From nobody Sun Feb 8 08:22:46 2026 Received: from mailtransmit04.runbox.com (mailtransmit04.runbox.com [185.226.149.37]) (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 532FC4A13A0 for ; Wed, 21 Jan 2026 14:58:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.226.149.37 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769007491; cv=none; b=Xq/8I5gs1tpO3Vr/MN+BlyJ/LgfOuvjj8020B/3+IQBq1qr7UFUw7+4ihziqryZm8j/bvQO0cE3TK1je2k88PnIAuStGU41kjnv0UQITghw9UcDAULTKE94u2h98Am1krFzwUCXupmZ+EPULmFUnWN+hn4UQqtxlBjH/ER93DSw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769007491; c=relaxed/simple; bh=foIGQMOAHWwCNroXsDE7jRsNmbGSBwa8yV3vFc2z48A=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=sJW1emcUC9XolozPU1Dl8lXQVH9Z2l3xzLe/p1Hcq6ullvERfYY8Nj3H2Mk+/WPqfuwkKNDJdof02y+KHq6A5yanskx53fhhkidYwnh6hBfRTw8Uescq3+qkIg72knCwkaO0tST50qevJ007nDGVv0uK9o02wiarknvhUys7huo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=runbox.com; dkim=pass (2048-bit key) header.d=runbox.com header.i=@runbox.com header.b=HaW/GUkV; arc=none smtp.client-ip=185.226.149.37 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=runbox.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=runbox.com header.i=@runbox.com header.b="HaW/GUkV" Received: from mailtransmit02.runbox ([10.9.9.162] helo=aibo.runbox.com) by mailtransmit04.runbox.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1viZeU-008XBz-Hc; Wed, 21 Jan 2026 15:57:46 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=runbox.com; s=selector2; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To :Message-Id:Date:Subject:Cc:To:From; bh=2gq8v9rIKK/WZOVtXyQBP19csssyxOXjWNwk4Hfn2/0=; b=HaW/GUkVH2w4hPqHQaP/dYVF2Q pVkYu5IGc+XLh3/i5cXUCnSAfy0Xm5x7V9eMiDozvHjyngPjaJzW8UHxjEwW+1wVpXM0zfssdvF/a joU2beF7UXXt+0JXuf7VT5YFS4IXiXU+0rLoPpEZddPrN5PoMs+4yuyMN5p9v4a4EsI5XLaDEdqXP yNjzgUcGeQWmlqiJnK2cxfEf2+KOyMEMtiKkKBmxfrg3FohGyOzL80P07OCIADWwQH1/PuR4FnPwf jYshxnA3sFoNJS6huJURh5MkMccTOEnv3GWSileZr/JiuF9eLENz2MUr8fvzIlum4zg5Wsk0jnEYk a4znAFog==; Received: from [10.9.9.72] (helo=submission01.runbox) by mailtransmit02.runbox with esmtp (Exim 4.86_2) (envelope-from ) id 1viZeU-0001qf-4L; Wed, 21 Jan 2026 15:57:46 +0100 Received: by submission01.runbox with esmtpsa [Authenticated ID (1493616)] (TLS1.2:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.93) id 1viZeT-00GH6h-PY; Wed, 21 Jan 2026 15:57:45 +0100 From: david.laight.linux@gmail.com To: Nathan Chancellor , Greg Kroah-Hartman , Thomas Gleixner , Peter Zijlstra , Ingo Molnar , Mathieu Desnoyers , Arnd Bergmann , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Yury Norov , Lucas De Marchi , Jani Nikula , Vincent Mailhol , Andy Shevchenko , Kees Cook , Andrew Morton , Tomasz Figa , Marek Szyprowski Cc: David Laight Subject: [PATCH next 03/14] media: videobuf2-core: Use static_assert() for sanity check Date: Wed, 21 Jan 2026 14:57:20 +0000 Message-Id: <20260121145731.3623-4-david.laight.linux@gmail.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20260121145731.3623-1-david.laight.linux@gmail.com> References: <20260121145731.3623-1-david.laight.linux@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: David Laight Compile-time tests being added to BIT() make it an 'integer constant expression' rather than a pre-processor expression for W=3D1 builds. Change the BIT(PLANE_INDEX_BITS) !=3D VIDEO_MAX_PLANES test to use static_assert() so the code compiles. Signed-off-by: David Laight --- drivers/media/common/videobuf2/videobuf2-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/medi= a/common/videobuf2/videobuf2-core.c index 2df566f409b6..90dedab2aeb2 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -37,9 +37,9 @@ #define MAX_BUFFER_INDEX BIT_MASK(30 - PLANE_INDEX_SHIFT) #define BUFFER_INDEX_MASK (MAX_BUFFER_INDEX - 1) =20 -#if BIT(PLANE_INDEX_BITS) !=3D VIDEO_MAX_PLANES -#error PLANE_INDEX_BITS order must be equal to VIDEO_MAX_PLANES -#endif + +static_assert(BIT(PLANE_INDEX_BITS) =3D=3D VIDEO_MAX_PLANES, + "PLANE_INDEX_BITS order must be equal to VIDEO_MAX_PLANES"); =20 static int debug; module_param(debug, int, 0644); --=20 2.39.5