-Filter: OpenDKIM Filter v2.11.0 mail.mindbit.ro 76994D07A0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rendec.net; s=default; t=1789829899; bh=+TKok9hDY7p6Z7PJqFMlszfKsfnvblxalzrMKMB6/q0=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=Jvp0Ar6xR4ZpiyfqrF7J0StzxmS2aizkdXj11lYVxsiDzhlswXGVjC3fU5+HrQrJs 15fJ9Cu8X59KIAoVI2VX9iMCPysTxorrPjnhvZqPcYj/LF5UuDPxuMobkHEBEa9yMQ AP5UvQ5VxX2wkwHPbIM8DWUq1HC/NOthnlrqzhv0YRTmgPwbRT8bGAVklmytEGMI3S t1tuJqNbA2fc+a1SBTKQrk5SLFI7C0j+7PsNqVvuBUGhUj0SVNX1Jy2acdcxUpcuMQ aGLy3GR/OpUrP1Oue+MKG6BElK1xSdY+R3PXfruUSOGfrPXAOaLlwjERnRKEE+Pvls tCkR0K6f9RHpg== Message-ID: <7c106eb265802b0db161101d376442b2aaf33c08.camel@rendec.net> Subject: Re: [PATCH 0/3] irqchip/gic-v3: Lifetime and range fixes in the GICv3 and ITS drivers From: Radu Rendec To: Fuad Tabba , Marc Zyngier , Thomas Gleixner Cc: Kemeng Shi , Will Deacon , Fuad Tabba , stable@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Date: Sat, 19 Sep 2026 10:58:16 -0400 In-Reply-To: <20260908142632.2795308-1-fuad.tabba@linux.dev> References: <20260908142632.2795308-1-fuad.tabba@linux.dev> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Tue, 2026-09-08 at 15:26 +0100, Fuad Tabba wrote: > Hi folks, >=20 > Three fixes to the GICv3 and ITS drivers, from reviewing the GIC series > floating around and chasing down Sashiko's reports. >=20 > The first releases the partition node that gic_irq_get_fwspec_info() > takes from of_find_node_by_phandle() and never puts. Sashiko raised it > on an of/irq patch of mine, and I said a fix was forthcoming [1]. >=20 > The second widens the per-device MSI clamp, which truncates to zero when > GITS_TYPER.ID_bits is at its maximum and then denies every MSI on that > ITS. I couldn't find an implementation that reports that maximum, so > this is one value at the edge rather than something anyone is hitting. > It carries Cc: stable because the commit it fixes was itself > backported, so drop the tag if you'd rather. >=20 > The third clears vpt_page once its_vpe_teardown() has freed it, so the > NULL guard holds if teardown runs again on the same vPE. >=20 > Based on Linux 7.3-rc2 (df2908090cda3). >=20 > Cheers, > /fuad >=20 > [1] https://lore.kernel.org/all/CA+EHjTx7eP_30vP47=3DUFk_wMAut-2uf+2DF-MZ= qn2SLE_k-8qg@mail.gmail.com/ >=20 > Fuad Tabba (3): > =C2=A0 irqchip/gic-v3: Release the partition node in > =C2=A0=C2=A0=C2=A0 gic_irq_get_fwspec_info() > =C2=A0 irqchip/gic-v3-its: Don't clamp nvecs to zero when id_bits is 32 > =C2=A0 irqchip/gic-v3-its: Clear vpt_page after freeing the pending table >=20 > =C2=A0drivers/irqchip/irq-gic-v3-its.c | 3 ++- > =C2=A0drivers/irqchip/irq-gic-v3.c=C2=A0=C2=A0=C2=A0=C2=A0 | 7 ++++--- > =C2=A02 files changed, 6 insertions(+), 4 deletions(-) >=20 >=20 > base-commit: df2908090cda368b01ff43709f51890076c56157 Reviewed-by: Radu Rendec