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Mon, 23 Feb 2026 20:52:59 -0800 (PST) Received: from DC6WP-EXCH02.marvell.com (10.76.176.209) by DC6WP-EXCH02.marvell.com (10.76.176.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.25; Mon, 23 Feb 2026 20:52:57 -0800 Received: from maili.marvell.com (10.69.176.80) by DC6WP-EXCH02.marvell.com (10.76.176.209) with Microsoft SMTP Server id 15.2.1544.25 via Frontend Transport; Mon, 23 Feb 2026 20:52:57 -0800 Received: from localhost.localdomain (unknown [10.28.36.175]) by maili.marvell.com (Postfix) with ESMTP id 913163F70CF; Mon, 23 Feb 2026 20:52:54 -0800 (PST) From: Srujana Challa To: , CC: , , , , , , , , , , Subject: [PATCH net-next,2/2] virtio_net: replace RSS key size max check with BUILD_BUG_ON Date: Tue, 24 Feb 2026 10:22:49 +0530 Message-ID: <20260224045249.933178-2-schalla@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260224045249.933178-1-schalla@marvell.com> References: <20260224045249.933178-1-schalla@marvell.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-ORIG-GUID: JX3T82BzDMseqW1046oOTANVoAhCDXwS X-Proofpoint-GUID: JX3T82BzDMseqW1046oOTANVoAhCDXwS X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI0MDAzOCBTYWx0ZWRfX2oyqKzfDXfZO Q3h5HzrpnxGj+MYfziexYoLwmahKyHcl38WNN89Gozg+Ap+GXb8DpTRDusfMz/IAN4gMIm75s10 rdMa0U5JXNaYP3upnE+JVfYCSyXKVbf3Zp0W5Wwfs+HmV27i6Tmge3ZKqBm5Uwf8AxniIYM/PyH ibotz97y7wVPyn8bqc4bW4WWJmOjojAxGDPQMxa/qhWXMwUxQ10nfoR1rsT5GzALjS8aN4AKv4B YoKGLAMsb+UUDjbnmSENX6QpDUIHXo82UgVBcPuVUO/3Jo4duQCZjDsY7xDk6uuBcdJnTE2mKk7 irLpFMjAkxb7+WLvV4mgc67Xib2SUvOPvcmKrIopUkUyvYYifJQt0lujCJWV6kqniM48dapFzLW nX9uNYv0TigFla4Mxk0Ft63QvSpfo5nZ5Jj/+NRL8ecl1lx/TZQtfOjLslwm2QOyED8pvTUEpkH 84AQFBc+ZRYcGq1akIw== X-Authority-Analysis: v=2.4 cv=H5XWAuYi c=1 sm=1 tr=0 ts=699d2eab cx=c_pps a=gIfcoYsirJbf48DBMSPrZA==:117 a=gIfcoYsirJbf48DBMSPrZA==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=l0iWHRpgs5sLHlkKQ1IR:22 a=QXcCYyLzdtTjyudCfB6f:22 a=M5GUcnROAAAA:8 a=BwTn4DStoJ9Fkl0ccMAA:9 a=OBjm3rFKGHvpk9ecZwUJ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-23_06,2026-02-23_03,2025-10-01_01 Since NETDEV_RSS_KEY_LEN was increased to 256 in net-next, use BUILD_BUG_ON to enforce the limit at compile time and remove the redundant runtime max check. Signed-off-by: Srujana Challa --- drivers/net/virtio_net.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index eeefe8abc122..3092d5d9d3e4 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -6639,13 +6639,7 @@ static int virtnet_validate(struct virtio_device *vdev) __virtio_clear_bit(vdev, VIRTIO_NET_F_RSS); __virtio_clear_bit(vdev, VIRTIO_NET_F_HASH_REPORT); } - if (key_sz > NETDEV_RSS_KEY_LEN) { - dev_warn(&vdev->dev, - "rss_max_key_size=%u exceeds driver limit %u, disabling RSS\n", - key_sz, NETDEV_RSS_KEY_LEN); - __virtio_clear_bit(vdev, VIRTIO_NET_F_RSS); - __virtio_clear_bit(vdev, VIRTIO_NET_F_HASH_REPORT); - } + BUILD_BUG_ON(type_max(vi->rss_key_size) >= NETDEV_RSS_KEY_LEN); } return 0; -- 2.25.1