From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 75E412147E5 for ; Tue, 12 May 2026 04:27:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778560068; cv=none; b=oUWBg9QPLvh8WiuT8P+vOJIplZs+72P946up63cv4RkuWNBrp+GiAHyGw4c+SLFasmNaFL5/MRzqi2cf7guTvhfHu7nwfJyf/VZOzr8WIMmXXDolr6Zg7w+LJcAOXcqPVLVzIuBMpd/uVVn1xzhBQittBbSqwGROnFACXf0rLVI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778560068; c=relaxed/simple; bh=xDJRaH32+yLusjVCAxK5vM4WnqrNyjYXf93abkp4NCA=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=jL9rejQQf27SAj1tnj+PFH0Gc8MXqTJoKbfjbx2xW310nuaxo1PfxL4v/Ipy0qCFW8vIy6fY+Kd3V/hAUDflKCNF+iTX0U3finEpdOkQV/uq8eXnjeCFawX+OpemFjnpHeooEx733oQKQLj8q0VUTad5uBX8j/BX480I5eNiqMo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=U72gxAxI; arc=none smtp.client-ip=209.85.216.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="U72gxAxI" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-36641fe4aedso7368255a91.1 for ; Mon, 11 May 2026 21:27:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1778560067; x=1779164867; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=VZ+XWn2dXgyyjtWr2zeGi8k33vMJN6tP8ZYBTU3y9Vo=; b=U72gxAxI9diOn3/GBkMcbLpm3ClLWdsADsX7nPgeIt7RuEYKqHdCw4mRq8IMLMhRAh MSNhG8UkwQ7llbyaX5Cn9Ihj04a8cHjaOC7bVqie6GYPzgJZGf7ZYWBT9BfTBDDii+wW mpzGLMBw04nsBf1iwVxkth8pS+Mrmm/wzcsFy3PouhippNdOqUGjCjrqzPZu82u+4vrx SyoLzM6S6Jq87ADggHegXSsuTHmv9YEgkI8llUW4a6zCzXR6ios1ENpSJOAAgvn/v50S oPaBSA4pFLSdypta0mUAVdoJw/P5k/uQz9dOPTyV1eNCS2acramkWnrFWtRBGX+RdmKM JuEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778560067; x=1779164867; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=VZ+XWn2dXgyyjtWr2zeGi8k33vMJN6tP8ZYBTU3y9Vo=; b=AKoYBO3yFzHk+K7tIKsCCcSQ2VLWLZZX0IxiY4HKsly2peUYZAipsgQ2ECne5ZztUR /mZGgjibO19vbob0D37QpveF5EqT3cBEWVbS++Z0ThqWWQ7UQmWQ6JzOKjjW+RSBz1km khC5eBhWdzCLb1Y6bogIwd3B7otSJY6nj/wJEqSl8idljy5o0IbGAMAZMtgK8C5Xe5RV 2UpFoFxHnLUOMY+3eFIKwQ9BO7lwn8uoNzMo0InD5MUZhxsGzXD6tRu7mqNUStsZ+kC0 innYGUobdqe5a310/I+g3/Z9jDs6JWj8erz7X64Jwdm3bI7S2Dh9j4PtGfbWjSeQbuFE qjSA== X-Forwarded-Encrypted: i=1; AFNElJ/CKAePBxe+6VqyjMDAUIhqeHLLoeW6OqPFyjVnhFd0JyCMp0ZYIgvze2SDqVIKEqWSeTLQSsE=@vger.kernel.org X-Gm-Message-State: AOJu0Yzk+N8SJH3JtNtH5AxwVwQvEGYxJHkM7KWIgKkl3p3AXB9Ks85G z/OUAEH4Kcl6Ltb3q0Jo66HnKIy4tC/GFo8ZoesU4iISkA5JYDSArkwmIasGB0s+MN90Mzwa6CT fFw9J+/9y717/0g== X-Received: from qknud4.prod.google.com ([2002:a05:620a:6a84:b0:907:1c56:2cbd]) (user=edumazet job=prod-delivery.src-stubby-dispatcher) by 2002:a05:620a:1a14:b0:8cf:ebeb:c27d with SMTP id af79cd13be357-90cfd74216emr189197585a.54.1778559619867; Mon, 11 May 2026 21:20:19 -0700 (PDT) Date: Tue, 12 May 2026 04:20:19 +0000 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.54.0.563.g4f69b47b94-goog Message-ID: <20260512042019.3300975-1-edumazet@google.com> Subject: [PATCH v2 net-next] ipvlan: use netif_receive_skb() in ipvlan_process_multicast() From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Andrew Lunn , netdev@vger.kernel.org, eric.dumazet@gmail.com, Eric Dumazet Content-Type: text/plain; charset="UTF-8" ipvlan_process_multicast() runs from process context, there is no risk of stack overflow if we call netif_receive_skb() instead of netif_rx(). This avoids some overhead adding/removing skbs to/from a per-cpu backlog and raising/processing NET_RX softirqs. Signed-off-by: Eric Dumazet --- v2: Resend after realizing Sashiko's feedback was not actionable. drivers/net/ipvlan/ipvlan_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c index 1be8620ad3971d281fb36fd0770efd67b566ae60..7ad12dc7845c836bdd04395f153b2b4b397797d6 100644 --- a/drivers/net/ipvlan/ipvlan_core.c +++ b/drivers/net/ipvlan/ipvlan_core.c @@ -286,7 +286,7 @@ void ipvlan_process_multicast(struct work_struct *work) if (tx_pkt) ret = dev_forward_skb(ipvlan->dev, nskb); else - ret = netif_rx(nskb); + ret = netif_receive_skb(nskb); } ipvlan_count_rx(ipvlan, len, ret == NET_RX_SUCCESS, true); local_bh_enable(); -- 2.54.0.563.g4f69b47b94-goog