From nobody Sat Feb 7 11:31:20 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AB43F28DCB; Wed, 21 Aug 2024 20:16:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724271384; cv=none; b=ZTQghS2uFeRWa2CvfU/alv6DUBq3sSxCYVb5hyTWssX/0ToY1rexl9nchXc83W6CWvGUfSOq0/32RTXR1w3jDZvvn4H4Hs286NncEp51UoT06pyZFr6UQpLQTLYR06NVExiNpLfMgVpXytk+sNkuz1IN5nzHWz1NOKm808alQOU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724271384; c=relaxed/simple; bh=u4IEyRI7AbwbX+N5Tu/Kt1Y5We5BuarQCzy6U7tDZlU=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=hhfhJuPl28lxHld6ZlwSTFRIZjk5sTcpu6iP4CsHjfZD8I4i6az4w0Zv/5OpikYk1w4JdyLDqG7HJVi1vAvsVMtjimNi0t19F1J+fqZq+W1d2ZIRMulo11h7vGfeQl5Rmsyw0fU9orH5uXSrsdl5SWXQg7Qgx23VE9C86AyguBU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qRVO8IqT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qRVO8IqT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62604C32781; Wed, 21 Aug 2024 20:16:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724271384; bh=u4IEyRI7AbwbX+N5Tu/Kt1Y5We5BuarQCzy6U7tDZlU=; h=Date:From:To:Cc:Subject:From; b=qRVO8IqTr732AA7WyRGGblJ8wkdCOHVdBDiamiZsqxPYHiqfcqRqC4lSbsiuvGB72 8YdcipZn9BnJV5bOuQkCLbIaKsWV7YeeFgiIv3Nha9eQDfEjY7JHalhyCTHw8y5C3m ByBR1zqAQLyrQ7H5OvQjyV7shw4X7xHfIP3NxxlsOTJgSQcxQgn2PjA2rJFhyi5YIA Nesg4bxsqMJN4BUJDpVdyhIj+NbDHsjHb4BsYCWOnhk7POsYzEuM4PiL1DO7pCSXDr DPLBMrRtTLeJtclKCDccYEDCDcG3y1azWRlfpOF3lub3yda2EntJZfwGhd4cB40Ek+ veCze51ImXt3w== Date: Wed, 21 Aug 2024 14:16:21 -0600 From: "Gustavo A. R. Silva" To: Karol Herbst , Lyude Paul , Danilo Krummrich , David Airlie , Daniel Vetter Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" , linux-hardening@vger.kernel.org Subject: [PATCH][next] drm/nouveau: Avoid -Wflex-array-member-not-at-end warning Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use the `DEFINE_RAW_FLEX()` helper for an on-stack definition of a flexible structure where the size of the flexible-array member is known at compile-time, and refactor the rest of the code, accordingly. So, with this, fix the following warning: drivers/gpu/drm/nouveau/dispnv50/disp.c:779:47: warning: structure containi= ng a flexible array member is not at the end of another structure [-Wflex-a= rray-member-not-at-end] Signed-off-by: Gustavo A. R. Silva Reviewed-by: Kees Cook --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouv= eau/dispnv50/disp.c index eed579a6c858..ddddc69640be 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -774,11 +774,9 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct n= ouveau_crtc *nv_crtc, struct drm_hdmi_info *hdmi =3D &nv_connector->base.display_info.hdmi; union hdmi_infoframe infoframe =3D { 0 }; const u8 rekey =3D 56; /* binary driver, and tegra, constant */ + DEFINE_RAW_FLEX(struct nvif_outp_infoframe_v0, args, data, 17); + const u8 data_len =3D 17; /* same length as in DEFINE_RAW_FLEX above. */ u32 max_ac_packet; - struct { - struct nvif_outp_infoframe_v0 infoframe; - u8 data[17]; - } args =3D { 0 }; int ret, size; =20 max_ac_packet =3D mode->htotal - mode->hdisplay; @@ -815,29 +813,29 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct = nouveau_crtc *nv_crtc, return; =20 /* AVI InfoFrame. */ - args.infoframe.version =3D 0; - args.infoframe.head =3D nv_crtc->index; + args->version =3D 0; + args->head =3D nv_crtc->index; =20 if (!drm_hdmi_avi_infoframe_from_display_mode(&infoframe.avi, &nv_connect= or->base, mode)) { drm_hdmi_avi_infoframe_quant_range(&infoframe.avi, &nv_connector->base, = mode, HDMI_QUANTIZATION_RANGE_FULL); =20 - size =3D hdmi_infoframe_pack(&infoframe, args.data, ARRAY_SIZE(args.data= )); + size =3D hdmi_infoframe_pack(&infoframe, args->data, data_len); } else { size =3D 0; } =20 - nvif_outp_infoframe(&nv_encoder->outp, NVIF_OUTP_INFOFRAME_V0_AVI, &args.= infoframe, size); + nvif_outp_infoframe(&nv_encoder->outp, NVIF_OUTP_INFOFRAME_V0_AVI, args, = size); =20 /* Vendor InfoFrame. */ - memset(&args.data, 0, sizeof(args.data)); + memset(args->data, 0, data_len); if (!drm_hdmi_vendor_infoframe_from_display_mode(&infoframe.vendor.hdmi, &nv_connector->base, mode)) - size =3D hdmi_infoframe_pack(&infoframe, args.data, ARRAY_SIZE(args.data= )); + size =3D hdmi_infoframe_pack(&infoframe, args->data, data_len); else size =3D 0; =20 - nvif_outp_infoframe(&nv_encoder->outp, NVIF_OUTP_INFOFRAME_V0_VSI, &args.= infoframe, size); + nvif_outp_infoframe(&nv_encoder->outp, NVIF_OUTP_INFOFRAME_V0_VSI, args, = size); =20 nv_encoder->hdmi.enabled =3D true; } --=20 2.34.1