From nobody Mon Jun 8 23:58:18 2026 Received: from smtp.smtpout.orange.fr (smtp-23.smtpout.orange.fr [80.12.242.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D68D837FF64 for ; Mon, 25 May 2026 12:31:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.12.242.23 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779712279; cv=none; b=YX0uRvI9GWBn7qOWrJh7LLlqWFhli2HNEESs6yY+WphDiVspTKRiPyfXj3tsB6qRxpONJ88pW+YJdsF10Y+4qX3Dz8pfkIo8mPueOjHKZ8+AWns4vKRLyc5ei6UPBNeUkUxxlKicvzfSz49jZg/xB/cAKxp3Gc5mBwbggyr2jMw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779712279; c=relaxed/simple; bh=VrkAKFVICdseo5IERnTZKJChm5LvacJ6c/KKmZN7LkM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ruzD4K/pf4K/mbDwE9Y4z9Ap/Nw7jTxP3RrSUfgn133JpHrWX4g/tZhUHDxIkCG2B8L84tQtoA4sdo1Hd3cuTjY55PtthuWuiWOCqdUdiA5OTNaqxWTiqjgI02V7HLnk6s/dRvCmeUV/mqh14qdI14dqqEvdJs/2wAj4OFUJuVE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr; spf=pass smtp.mailfrom=wanadoo.fr; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b=tqPBHSC0; arc=none smtp.client-ip=80.12.242.23 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wanadoo.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b="tqPBHSC0" Received: from fedora.home ([10.64.95.102]) by smtp.orange.fr with ESMTP id RUSbwisXnTilpRUSbwCGeI; Mon, 25 May 2026 14:31:09 +0200 Received: from fedora.home ([IPv6:2a01:cb10:785:b00:8347:f260:7456:7662]) by smtp.orange.fr with ESMTPSA id RUSRwq2akQMzxRUSRwv4V0; Mon, 25 May 2026 14:31:02 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wanadoo.fr; s=t20230301; t=1779712262; bh=+24KCHj8Nhbt66nix0buOwJbN6z4qiKLJeZ5FnCFY+o=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=tqPBHSC08dB51FytLI07zypkiHsmNulKxzm+DD6cQVpPAWR90GVK/yYtPQwhd+X3O 61FvAsTzGFC/hf1HbZDfYnmYIzaEzbqQwytc5aJoVH53R6h/k3W4yrV/VJAAp7Qm8V xeS7o5Kn+qH6tbo+hRMhnwzE4zOC5KWpnDniOqVXi+/4aadK7QksAIfUL+Ck8zqfOX okS67F/r1wJPODEZ6CR6lUvyCt9+XsV2boWisGX2Ub07QhwMY/Yjc6LCVRvYvZHSLX sN5o1S9bd0hoP+Tllj9A4Sr/P1+wmBV4hm+ICvJHkHM97LMS2RAhNUQm8BsvBJP7Yf vAM8Gu8NMfdVg== X-ME-Helo: fedora.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Mon, 25 May 2026 14:31:02 +0200 X-ME-IP: 2a01:cb10:785:b00:8347:f260:7456:7662 From: Christophe JAILLET To: Louis Chauvet , Haneen Mohammed , Simona Vetter , Melissa Wen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , dri-devel@lists.freedesktop.org Subject: [PATCH] drm/vkms: Constify struct configfs_item_operations and configfs_group_operations Date: Mon, 25 May 2026 14:30:56 +0200 Message-ID: X-Mailer: git-send-email 2.54.0 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" 'struct configfs_item_operations' and 'configfs_group_operations' are not modified in this driver. Constifying these structures moves some data to a read-only section, so increases overall security, especially when the structure holds some function pointers. On a x86_64, with allmodconfig, as an example: Before: =3D=3D=3D=3D=3D=3D text data bss dec hex filename 21554 10096 128 31778 7c22 drivers/gpu/drm/vkms/vkms_configfs.o After: =3D=3D=3D=3D=3D text data bss dec hex filename 22546 9104 128 31778 7c22 drivers/gpu/drm/vkms/vkms_configfs.o Signed-off-by: Christophe JAILLET --- Compile tested only. --- drivers/gpu/drm/vkms/vkms_configfs.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/vkms/vkms_configfs.c b/drivers/gpu/drm/vkms/vk= ms_configfs.c index 7551b8c7766d..b2b3343f9d35 100644 --- a/drivers/gpu/drm/vkms/vkms_configfs.c +++ b/drivers/gpu/drm/vkms/vkms_configfs.c @@ -189,7 +189,7 @@ static void crtc_release(struct config_item *item) } } =20 -static struct configfs_item_operations crtc_item_operations =3D { +static const struct configfs_item_operations crtc_item_operations =3D { .release =3D &crtc_release, }; =20 @@ -231,7 +231,7 @@ static struct config_group *make_crtc_group(struct conf= ig_group *group, return &crtc->group; } =20 -static struct configfs_group_operations crtcs_group_operations =3D { +static const struct configfs_group_operations crtcs_group_operations =3D { .make_group =3D &make_crtc_group, }; =20 @@ -276,7 +276,7 @@ static void plane_possible_crtcs_drop_link(struct confi= g_item *src, vkms_config_plane_detach_crtc(plane->config, crtc->config); } =20 -static struct configfs_item_operations plane_possible_crtcs_item_operation= s =3D { +static const struct configfs_item_operations plane_possible_crtcs_item_ope= rations =3D { .allow_link =3D plane_possible_crtcs_allow_link, .drop_link =3D plane_possible_crtcs_drop_link, }; @@ -345,7 +345,7 @@ static void plane_release(struct config_item *item) } } =20 -static struct configfs_item_operations plane_item_operations =3D { +static const struct configfs_item_operations plane_item_operations =3D { .release =3D &plane_release, }; =20 @@ -393,7 +393,7 @@ static struct config_group *make_plane_group(struct con= fig_group *group, return &plane->group; } =20 -static struct configfs_group_operations planes_group_operations =3D { +static const struct configfs_group_operations planes_group_operations =3D { .make_group =3D &make_plane_group, }; =20 @@ -438,7 +438,7 @@ static void encoder_possible_crtcs_drop_link(struct con= fig_item *src, vkms_config_encoder_detach_crtc(encoder->config, crtc->config); } =20 -static struct configfs_item_operations encoder_possible_crtcs_item_operati= ons =3D { +static const struct configfs_item_operations encoder_possible_crtcs_item_o= perations =3D { .allow_link =3D encoder_possible_crtcs_allow_link, .drop_link =3D encoder_possible_crtcs_drop_link, }; @@ -462,7 +462,7 @@ static void encoder_release(struct config_item *item) } } =20 -static struct configfs_item_operations encoder_item_operations =3D { +static const struct configfs_item_operations encoder_item_operations =3D { .release =3D &encoder_release, }; =20 @@ -510,7 +510,7 @@ static struct config_group *make_encoder_group(struct c= onfig_group *group, return &encoder->group; } =20 -static struct configfs_group_operations encoders_group_operations =3D { +static const struct configfs_group_operations encoders_group_operations = =3D { .make_group =3D &make_encoder_group, }; =20 @@ -579,7 +579,7 @@ static void connector_release(struct config_item *item) } } =20 -static struct configfs_item_operations connector_item_operations =3D { +static const struct configfs_item_operations connector_item_operations =3D= { .release =3D &connector_release, }; =20 @@ -628,7 +628,7 @@ static void connector_possible_encoders_drop_link(struc= t config_item *src, } } =20 -static struct configfs_item_operations connector_possible_encoders_item_op= erations =3D { +static const struct configfs_item_operations connector_possible_encoders_i= tem_operations =3D { .allow_link =3D connector_possible_encoders_allow_link, .drop_link =3D connector_possible_encoders_drop_link, }; @@ -677,7 +677,7 @@ static struct config_group *make_connector_group(struct= config_group *group, return &connector->group; } =20 -static struct configfs_group_operations connectors_group_operations =3D { +static const struct configfs_group_operations connectors_group_operations = =3D { .make_group =3D &make_connector_group, }; =20 @@ -750,7 +750,7 @@ static void device_release(struct config_item *item) kfree(dev); } =20 -static struct configfs_item_operations device_item_operations =3D { +static const struct configfs_item_operations device_item_operations =3D { .release =3D &device_release, }; =20 @@ -802,7 +802,7 @@ static struct config_group *make_device_group(struct co= nfig_group *group, return &dev->group; } =20 -static struct configfs_group_operations device_group_ops =3D { +static const struct configfs_group_operations device_group_ops =3D { .make_group =3D &make_device_group, }; =20 --=20 2.54.0